JP6629151B2 - Cooking device - Google Patents

Description

  The present invention relates to a heating cooker such as a steam convection oven, and more particularly to a heating cooker provided with a combustion device for heating the inside of a cooking cabinet with a combustion gas obtained by burning a mixed gas.

  Patent Literature 1 below discloses a cooking device that heats and cooks food with hot air containing steam. This cooking device excludes a cooking cabinet provided in a housing and a cooking cabinet in the housing. A combustion chamber that heats the inside of the cooking cabinet with combustion gas, a convection fan that convects air in the cooking cabinet, and a steam generator that supplies steam into the cooking cabinet. In this heating cooker, the steam generated by the operation of the steam generator is supplied to the hot air generated by the operation of the combustion device and the convection fan in the cooking chamber, and the food in the cooking chamber is cooked by the hot air containing the steam. You.

  The combustion device of the heating cooker heats the inside of the cooking cabinet with the combustion gas obtained by burning the mixed gas. This combustion device is a blower fan that sends out combustion air, a gas supply pipe that sends out fuel gas, and the combustion air sent out by the blower fan and the fuel gas that is sent out by the gas supply pipe flow in as a mixed gas. A mixing pipe, a burner that burns a mixed gas in the mixing pipe to generate a combustion gas, and a heating pipe that allows the combustion gas to pass therethrough, except for a burner and a heating pipe disposed in a cooking cabinet, and Located in the room. In addition, an inverter circuit for variably controlling the air volume of the blower fan is provided in the machine room, and the output (thermal power) of the combustion device can be adjusted by the air volume of the blower fan adjusted by the inverter circuit.

JP 2013-200111 A

  In the heating cooker described in Patent Document 1 described above, the temperature inside the machine room is likely to be high due to the heat generated by the inverter circuit and the effect of the combustion of the burner of the combustion device, which may exceed the usable temperature range of the inverter circuit. Was. Therefore, unless the inside of the machine room is appropriately exhausted, the inverter circuit cannot be normally operated, and there is a possibility that the inside of the cooking cabinet cannot be appropriately heated by the combustion device. An object of the present invention is to prevent an inverter circuit in a machine room from being unable to operate normally due to heat in a heating cooker that heats the inside of a cooking cabinet with combustion gas.

  In order to solve the above problems, the present invention provides a cooking cabinet provided in a housing, a machine room provided in a space excluding the cooking cabinet in the housing, and a combustion device for heating the inside of the cooking cabinet with a combustion gas, A heating cooker provided in a machine room and having a control device for controlling operation of a combustion device, wherein the combustion device includes a blower fan that sends out combustion air, a gas supply pipe that sends out fuel gas, and a combustion device. A mixing pipe for flowing the working air and the fuel gas and mixing them as a mixed gas, and a burner for burning the mixed gas in the mixing pipe to generate a combustion gas, and the combustion gas generated by the burner is supplied to the cooking chamber. The control device controls the output of the blower fan, thereby controlling the output of the combustion gas by the combustion device. Provides a heating cooker characterized in that an air intake for taking in air taken in by a blower fan into a machine room is formed, and an inverter circuit is arranged in an air passage through which air is guided from the air intake to the blower fan. Is what you do.

  In the cooking device configured as described above, an air intake is formed at the bottom of the machine room to take in air blown by the blower fan into the machine room, and air is introduced from the air intake to the blower fan. Since the inverter circuit is located in the passage, the inverter circuit is cooled by air guided from the air intake to the blower fan in the machine room, preventing the inverter circuit from operating at high temperatures I was able to.

  In the heating cooker configured as described above, the blower fan is provided at the upper part of the machine room, the inverter circuit is fixed to the peripheral wall of the machine room by a bracket, and the bracket is vertically mounted between the bracket and the peripheral wall of the machine room. It is preferable to form a ventilation path through which air passes. In this case, the air guided from the air intake port to the blower fan passes through the ventilation path between the bracket and the peripheral wall of the machine room, so that the inverter circuit can be efficiently cooled.

  In the cooking device configured as described above, a cooling fan that cools the control device is provided in the machine room, and the control device is disposed in an air passage through which air is guided from the air intake port to the cooling fan, and the cooling device is provided. It is preferable to arrange the combustion device at a position where air is blown from the fan. In such a case, both the control device and the combustion device can be efficiently cooled by the cooling fan.

  In the cooking device configured as described above, an operation panel for inputting operation of the cooking device is arranged on the front wall of the housing on the machine room side, and a control device is arranged on the rear side of the operation panel. It is preferable that the cooling fan be disposed at the upper portion on the rear side of the operation panel with the suction side being the front side and the blow side being the rear side, and the combustion device be disposed on the rear blow side of the cooling fan. In this case, the wiring between the operation panel and the control device can be shortened to prevent the wiring from being caught in the cooling fan.

