JP4558593B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that cooks food using steam.

  2. Description of the Related Art Conventionally, as a cooking device that performs two-stage cooking using a hot-air circulation system, there is one disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 1-260219). In this cooking device, an upper heater and a hot air circulation fan are provided at the top of the heating chamber, and a flat heater unit is provided at the bottom of the heating chamber. In addition, a two-stage rail is provided on the side wall of the heating chamber, and the upper rail supports the snow core, while the lower rail supports the iron plate dish.

  In the above configuration, in the oven mode of the two-stage heating cooking, the hot air generated by the upper heater is blown out from the exhaust port provided in the upper wall of the heating chamber into the heating chamber by the hot air circulation fan. The bottom surface of the cake placed on the upper stage and the upper surface of the cake placed on the lower stage are heated by passing along the upper side of the cake. On the other hand, the lower iron plate dish is heated by the rise in heat generated by the flat heater unit, and the bottom surface of the cake placed on the lower stage is heated by the iron plate dish.

However, in the heating cooker that performs the conventional two-stage heating cooking disclosed in Patent Document 1, in order to uniformly apply hot air to the cake placed on the snocoami and the iron plate dish installed in two stages, It is necessary to provide a hot air circulation fan and a plurality of upper and lower heaters around the heating chamber, and the ratio of the volume of the heating chamber to the volume of the cabinet is larger than that of a normal heating cooker for one-stage cooking. There is a problem of becoming smaller. Moreover, when the volume of the said heating chamber is made the same, there also exists a problem that product cost becomes high compared with the case of the normal heating cooker for one-step heating cooking.
JP-A-1-260219

  Accordingly, an object of the present invention is to provide a heating cooker capable of two-stage heating cooking and having a ratio of the volume ratio of the heating chamber to the volume of the cabinet equivalent to a heating cooker for one-stage heating cooking. It is in.

In order to solve the above problems, the heating cooker of the present invention is:
A steam generator for generating steam;
A steam temperature raising device for raising the temperature of the steam from the steam generator;
A heating chamber for heating an object to be heated by steam supplied from the steam heating device;
A steam outlet provided on both side walls of the heating chamber, and having a steam outlet for blowing steam supplied from the steam temperature raising device toward the heating chamber;
A steam supply passage for supplying steam from the steam temperature raising device to the steam outlet,
The steam heating device is configured such that the air in the heating chamber sucked from the suction port is circulated by a circulation path,
The steam outlet is provided in two stages in the vertical direction on both side walls of the heating chamber,
A plurality of the steam supply passages are provided corresponding to the upper steam outlet provided in the upper stage and the lower steam outlet provided in the lower stage, and the upper steam outlet and the lower steam outlet are provided. It is designed to supply steam independently,
A partition member that partitions the heating chamber into an upper heating chamber in which steam is blown from the upper steam blowing portion and a lower heating chamber in which steam is blown from the lower steam blowing portion ;
An opening / closing device that opens and closes only one of the steam supply passage for supplying steam to the upper steam outlet and the steam supply passage for supplying steam to the lower steam outlet. It is said.

According to the above configuration, the superheated steam from the steam temperature raising device blows out from the upper steam blowing portion provided in the upper stage on both side walls of the heating chamber to the upper heating chamber formed by partitioning the heating chamber with the partition member. Is done. Similarly, it blows off to the lower heating chamber of the said heating chamber from the lower steam blowing part provided in the lower stage in the both side walls of the said heating chamber. Then, the air in the heating chamber sucked from the suction port is circulated to the steam temperature raising device by the circulation path. Thus, the upper heating chamber and the lower heating chamber can be efficiently and uniformly heated without providing a circulation fan or a new heat source for circulating the steam in the heating chamber.

  Therefore, without changing the value of the ratio of the volume of the heating chamber to the volume of the cabinet in the heating cooker for one-stage heating cooking in which the steam outlets are provided in one stage, the heating cooker for two-stage heating cooking is provided. Can be configured. Furthermore, since there is no need to provide a circulation fan or a new heat source as described above, the improvement in product cost associated with the two-stage cooking can be kept to the minimum necessary by the addition of the steam blowing section and the steam supply passage. it can.

Further, the upper heating unit is closed by closing one of the steam supply passage for supplying steam to the upper steam outlet and the steam supply passage for supplying steam to the lower steam outlet by the opening / closing device. The superheated steam is supplied from the steam temperature raising device only to either the chamber or the lower heating chamber. In this way, it is possible to perform one-stage heating cooking by the configuration for two-stage heating cooking.

Moreover, in the heating cooker of one embodiment,
While the upper steam blowing part is provided in the central part in the front-rear direction of the heating chamber,
The lower steam outlet is disposed at least in the front part and the rear part in the front-rear direction of the heating chamber,
The steam outlets located at the front part and the rear part of the lower steam outlet are configured to blow steam toward the center of the heating chamber.

  According to this embodiment, in order to blow out the superheated steam from the steam temperature raising device toward the central portion of the upper heating chamber, the upper steam blowing portion is provided in the central portion in the front-rear direction of the heating chamber. Yes. As a result, the lower steam blowing portion is disposed at each of a front portion and a rear portion in the front-rear direction of the heating chamber while avoiding a position directly below the upper steam blowing portion as much as possible. Even in that case, the steam outlets located at the front part and the rear part in the lower steam blowing part are configured to blow steam toward the central part of the lower heating chamber, so that the lower part The superheated steam can be sufficiently blown to the object to be heated arranged in the center of the heating chamber.

Moreover, in the heating cooker of one embodiment,
The thickness of the steam supply passage for supplying steam to the lower steam blowing portion is larger than the thickness of the steam supply passage for supplying steam to the upper steam blowing portion.

