JP2007032890A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tray for a heating cooker allowing both upper and lower sides of a heated object to be heated without unevenness in a short time without using an auxiliary implement such as a gridiron. <P>SOLUTION: When the tray 4 is locked to locking parts 3 provided at both right and left side faces of a heating chamber 20 of the heating cooker, a through hole 4f formed in each side wall part 4b of the tray, faces each of steam blowoff ports 22 provided on both right and left sides of the heating chamber 20. A part of superheated steam supplied from the steam blowoff port 22 is supplied to the lower side of the tray 4 through the through hole 4f of the tray, and the other part of the superheated steam is supplied to the upper side of the tray 4. Both upper and lower sides of the heated object placed on the tray 4 are heated with superheated steam supplied to both upper and lower sides of the tray 4 without using the tall-skirted gridiron. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heating cooker tray that is disposed in a heating chamber of a heating cooker and supports an object to be heated.

  2. Description of the Related Art Conventionally, as a cooking device tray, there is a turntable that is provided on a bottom plate of a heating chamber, on which an object to be heated is placed, and that rotates about a central rotation axis in a plan view (for example, JP-A-2- 306030 gazette: see Patent Document 1). A heating cooker including this turntable includes an upper heater disposed on the ceiling of the heating chamber and a lower heater disposed on the back side of the bottom plate of the heating chamber, and rotates an object to be heated on the turntable. Thus, uneven heating of the object to be heated is prevented in plan view.

  However, since the lower heater is separated from the bottom plate in the conventional turntable as the above-mentioned cooker tray, it is difficult to transfer the heat from the lower heater to the object to be heated. There is a problem that uneven heating occurs.

  Conventionally, as a tray for a heating cooker that can solve such a problem, there is a tray used for a heating cooker that heats an object to be heated with steam (see, for example, Japanese Patent Application Laid-Open No. 2003-302051: Patent Document 2). The tray for the heating cooker is a turntable provided on the bottom plate of the heating chamber, is equipped with a waist-high grill net, and an object to be heated is arranged on the grill net. The object to be heated is disposed between the steam outlets provided at the upper and lower portions of the heating chamber by the waist-high grill net. Thereby, the steam from the steam outlet is sent to the upper side and the lower side of the object to be heated, so that uneven heating between the upper side and the lower side of the object to be heated is prevented.

However, the tray for the heating cooker has a problem that handling is troublesome because it is necessary to mount a grill net before cooking the object to be heated. In addition, since it is necessary to clean the grill net after cooking, there is a problem that it takes time and effort for maintenance. In addition, when cooking is performed by heating the object to be heated only from the upper side, the object to be heated is directly disposed on the turntable, so that the grill net is not necessary and is disposed outside the heating cooker. Therefore, it is necessary to secure an arrangement space for the grill net outside the heating cooker, and there is a problem that the grill net arranged outside the heating cooker gets in the way and gives a complicated impression.
JP-A-2-306030 JP 2003-302051 A

  Then, the subject of this invention is providing the tray for heating cookers which can heat the upper and lower sides of a to-be-heated material uniformly, with little effort, without using auxiliary tools, such as a grill net.

In order to solve the above problems, the tray for a heating cooker of the present invention is
A tray for a heating cooker that is locked in a heating chamber of a heating cooker and supports an object to be heated that is heated by a heating fluid supplied into the heating chamber,
A substantially rectangular bottom on which the object to be heated is placed;
A side wall portion that is continuous with the two opposite sides of the bottom portion and faces the side of the heating fluid outlet formed on the inner surface of the heating chamber;
A first through hole formed in the side wall portion and flowing between a front surface side and a back surface side of the bottom portion is provided with a part of the heating fluid supplied from the outlet to the heating chamber. .

