JP5856657B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device for cooking food with steam.

  When cooking food, it is desirable to suppress cell destruction of the food during cooking and prevent the outflow of nutrients contained in the food so that food with high nutritional value can be ingested. When food is cooked using an oven (heating cooker), heat can be conducted at an appropriate temperature to the center of the food in a high-temperature atmosphere, and nutrients can be prevented from flowing out of the food.

  In recent years, there has been proposed a cooking device using steam capable of preventing the outflow of food nutrients and excluding fat, in response to an increase in health consciousness (see, for example, Patent Document 1). The heating cooker described in Patent Document 1 includes a heating chamber for heating food and a steam generator for evaporating supplied water by a heater, and high-temperature steam from the steam generator to the heating chamber. Supply. The steam supplied to the heating chamber touches the food, and a large amount of heat is conducted from the steam to the food. As a result, fat is efficiently removed from food.

JP 2006-84059 A

  Recently, in order to promote the elimination of fat, it has been required to further increase the temperature of the steam. In order to meet this requirement, it is conceivable to further increase the temperature of the heater. However, the heat resistance temperature of the steam generator is limited, and it is not preferable to raise the temperature of the heater excessively from the viewpoint of safety. There is also a problem that the power consumption of the heater increases.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a cooking device capable of safely and efficiently heating steam without excessively increasing the temperature of a heat source such as a heater. To do.

The cooking device according to the present invention is a cooking device comprising a heating chamber for containing and heating food, a steam generator for supplying steam to the heating chamber, and a water supply means for supplying water to the steam generator. the steam generator is provided with a plurality of heaters, at least one of the plurality of heaters is the closest to the evaporation heater in a position that will be supplied from the water supply means, at least another one of the plurality of heaters Is a heater disposed downstream of the evaporation heater in the steam flow path in the steam generator, for heating the steam, and on the inner surface of the steam generator, the heater And a radiation fin straddling the position where the evaporation heater is disposed .

In the heating cooker according to the present invention, the steam generator is characterized in that the evaporating heater and the heating heater are arranged substantially parallel to a vertical direction .

In the cooking device according to the present invention, heat is continuously supplied to the steam while the steam flows along the radiation fins.

FIG. 3 is a right side cross-sectional view schematically showing the heating cooker according to the first embodiment. It is front sectional drawing which shows a heating cooker schematically. It is a front view which shows the structure of a steam generator. It is a rear view which shows the structure of a steam generator. It is a vertical front view which shows the structure of a steam generator. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG. It is an inner side perspective view which shows the structure of a cover body. It is a schematic front view of the steam generator in the heating cooker according to the second embodiment. FIG. 10 is a schematic front view of a steam generator in a heating cooker according to Embodiment 3. FIG. 10 is a perspective view schematically showing a steam generator in a heating cooker according to a fourth embodiment. FIG. 10 is a front view schematically showing a steam generator in a heating cooker according to a fifth embodiment. It is the XIII-XIII sectional view taken on the line of FIG. FIG. 10 is a front view schematically showing a steam generator in a heating cooker according to a sixth embodiment. It is the XV-XV sectional view taken on the line of FIG.

(Embodiment 1)
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a cooking device according to a first embodiment. FIG. 1 is a right side sectional view schematically showing a cooking device, and FIG. 2 is a front sectional view schematically showing the cooking device.

  In the figure, reference numeral 1 denotes a rectangular parallelepiped housing, in which a heating chamber 11 for heating food is accommodated. In the heating chamber 11, two trays (receiving trays) 60 and 60 are accommodated side by side, and a placement net 61 is provided on the tray 60. The food 100 is placed on the placement net 61.

  An outside air inflow duct 70 is formed between the housing 1 and the heating chamber 11 and below and on the right side of the heating chamber 11. A suction port 71 is opened at the lower portion of the housing 1, and the outside air inflow duct 70 is connected to the suction port 71. An opening (not shown) is provided in the rear surface portion of the housing 1, and the outside air inflow duct 70 is connected to the opening.

  In the outside air inflow duct 70, the cooling fan 23, the electrical component 75, and the magnetron 13 are arranged. The cooling fan 23 takes outside air into the outside air inflow duct 70 via the suction port 71 and cools the electrical component 75 and the magnetron 13 that generate heat. The air taken into the outside air inflow duct 70 is discharged from the opening.