  The length of the steam supply passage for supplying steam to the lower steam outlet from the steam temperature raising device is longer than that of the steam supply passage for supplying steam to the upper steam outlet. For this reason, the amount of superheated steam supplied to the lower steam outlet is smaller than the amount supplied to the upper steam outlet. According to this embodiment, the thickness of the steam supply passage having a longer length from the steam temperature raising device is larger than that of the steam supply passage having a shorter length from the steam temperature raising device. is doing. Therefore, the upper heating chamber and the lower heating chamber can be heated more evenly.

Moreover, in the heating cooker of one embodiment,
The lower steam outlet includes two lower steam outlets independent of each other, a lower first steam outlet provided at the front of the heating chamber and a lower second steam outlet provided at the rear of the heating chamber. Consists of
A plurality of the steam supply passages are provided corresponding to the lower first steam outlet and the lower second steam outlet, and are independent of the lower first steam outlet and the lower second steam outlet. Then steam is supplied.

When the upper steam blowing portion is provided at the center in the front-rear direction of the heating chamber, it is difficult for superheated steam to spread directly under the upper steam blowing portion in the lower steam blowing portion. According to this embodiment, the lower steam outlet is divided into two lower steam outlets: a lower first steam outlet provided at the front of the heating chamber and a lower second steam outlet provided at the rear. It consists of parts. Therefore, it is possible to efficiently and uniformly heat the lower heating chamber by eliminating the presence of the lower steam outlet immediately below the upper steam outlet where the superheated steam from the steam temperature raising device is difficult to spread .

Also, in the cooker of one embodiment,
The steam temperature raising device includes a temperature raising chamber having a bottomed cylindrical shape,
The opening / closing device is a rotary shutter that opens and closes a steam outlet to the steam supply passage provided in the temperature raising chamber by rotating in sliding contact with a cylindrical inner wall in the temperature raising chamber.

  According to this embodiment, by controlling the rotation of the rotary shutter in only one direction, the steam supply passage for supplying steam to the upper steam outlet and the steam supply for supplying steam to the lower steam outlet. Any one of the passages can be easily opened and closed.

Moreover, in the heating cooker of one embodiment,
The steam temperature raising device is placed on the heating chamber,
An area under the steam temperature raising device in the ceiling panel of the heating chamber is provided with a ceiling steam outlet for blowing steam from the steam temperature raising device into the heating chamber,
The opening / closing device can also open and close the steam supply passage for supplying steam to all of the upper steam outlet and the lower steam outlet.

  According to this embodiment, when performing one-stage cooking, by closing the steam supply passage for supplying steam to all of the upper steam outlet and the lower steam outlet by the opening and closing device, The superheated steam from the steam temperature raising device is blown into the heating chamber only from the ceiling steam outlet provided in the ceiling panel of the heating chamber. In this way, superheated steam can be intensively sprayed onto the object to be heated placed in the approximate center of the heating chamber, and even when the object to be heated is small, it can be rapidly heated in a short time. it can.

Moreover, in the heating cooker of one embodiment,
The opening / closing device is a slide shutter that opens and closes a steam outlet to the steam supply passage provided in the temperature raising chamber by sliding in sliding contact with an inner wall of the temperature raising chamber in the steam temperature raising device,
When the steam supply passage for supplying steam to all of the upper steam blowing portion and the lower steam blowing portion is closed, the slide shutter is a ceiling steam located in the vicinity of the steam supply passage in the ceiling panel. The air outlet is also closed.

  According to this embodiment, when performing the one-stage cooking, when closing the steam supply passage for supplying steam to all of the upper steam blowing part and the lower steam blowing part, The ceiling steam outlet located near the steam supply passage is also closed. Therefore, the superheated steam from the steam temperature raising device is injected more intensively to the approximate center of the heating chamber.

As is clear from the above, the heating cooker of the present invention blows the superheated steam from the steam temperature raising device into the upper heating chamber from the upper steam blowing portion provided at the upper stage on both side walls of the heating chamber, while Blowing out from the lower steam outlet provided into the lower heating chamber and circulating the air in the heating chamber sucked from the suction port to the steam temperature raising device, a circulation fan for circulating the steam in the heating chamber, The upper heating chamber and the lower heating chamber can be efficiently and uniformly heated without providing a new heat source.

  Therefore, without changing the value of the ratio of the volume of the heating chamber to the volume of the cabinet in the heating cooker for one-stage heating cooking in which the steam outlets are provided in one stage, the heating cooker for two-stage heating cooking is provided. Can be configured. Furthermore, since there is no need to provide a circulation fan or a new heat source as described above, the improvement in product cost associated with the two-stage cooking can be kept to the minimum necessary by the addition of the steam blowing section and the steam supply passage. It can be done.

Furthermore, since either the steam supply passage for supplying steam to the upper steam outlet or the steam supply passage for supplying steam to the lower steam outlet can be closed by the switchgear, the upper heating chamber or the lower Superheated steam can be supplied from only the steam heating device to only one of the heating chambers. Therefore, it is possible to perform one-stage heating cooking by the configuration for two-stage heating cooking.

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

  FIG. 1 is an external perspective view of the heating cooker according to the present embodiment. 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 heating cooker 1 with the door 12 opened. A rectangular parallelepiped heating chamber 20 is provided in the cabinet 10. The heating chamber 20 has an opening 20a on the front side facing the door 12, and the side surface, bottom surface and top surface of the heating chamber 20 are formed of stainless steel plates. The door 12 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.

  Further, a stainless steel tray 21 is installed on the bottom surface of the heating chamber 20, and a stainless steel wire rack 24 (see FIG. 3) for placing an object to be heated is installed on the tray 21. The Furthermore, a substantially rectangular side surface steam outlet 22 (only one of which is visible in FIG. 2) is provided at the lower part of both side surfaces of the heating chamber 20.