  According to the said structure, the said cooker tray is latched in the heating chamber of a heating cooker, and a to-be-heated material is mounted in the surface of the said bottom part. When the heating fluid is supplied from the outlet formed on the inner surface of the heating chamber, a part of the heating fluid flows through the first through hole formed in the side wall portion facing the outlet. And flows to one of the front side and the back side of the bottom. The other part of the heating fluid does not flow through the first through hole, but flows to the other of the surface side and the back surface side of the bottom part and the side where the air outlet is formed. The upper side of the object to be heated placed on the bottom is heated by the heating fluid that has flowed to the surface of the bottom. Further, the lower side of the object to be heated is heated by the heating fluid that has flowed to the back side of the bottom. As described above, the heating fluid can be supplied to both the front and back surfaces of the bottom portion on which the object to be heated is placed without using the conventional waist-high grill net, and the upper and lower sides of the object to be heated can be heated uniformly. Therefore, the trouble of arranging the grill net before cooking and the trouble of cleaning the grill net after cooking can be saved. Moreover, it is not necessary to secure a space for disposing the unused grill net around the heating cooker, and the unused grill net does not complicate the periphery of the heating cooker. In addition, what is necessary is just to arrange | position the to-be-heated object on this heating cooker tray, arrange | positioning the said cooker tray on the bottom face of a heating chamber, when heating a to-be-heated object only from the upper side.

  Moreover, since the heating fluid from one blower outlet can be flowed to the up-and-down both sides of a tray by using the tray for heating cookers which has the said 1st through-hole, since the said blower outlet should just provide one, The structure of the cooking device can be simplified.

  In addition, the said heating fluid is not restricted to gas and a liquid, but means the gas-liquid mixed fluid like a vapor | steam. The point is that the object to be heated can be heated and has fluidity.

  The tray for a heating cooker according to an embodiment is provided in the vicinity of at least one side of two sides that are substantially orthogonal to the side where the side wall portion of the bottom portion is continuous, and the first through hole circulates the heating fluid. The 2nd through-hole which distribute | circulates a heating fluid in the reverse direction is provided.

  According to the embodiment, one heating fluid of the bottom surface side and the back surface side of the cooker tray flows through the second through hole, and the other of the bottom surface side and the back surface side. Flowing into. Therefore, since the heating fluid can be efficiently circulated between the upper side and the lower side of the heating cooker tray to make the temperature of the heating fluid uniform, the object to be heated arranged on the heating cooker tray, Heating unevenness between the upper side and the lower side can be effectively prevented.

  Moreover, when the suction port of the heating fluid is formed on the side where the blower outlet is formed, one heating fluid of the surface side and the back surface side of the bottom portion is used as the other of the surface side and the back surface side of the bottom portion. It can return to and it can discharge | emit from the said suction port.

  As described above, the tray for the heating cooker according to the present invention is a part of the heating fluid from the blower outlet formed on the inner surface of the heating chamber. Since the other part can be flowed to the other of the front surface side and the back surface side of the bottom portion, the upper side of the object to be heated is heated by the heating fluid on the front surface side of the bottom portion, and the bottom portion The lower side of the object to be heated can be heated by the heating fluid on the back side. Therefore, the upper and lower sides of the object to be heated can be heated evenly without using a conventional waist-high grill net.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is an external perspective view of a cooking device in which the cooking device tray of the present embodiment is used. The heating cooker 1 is provided with an operation panel 11 at the upper part of the front surface of the rectangular parallelepiped cabinet 10, and a door 12 that rotates around the lower end side is provided below the operation panel 11 on the front surface of the cabinet 10. It is provided and roughly configured. A handle 13 is provided at the top of the door 12, and a heat-resistant glass window 14 is fitted into the door 12.

