JP2010038374A - Cooking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooking device capable of reducing costs in regard to a cooking device carrying out cooking by steam. <P>SOLUTION: The cooking device includes a heating chamber 2 housing a cooking item, a detachable water supply tank 7, a water level detection chamber 53 connected to the water supply tank 7 via a water supply opening 53a, an evaporation container 54 formed integrally with the water level detection chamber 53 via a partition wall 59 and communicated with the water level detection chamber 53 via a communication opening 59a provided in the partition wall 59 lower than the water supply opening 53a, a steam generating heater 55 heating water in the evaporation container 54 to generate steam, an opening and closing valve 60 opening and closing the communication hole 59a, a first water level sensor 61 detecting a water level in the water level detection chamber 53, and a second water level sensor 62 detecting a water level in the evaporation container 54. Steam generated by driving of the steam generating heater 55 is supplied to the heating chamber 2 to carry out cooking of the cooking item. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  A conventional cooking device is disclosed in Patent Document 1. This heating cooker is provided with a steam generator for supplying steam to a heating chamber for storing cooked food. In the steam generating device, a steam generating heater is immersed in an evaporation container supplied by a water supply pump, and water in the evaporation container is evaporated by the heat generated by the steam generating heater to generate steam.

  The evaporation container is supplied with water by a water supply pump from a water level detection chamber connected to a detachable water supply tank via a water supply port. The water level detection chamber communicates with the water supply tank through the water supply port and is maintained at the same water level as the water supply tank. A water level sensor is provided in the water level detection chamber. The water level in the water level detection chamber at the same level as the water supply tank can be detected by the water level sensor, and it can be determined whether or not there is an amount of water that the water supply tank can cook.

JP 2008-14554 A (page 4 to page 12, FIG. 8)

  However, according to the above-described conventional cooking device, water is supplied from the water level detection chamber into the evaporation container by the water supply pump, so that the structure is complicated and a large amount of electric power is required to drive the water supply pump. Moreover, it is necessary to provide a drain valve for draining water remaining at the end of cooking in each of the evaporation container and the water level detection chamber, which increases the number of parts. Therefore, there is a problem that the cost of the cooking device increases.

  An object of this invention is to provide the heating cooker which can reduce cost.

  In order to achieve the above object, the present invention provides a heating chamber for storing cooked food, a detachable water supply tank, a water level detection chamber to which the water supply tank is connected via a water supply port, and a partition between the water level detection chamber and the water level detection chamber. An evaporation container that is integrally formed through a wall and communicates with the water level detection chamber through a communication port provided in the partition wall below the water supply port; A steam generating heater for generating a gas, an on-off valve for opening and closing the communication port, a first water level sensor for detecting the water level in the water level detection chamber, and a second water level sensor for detecting the water level in the evaporation container, The steam generated by driving the steam generating heater is supplied to the heating chamber to cook the food.

  According to this configuration, when the water supply tank is attached, water is supplied to the water level detection chamber via the water supply port, and the water supply tank and the water level detection chamber are at the same water level. The water level in the water level detection chamber is detected by the first water level sensor, and it is determined whether there is a sufficient amount of water in the water supply tank for cooking. If there is not enough water in the water tank for cooking, cooking will not start. The water level detection chamber and the evaporation container are integrally formed of a heat-resistant resin or the like and partitioned by a partition wall. When the communication port provided in the partition wall below the water supply port is opened by the opening / closing valve, the water in the water level detection chamber flows into the evaporation container by its own weight from the communication port. When the evaporation container reaches a predetermined water level as detected by the second water level sensor, the on-off valve is closed. When the steam generating heater is driven, the steam generated by the evaporation of water in the evaporation container is supplied to the heating chamber, and the cooked food is cooked. The water level in the evaporation container is monitored by the second water level sensor. When the water level is lower than the predetermined water level, the water is supplied by opening the on-off valve.

  According to the present invention, in the cooking device configured as described above, a drive shaft connected to the on-off valve and extending vertically in the water level detection chamber, and disposed above the water level detection chamber and the drive shaft. And a drive device that opens and closes the on-off valve via the drive shaft, and the upper end of the water level detection chamber is provided above the upper wall of the evaporation container.

  According to this configuration, the drive shaft is connected to the on-off valve that closes the communication port. The drive shaft extends vertically in the water level detection chamber and is connected to a drive device disposed above the water level detection chamber. By driving the drive device, the drive shaft moves up and down, for example, and the on-off valve is opened and closed. The upper end of the water level detection chamber is provided above the upper wall of the evaporation container, and the drive device is disposed away from the evaporation container.