  The electrical unit 75 has a drive circuit that drives each part of the cooking device and a control unit that controls the drive circuit. The control unit performs necessary heating control based on an input signal from an operation unit (not shown) in a microwave heating mode in which food is heated by microwaves. The magnetron 13 generates electromagnetic waves for cooking and supplies microwaves to the heating chamber 11 via the waveguide 76. The waveguide 76 is provided with the rotating antenna 14 and the motor 24 that drives the rotating antenna 14, and the microwave is uniformly supplied to the heating chamber 11 by the rotating antenna 14.

  An intake duct 18 is provided in the outside air inflow duct 70 on the right side of the heating chamber 11. An opening is provided on the right side surface of the housing 1, and the intake duct 18 is connected to the opening. An intake fan 25 is provided in the opening. An air supply port 55 is provided in the right side surface portion 11 a (wall body) of the heating chamber 11, and the intake duct 18 is connected to the air supply port 55. By driving the intake fan 25, outside air is taken into the intake duct 18 and supplied to the heating chamber 11 from the air supply port 55.

  An exhaust duct 19 is provided on the right rear side of the heating chamber 11. The exhaust duct 19 extends upward, and an exhaust port 19a is provided at the extended end. An intake 56 for taking in the air in the heating chamber 11 is opened at the rear of the right side surface portion 11 a of the heating chamber 11, and the exhaust duct 19 is connected to the intake 56. The air in the heating chamber 11 is taken into the exhaust duct 19 through the intake port 56 and is discharged to the outside through the exhaust port 19a.

  An intake port 51 is opened at the center of the rear surface portion of the heating chamber 11, and a plurality of jet ports 52 are opened around the intake port 51 in the rear surface portion of the heating chamber 11. A circulation duct 50 is provided on the rear side of the heating chamber 11, and the circulation duct 50 is connected to the intake port 51 and the jet port 52. A circulation heater 22 and a circulation fan 53 are provided in the circulation duct 50. A fan motor 54 is connected to the circulation fan 53. When the fan motor 54 is driven, air in the heating chamber 11 is sucked from the intake port 51 and heated by the circulation heater 22, and then from the outlet 52. Return to the heating chamber 11.

  A temperature sensor 21 that detects the temperature in the heating chamber 11 is provided on the top surface of the heating chamber 11. The circulating heater 22 is controlled based on the temperature detected by the temperature sensor 21, and maintains the steam supplied from the steam generator A, which will be described later, into the heating chamber 11 at a desired temperature.

  A plurality of outlets 26, 26,..., 26 are arranged in two upper and lower rows in the upper center of the right side surface portion 11 a of the heating chamber 11. The steam generator A is fixed to the outside of the right side surface portion 11a so as to face the air outlet 26. The steam generated in the steam generator A is blown out from the upper and lower two rows of outlets 26. The steam blown out from the upper outlet 26 mainly contacts the food placed on the upper tray 60, and the steam blown out from the lower outlet 26 mainly puts on the lower tray 60. Contact the placed food.

  A detachable water supply tank 15 is arranged on the right side of the steam generator A, and the water supply tank 15 is connected to a water supply pipe 16 (water supply means) via a water supply pump 17. The feed water pipe 16 is connected to the steam generator A, and water is supplied from the feed water tank 15 to the steam generator A by driving the feed water pump 17.

  The steam generator A includes a U-shaped heater 2 that is long in the front-rear direction and has a front portion curved in a semicircular shape. The steam generator A evaporates the water supplied from the water supply tank 15 by the heater 2. The generated steam is supplied to the heating chamber 11 through the air outlet 26, and the food 100 is cooked.

  3 is a front view showing the configuration of the steam generator, FIG. 4 is a rear view showing the configuration of the steam generator, FIG. 5 is a longitudinal front view showing the configuration of the steam generator, and FIG. 6 is a VI-VI line in FIG. FIG. 7 is a sectional view taken along the line VII-VII in FIG. 3, and FIG. 8 is an inner perspective view showing the structure of the lid.

  As shown in FIGS. 3 and 4, the steam generator A has a plate-shaped water heating body 3 having the outlet 31 and the heater 2, and a water supply port 41 to which the water supply pipe 16 is connected. 3 and a horizontally long lid 4 attached to one surface side.

  The water heater 3 is made of a metallic material having high thermal conductivity such as aluminum and aluminum alloy, and includes a plate portion 3a (wall portion) that is long in the lateral direction and has a substantially rectangular shape in front view. A horizontally long first recess 32 is provided on the upper surface of the plate portion 3a. As shown in FIG. 5, a laterally long second recess 33 and an annular wall 34 protruding from the outer periphery of the second recess 33 are provided on the other surface of the plate portion 3 a.