  FIG. 2 is an external perspective view of the cooking device 1 with the door 12 opened. A rectangular parallelepiped heating chamber 20 is provided in the cabinet 10. The heating chamber 20 includes an opening 20a that is opened and closed by the door 12, a back side surface 20b that opposes the opening 20a, a left side surface 20c and a right side surface that are continuous with each other on the left and right sides of the back side surface 20b, and the left side surface. A top surface extending between the upper end edge of 20c and the upper end edge of the right side surface, and a bottom surface 20d extending between the lower end edge of the left side surface 20c and the lower end edge of the right side surface. The left and right side surfaces 20c, the bottom surface 20d, and the top surface of the heating chamber 20 are made of stainless steel plates. The door 12 that opens and closes the opening 20a is formed of a stainless steel plate on the side facing the heating chamber 20. A heat insulating material (not shown) is placed around the heating chamber 20 and inside the door 12 to insulate the inside of the heating chamber 20 from the outside.

  Both the left side surface and the right side surface of the heating chamber 20 are provided with a substantially rectangular steam outlet 22 extending substantially horizontally at the approximate center in the height direction (only one is visible in FIG. 2). ing). Further, on both the left side surface 20 c and the right side surface of the heating chamber 20, a locking portion 3 extending substantially parallel to the steam outlet 22 is provided in the vicinity below the steam outlet 22. A tray 4 that receives an object to be heated is locked to the locking portion 3.

  3A is a plan view showing the tray 4 locked to the locking portion 3, and FIG. 3B is a cross-sectional view of the tray 4 taken along line AA of FIG. 3A.

  The tray 4 has a substantially rectangular shape having an outer dimension slightly smaller than the inner dimension of the heating chamber 20 in plan view, and has rounded corners. The tray 4 is connected in order from the outer peripheral edge toward the inside, the edge portion 4a that is wound (curled), the side wall portion 4b that is inclined inward and upward in FIG. 3B, and the upper end of the side wall portion 4b. A flat surface portion 4c, an inner wall portion 4d inclined from the flat surface portion 4c inward and downward in FIG. 3B, and a bottom portion 4e extending between the edge portion 4a and the flat surface portion 4c in the front and back surfaces direction. . In the vicinity of the four sides of the tray 4, elongated through holes 4f parallel to the respective sides are formed. Specifically, in the cross-sectional view of FIG. 3B, an elongated through hole extending in the vicinity of the lower end of the side wall 4b (near the outer periphery of the side wall 4b in the plan view of FIG. 3A) in parallel with the longitudinal direction of the side wall 4b. 4f is formed. Four through holes 4f are provided for each side. The bottom 4e is formed with an annular inclined surface 4g slightly inclined upward as it goes inward, and a circular flat surface 4h positioned inside the inclined surface 4g.

  FIG. 4 is an enlarged cross-sectional view showing the vicinity of a portion where the tray 4 is locked to the locking portion 3 of the heating chamber. As shown in FIG. 4, the locking portion 3 is provided so as to protrude inward from the left and right side surfaces of the heating chamber, and has an upper end surface extending in a substantially horizontal direction and from the tip of the upper end surface to the left and right side surfaces. And an inclined surface inclined toward the surface. The tray edge 4 a comes into contact with the upper end surface of the locking portion 3, and the tray 4 is locked to the locking portion 3. As shown in FIG. 4, when the tray 4 is locked to the locking portion 3, the through hole 4 f formed in the side wall portion 4 b of the tray is opposed to the vicinity of the lower end of the steam outlet 22. The through hole 4f facing the vicinity of the lower end of the steam outlet 22 corresponds to the first through hole of the present invention. When the tray 4 is locked to the locking portion 3, the through hole 4f located on the opening 20a side and the back side surface 20b side of the heating chamber corresponds to the second through hole of the present invention.

  FIG. 5 is a schematic configuration diagram showing a basic configuration of the heating cooker 1. As shown in FIG. 5, the heating cooker 1 includes a heating chamber 20, a water tank 30 that stores water for steam, and a steam generator 40 that generates steam by evaporating water supplied from the water tank 30. A steam temperature raising device 50 that heats the steam from the steam generating device 40, and a control device 80 that controls the operation of the steam generating device 40, the steam temperature raising device 50, and the like.

  An object to be heated 90 is placed on the bottom 4 e of the tray 4 installed in the heating chamber 20.