  Moreover, the present invention is characterized in that, in the cooking device having the above-described configuration, the partition wall has a horizontal portion extending horizontally, and the communication port is formed in the horizontal portion. According to this configuration, the open / close valve moves up and down by the drive shaft that moves up and down, and the communication port is opened and closed.

  Moreover, the present invention is characterized in that, in the cooking device having the above-described configuration, the drive shaft is inserted into the communication port, and the on-off valve is disposed below the horizontal portion. According to this configuration, when the drive shaft is raised, the lower surface of the communication port is closed by the on-off valve, and when the drive shaft is lowered, the on-off valve is separated from the lower surface of the communication port.

  Moreover, the present invention is characterized in that, in the cooking device having the above-described configuration, a drainage channel is led out to the bottom of the evaporation container. According to this configuration, when the on-off valve is opened when draining the water remaining in the evaporation container, the water in the water level detection chamber flows into the evaporation container from the communication port and is drained from the drainage channel.

  According to the present invention, in the cooking device configured as described above, when the water supply tank is mounted, the on-off valve is opened, and when the second water level sensor detects that the evaporation container has reached a predetermined water level, the on-off valve is opened. The steam generating heater is driven when an instruction to start cooking is closed.

  According to this configuration, when the water supply tank is mounted, water is supplied to the water level detection chamber through the water supply port, and the open / close valve is opened to supply water into the evaporation container through the communication port. When the predetermined water level of the evaporation container is detected by the second water level sensor, the on-off valve is closed. When the start of cooking is instructed, the steam generating heater is driven, and steam is generated by water in the evaporation container and supplied to the heating chamber. Thereby, cooking can be started quickly.

  According to the present invention, the evaporation container is formed integrally with the water level detection chamber via the partition wall, and communicates with the water level detection chamber via the communication port provided in the partition wall below the water supply port, so the structure is simplified. In addition, water can be supplied to the evaporation container without requiring a water supply pump. Further, the number of parts can be reduced by simply providing a drain valve for draining water remaining at the end of cooking in one of the evaporation container and the water level detection chamber. Therefore, the cost of the cooking device can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings. Drawing 1 is a lineblock diagram showing the cooking-by-heating machine of one embodiment. The heating chamber 2 has a heating chamber 2 opened at the front and opened and closed by a door (not shown). A placement tray 9 is disposed in the heating chamber 2, and the food W is placed and stored on a placement net 9 a on the placement tray 9.

  A circulation duct 10 along the wall surface is provided outside the heating chamber 2. The circulation duct 10 is formed by sequentially connecting a right side surface portion 11, a top surface top surface portion 12, and a left side surface portion 13. An air inlet 10a facing the heating chamber 2 opens in the side surface portion 11 at a substantially center in the front-rear direction, and jet ports 10b and 10c facing the heating chamber 2 open in the top surface portion 12 and the side surface portion 13.

  In addition, an air supply port 33 is opened below the intake port 10 a and a first exhaust port 34 is opened above the right side wall of the heating chamber 2. The air supply port 33 is arranged in the vicinity of the door, and the airflow blown from the air supply port 33 circulates along the door. A second exhaust port 35 is opened below the air supply port 33. The second exhaust port 35 has a smaller opening area than the first exhaust port 34.

  A circulation fan 14 is disposed on the side surface portion 11. By driving the circulation fan 14, steam or air in the heating chamber 2 is sucked into the circulation duct 10 from the intake port 10a and blown out from the ejection ports 10b and 10c. The side surface portion 11 is provided with a temperature sensor (not shown), and the temperature of the steam or air in the heating chamber 2 flowing into the side surface portion 11 is detected.

  A heater 15 such as a sheathed heater is disposed on the top surface portion 12. The cooked food is heated by the radiant heat of the heater 15. Moreover, the steam and air which circulate through the circulation duct 10 are heated by the heater 15, and the heated steam and air are blown out from the ejection ports 10b and 10c. Thereby, the vapor | steam and air in the heating chamber 2 are maintained at predetermined temperature. Moreover, the temperature of the steam supplied to the heating chamber 2 can be further increased to generate superheated steam.

  A detachable water supply tank 7 is disposed on the right side of the heating chamber 2. A steam generator 5 is provided behind the water supply tank 7. The steam generator 5 has an evaporation container 54 connected to the water supply tank 7 through a water level detection chamber 53 as will be described in detail later. Steam is generated by heating a steam generating heater 55 disposed in the evaporation container 54.