  As shown in FIG. 6, the lid 4 faces the first recess 32, and the horizontally long evaporation chamber 5 is formed by the lid 4 and the first recess 32. On the other hand, as shown in FIGS. 5 and 7, a horizontally long buffer chamber 6 is formed on the other surface side of the plate portion 3 a by the other surface of the plate portion 3 a including the second recess 33 and the annular wall 34. . The buffer chamber 6 is adjacent to the evaporation chamber 5 through the plate portion 3 a, and the heat of the evaporation chamber 5 is conducted to the buffer chamber 6.

  A heater 2 is embedded in the plate portion 3a along the front-rear direction of the heating chamber 6. The heater 2 includes a heat source 2a located on the upper side and a heat source 2b located on the lower side. The heat source 2a and the heat source 2b are arranged in the vertical direction. The heat source 2a is close to the evaporation chamber 5, and the heat source 2b is separated from the evaporation chamber 5 downward. The heat source 2 a and the heat source 2 b are close to the buffer chamber 6. That is, the heat source 2a is mainly used for the purpose of evaporating water, and the heat source 2b is mainly used for the purpose of heating steam.

  The heat source 2b is located in the vicinity of the air outlet 26. Therefore, the temperature of the steam rises in the vicinity of the outlet 26, and the steam heated to a high temperature is immediately supplied to the heating chamber 11. Further, by disposing at a position away from the evaporation chamber 5, the heat of the heat source 2b is mainly conducted to the buffer chamber 6, and the temperature of the buffer chamber 6 rises rapidly.

  The heater 2 is disposed between the buffer chamber 6 and the evaporation chamber 5, and the heat of the heater 2 is supplied to both chambers, so that the thermal efficiency for evaporation and vapor reheating is improved. In addition, the heat source 2a and the heat source 2b are located in a plane substantially parallel to the plate portion 3a, and the steam generation container A is promoted to be thinner and smaller, and steam is formed in a narrow space between the housing 1 and the heating chamber 11. It becomes easy to arrange the generating container A.

  A lead-out port 31 is opened at the top of the plate portion 3a. When water is supplied from the water supply port 41 to the evaporation chamber 5, the water is evaporated in the evaporation chamber 5 by the heat source 2 a, and the generated steam is led out to the buffer chamber 6 through the outlet port 31 and stored.

  The outlet 31 is located above the outlet 26. The steam supplied from the outlet 31 fills the buffer chamber 6 and is blown out from the outlet 26 located on the lower side. Therefore, a large amount of steam is heated in the buffer chamber 6, and high-temperature steam is supplied to the heating chamber 11 without interruption.

  The plate portion 3a is integrally provided with an extension portion 3b that extends upward from one lateral side of the plate portion 3a in a tapered manner and faces the water supply port 41. The first recess 32 is formed across the extension 3b. The first recess 32 is recessed in a direction away from the lid 4.

  The U-shaped heater 2 is embedded in the lower portion of the plate portion 3a by die casting with the heat source 2a on the upper side and the heat source 2b on the lower side. The curved portion of the heater 2 is located below the extension portion 3b. Two attachment pieces 35, 35 projecting upward are integrally provided on the upper portion of the plate portion 3 a so as to be separated from each other in the lateral direction. The attachment piece 35 has an insertion hole 35a into which the attachment shaft 27 is inserted.

  As shown in FIGS. 5 and 6, in the water heater 3, a temperature sensor 7 is provided at a position below the extending portion 3 b and facing the curved portion of the U-shaped heater 2. The temperature sensor 7 includes an element (thermistor) whose electric resistance value changes according to a temperature change, monitors the temperature of the water heater 3 and is emptied in the evaporation chamber 5, or the temperature in the evaporation chamber 5 is a temperature. Used to prevent shortages. An annular groove 3c is provided on the peripheral edge of one surface of the plate portion 3a. A sealing member 36 is fitted and held in the annular groove 3c, and a gap between the lid body 4 is sealed.

  The first recess 32 has a deep bottom portion 32a that is recessed over the extending portion 3b, and a shallow bottom portion 32b that continues to the lower edge of the deep bottom portion 32a via a curved corner. A heat source 2a for evaporation is disposed at a position facing the lower surface of the deep bottom portion 32a and the shallow bottom portion 32b.