  FIG. 3 is a schematic configuration diagram showing a basic configuration of the heating cooker 1. As shown in FIG. 3, the heating cooker 1 includes a heating chamber 20, a water tank 30 that stores steam water, 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.

  A grid-like rack 24 is placed on a tray 21 installed in the heating chamber 20, and an object to be heated 90 is placed at the approximate center of the rack 24.

  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 air release 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 generating device 40 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 first and second pipes 61 and 62 in the exhaust passage 67.

  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 provided at one end of a steam supply passage 23 (only one is visible in FIG. 3) as the superheated steam supply passage that extends toward the left and right sides at the top of the heating chamber 20. Are connected to each other. The steam supply passage 23 extends downward along both side surfaces of the heating chamber 20, and is connected to a side surface steam outlet 22 provided on the lower side of both side surfaces of the heating chamber 20 at the other end. Has been.

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

  The control device 80 includes a microcomputer, an input / output circuit, and the like, and as shown in FIG. 4, the blower fan 28, the first steam heater 52, the second steam heater 53, the damper 68, and the drain valve. 70, the steam generating heater 42, the operation panel 11, the water tank water level sensor 36, the water level sensor 43, the temperature sensor 81 for detecting the temperature in the heating chamber 20 (shown in FIG. 3), and the heating chamber 20 A humidity sensor 82 for detecting the humidity inside the pump 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, the basic operation of performing one-stage cooking with the heating cooker 1 having the above configuration will be described with reference to FIGS. 3 and 4. 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 temperature raising 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, 2nd steam heating heaters 52 and 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, the other part of the superheated steam is ejected from the side surface 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.

  Thus, the superheated steam ejected from the ceiling side of the heating chamber 20 is vigorously supplied toward the heated object 90 side in the center, and the superheated steam ejected from the left and right side surfaces of the heating chamber 20 is supplied to the tray 21. After the collision, the material to be heated 90 is supplied while being wrapped from below the material 90 to be heated. As a result, in the heating chamber 20, convection occurs in such a manner that it blows down at the center and rises outside thereof. Then, the convection steam is sequentially sucked into the suction port 25 and repeatedly circulates through the external circulation path 60 and returns to the heating chamber 20 again.

  In this way, by forming a convection of superheated steam in the heating chamber 20, the superheated steam from the steam heating device 50 is blown to the ceiling steam while the temperature and humidity distribution in the heating chamber 20 is kept uniform. It is possible to eject the gas from the outlet 55 and the side outlet 22 and to efficiently collide with the heated object 90 placed on the rack 24, and the heated object 90 is heated by the collision of the superheated steam. In that case, the superheated steam that has contacted the surface of the object to be heated 90 also heats the object to be heated 90 by releasing latent heat when dew condensation occurs on the surface of the object to be heated 90. As a result, a large amount of heat of the superheated steam can be reliably and promptly applied to the entire surface of the article 90 to be heated. Therefore, it is possible to realize cooking with no spots and good finish.

  In addition, when the 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. The water condensed in the discharge passage 64 by the radiator 69 flows down in the discharge passage 64 and is guided to the receiving tray 21, and is processed together with the water generated by cooking after the cooking.

  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 via 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. And 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 take out the object 90 to be heated from the heating chamber 20 without being exposed to steam.

  Hereinafter, the basic configuration shown in FIGS. 3 and 4 and the configuration in the case of performing the two-stage heating cooking in accordance with the basic operation described above will be described in detail particularly with respect to the heating chamber 20, the steam heating device 50, and the steam supply passage 23. explain.

  FIG. 5 is a front view of the steam temperature raising device 50 and the heating chamber 20. FIG. 6 is a side view of the steam temperature raising device 50 and the heating chamber 20. FIG. 7 is a plan view of the steam temperature raising device 50 and the heating chamber 20. The steam temperature raising device 50 includes a first steam heater 52 and a second steam, which are large-diameter sheath heaters with a large electric power (1000 W), in a dish-shaped case 51 as a temperature raising chamber having a substantially rectangular recess 51a. The heater 53 is arranged. Further, although not shown in FIGS. 5 to 7, the opening of the recess 51 a of the dish-shaped case 51 is covered with a metal ceiling panel 54 provided on the ceiling surface of the heating chamber 20. FIG. 7 shows a state where the top plate of the dish-shaped case 51 is removed.

  Steam supply pipes 94A, 94B, 94C are connected to the side wall 91 of the dish-shaped case 51. The side wall 91 side to which the steam supply pipes 94A, 94B, 94C are connected is the back side of the main heating cooker 1, and the steam supply pipes 94A, 94B, 94C are as shown in FIG. 1 is connected to a steam suction ejector 44 provided on the back side of the heating chamber 20 via three third pipes 63A, 63B, 63C. Further, four steam outlets are provided in each of the side walls 92 and 93 which are adjacent to and opposite to the side wall 91 in the dish-shaped case 51, and the steam supply passage 23 shown in FIG. ing.

  Here, four steam supply passages 23 are arranged per one side of the heating chamber 20 in the present embodiment, and four steam supply ports are provided to the four steam outlets in the side wall 92 of the dish-shaped case 51. The passages 23A1 to 23A4 are connected. Similarly, four steam supply passages 23B1 to 23B4 are connected to the four steam outlets in the side wall 93 of the dish-shaped case 51.