  The connecting portion 30 a provided on the lower side of the water tank 30 can be connected to a funnel-shaped receiving port 31 a provided at one end of the first water supply pipe 31. The suction side of the pump 35 is connected to the end of the second water supply pipe 32 that branches from the first water supply pipe 31 and extends upward, and one end of the third water supply pipe 33 is connected to the discharge side of the pump 35. ing. Further, a water tank water level sensor 36 is disposed at the upper end of a water level sensor pipe 38 that branches off from the first water supply pipe 31 and extends upward. Furthermore, the upper end of an air release pipe 37 branched from the first water supply pipe 31 and extending upward is connected to an exhaust duct 65 described later.

  The third water supply pipe 33 has an L shape that is bent substantially horizontally from a vertically disposed portion, and an auxiliary tank 39 is connected to the other end of the third water supply pipe 33. Furthermore, one end of the fourth water supply pipe 34 is connected to the lower end of the auxiliary tank 39, and the lower end of the steam generator 40 is connected to the other end of the fourth water supply pipe 34. Further, one end of the drain valve 70 is connected to a lower side than the connection point of the fourth water supply pipe 34 in the steam generator 40. One end of a drain pipe 71 is connected to the other end of the drain valve 70, and a drain tank 72 is connected to the other end of the drain pipe 71. Note that the upper portion of the auxiliary tank 39 is communicated with the atmosphere via the air release pipe 37 and the exhaust duct 65.

  When the water tank 30 is connected to the receiving port 31 a of the first water supply pipe 31, the water in the water tank 30 rises into the open air pipe 37 until the water level becomes the same as that of the water tank 30. At this time, the water level sensor pipe 38 connected to the water tank water level sensor 36 is sealed at the tip, so that the water level does not rise. However, according to the water level of the water tank 30, the water level sensor pipe 38 has a sealed space. The pressure rises from atmospheric pressure. By detecting this pressure change with a pressure detection element (not shown) in the water level sensor 36 for water tank, the water level in the water tank 30 is detected. In the water level measurement when the pump 35 is stationary, the air release pipe 37 is not necessary, but the suction pressure of the pump 35 directly acts on the pressure detection element, and the accuracy of the water level detection of the water tank 30 decreases. In order to prevent this, an air release pipe 37 having an open end is provided.

  The steam generator 40 includes a pot 41 having the other end of the fourth water supply pipe 34 connected to the lower side, a steam generating heater 42 disposed near the bottom surface of the pot 41, and steam generation in the pot 41. A water level sensor 43 disposed in the vicinity of the upper side of the heater 42 and a steam suction ejector 44 attached to the upper side of the pot 41 are provided. A fan casing 26 is disposed outside the suction port 25 provided in the upper side of the heating chamber 20. Then, the steam in the heating chamber 20 is sucked from the suction port 25 by the blower fan 28 installed in the fan casing 26, and the steam suction ejector of the steam generator 40 is passed through the first pipe 61 and the second pipe 62. 44 is sent to the inlet side. One end of the first pipe 61 is connected to the fan casing 26. The second pipe 62 has one end connected to the other end of the first pipe 61 and the other end connected to the inlet side of the inner nozzle 45 of the vapor suction ejector 44.

  The steam suction ejector 44 includes an outer nozzle 46 that wraps the outside of the inner nozzle 45, and the discharge side of the inner nozzle 45 communicates with the internal space of the pot 41. One end of the third pipe 63 is connected to the discharge side of the outer nozzle 46 of the steam suction ejector 44, and the steam temperature raising device 50 is connected to the other end of the third pipe 63.

  The fan casing 26, the first pipe 61, the second pipe 62, the steam suction ejector 44, the third pipe 63, and the steam temperature raising device 50 form an external circulation path 60. One end of a discharge passage 64 is connected to the discharge port 27 provided on the lower side of the side surface of the heating chamber 20, and one end of an exhaust duct 65 is connected to the other end of the discharge passage 64. Further, an exhaust port 66 is provided at the other end of the exhaust duct 65. On the exhaust duct 65 side of the vapor discharge passage 64, a radiator 69 is externally fitted. An exhaust duct 65 is connected to a connection portion between the first pipe 61 and the second pipe 62 forming the external circulation path 60 via an exhaust passage 67. Further, a damper 68 that opens and closes the exhaust passage 67 is disposed on the connection side of the exhaust passage 67 to the first and second pipes 61 and 62.