  The lid 4 includes a plate portion 4a that is long in the lateral direction and has a substantially rectangular shape in front view. An outward convex portion 4b protruding in a direction away from the water heater 3 is provided at the lower portion of the plate portion 4a. The inner surface of the outwardly projecting portion 4b is a horizontally long third recess 42. The first recess 32 and the third recess 42 form a long evaporation chamber 5 in the lateral direction along the heat source 2a for evaporation.

  As shown in FIG.4 and FIG.6, the one side part along the horizontal direction of the board part 4a has the extension part 4c extended in the taper shape upwards. An inward convex portion 43 is formed in the central portion excluding the peripheral edge of the extending portion 4c, and the outer surface is a circular recess, and the tip is opposed to one surface of the extending portion 3b. The water supply port 41 is opened at the center of the inward convex portion 43, and the distal end portion of the water supply pipe 16 is fitted and held in the water supply port 41. The peripheral part of the cover body 4 is attached to the peripheral part of the water heating body 3 by a plurality of male screws so as to be removable.

  The front end portion of the water supply pipe 16 extends from the water supply port 41 toward the extension portion 3b, and faces one surface of the extension portion 3b with a slight interval. Therefore, the water supplied from the water supply pipe 16 to the evaporation chamber 5 flows down along one surface of the extending portion 3b.

  The lower surface of the third recess 42, in other words, the lower surface of the evaporation chamber 5 is inclined so that the outlet port 31 side is higher and the water supply port 41 side is lower, and even if the supplied water flows down to the lower surface of the evaporation chamber 5 , And can be evaporated on the side away from the outlet 31.

  The outlet 31 penetrates the upper part of the plate portion 3a and forms an oval shape that is long in the lateral direction. In addition, the outlet 31 is a position separated from the water supply port 41 in the horizontal direction, and is arranged at substantially the same position as the water supply port 41 in the vertical direction.

  As described above, the vapor generated in the evaporation chamber 5 flows into the buffer chamber 6 through the outlet 31. As shown in FIGS. 5 and 7, the buffer chamber 6 is formed by the other surface of the plate portion 3 a including the second recess 33 and the annular wall 34. The central part of the buffer chamber 6 is a plate-like guide wall that is long in the lateral direction and guides steam from the outlet 31 to the direction intersecting the thickness direction of the plate part 3a (the direction along the other surface of the plate part 3a). 37 is provided. The induction wall 37 protrudes toward the heating chamber 11 from the other surface of the plate portion 3a. The steam in the buffer chamber 6 meanders along the guide wall 37 and flows for a long time, and a large amount of heat is supplied from the heating chamber 11 to the steam. In addition, when the guide wall 37 is designed to be long, the amount of heat supplied to the steam increases.

  The induction wall 37 is located between the heat sources 2a and 2b in the vertical direction. The heat source 2 a is located between the upper surface of the induction wall 37 and the annular wall 34, and the heat source 2 b is located between the lower surface of the induction wall 37 and the annular wall 34. The heat sources 2 a and 2 b extend in the lateral direction along the guide wall 37. Therefore, heat is continuously supplied from the heat sources 2 a and 2 b to the steam in the buffer chamber 6 while moving in the steam passage formed by the guide wall 37 and the annular wall 34.

  As shown in FIG. 5, the end of the guide wall 37 on the outlet 31 side is bent downward and is in contact with the inner surface of the lower wall of the annular wall 34. A reservoir 3d is formed between a portion bent downward of the guide wall 37 and the annular wall 34. A convex portion 37 a protruding upward is provided at the end of the guide wall 37 opposite to the outlet 31. It is difficult for the water accumulated on the upper surface of the guide wall 37 to move over the convex portion 37a and to flow down to the water reservoir 3d.

  A second temperature sensor 8 is provided in the reservoir 3d. The temperature sensor 8 includes an element (thermistor) whose electric resistance value changes according to a temperature change, and monitors the water level in the water reservoir 3d based on the temperature change. When a predetermined amount of water is stored in the reservoir 3d, the temperature sensor 8 is turned on, and overflow of the buffer chamber 6 is detected. When the temperature sensor 8 is turned on, the control unit controls the driving of the heater 2 and heats the heater 2, for example.

  A vertical cross-sectional area between the guide wall 37 and the annular wall 34 (area of a cross section perpendicular to the flow direction of steam) is larger than the opening area of the outlet 31. Therefore, the pressure of the steam led out from the outlet 31 to the buffer chamber 6 is reduced, and bumping is less likely to occur in the reservoir 3d.