  FIG. 6 is a side view of the steam heating device 50 and the heating chamber 20 as viewed from the side wall 93 side of the dish-shaped case 51. An upper part that receives steam from the steam supply passage 23 and changes the flow direction in the horizontal direction and blows out into the heating chamber 20 at a position slightly above the middle in the vertical direction on the side wall 96 of the heating chamber 20 and in the middle in the front-rear direction. A steam outlet 101 is provided. Similarly, a lower first steam outlet 102 is provided at a lower position on the side wall 96 and at a front position. Furthermore, a lower second steam outlet 103 is provided at a lower position on the side wall 96 and at a rear position. And the side surface steam blower outlet 22 is provided in the position of the upper steam blowing part 101 in the side wall 96 of the heating chamber 20, the lower 1st steam blowing part 102, and the lower 2nd steam blowing part 103. FIG.

  Further, the four steam supply passages 23B1 to 23B4 connected to the four steam outlets provided in the side wall 93 of the dish-shaped case 51 are provided in the ceiling panel 54 of the heating chamber 20 as shown in FIG. Extends horizontally along the side wall 96 and then extends vertically along the side wall 96. Of the four steam supply passages 23B1 to 23B4, the steam supply passage 23B1 located at the forefront is connected to the lower first steam blow-out portion 102, and the steam supply passage 23B4 located at the rearmost is the lower second steam blow-out. Two steam supply passages 23 </ b> B <b> 2 and 23 </ b> B <b> 3 that are connected to the portion 103 and located in the middle are connected to the upper steam blowing portion 101. In FIG. 5, the lower first steam outlet 102 and the steam supply passage 23B1 connected thereto are removed so that the upper steam outlet 101 and the steam supply passage 23B2 connected thereto can be seen. is doing.

  Similarly, in the side wall 97 facing the side wall 96 in the heating chamber 20, the upper steam blowing portion 104 is provided at a position slightly above the middle of the side wall 97 and in the middle of the front and rear direction. The lower first steam outlet 105 is provided at the front position and the lower second steam outlet 106 is provided at the lower position on the side wall 97 and at the rear position. Side wall steam outlets 22 are provided at positions of the upper steam outlet 104, the lower first steam outlet 105, and the lower second steam outlet 106 on the side wall 97. Of the four steam supply passages 23A1 to 23A4 connected to the side wall 92 of the dish-shaped case 51, the steam supply passage 23A1 located at the forefront is connected to the lower first steam outlet 105 and is located at the rearmost position. The steam supply passage 23A4 is connected to the lower second steam outlet 106, and the two steam supply passages 23A2 and 23A3 located in the middle are connected to the upper steam outlet 104.

  That is, in the basic configuration for one-stage heating cooking shown in FIG. 3, the side steam outlet 22 that extends substantially horizontally at the bottom of both side surfaces of the heating chamber 20 and is formed in a substantially rectangular shape is a configuration for two-stage heating cooking. Then, the two side walls 96 and 97 of the heating chamber 20 are formed in two steps.

  A stainless steel tray 107 as a partition member is installed via a rail or the like (not shown) slightly below the upper steam outlets 101 and 104 in the heating chamber 20. The upper heating chamber and the lower heating chamber are separated. Thus, the reason why the inside of the heating chamber 20 is separated into the upper heating chamber 108 and the lower heating chamber 109 is as follows. That is, the superheated steam blown from above the heating chamber 20 through the plurality of ceiling steam outlets 55 formed on the ceiling panel 54 from the steam heating device 50 is difficult to be supplied below the heating chamber 20. , It does not contribute much to cooking for the object to be heated in the lower heating chamber 109. Therefore, the upper heating chamber 108 and the lower heating chamber 109 are separated by the receiving tray 107, and the amount of superheated steam from above the heating chamber 20 through the ceiling steam outlet 55 is reduced, whereby the upper steam outlet 101, 104, without providing a hot air circulation fan like the heating cooker disclosed in Patent Document 1, by superheated steam from the lower first steam blowing parts 102, 105 and the lower second steam blowing parts 103, 106 The inside of the heating chamber 108 and the inside of the lower heating chamber 109 can be heated evenly.

  In addition, the two steam supply passages 23B2, 23B3 (23A2, 23A3) located in the middle are connected to one upper steam outlet 101 (104), whereas the two steam supply passages 23B2, 23B3 (23A2, 23A3) are located in the front and rear. Supply passages 23B1 and 23B4 (23A1 and 23A4) are connected to individual lower first steam outlets 102 (105) and lower second steam outlets 103 (106). In this case, similarly to the two steam supply passages 23B2, 23B3 (23A2, 23A3) located in the middle, the two steam supply passages 23B1, 23B4 (23A1, 23A4) located in the front and rear are also one lower steam outlet. (In short, the lower first steam blowing portion 102 (105) and the lower second steam blowing portion 103 (106) are integrally formed). However, since the upper steam outlet 101 (104) is located in the middle, the connection positions of the two steam supply passages 23B1, 23B4 (23A1, 23A4) to the integrally formed lower steam outlet are as follows. I have to go back and forth. Therefore, it is difficult for superheated steam to reach the central portion of the integrated lower steam outlet. As a result, the lower heating chamber 109 is divided into the lower lower steam blowing portion 102 (105) at the front and the lower second steam blowing portion 103 (106) at the rear. The inside can be efficiently and uniformly heated.

  In that case, the two steam supply passages 23B1 and 23B4 (23A1 and 23A4) having a longer length from the steam outlet in the side wall 93 (92) of the dish-shaped case 51 (that is, located on the front and rear sides) are provided. By making the diameter thicker than the diameter of the two steam supply passages 23B2, 23B3 (23A2, 23A3) having a shorter length from the steam outlet (that is, located in the middle), the upper heating chamber The inside of 108 and the inside of the lower heating chamber 109 can be heated more evenly.