  In the heating cooker configured as described above, the machine room includes a fan motor of a convection fan for convection of air in the cooking chamber, a supply / exhaust pipe for communicating the inside of the cooking chamber with the outside of the housing, and a supply / exhaust pipe. It has a supply / exhaust valve that opens and closes the supply / exhaust pipe, a steam generator that supplies steam into the cooking chamber, and an exhaust fan that exhausts air in the machine room. Along with being disposed at the center, a supply / exhaust pipe provided with a supply / exhaust valve is disposed above the fan motor and behind the combustion device, and a steam generator is disposed behind the fan motor and the supply / exhaust pipe, An exhaust fan is arranged at the center of the housing in the front-rear direction, a partition plate is provided between the supply / exhaust pipe and the fan motor, and a rear edge of the partition plate extends upward to supply / exhaust pipe and the steam generator. It is preferable to provide a partition plate part separating theIn this case, the exhaust air from the cooling fan that has cooled the control device and the combustion device can be further passed through the air supply / exhaust pipe to prevent the air supply / exhaust valve from becoming high temperature. With this, the heat generated by the steam generator was not affected. Further, since the exhaust gas that has passed through the supply / exhaust pipe by the cooling fan can be exhausted to the outside of the housing by the exhaust fan, it is possible to prevent heat from being trapped in the machine room.

It is a front view of one embodiment of the cooking device of the present invention. FIG. 2 is a left side view of FIG. 1. FIG. 2 is a lateral cross-sectional view taken along line AA of FIG. 1. FIG. 2 is a vertical sectional view taken along line BB in FIG. 1. It is a perspective view in the state where the left side wall of the housing was removed. FIG. 3 is a vertical cross-sectional perspective view taken along line CC of FIG. 2. FIG. 3 is a schematic diagram when a supply / exhaust pipe is connected to a steam delivery cylinder.

  Hereinafter, an embodiment of a heating cooker of the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 3, the heating cooker 10 includes a cooking cabinet 12 in a housing 11 and a machine room 13 in a space excluding the cooking cabinet 12 in the housing 11. In this embodiment, The cooking cabinet 12 is arranged in a portion other than the left side of the housing 11, and a machine room 13 is provided in a space on the left side of the housing 11.

  As shown in FIG. 3 and FIG. 4, the cooking cabinet 12 is for accommodating ingredients and for heating and cooking the accommodated ingredients. An opening through which food is taken in and out is provided at the front of the cooking cabinet 12, and the opening at the front is opened and closed by a door 14. The outer peripheral surface of the cooking cabinet 12 is covered with a heat insulating material, so that heat in the cooking cabinet 12 is not easily transmitted to the machine room 13 and the outside of the housing 11.

  As shown in FIGS. 3 to 5, the heating cooker 10 includes a convection fan 15 for convection of air in the cooking cabinet 12, a temperature sensor 16 for detecting a temperature in the cooking cabinet 12, and The apparatus includes a combustion device 20 for heating and a steam generator 30 for generating steam in the cooking cabinet 12. The convection fan 15 convects the air in the cooking cabinet 12. The cooking cabinet 12 is provided with a fan blade 15 a of the convection fan 15 and a machine chamber 13 with a fan motor 15 b of the convection fan 15. The fan blade 15a is rotated by the operation of the fan motor 15b, and the air in the cooking cabinet 12 is convected by the rotation of the fan blade 15a.

  As shown in FIGS. 3 to 5, the combustion device 20 heats the inside of the cooking cabinet 12 with the combustion gas when the mixed gas of the combustion air and the fuel gas is burned. The combustion device 20 includes a blower fan 21, a gas supply pipe 23, and a mixing pipe 24, which are main components, in a machine room 13, and a heating pipe 25 and a burner 26 in the cooking cabinet 12.

  As shown in FIG. 5, the blower fan 21 supplies combustion air, and the blower fan 21 is disposed at an upper portion on the front side of the machine room 13. The blower fan 21 has an intake port on the cooking cabinet 12 side, and the blower port of the blower fan 21 is connected to a mixing pipe 24 by a blower pipe 22. The combustion air sucked from the intake port of the blower fan 21 is supplied to the mixing pipe 24 by the blower pipe 22. A gas supply pipe 23 to which fuel gas is supplied from a gas supply source is connected to the mixing pipe 24, and the fuel gas of the gas supply source is supplied to the mixing pipe 24 by the gas supply pipe 23. A gas valve 27 is interposed in the gas supply pipe 23, and the fuel gas is supplied from the gas supply pipe 23 to the mixing pipe 24 when the gas valve 27 is opened. The gas supply pipe 23 is provided with a pressure equalizing valve 28, and the pressure equalizing valve 28 is connected to the blower pipe 22 by a pressure detecting pipe 23a. The equalizing valve 28 is opened at an opening corresponding to the pressure of the air supplied from the blower fan 21 to the mixing pipe 24 through the air pipe 22, and the flow rate of the fuel gas supplied from the gas supply pipe 23 to the mixing pipe 24 ( Flow rate) is adjusted according to the amount of combustion air.