  In the buffer chamber 6, the lower side of the guide wall 37 faces the air outlet 26. The steam discharged from the outlet 31 in the thickness direction of the plate portion 3a moves to the left in FIG. 3 on the upper side of the guide wall 37, wraps around the convex portion 37a and the lower side of the guide wall 37 to the right side. It moves and is blown out from the blower outlet 26 to the heating chamber 11.

  The longitudinal cross-sectional area between the guide wall 37 and the annular wall 34 is larger than the total opening area of the plurality of outlets 26, and the flow velocity of the steam rises in the vicinity of the outlets 26. Therefore, the steam flows smoothly in the buffer chamber 6 and the pressure increase in the buffer chamber 6 is suppressed.

  Compared with the case where the outlet 31 and the outlet 26 are opposed to each other in the outlet direction, the flow path of the steam from the outlet 31 to the outlet 26 becomes longer, and the steam passes through the buffer chamber 6. The steam is heated by the heat of the heating chamber 11. Further, the steam is prevented from moving linearly from the outlet 31 to the outlet 26.

  As shown in FIG. 7, on the other side of the plate portion 3 a below the guide wall 37, a horizontally elongated groove-shaped recess 3 e that is deeper than the second recess 33 is formed. For this reason, the volume of the buffer chamber 6 is increased, and a larger amount of steam is stored in the buffer chamber 6 to improve the heating efficiency.

  Between the left and right of the guide wall 37 in the buffer chamber 6 and between the lower wall portion of the guide wall 37 and the annular wall 34, a cylindrical heat radiating portion 3f protruding from the other surface of the plate portion 3a is integrated with the plate portion 3a. Is provided. By providing the heat radiating part 3f, the contact area of the steam in the water heater 3 increases.

  As shown in FIGS. 3 and 7, an annular sealing member 38 that is in contact with the right side surface portion 11 a of the heating chamber 11 is fitted and held at the tip of the annular wall 34. The sealing member 38 protrudes inside the annular wall 34 and includes a frame-shaped close contact portion 38 a along the annular wall 34. The thickness dimension at the base end portion of the contact portion 38a is shorter than the thickness dimension at the protruding end portion of the contact portion 38a. Therefore, the contact portion 38a is easily bent with the base end portion as a fulcrum, and is pressed against the heating chamber 11 side by the vapor pressure.

  A sealing member 39 that contacts the right side surface portion 11a is fitted and held at the tip of the guide wall 37. The sealing member 39 prevents the steam from flowing between the guide wall 37 and the right side surface portion 11a, and prevents the steam from moving linearly from the outlet 31 to the outlet 26. The heat of the chamber 11 is sufficiently conducted to the vapor stored in the buffer chamber 6.

  When attaching the steam generator A to the right side surface portion 11a of the heating chamber 11, as shown in FIGS. 4 and 7, the attachment shafts 27, 27 are fitted into the fitting holes 35a, 35a of the steam generator A, and the attachment shaft 27, The nuts 28 and 28 are screwed onto the tip of 27. The steam generator A is easily positioned by the mounting shafts 27 and 27, and is attached to the right side surface portion 11a so that the position with respect to the air outlet 26 is appropriate. Further, the sealing members 38 and 39 are brought into contact with the right side surface portion 11a, and the buffer chamber 6 is closed at the right side surface portion 11a to be in a closed chamber state. Further, the heat in the heating chamber 11 is conducted into the buffer chamber 6 through the right side surface portion 11a. That is, the steam in the buffer chamber 6 is reheated by the heat in the heating chamber 11. Further, the buffer chamber 6 is sandwiched between the heating chamber 11 and the evaporation chamber 5, and the temperature in the buffer chamber 6 is kept high.

  The air outlets 26 are arranged in two upper and lower rows so as to correspond to the upper and lower trays 60, 60. However, when three or more trays 60 are accommodated in the heating chamber 11, the air outlet 26 is made to correspond to the tray 60. The air outlets 26 are also arranged in three or more rows.

  In the heating cooker according to the first embodiment, the buffer chamber 6 is adjacent to the heating chamber 11, and the heat of the heating chamber 11 is conducted to the buffer chamber 6. Therefore, the steam generated in the evaporation chamber 5 is reheated in the buffer chamber 6, so that the steam can be safely heated without excessively increasing the temperature of the heater 2, and for reheating the steam. Power consumption can be suppressed. Further, since the steam is blown out to the heating chamber 11 via the buffer chamber 6, the steam pressure can be appropriately adjusted by changing the design of the buffer chamber 6.