  Moreover, the blowing direction of the superheated steam from the side surface steam outlet 22 in the lower first steam outlet 102 (105) connected to the steam supply passage 23B1 (23A1) located in front is the rearward direction of the heating chamber 20 The superheated steam is blown out toward the center of the lower heating chamber 109. In contrast, the blowing direction of the superheated steam from the side surface steam outlet 22 in the lower second steam outlet 103 (106) connected to the steam supply passage 23B4 (23A4) located at the rear of the heating chamber 20 The front-rear direction is forward, and superheated steam is blown out toward the center of the lower heating chamber 109. Thus, the superheated steam is sufficiently blown to the object to be heated arranged at the center in the lower heating chamber 109.

  As described above, in the present embodiment, the upper and lower steam outlets 101 and 104 and the lower first steam outlet are provided on the side walls 96 and 97 of the heating chamber 20 with the side steam outlets 22 respectively. 102, 105 and the lower second steam outlets 103, 106 are formed in two upper and lower stages, and the upper heating chamber 108 in which the side steam outlets 22 of the upper steam outlets 101, 104 are open and the lower first, first The lower heating chamber 109 in which the side surface steam outlets 22 of the two steam outlets 102, 103, 105, 106 are opened is separated by a tray 107.

  Then, the steam outlet of the dish-shaped case 51 in the steam temperature raising device 50 is connected to the lower first steam outlets 102 and 105 located in front of the heating chamber 20 through the steam supply passages 23B1 and 23A1, and is positioned rearward. Are connected to the lower second steam outlets 103 and 106 by steam supply passages 23B4 and 23A4, and are connected to the upper steam outlets 101 and 104 located in the middle by two steam supply passages 23B2, 23B3, 23A2 and 23A3. Yes.

  Therefore, in the basic structure for performing the one-stage heating cooking shown in FIG. 3, the inside of the upper heating chamber 108 and the lower heating are not provided without additionally providing a hot air circulation fan for circulating the steam in the heating chamber 20 or a new heat source. The inside of the chamber 109 can be heated evenly. That is, the cooking device 1 for two-stage heating cooking can be configured without changing the value of the ratio of the volume of the heating chamber 20 to the volume of the cabinet 10 in the basic configuration shown in FIG. Moreover, the improvement of the product cost accompanying two-step cooking can be stopped to the minimum necessary by addition of the said steam blowing part and a steam supply channel | path.

  In the present embodiment, the heating chamber 20 is provided with steam outlets having side steam outlets 22 in two upper and lower stages, and the upper and lower side steam outlets 22 are separated by a tray 107, A heating chamber 108 and a lower heating chamber 109 are formed. However, the steam outlets having the side steam outlets 22 may be arranged in three upper and lower stages to form heating chambers in three upper and lower directions.

  By the way, when performing one-step heating cooking with the heating cooker 1 for two-stage heating cooking in the present embodiment, it is necessary to stop the supply of superheated steam to the upper steam blowing portions 101 and 104. Hereinafter, the superheated steam distribution switching device for switching the superheated steam distribution destination associated with the switching between the two-stage heat cooking and the one-stage heat cooking will be described.

  FIG. 8 is a plan view of the dish-shaped case 51, showing a state where the top plate is removed. The slide shutter 110 as the opening / closing device for opening and closing the steam supply passages 23A2, 23A3 along the side walls 92, 93 in the dish-shaped case 51, and the slide shutter as the opening / closing device for opening / closing the steam supply passages 23B2, 23B3. 111 is provided. The slide shutters 110 and 111 are in close contact with the side walls 92 and 93 and are slidable along the side walls 92 and 93. By sliding along the side walls 92 and 93, the steam supply passages 23A2, 23A3 and 23B2 are provided. Open and close the steam outlet to 23B3.

  Here, the slide driving method of the slide shutters 110 and 111 is not particularly limited, but the following driving method is adopted in the present embodiment. That is, the rotary shaft 112 is rotatably attached to a top plate (not shown) of the dish-shaped case 51, and the center of the rotary arm 113 is attached to the rotary shaft 112. Rollers 114 and 115 are rotatably attached to both ends of the rotating arm 113, and the rollers 114 and 115 are fitted in guide grooves 116 and 117 provided in the slide shutters 110 and 111, respectively. Thus, the slide shutters 110 and 111 are slid along the side walls 92 and 93 by rotating the rotary shaft 112 by, for example, a stepping motor (not shown) mounted on the top plate of the dish-shaped case 51. is there.

  FIG. 9 shows the configuration of the slide shutter 110. FIG. 9A is a front view, and FIG. 9B is a side view. Two openings 119 and 120 that allow the steam outlets of the steam supply passages 23A2 and 23A3 in the dish-shaped case 51 to communicate with the recesses 51a of the dish-shaped case 51 are formed on the side surface 118 of the slide shutter 110 facing the side wall 92 of the dish-shaped case 51. Is provided. Therefore, by sliding the slide shutter 110 by a distance slightly larger than the diameters of the openings 119 and 120 as described above, the steam supply passages 23A2 and 23A3 are closed in the case of performing one-stage heating cooking, while the two-stage heating cooking is performed. When performing the above, the steam supply passages 23A2 and 23A3 can be opened. Since the configuration of the slide shutter 111 is the same as that of the slide shutter 110, the description thereof is omitted.

  FIG. 10 shows a superheated steam distribution switching device different from those shown in FIGS. 10A is a plan view, and FIG. 10B is a cross-sectional view taken along the line AA ′ in FIG. 10A. In this case, the dish-shaped case 51 is formed in a circular shape in plan view. A rotary shutter 121 serving as the opening / closing device for opening / closing the steam supply passages 23A2, 23A3, 23B2, and 23B3 is provided along the inner wall of the circular dish-shaped case 51. The rotary shutter 121 has a bottomed cylindrical shape. The cylindrical side wall 122 is brought into close contact with the inner wall of the dish-shaped case 51 and is rotatable along the inner wall of the dish-shaped case 51. And by rotating along the inner wall of the dish-shaped case 51, the steam outlet to the steam supply passages 23A2, 23A3, 23B2, and 23B3 is opened and closed.