  A drainage channel 57 is led out to the evaporation container 54 through a drainage valve 56. By opening the drain valve 56, the water remaining in the evaporation container 54 is drained to the drain tray 58 disposed below the heating chamber 2.

  A steam duct 6 is led out above the steam generator 5 and connected to the side surface portion 11 of the circulation duct 10. The steam generated by the steam generator 5 flows through the steam duct 6 and flows into the side surface portion 11 of the circulation duct 10 through the inlet 6a. The inflow port 6 a is disposed on the upstream side of the circulation fan 14, and the backflow of the steam in the steam duct 6 due to the driving of the circulation fan 14 is avoided.

  A first exhaust duct 36 that extends horizontally from the first exhaust port 34 and bends upward is led out to the right side wall of the heating chamber 2. The first exhaust duct 36 is provided with an exhaust damper 37 for opening and closing the flow path, and an open end air outlet 36a is disposed above the main body casing. In the middle of the path of the first exhaust duct 36, a suction duct 38 for sucking outside air is connected via a suction port 38a.

  A second exhaust duct 41 led out from the second exhaust port 35 is connected to the upstream side of the suction port 38a of the first exhaust duct 36 by a connecting portion 41a. The second exhaust duct 41 may be formed of a flexible tube. Further, a humidity sensor (not shown) is provided on the upstream side of the connecting portion 41a in the first exhaust duct 36.

  The second exhaust duct 41 is formed to have a smaller flow area than the first exhaust duct 36. Exhaust gas from the second exhaust port 35 flows through the second exhaust duct 41, flows into the first exhaust duct via the connecting portion 41a, and is discharged to the outside from the outlet 36a.

  On the side of the heating chamber 2 is provided a blower duct 30 with a dilution fan 31 disposed in the lower part. The air duct 30 is formed to extend upward on the exhaust side of the dilution fan 31 and has a nozzle portion 30c at an open end. The nozzle portion 30c is inserted into the first exhaust duct 36 and opens upward.

  As a result, an ejector is formed in the first exhaust duct 36, and an airflow is generated from the first exhaust port 34 toward the open end (blower port 36 a) by driving the dilution fan 31. At this time, the connecting portion 41a and the suction port 38a are arranged on the upstream side of the nozzle portion 30c. Thereby, since a negative pressure is applied to the second exhaust duct 41 and the suction duct 38, the backflow of the airflow can be prevented.

  An air supply tube 32 connected to an air supply port 33 is branched from the air duct 30. The air supply tube 32 is provided with an air supply damper 51 that opens and closes the flow path. A magnetron (not shown) for supplying microwaves is provided below the heating chamber 2.

  FIG. 2 is a side sectional view showing details of the steam generator 5 and the water supply tank 7. An outlet 7a is opened at the lower part of the water supply tank 7, and a connecting pipe 7b is projected from the outlet 7a. A water stop valve 52 is provided at the outflow port 7a. The water stop valve 52 is urged by the compression spring 52a in a direction to close the outlet 7a. When the tip of the water stop valve 52 is pressed against the urging force of the compression spring 52a, the outlet 7a is opened.

  The steam generator 5 has an evaporation container 54 and a water level detection chamber 53 that are integrally formed of a heat resistant resin or the like. The water level detection chamber 53 is formed in an arch shape in plan view, and its upper end is disposed above the upper wall 54 a that covers the evaporation container 54. The vapor duct 6 is led upward from the upper wall 54a of the evaporation container 54. The evaporation container 54 and the water level detection chamber 53 are partitioned by a partition wall 59, and the partition wall 50 has a horizontal portion 59b that is horizontally disposed and a vertical portion 59c that extends substantially vertically.

  The steam generating heater 55 is a planar coiled sheathed heater and is disposed at the bottom of the evaporation container 54. A temperature sensor 63 for detecting abnormal heating of the steam generating heater 55 is provided on the upper wall 54 a of the evaporation container 54. The periphery of the steam generating heater 55 is covered with a shielding plate 64 (see FIG. 3) made of an annular metal plate. The shielding plate 64 suppresses the backflow of the communication port 59a due to the temperature rise of the on-off valve 60 described later and the sudden boiling of the heated water.