  Further, the buffer chamber 6 is adjacent to the evaporation chamber 5, and the heat of the evaporation chamber 5 is conducted to the buffer chamber 6. Therefore, heat for generating steam is used for reheating the steam, and energy efficiency is improved.

  Further, since the buffer chamber 6 is located between the evaporation chamber 5 and the heating chamber 11, the heat of the evaporation chamber 5 and the heating chamber 11 is conducted to the buffer chamber. Therefore, the heat of both chambers is used for steam reheating, and the energy efficiency related to steam reheating can be dramatically improved. Moreover, the temperature in the buffer chamber 6 can be maintained at a high temperature by being sandwiched between the two chambers.

  Moreover, the heater 2 is arrange | positioned between the buffer chamber 6 and the evaporation chamber 5, The heat of the heater 2 is supplied to both chambers, and the thermal efficiency for evaporation and reheating of a vapor | steam can be improved. Moreover, size reduction of the steam generation container A can be promoted.

  In the heating cooker according to the first embodiment, the right side surface portion 11a of the heating chamber 11 also serves as the wall portion of the buffer chamber 6, but the opposing wall portion of the buffer chamber 6 that is in contact with the right side surface portion 11a. It may be provided. In this case, the heat in the heating chamber 11 is conducted through the right side surface portion 11a and the opposing wall portion, and the vapor in the buffer chamber 6 is heated.

  The guide wall 37 extends in the horizontal direction in the buffer chamber 6, but may extend in the vertical direction from the top surface or the bottom surface of the buffer chamber 6.

(Embodiment 2)
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a cooking device according to a second embodiment. FIG. 9 is a schematic front view of a steam generator in the heating cooker according to the second embodiment.

  In the steam generator A, two guide walls 37c and 37d that are spaced apart from each other and are opposed to each other are arranged so that the steam in the buffer chamber 6 meanders and flows.

  The upper guide wall 37c is inclined with the outlet 31 side as a lower side, and extends from one side of the buffer chamber 6 to the other side. A space is provided between the extending end of the guide wall 37c and the other side of the buffer chamber 6.

  The lower guide wall 37d is inclined with the outlet 31 side as the upper side, and extends from the other side of the buffer chamber 6 toward one side. A space is provided between the extending end of the guide wall 37d and one side of the buffer chamber 6. Further, the lower guide wall 37d is positioned above the air outlet 26.

  A reservoir 3d is formed on the guide port 37c side of the guide wall 37c and above the guide wall 37c. Further, a reservoir 3d is formed on the side opposite to the outlet 31 of the guide wall 37d and above the guide wall 37d.

  Of the configuration of the heating cooker according to the second embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

(Embodiment 3)
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a cooking device according to a third embodiment. FIG. 10 is a schematic front view of a steam generator in the heating cooker according to the third embodiment.
In the steam generator A, the steam in the buffer chamber 6 flows in a spiral shape, and a guide wall 37d is arranged so as to reach from the outlet 31 to the outlet 26.

  The guide wall 37d has a bowl shape, a base portion 6a that is long in the lateral direction from one side of the buffer chamber 6, an intermediate portion 6b that extends downward from the distal end portion of the base portion, and the base portion from the lower end portion of the intermediate portion 6b. It has the front part 6c extended toward one side of the buffer chamber 6 so as to oppose 6a. The base 6 a is located below the outlet 31. The blower outlet 26 is located between the base part 6a and the front part 6c. Further, a water reservoir 3d is formed on the lower surface in the buffer chamber 6.

  The steam in the buffer chamber 6 flows spirally from the outlet 31 to the outlet 26, and the steam moves in the buffer chamber over a long period of time, so that the heat in the heating chamber 11 is reliably conducted to the steam.

  Among the configurations of the heating cooker according to the third embodiment, the same reference numerals are given to the same configurations as those in the first or second embodiment, and detailed description thereof is omitted.

(Embodiment 4)
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a cooking device according to a fourth embodiment. FIG. 11 is a perspective view schematically showing a steam generator in a heating cooker. In FIG. 11, the sealing members 38 and 39 are not shown.