  A rotary shaft 123 is rotatably attached to a top plate (not shown) of the dish-shaped case 51, and the center of the top plate 121 a of the rotary shutter 121 is attached to the rotary shaft 123. Thus, the rotary shutter 121 is rotated along the inside of the dish-shaped case 51 by rotating the rotating shaft 123 by the stepping motor 124 mounted on the top plate of the dish-shaped case 51.

  As shown in FIG. 10B, the cylindrical side wall 122 of the rotary shutter 121 is provided with a closing portion 125 having a width capable of simultaneously closing the two steam supply passages 23A2 and 23A3. Further, a closing portion 126 having a width capable of simultaneously closing the two steam supply passages 23B2 and 23B3 is provided at a position symmetrical to the rotating shaft 123 in the side wall 122. And between the closing part 125 and the closing part 126, the opening part (notch part) 127 which has the width | variety which can open | release four steam supply passages 23A1-23A4 simultaneously, and four steam supply passages 23B1-23B4. And an opening portion (notch portion) 128 having a width capable of simultaneously opening. Therefore, by rotating the rotary shutter 121 as described above, the closing portion 125 is positioned at the positions of the steam supply passages 23A2 and 23A3, and the closing portion 126 is positioned at the positions of the steam supply passages 23B2 and 23B3. The steam outlets to 23A2, 23A3, 23B2, and 23B3 can be closed. On the other hand, by positioning the opening portion 127 at the position of the steam supply passages 23A1 to 23A4 and the opening portion 128 at the position of the steam supply passages 23B1 to 23B4, the steam outlets to the steam supply passages 23A1 to 23A4 and 23B1 to 23B4 are provided. It can be opened.

  In that case, the rotary shutter 121 does not need to reverse the stepping motor 124 as in the case of the slide shutters 110 and 111, and the opening / closing control of the steam supply passage 23 becomes easier.

  As described above, the slide shutters 110 and 111 are slid along the side walls 92 and 93 by the stepping motor mounted on the top plate of the dish-shaped case 51, or the rotary shutter 121 is moved to the inner wall of the dish-shaped case 51. , It is possible to easily switch between stopping the superheated steam to the upper steam blowing parts 101 and 104 and supplying superheated steam to all the steam blowing parts 101 to 103 and 104 to 106. It can be done. Furthermore, by dividing the upper heating chamber 108 and the lower heating chamber 109 by the receiving tray 107, in the case of one-stage heating cooking, cooking can be performed quickly with a small amount of superheated steam.

  In the above description, in the case of one-stage heating cooking, the supply of superheated steam to the upper steam blowing parts 101 and 104 is stopped, and heating cooking is performed only by the lower heating chamber 109. However, the present invention is not limited to this, and the supply of superheated steam to the lower first and second steam blowing sections 102, 103, 105, 106 is stopped and cooking is performed only by the upper heating chamber 108. It is also possible to do so.

  Next, an embodiment in which the object to be heated 90 can be rapidly heated when performing one-stage heating cooking will be described.

  In the basic configuration for the one-stage heating cooking shown in FIG. 3 or the one-stage heating cooking using the upper heating chamber 108 shown in FIGS. 5 to 7, overheating from the dish-shaped case 51 of the steam temperature raising device 50. A part of the steam is jetted into the heating chamber 20 or the upper heating chamber 108 from a plurality of ceiling steam outlets 55 provided on the ceiling panel 54, while the other part of the superheated steam is a dish-shaped case 51. It is ejected from the side steam outlets 22 on both sides of the heating chamber 20 or the upper heating chamber 108 through the steam supply passages 23 provided on both sides of the heating chamber 20. However, when the volume of the object to be heated 90 placed at the approximate center of the heating chamber 20 or the upper heating chamber 108 is small, the superheated steam is dispersed in the ceiling steam outlet 55 and the steam supply passage 23 and is heated. Alternatively, since the temperature is supplied to the upper heating chamber 108, there is a problem that the temperature of the article 90 to be heated does not easily increase.

  Therefore, in such a case, rather than supplying the superheated steam from the steam supply passage 23 and supplying the superheated steam only from the ceiling steam outlet 55 toward the heated object 90, The heated object 90 can be heated in a short time.

  Hereinafter, normal heating cooking in which superheated steam is supplied from the ceiling steam outlet 55 and the steam supply passage 23 to the heating chamber 20 or the upper heating chamber 108, and superheated steam is supplied only from the ceiling steam outlet 55 to the heating chamber 20 or the upper heating chamber. The configuration of the superheated steam distribution switching device that switches to local heating cooking supplied to 108 will be described. However, in order to simplify the explanation, the basic configuration for the one-stage heating cooking shown in FIG. 3 will be described as an example, but in the case of the configuration for performing the one-stage heating cooking using the upper heating chamber 108 shown in FIGS. Is the same.

  FIG. 11 is a plan view of the dish-shaped case 51, showing a state in which the top plate is removed. Here, in the present embodiment, three steam outlets are provided in each of the side walls 131 and 132 facing each other in the dish-shaped case 51, and the steam supply passage 23A1 is provided in the steam outlet of the side wall 131. It is assumed that the steam supply passages 23 </ b> B <b> 1 to 23 </ b> B <b> 3 are connected to the steam outlets of the side wall 132.

  A slide shutter 133 for opening and closing the steam supply passages 23A1 to 23A3 and a slide shutter 134 for opening and closing the steam supply passages 23B1 to 23B3 are provided along the side walls 131 and 132 in the dish-shaped case 51, respectively. ing. The slide shutters 133 and 134 are in close contact with the side walls 131 and 132 and are slidable along the side walls 131 and 132. By sliding along the side walls 131 and 132, the steam supply passages 23A1 to 23A3 and 23B1 are provided. Open and close the steam outlet to ~ 23B3.