  On the side wall of the water level detection unit 53, a water supply port 53 a that fits with the connection portion 7 b of the water supply tank 7 is provided. A protrusion 53b extending horizontally from the side wall of the water level detection unit 53 is provided in the water supply port 53a. The water supply tank 7 is mounted by inserting the connecting portion 7b into the water supply port 53a. At this time, the protrusion 53 b presses the tip of the water stop valve 52 and water is supplied into the water level detection chamber 53 from the outlet 7 a of the water supply tank 7. The water level in the water level detection chamber 53 is detected by the first water level sensor 61.

  The horizontal portion 59b of the partition wall 59 is disposed below the water supply port 53a, and the communication port 59a is opened. The communication port 59a is opened and closed by an on-off valve 60. When the on-off valve 60 is opened, the water level detection chamber 53 and the evaporation container 54 communicate with each other. Thereby, water flows into the evaporation container 54 from the water level detection chamber 53 by its own weight. The water level of the evaporation container 54 is detected by the second water level sensor 62.

  The on-off valve 60 is opened and closed by a driving device 70 via a driving shaft 65 extending vertically in the water level detection chamber 53. The driving device 70 is disposed above the water level detection chamber 53. FIG. 3 is a side sectional view showing details of the on-off valve 60.

  The on-off valve 60 is disposed below the horizontal portion 59b, and an annular packing 60a is provided on the upper surface. The packing 60a is in close contact with the lower surface of the horizontal portion 59b, and the communication port 59a is closed in a watertight manner. The drive shaft 65 is attached to the on-off valve 60 at the lower end and is inserted into the communication port 59a.

  FIG. 4 is a side view showing details of the driving device 70. In the driving device 70, the shaft 75 is held at an angle 73 installed above the water level detection chamber 53, and the shaft 75 is fitted into a fitting hole 72 b provided in the lever member 72. Thereby, the lever member 72 is rotatably supported. The lever member 72 is formed in a substantially L shape, and one end provided with the latching groove 72 a is urged upward by the compression spring 76. The upper end of the drive shaft 65 is latched in the latching groove 72a. Thereby, the drive shaft 65 is pulled upward by the lever member 72, and the on-off valve 60 closes the communication port 59a.

  A long hole 72c is formed below the fitting hole 72b of the lever member 72, and an engagement pin 74 is fitted into the long hole 72c. The engagement pin 74 is moved in the left-right direction in the figure by an electromagnetic valve (not shown). Accordingly, as shown in FIG. 5, when the lever member 72 is rotated against the urging force of the compression spring 76, the drive shaft 65 is lowered together with the on-off valve 60. As a result, the communication port 59a is opened as shown in FIG.

  In the cooking device configured as described above, when cooking by microwaves is started, a magnetron (not shown) is driven. Further, the supply damper 51 and the exhaust damper 37 are opened, and the dilution fan 31 is driven. A microwave is supplied into the heating chamber 2 by the magnetron, and the cooked product is microwave-heated.

  The dilution fan 31 sends out the outside air, and the outside air flowing through the air supply tube 32 is supplied from the air supply port 33 to the heating chamber 2 as indicated by an arrow A1 (see FIG. 1). At this time, the airflow blown out from the air supply port 33 arranged near the door flows along the door. Thereby, dew condensation of a door can be prevented.

  Further, outside air is supplied to the first exhaust duct 36 through the nozzle portion 30c of the air duct 30 as indicated by an arrow A2 (see FIG. 1). Since the nozzle portion 30c of the air duct 30 forms an ejector, a negative pressure is applied to the suction duct 38. Thus, outside air is also supplied from the suction duct 38 to the first exhaust duct 36 as indicated by an arrow A4.

  The air in the heating chamber 2 is exhausted from the first and second exhaust ports 34 and 35. Exhaust gas from the second exhaust port 35 flows through the second exhaust duct 41 as indicated by an arrow A3, and is guided to the first exhaust duct 36 via the connecting portion 41a.

  The exhaust from the first exhaust port 34 is in contact with a humidity sensor (not shown). Thereby, the humidity in the heating chamber 2 is detected. The exhaust passing through the first exhaust duct 36 joins the exhaust of the second exhaust duct 41 and rises, and is discharged to the outside from the outlet 36a as indicated by an arrow A5 (see FIG. 1). At this time, since an ejector is formed by the nozzle portion 30c, a negative pressure is applied to the second exhaust duct 41, the first exhaust port 34, and the suction duct 38, and the backflow of the exhaust can be prevented.

  When steam is generated from the food by microwave heating and the inside of the heating chamber 2 reaches a predetermined humidity, the end time of cooking is determined by detection of the humidity sensor. Thereby, cooking by a microwave is complete | finished.