  The steam temperature raising device 50 includes a dish-shaped case 51 disposed on the ceiling side and substantially in the center of the heating chamber 20 with the opening facing down, and a dish-shaped case 51 disposed in the dish-shaped case 51. A first steam heater 52 and a second steam heater 53 disposed in the dish-shaped case 51 are provided. The bottom surface of the dish-shaped case 51 is formed by a metal ceiling panel 54 provided on the ceiling surface of the heating chamber 20. A plurality of ceiling steam outlets 55 are formed in the ceiling panel 54. Here, the upper and lower surfaces of the ceiling panel 54 are finished in a dark color by painting or the like. Note that the ceiling panel 54 may be formed of a metal material that changes to a dark color by repeated use or a dark-colored ceramic molded product.

  Further, the steam temperature raising device 50 is connected to the upper portion of the heating chamber 20 at one end of a steam supply passage 23 (only one is visible in FIG. 5) extending toward the left and right sides. The steam supply passage 23 extends downward along the left and right side surfaces of the heating chamber 20, and is provided at the other end at a substantially center in the height direction of the left and right side surfaces of the heating chamber 20. Connected to the steam outlet 22.

  Next, the control system of the heating cooker 1 will be described.

  The control device 80 is composed of a microcomputer, an input / output circuit, and the like. As shown in FIG. 6, the blower fan 28, the first steam heater 52, the second steam heater 53, the damper 68, the drain valve, as shown in FIG. 70, steam generating heater 42, operation panel 11, water tank water level sensor 36, water level sensor 43, temperature sensor 81 for detecting the temperature in the heating chamber 20, and humidity in the heating chamber 20. The humidity sensor 82 and the pump 35 are connected. Based on the detection signals from the water tank water level sensor 36, the water level sensor 43, the temperature sensor 81, and the humidity sensor 82, the blower fan 28, the first steam heater 52, the second steam heater 53, the damper 68, the waste water. The valve 70, the steam generating heater 42, the operation panel 11 and the pump 35 are controlled according to a predetermined program.

  Hereinafter, operation | movement of the heating cooker 1 which has the said structure is demonstrated. When a power switch (not shown) of the operation panel 11 is pressed, the power is turned on, and the cooking operation is started by operating the operation panel 11. Then, first, the control device 80 closes the drain valve 70 and starts the operation of the pump 35 in a state where the exhaust passage 67 is closed by the damper 68. Then, water is supplied from the water tank 30 into the pot 41 of the steam generator 40 via the first to fourth water supply pipes 31 to 34 by the pump 35. Thereafter, when the water level sensor 43 detects that the water level in the pot 41 has reached a predetermined water level, the pump 35 is stopped to stop water supply.

  Next, the steam generating heater 42 is energized, and a predetermined amount of water accumulated in the pot 41 is heated by the steam generating heater 42.

  When the steam generating heater 42 is energized or when the temperature of the water in the pot 41 reaches a predetermined temperature, the blower fan 28 is turned on, and the first and second steam heaters of the steam heating device 50 are turned on. Energize 52 and 53. Then, the blower fan 28 sucks air (including steam) in the heating chamber 20 from the suction port 25 and sends out air (including steam) to the external circulation path 60. In that case, since the centrifugal fan is used for the ventilation fan 28, a high pressure can be generated compared with the case where a propeller fan is used. Furthermore, by rotating the centrifugal fan used for the blower fan 28 at a high speed with a DC motor, the flow velocity of the circulating airflow can be extremely increased.