  Here, the slide driving method of the slide shutter side walls 131 and 132 is not particularly limited, but in the present embodiment, the driving method shown in FIG. 8 is used in the above embodiment. Then, by rotating the rotating shaft 135 by, for example, a stepping motor (not shown) mounted on the top plate of the dish-shaped case 51, the rotating arm 136, the rollers 137, 138, and the guide grooves 139, 140 are moved. Accordingly, the slide shutters 133 and 134 slide along the side walls 131 and 132.

  FIG. 12 shows the configuration of the slide shutter 133. 12 (a) is a front view, FIG. 12 (b) is a side view, and FIG. 12 (c) is a bottom view. Three openings 142 to 144 that allow the steam outlets of the steam supply passages 23A1 to 23A3 of the dish-shaped case 51 to communicate with the recesses 51a of the dish-shaped case 51 are formed on the side surface 141 of the slide shutter 133 that faces the side wall 131 of the dish-shaped case 51. Is provided. Furthermore, a plurality of openings (holes) that allow a plurality of ceiling steam outlets 55 provided in the ceiling panel 54 to communicate with the recesses 51 a of the dish-shaped case 51 on the bottom surface 145 of the slide shutter 133 facing the ceiling panel 54 of the heating chamber 20. 146 is provided. The openings 142 to 144 and the hole 146 are arranged so that the ceiling steam outlet 55 is also closed when the steam supply passages 23A1 to 23A3 are closed.

  Accordingly, by sliding the slide shutter 133 by a distance slightly larger than the diameter of the openings 142 to 144 as described above, the steam supply passages 23A1 to 23A3 are closed, and at the same time, the ceiling steam outlet on one side of the ceiling panel 54 is closed. 55 can be closed. Since the configuration of the slide shutter 134 is the same as that of the slide shutter 133, description thereof is omitted.

  As described above, in the present embodiment, steam supply is performed by sliding the slide shutters 133 and 134 along the side walls 131 and 132 by the stepping motor mounted on the top plate of the dish-shaped case 51. Superheated steam ejected from the side steam outlets 22 on both sides of the heating chamber 20 through the passages 23A1 to 23A3, 23B1 to 23B3, and superheated steam ejected from the ceiling steam outlets 55 on both sides of the ceiling panel 54 Can be stopped. In this way, superheated steam can be intensively sprayed onto the object to be heated 90 placed at the approximate center of the rack 24 in the heating chamber 20 only from the ceiling steam outlet 55 at the center of the ceiling panel 54. Therefore, even when the object to be heated 90 is small, it can be rapidly heated in a short time.

  In the present embodiment, the superheated steam ejected from the side surface steam outlet 22 and the ceiling steam outlet 55 is stopped by the slide shutters 133 and 134. However, it goes without saying that a rotary shutter as shown in FIG. 10 can be used.

  Further, in each of the above embodiments, the superheated steam distribution switching device used when switching between the two-stage heating cooking and the one-stage heating cooking, and the superheated steam distribution switching used when switching between the normal heating cooking and the local heating cooking. The apparatus includes a shutter provided in the dish-shaped case 51. However, the present invention is not limited to this, and can also be configured to include a dedicated damper provided in each steam supply passage 23 and a control means for controlling the opening and closing of the damper.

  Further, in each of the above embodiments, the superheated steam distribution switching device used when switching between the two-stage heating cooking and the one-stage heating cooking, and the superheated steam distribution switching device used when switching between the normal heating cooking and the local heating cooking. Are composed of different slide shutters 110 and 111 and slide shutters 133 and 134, respectively, but it is also possible to switch the slide shutters according to the slide direction using the same slide shutter. This corresponds to the case where one-stage heating cooking is performed using the upper heating chamber 108 shown in FIGS.

  In this case, in the slide shutter 110 shown in FIG. 8, first, the steam outlets of the steam supply passages 23 </ b> A <b> 1 to 23 </ b> A <b> 4 in the dish-shaped case 51 are provided on the side surface 118 facing the side wall 92 of the dish-shaped case 51. Four openings are provided to communicate with the recess 51a. Then, the two openings for communicating the steam outlets of the steam supply passages 23A2 and 23A3 with the recess 51a of the dish-shaped case 51 are expanded in one direction in the front-rear direction of the slide shutter 133 to form a race track. Further, on the bottom surface of the slide shutter 110 facing the ceiling panel 54 of the heating chamber 20, a plurality of holes for communicating the plurality of ceiling steam outlets 55 provided on the ceiling panel 54 with the recesses 51 a of the dish-shaped case 51 are provided. The four openings and the plurality of holes are arranged so that the ceiling steam outlet 55 is also closed when the steam supply passages 23A1 to 23A4 are closed.

  In this way, when the slide shutter 110 is positioned at the intermediate position, the steam outlets of the steam supply passages 23A1 to 23A4 in the dish-shaped case 51 are communicated with the recess 51a of the dish-shaped case 51, and two-stage heating is performed. Cooking becomes possible. Further, when the slide shutter 110 is slid from the intermediate position in the one direction by a distance slightly larger than the diameter of the opening, all the steam outlets of the steam supply passages 23A1 to 23A4 in the dish-shaped case 51 are closed. At the same time, the ceiling steam outlet 55 on one side of the ceiling panel 54 is also closed, and local heating cooking is possible for an object to be heated placed in the center of the upper heating chamber 108. Further, when the slide shutter 110 is slid from the intermediate position in the direction opposite to the one direction, the steam supply passages 23A2 and 23A3 are not closed because the two openings at the center are in a racetrack shape. In addition, only the steam supply passages 23A1 and 23A4 are closed, and one-stage heating cooking using the upper heating chamber 108 becomes possible.