  When cooking with steam, a supplied water supply pump 7 is attached. Water in the water supply pump 7 flows into the water level detection chamber 53 through the water supply port 53a from the outlet 7b opened by the water stop valve 52. At this time, the water level detection chamber 53 is at the same water level as the water supply pump 7, and the water level is detected by the first water level sensor 61. When the amount of water is insufficient for cooking due to the detected water level of the first water level sensor 61, a notification is given and cooking cannot be started.

  When there is a sufficient amount of water required for cooking as detected by the first water level sensor 61, the opening / closing valve 60 is opened by the driving device 70. Thereby, water is supplied from the water level detection chamber 53 to the evaporation container 54 through the communication port 59a. The water level in the evaporation container 54 is detected by the second water level sensor 62, and when the water level reaches a predetermined level, the on-off valve 60 is closed.

  When there is an instruction to start cooking, the supply damper 51 and the exhaust damper 37 are closed, and the steam generator 5 and the heater 15 are driven. Thereby, steam is supplied into the circulation duct 10, and superheated steam is generated by the heating of the heater 15. Further, the dilution fan 31 and the circulation fan 14 are driven. As the dilution fan 31 is driven, outside air is supplied to the first exhaust duct 36 through the nozzle portion 30c of the air duct 30 as indicated by an arrow A2 (see FIG. 1).

  As the circulation fan 14 is driven, the steam in the heating chamber 2 flows into the circulation duct 10 from the intake port 10a as shown by an arrow C1 (see FIG. 1). The steam flowing into the circulation duct 10 flows through the circulation duct as shown by an arrow C2 (see FIG. 1), and blows out into the heating chamber 2 from the outlets 10b and 10c as shown by arrows C3 and C4 (see FIG. 1). Is done.

  Thereby, the steam in the heating chamber 2 circulates through the circulation duct 10. The steam flowing through the circulation duct 10 is heated by the heater 15, and the steam is maintained at a predetermined temperature for cooking. The water level of the evaporation container 54 is monitored by the second water level sensor 62, and water is supplied by opening the on-off valve 60 when it becomes lower than the predetermined water level. Note that cooking with saturated steam may be performed by adjusting the temperature and driving time of the heater 15.

  By supplying steam from the steam generator 5 into the heating chamber 2, the steam flows out from the heating chamber 2 through the second exhaust port 35 as indicated by an arrow A <b> 3 (see FIG. 1). Thereby, the internal pressure of the heating chamber 2 is kept constant. Since the flow passage area of the second exhaust duct 41 is narrower than that of the first exhaust duct 36, the amount of outflow of steam is small, and a reduction in heating efficiency can be prevented.

  Exhaust gas from the second exhaust port 35 flows through the second exhaust duct 41 and is guided to the first exhaust duct 36 via the connecting portion 41a. Since the outside air is supplied to the first exhaust duct 36 by the dilution fan 31, the exhaust from the second exhaust port 35 is diluted and released to the outside. Thereby, steam falls and is discharged | emitted and the safety | security of the heating cooker 1 can be improved.

  Further, since the humidity sensor is arranged on the upstream side of the connecting portion 41 a of the second exhaust duct 41, contact between the steam flowing into the first exhaust duct 36 from the second exhaust duct 41 and the humidity sensor 39 can be reduced. Thereby, the condensation of a humidity sensor can be reduced and the next cooking by a microwave can be performed favorably.

  When the outside air flows into the first exhaust duct 36 from the nozzle portion 30c, negative pressure by the ejector is applied to the suction duct 38. Therefore, outside air is taken into the first exhaust damper 36 from the suction port 38a as indicated by an arrow A4 (see FIG. 1). Thereby, the exhaust from the second exhaust port 35 can be further diluted.

  When cooking is finished and the predetermined time has elapsed or the heating cooker 1 is turned off, the on-off valve 60 and the drain valve 56 are opened. As a result, water remaining in the water supply tank 7, the water level detection chamber 53 and the evaporation container 55 is drained to the drain tray 58.

  According to the present embodiment, the evaporation container 54 is formed integrally with the water level detection chamber 53 via the partition wall 59, and enters the water level detection chamber 53 via the communication port 59a provided in the partition wall 59 below the water supply port 53a. Since it communicates, the structure is simplified and water can be supplied to the evaporation container 54 without requiring a water supply pump. In addition, the number of components can be reduced by simply providing the evaporating container 54 with a drain valve 56 for draining water remaining at the end of cooking. Therefore, the cost of the heating cooker 1 can be reduced.