  The steam generator A includes a guide wall 37e that is inclined with the outlet 31 side facing downward. A portion of the guide wall 37 e on the outlet 31 side is bent downward and is in contact with the lower surface of the buffer chamber 6. A water reservoir 3d is formed between the outlet wall 31 side portion of the guide wall 37e and the annular wall 34. A thermistor for detecting the water level in the water reservoir 3d is provided below the outlet 31 of the water heater 3.

  In the heating cooker according to the fourth embodiment, even if water adheres to the upper portion of the guide wall 37, the attached water moves in a direction away from the outlet 26, so that water blows out from the outlet 26. This can be suppressed.

  Among the configurations of the heating cooker according to the fourth embodiment, the same reference numerals are given to the same configurations as those of the first to third embodiments, and detailed description thereof is omitted.

(Embodiment 5)
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a cooking device according to a fifth embodiment. 12 is a front view schematically showing a steam generator in the heating cooker, and FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG.

  The steam generator A includes an evaporation chamber 5 and a buffer chamber 6 that are arranged vertically. The steam generator A has a container whose one side of the horizontally long rectangle is opened, and the opened one side of the container faces the right side part 11 a of the heating chamber 11. A horizontally long dividing wall 3h that divides the internal space vertically is provided inside the container. An evaporation chamber 5 is formed above the dividing wall 3h, and a buffer chamber 6 is formed below the dividing wall 3h.

  A water supply pipe 16 is connected to the evaporation chamber 5. The evaporating chamber 5 is provided with a lead-out port 31 communicating with the buffer chamber 6 so as to be separated from the water supply pipe 16. The buffer chamber 6 is provided with a guide wall 37f protruding from the wall portion of the buffer chamber 6 facing the right side surface portion 11a to the right side surface portion 11a. The guide wall 37f extends in the lateral direction from the outlet 31 side and is inclined with the outlet 31 side as the lower side. A recess 3e is provided in the wall of the buffer chamber 6 facing the right side surface 11a.

  A horizontally long heat source 2 a is embedded in the dividing wall 3 h, and a horizontally long heat source 2 b is embedded in the lower portion of the buffer chamber 6. The air outlet 26 is adjacent to the buffer chamber 6, and the heat source 2 b is located in the vicinity of the air outlet 26. The heat of the heat source 2 a is conducted to the evaporation chamber 5 and the buffer chamber 6, and the heat of the heat source 2 b is conducted to the buffer chamber 6. Further, the heat in the heating chamber 11 is conducted to the evaporation chamber 5 and the buffer chamber 6.

  In the heating cooker according to Embodiment 5, the evaporation chamber 5 is adjacent to the heating chamber 11, and the heat of the heating chamber 11 is conducted to the evaporation chamber 5. Therefore, the heat in the heating chamber 11 is used for water evaporation, the thermal efficiency for evaporation is improved, and the burden on the heater 2 that supplies heat to the evaporation chamber 5 is reduced.

  In the heating cooker according to the fifth embodiment, the evaporation chamber 5 is on the upper side and the buffer chamber 6 is on the lower side, but the positions of the evaporation chamber 5 and the buffer chamber 6 may be upside down.

  Among the configurations of the heating cooker according to the fifth embodiment, the same reference numerals are given to the same configurations as those of the first to fourth embodiments, and detailed description thereof is omitted.

(Embodiment 6)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a cooking device according to a sixth embodiment. 14 is a front view schematically showing a steam generator in the cooking device, and FIG. 15 is a cross-sectional view taken along the line XV-XV in FIG.

  The steam generator A includes an evaporation chamber 5 and a buffer chamber 6 arranged side by side. The steam generator A has a container whose one side of the horizontally long rectangle is opened, and the opened one side of the container faces the right side part 11 a of the heating chamber 11. Inside the container, there is provided a dividing wall 3i extending vertically to divide the internal space into left and right. As shown in FIG. 14, the evaporation chamber 5 is formed on the right side of the dividing wall 3i, and the buffer chamber 6 is formed on the left side of the dividing wall 3i.

  A water supply pipe 16 is connected to the upper side of the wall facing the right side surface portion 11 a in the evaporation chamber 5. An outlet 31 for communicating the evaporation chamber 5 and the buffer chamber 6 is provided on the upper side of the dividing wall 3 i so as to be separated from the water supply pipe 16. The buffer chamber 6 is provided with a guide wall 37g protruding from the wall portion of the buffer chamber 6 facing the right side surface portion 11a toward the right side surface portion 11a. The guide wall 37g extends from the right side to the left side, and is inclined with the right side as a lower side. A recess 3e is provided in the wall of the buffer chamber 6 facing the right side surface 11a.