  Next, when the water in the pot 41 of the steam generator 40 boils, saturated steam is generated, and the generated saturated steam joins the circulating airflow passing through the external circulation path 60 at the location of the steam suction ejector 44. Then, the steam discharged from the steam suction ejector 44 flows into the steam temperature raising device 50 through the third pipe 63 at a high speed.

  And the steam which flowed into the said steam temperature rising apparatus 50 is heated by the 1st and 2nd steam heater 52,53, and becomes a superheated steam of about 300 degreeC (it changes with cooking contents). A part of this superheated steam is ejected downward from the plurality of ceiling steam outlets 55 provided in the lower ceiling panel 54 in the heating chamber 20. Further, other portions of the superheated steam are ejected from the steam outlets 22 on both side surfaces of the heating chamber 20 through the steam supply passages 23 provided on the left and right sides of the steam temperature raising device 50.

  As shown by the arrows in FIG. 4, the superheated steam ejected from the left and right side surfaces of the heating chamber 20 is partially transferred from the through hole 4 f serving as the first through hole facing the steam outlet 22 of the tray 4 to the tray 4. And the other part flows to the upper side of the tray 4. Thus, the superheated steam ejected from the steam outlets 22 on both sides of the heating chamber 20 is supplied to the upper side and the lower side of the tray 4. When a sufficient amount of steam is supplied to the lower side of the tray 4, the through holes 4 f are formed as second through holes provided on the front and back edges of the tray 4 when viewed from the opening 20 a side of the heating chamber. Thus, a flow from the lower side to the upper side of the tray 4 is generated.

  Thus, on the upper side of the tray 4 in the heating chamber 20, a flow of steam that blows down at the center and rises at the outside is generated. In addition, on the lower side of the tray 4 in the heating chamber 20, steam flows from the left and right to the front and rear. Then, the steam on the upper side of the tray 4 is sequentially sucked into the suction port 25 and repeats circulation such that it returns to the heating chamber 20 through the external circulation path 60 again.

  In this manner, the flow of superheated steam is formed on both the upper side and the lower side of the tray 4 in the heating chamber 20, thereby maintaining the temperature / humidity distribution in the heating chamber 20 uniformly. The upper object 90 can be heated from both the upper and lower sides. As a result, the upper and lower sides of the object to be heated 90 can be heated without unevenness.

  Further, the superheated steam on the lower side of the tray 4 is returned to the upper side of the tray 4 through the through holes 4f on the opening 20a side and the back side surface 20b of the heating chamber, so that a new lower side of the tray 4 is provided. Superheated steam can be supplied efficiently. Accordingly, the object to be heated 90 can be efficiently heated also from the lower side of the tray 4.

  In addition, when time elapses during the cooking operation, the amount of steam in the heating chamber 20 increases, and the surplus amount of steam passes from the discharge port 27 through the discharge passage 64 and the exhaust duct 65. And discharged from the exhaust port 66 to the outside. At that time, the steam passing through the discharge passage 64 is cooled and condensed by the radiator 69 provided in the discharge passage 64, thereby preventing the steam from being discharged to the outside as it is.

  After cooking, the control device 80 displays a cooking end message on the operation panel 11, and a buzzer (not shown) provided on the operation panel 11 sounds a signal. When a user who knows the end of cooking by these messages and buzzer opens the door 12, the control device 80 detects that the door 12 has been opened by a sensor (not shown) and opens the damper 68 of the exhaust passage 67. Open instantly. Then, the first pipe 61 of the external circulation path 60 communicates with the exhaust duct 65 through the exhaust passage 67, and the steam in the heating chamber 20 is blown by the blower fan 28 through the suction port 25, the first pipe 61, and the exhaust passage 67. Then, the gas is discharged from the exhaust port 66 through the exhaust duct 65. This damper operation functions similarly even if the user opens the door 12 during cooking. Therefore, the user can safely remove the object to be heated 90 from the heating chamber 20 without being exposed to steam.