  The slide shutter 111 has the same configuration as that of the slide shutter 110.

It is an external appearance perspective view in the heating cooker of this invention. It is an external appearance perspective view of the state which opened the door of the heating cooker shown in FIG. It is a schematic block diagram of the heating cooker shown in FIG. It is a control block diagram of the heating cooker shown in FIG. It is a front view of the steam temperature rising apparatus and heating chamber which can perform two-stage heating cooking. It is a side view of the steam temperature rising apparatus and the heating chamber shown in FIG. It is a top view of the steam temperature rising apparatus and heating chamber shown in FIG. It is a top view of the distribution switching apparatus of superheated steam. It is a figure which shows the structure of the slide shutter in FIG. It is a figure which shows the structure of the distribution switching apparatus of the superheated steam different from FIG. It is a top view of the distribution switching apparatus of superheated steam different from FIG. 8 and FIG. It is a figure which shows the structure of the slide shutter in FIG.

1 ... Heat cooker,
20 ... heating chamber,
23A1 to 23A4, 23B1 to 23B4 ... steam supply passage,
28 ... Blower fan,
30 ... Water tank,
40 ... steam generator,
44 ... Vapor suction ejector,
50 ... Steam temperature raising device,
51 ... Dish-shaped case,
52 ... 1st steam heater,
53. Second steam heater,
54 ... Ceiling panel,
55 ... Ceiling steam outlet,
60 ... External circuit,
65 ... exhaust duct,
80 ... control device,
101, 104 ... upper steam outlet,
102,105 ... lower first steam outlet,
103,106 ... lower second steam outlet,
107 ... saucer,
108 ... upper heating chamber,
109 ... lower heating chamber,
110, 111, 133, 134 ... slide shutter,
112, 123, 135 ... rotating shaft,
113,136 ... rotating arm,
114,115,137,138 ... rollers,
116, 117, 139, 140 ... guide grooves,
119, 120, 142 to 144, 146 ... Slide shutter opening,
121 ... Rotating shutter,
124 ... Stepping motor,
125,126 ... closure part,
127,128 ... Open part (notch part),
145 ... Bottom of slide shutter.

Claims (7)

A steam generator for generating steam;
A steam temperature raising device for raising the temperature of the steam from the steam generator;
A heating chamber for heating an object to be heated by steam supplied from the steam heating device;
A steam outlet provided on both side walls of the heating chamber, and having a steam outlet for blowing steam supplied from the steam temperature raising device toward the heating chamber;
A steam supply passage for supplying steam from the steam temperature raising device to the steam outlet,
The steam heating device is configured such that the air in the heating chamber sucked from the suction port is circulated by a circulation path,
The steam outlet is provided in two stages in the vertical direction on both side walls of the heating chamber,
A plurality of the steam supply passages are provided corresponding to the upper steam outlet provided in the upper stage and the lower steam outlet provided in the lower stage, and the upper steam outlet and the lower steam outlet are provided. It is designed to supply steam independently,
A partition member that partitions the heating chamber into an upper heating chamber in which steam is blown from the upper steam blowing portion and a lower heating chamber in which steam is blown from the lower steam blowing portion ;
An opening / closing device that opens and closes only one of the steam supply passage for supplying steam to the upper steam outlet and the steam supply passage for supplying steam to the lower steam outlet. A heating cooker. The heating cooker according to claim 1, wherein
While the upper steam blowing part is provided in the central part in the front-rear direction of the heating chamber,
The lower steam outlet is disposed at least in the front part and the rear part in the front-rear direction of the heating chamber,
The steam cooker, wherein steam outlets located at the front and rear of the lower steam outlet are configured to blow steam toward the center of the heating chamber. The heating cooker according to claim 1, wherein
The cooking device according to claim 1, wherein a thickness of the steam supply passage for supplying steam to the lower steam blowing portion is larger than a thickness of the steam supply passage for supplying steam to the upper steam blowing portion. The cooking device according to claim 2,
The lower steam outlet includes two lower steam outlets independent of each other, a lower first steam outlet provided at the front of the heating chamber and a lower second steam outlet provided at the rear of the heating chamber. Consists of
A plurality of the steam supply passages are provided corresponding to the lower first steam outlet and the lower second steam outlet, and are independent of the lower first steam outlet and the lower second steam outlet. A cooking device characterized in that steam is supplied. The heating cooker according to claim 1 , wherein
The steam temperature raising device includes a temperature raising chamber having a bottomed cylindrical shape,
The opening / closing device is a rotary shutter that opens and closes a steam outlet to the steam supply passage provided in the temperature raising chamber by rotating in sliding contact with a cylindrical inner wall in the temperature raising chamber. Cooking cooker. The heating cooker according to claim 1 , wherein
The steam temperature raising device is placed on the heating chamber,
An area under the steam temperature raising device in the ceiling panel of the heating chamber is provided with a ceiling steam outlet for blowing steam from the steam temperature raising device into the heating chamber,
The cooking apparatus according to claim 1, wherein the opening / closing device is capable of opening and closing the steam supply passage for supplying steam to all of the upper steam blowing section and the lower steam blowing section. The heating cooker according to claim 6 , wherein
The opening / closing device is a slide shutter that opens and closes a steam outlet to the steam supply passage provided in the temperature raising chamber by sliding in sliding contact with an inner wall of the temperature raising chamber in the steam temperature raising device,
When the steam supply passage for supplying steam to all of the upper steam blowing portion and the lower steam blowing portion is closed, the slide shutter is a ceiling steam located in the vicinity of the steam supply passage in the ceiling panel. A cooking device characterized in that the blower outlet is also closed.

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