  A U-shaped heater 2 is embedded in the wall portion of the steam generator A facing the right side surface portion 11a. The heater 2 includes heat sources 2a and 2b extending in the lateral direction, and the heat sources 2a and 2b are arranged vertically. In the evaporation chamber 5, the water supplied from the water supply pipe 16 travels through the wall, and heat is supplied from the heat sources 2a and 2b. In the buffer chamber 6, heat is supplied from the heat sources 2 a and 2 b to the steam led out from the outlet 31. The heat of each heat source 2a, 2b is used for water evaporation and steam reheating.

  Further, the heat in the heating chamber 11 is conducted to the evaporation chamber 5 and the buffer chamber 6. Therefore, the heat in the heating chamber 11 is used for water evaporation, the thermal efficiency for evaporation is improved, and the burden on the heater 2 that supplies heat to the evaporation chamber 5 is reduced.

  In the cooking device according to the sixth embodiment, the evaporation chamber 5 is on the right side and the buffer chamber 6 is on the left side, but the positions of the evaporation chamber 5 and the buffer chamber 6 may be reversed.

  Among the configurations of the heating cooker according to the sixth embodiment, the same reference numerals are given to the same configurations as those of the first to fifth embodiments, and detailed description thereof is omitted.

  In the cooking device according to the first to sixth embodiments, the evaporation chamber 5 and the buffer chamber 6 are adjacent to each other. However, in order to heat the steam by the heat of the heating chamber 11, it is not always necessary to be adjacent. Absent. For example, the evaporation chamber 5 may be disposed away from the buffer chamber 6, and the evaporation chamber 5 and the buffer chamber 6 may be communicated with each other through a ventilation path such as a tube. Even in this case, the steam led out from the evaporation chamber 5 to the buffer chamber 6 through the ventilation path is safely and efficiently heated by the heat conducted from the heating chamber 11 adjacent to the buffer chamber 6.

  The embodiment described above is an exemplification of the present invention, and the present invention can be implemented in variously modified forms within the scope determined based on the description of the claims.

  (Additional remarks) The following matters are further disclosed regarding the embodiment of the present invention described above.

  The heating cooker according to the present invention includes a heating chamber 11 that accommodates and heats food, a steam generator A that supplies steam to the heating chamber 11, and a water supply means 16 that supplies water to the steam generator A. In the heating cooker, the steam generator A includes an evaporation heater 2a for evaporating the water supplied from the water supply means 16, and the evaporation heater 2a through a steam flow path in the steam generator A. And a heater 2b for heating the steam, the area of the cross section perpendicular to the direction of steam flow in the inner space of the steam generator A evaporates on the heater 2b side. It is narrower than the heater 2a side.

  In the cooking device according to the present invention, the steam generator A includes an evaporation chamber 5 in which heat from the evaporation heater 2a is conducted and the water supplied from the water supply means 16 is evaporated. A steam passage for storing and flowing the generated steam, and steam is blown out from the steam passage to the heating chamber 11, the steam passage and the evaporation chamber 5 are adjacent to each other, and the evaporation chamber 5, a single outlet 31 for leading the steam generated in 5 to the steam passage is provided above the evaporation chamber 5, and the steam passage is bent a plurality of times.

DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Heater 2a, 2b Heat source 3 Water heating body 3a Plate part (wall part)
3e Concave portion 5 Evaporating chamber 6 Buffer chamber 11 Heating chamber 11a Right side surface (wall body)
16 Water supply pipe (water supply means)
26 Outlet 31 Outlet 34 Annular Wall 37 Guide Wall 60 Tray (Tray)
A Steam generating container

Claims (2)

In a heating cooker comprising a heating chamber for containing and heating food, a steam generator for supplying steam to the heating chamber, and a water supply means for supplying water to the steam generator,
The steam generator includes a plurality of heaters,
At least one of the plurality of heaters is an evaporation heater closest to a position supplied from the water supply means,
At least another one of the plurality of heaters is a heater for heating the steam, which is located downstream of the evaporation heater in the steam flow path in the steam generator,
The steam generator has an inner surface made of a metal material,
The inner surface is provided with a wall protruding from the inner surface,
The wall heating cooker, characterized in that position and the evaporation heater the heater is disposed in contact across both positions arranged. The steam generator
The cooking device according to claim 1, wherein the evaporating heater and the heating heater are arranged substantially parallel to a vertical direction.

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