  As described above, according to this embodiment, the tray 4 is locked to the locking portions 3 on the left and right side surfaces of the heating chamber 20, and the through hole 4 f of this tray is opposed to the steam outlet 22. Thus, the object to be heated 90 can be heated without unevenness without using a conventional waist-high grill net. Therefore, it is possible to save the trouble of installing the grill net in the heating chamber before cooking, and maintenance can be facilitated because only the tray 4 needs to be cleaned after cooking.

  In the above embodiment, the tray 4 is locked to the locking portion 3 and heated from both the upper and lower sides of the tray 4. However, when heating is performed only from the upper side of the tray 4, the tray 4 is heated to the bottom surface 20 d of the heating chamber 20. Should be arranged. In this case, it is not necessary to secure a place for disposing the unused grill net as in the prior art, and the unused grill net does not disturb and give a complicated impression.

  Moreover, in the said embodiment, although the latching | locking part 3 was provided below the steam blower outlet 22, you may provide the latching | locking part 3 above the steam blower outlet 22. FIG. In this case, the tray 4 of the present embodiment is locked to the locking portion 3 in the reverse direction so that the through hole 4f of the tray is opposed to the steam outlet 22 and the steam from the steam outlet 22 is reduced. The portion can be supplied to the upper side of the tray 4 through the through hole 4f of the tray, and the other part of the steam can be supplied to the lower side of the tray 4.

  Moreover, in the said embodiment, although the through-hole 4f was provided in the vicinity of the four sides of the tray 4, when it arrange | positions in the heating chamber 20, the through-hole 4f located in the opening 20a side of a heating chamber, and a back side surface Any one of the through holes 4f located on the 20b side may be deleted. Further, the number of through holes 4f formed in the vicinity of each side is not limited to four and may be any number. The shape of the through hole 4f is not limited to a rectangle, and can be any shape such as a square, a circle, or an ellipse.

  Further, the steam may be supplied into the heating chamber 20 only by the steam outlets 22 on both the left and right sides without providing the ceiling steam outlet 55.

  In this embodiment, superheated steam at about 300 ° C. at 1 atm is used as the heating fluid, but steam at about 100 ° C. at 1 atm can be used in addition to superheated steam. Further, not limited to steam, high-temperature air may be used as a heating fluid. In short, as long as an object to be heated can be heated, other heating fluids such as gas and liquid can be used.

It is an external appearance perspective view of the heating cooker in which the tray for heating cookers of this embodiment is used. It is an external appearance perspective view of the state which opened the door of the heating cooker. It is a top view which shows the tray for heating cookers of this embodiment. It is sectional drawing of the tray for heating cookers in the AA line cross section of FIG. 3A. It is sectional drawing which expanded and showed the vicinity of the part which the tray for heating cookers latches to the latching | locking part of a heating chamber. It is a schematic block diagram which shows the basic composition of a heating cooker. It is a schematic diagram which shows the control system of a heating cooker.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating cooker 3 Locking part 4 Tray 4a Tray edge 4b Side wall part of tray 4c Flat surface part of tray 4d Inner wall part of tray 4f Through hole of tray 20 Heating chamber 22 Steam blowing part 23 Steam supply passage

Claims (2)

A tray for a heating cooker that is locked in a heating chamber of a heating cooker and supports an object to be heated that is heated by a heating fluid supplied into the heating chamber,
A substantially rectangular bottom on which the object to be heated is placed;
A side wall portion that is continuous with the two opposite sides of the bottom portion and faces the side of the heating fluid outlet formed on the inner surface of the heating chamber;
A first through hole is formed in the side wall portion and circulates a part of the heating fluid supplied from the outlet to the heating chamber between the front surface side and the back surface side of the bottom portion. Heater cooker tray. The tray for a heating cooker according to claim 1,
Provided in the vicinity of at least one of the two sides that are substantially orthogonal to the side where the side wall portion of the bottom is continuous, and the first through hole circulates the heating fluid in a direction opposite to the direction in which the heating fluid circulates. A tray for a heating cooker comprising a second through hole.

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