  In addition, since the drive device 70 that opens and closes the on-off valve 60 via the drive shaft 65 extending vertically in the water level detection chamber 53 is provided above the water level detection chamber 53, the drive device 70 is the steam generating heater 55 of the evaporation container 54. Located away from. Therefore, it is possible to reduce the failure by suppressing the heating of the driving device 70.

  Further, since the communication port 59a is formed in the horizontal portion 59b of the partition wall 59, the opening / closing mechanism of the opening / closing valve 60 can be easily realized by moving the drive shaft 65 extending vertically.

  Further, since the drive shaft 65 is inserted into the communication port 59a and the on-off valve 60 is arranged below the horizontal portion 59b, the inclination of the drive shaft 65 that is long in the vertical direction is regulated by the communication port 59a, and the communication port 59a is reliably closed. be able to.

  Further, since the drainage channel 57 is led out to the bottom of the evaporation container 54, the water remaining in the water level detection chamber 53 can be drained reliably.

  Further, when the water supply tank 7 is attached, the on-off valve 60 is opened to close the on-off valve 60 when the evaporation container 54 reaches a predetermined water level, and when there is an instruction to start cooking, the steam generating heater 55 is driven. Cooking can be started quickly later.

  According to this invention, it can utilize for the heating cooker which cooks with steam.

The block diagram which shows the heating cooker of embodiment of this invention Side surface sectional drawing which shows the water supply tank and steam generator of the heating cooker of embodiment of this invention The principal part detail figure which shows the closed state of the on-off valve of the heating cooker of embodiment of this invention The principal part detail drawing which shows the state which closed the on-off valve of the drive device of the heating cooker of embodiment of this invention The principal part detail figure which shows the state which opened the on-off valve of the drive device of the heating cooker of embodiment of this invention The principal part detail figure which shows the open state of the on-off valve of the heating cooker of embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating cooker 2 Heating chamber 5 Steam generator 6 Steam duct 7 Water supply tank 10 Circulation duct 10a Intake port 10b, 10c Outlet 11, 13 Side surface part 12 Top surface part 14 Circulation fan 15 Heating heater 30 Blower duct 30c Nozzle part 31 Dilution Fan 32 Air supply tube 33 Air supply port 34 First exhaust port 35 Second exhaust port 36 First exhaust duct 37 Exhaust damper 38 Suction duct 38a Suction port 41 Second exhaust duct 41a Connecting portion 51 Supply air damper 52 Water stop valve 53 Water level detection chamber 53a Water supply port 54 Evaporating container 55 Steam generating heater 56 Drain valve 57 Drain channel 58 Drain tray 59 Partition wall 59a Communication port 60 Opening / closing valve 60a Packing 61 First water level sensor 62 Second water level sensor 63 Temperature sensor 65 Drive shaft 70 Drive device 72 Lever member 73 Angle 4 engaging pin 75 shaft

Claims (6)

  A heating chamber for storing the cooked food, a detachable water supply tank, a water level detection chamber to which the water supply tank is connected via a water supply port, and the water level detection chamber and the partition wall are integrally formed and An evaporation container that communicates with the water level detection chamber via a communication port provided in the partition wall below the water supply port, a steam generation heater that generates steam by heating water in the evaporation container, and the communication port An open / close valve for opening and closing, a first water level sensor for detecting the water level in the water level detection chamber, and a second water level sensor for detecting the water level in the evaporation container, and generating steam generated by driving the steam generating heater. A heating cooker that is supplied to the heating chamber to cook a cooked product.   A drive shaft connected to the on-off valve and extending vertically in the water level detection chamber, and an on-off valve arranged above the water level detection chamber and connected to the drive shaft via the drive shaft The cooking device according to claim 1, further comprising: a driving device that opens and closes the water level detection chamber, wherein an upper end of the water level detection chamber is provided above an upper wall of the evaporation container.   The cooking device according to claim 2, wherein the partition wall has a horizontal portion extending horizontally, and the communication port is formed in the horizontal portion.   The cooking device according to claim 3, wherein the drive shaft is inserted into the communication port, and the on-off valve is arranged below the horizontal portion.   The cooking device according to claim 3 or 4, wherein a drainage channel is led out to a bottom of the evaporation container.   When the water supply tank is installed, the on-off valve is opened, and when the second water level sensor detects that the evaporation container has reached a predetermined water level, the on-off valve is closed. The cooking device according to any one of claims 1 to 5, wherein the cooking device is driven.

Images