  As described above, the combustion air sent from the blower port of the blower fan 21 and the fuel gas sent from the gas supply pipe 23 are supplied to the mixing pipe 24, and the combustion air and the fuel air are mixed. They are mixed to form a mixed gas. A burner 26 is connected to the mixing pipe 24 at the other end opposite to the one end to which the blower pipe 22 and the gas supply pipe 23 are connected, and the mixed gas supplied from the mixing pipe 24 is burned by the burner 26. It becomes high temperature combustion gas. A heating pipe 25 is provided on the peripheral portion of the left side wall of the cooking cabinet 12, and a burner 26 is provided in the heating pipe 25. The mixed gas supplied from the mixing pipe 24 is burned by the burner 26 to become a high-temperature combustion gas, passes through the heating pipe 25, and the inside of the cooking cabinet 12 is heated by the combustion gas passing through the heating pipe 25.

  As shown in FIGS. 3 and 5, a steam generator 30 for supplying steam into the cooking cabinet 12 is provided at a rear portion of the machine room 13. The steam generating device 30 includes a steam generating container 31 for storing water at a predetermined water level, and a heater (not shown) is provided in the steam generating container 31. The heater heats the water in the steam generating container 31 by passing the combustion gas, and similarly to the combustion device 20 that heats the cooking chamber 12, the heater heats the mixed gas of the combustion air and the fuel gas. The burned combustion gas passes through and heats the water in the steam generating container 31 with the passing combustion gas.

  A steam delivery tube 32 is provided above the steam generation container 31, and the steam generation container 31 is connected to the cooking cabinet 12 by the steam delivery tube 32. The steam generated in the steam generation container 31 is guided into the cooking cabinet 12 by the steam delivery tube 32. A water level detection container 33 is fixed to the outside of the steam generation container 31, and a float switch (not shown) is provided in the water level detection container 33. The lower part of the water level detecting container 33 is connected to the lower part of the steam generating container 31, and the float switch detects a predetermined water level in the steam generating container 31 by detecting a predetermined water level in the water level detecting container 33. is there. A water supply pipe 34 derived from a water supply source such as a tap is connected to the water level detection container 33, and the water supply pipe 34 is provided with a water supply valve (not shown). When the water supply valve is opened, water from a water supply source such as water supply is sent from the water supply pipe 34 to the water level detection container 33, and is sent to the steam generation container 31 via the water level detection container 33. In the steam generator 30, the water in the steam generation container 31 is heated by the combustion gas passing through the heater to become steam, and the steam in the steam generation container 31 is guided to the cooking cabinet 12 by the steam delivery tube 32.

  As shown in FIGS. 3 and 5, the machine room 13 is provided with a supply / exhaust pipe 17 that communicates between the cooking cabinet 12 and the outside of the housing 11. Is provided above the fan motor 15b. The supply / exhaust pipe 17 discharges air inside the cooking cabinet 12 to the outside of the housing 11 or flows air outside the housing 11 into the cooking cabinet 12. An air supply / exhaust valve 17a is interposed in the air supply / exhaust pipe 17, and air in the cooking chamber 12 or air outside the housing 11 passes through the air supply / exhaust pipe 17 when the air supply / exhaust valve 17a is opened.

  As shown in FIGS. 1 to 3, an operation panel 18 is provided on a front wall of the housing 11 on the machine room 13 side, and the operation panel 18 is used to select various cooking programs of the heating cooker 10. Various operation switches are provided. As shown in FIGS. 3, 5 and 6, a control device 40 for controlling the operation of the cooking device 10 is provided on the rear side of the operation panel 18, and the control device 40 includes the convection fan 15 (particularly, The fan motor 15b), the temperature sensor 16, the supply / exhaust valve 17a, the operation panel 18, the combustion device 20, and the steam generator 30 are connected. Since the control device 40 is provided immediately behind the operation panel 18, the wiring connecting the operation panel 18 is hardly broken.

  The control device 40 has a microcomputer (not shown), and the microcomputer has a CPU, a RAM, a ROM, and a timer (all not shown) connected via a bus. The control device 40 includes, in the ROM, a cooking program for heating and cooking the ingredients in the cooking cabinet 12. The cooking program is a hot air mode cooking program for heating and cooking the food by the convection hot air by operating the convection fan 15 and the combustion device 20, and the food by the convection steam by operating the convection fan 15 and the steam generator 30. It consists of three modes: a steam mode cooking program for heating and cooking, and a combination mode cooking program for heating and cooking foods by hot air containing convection steam by operating the convection fan 15, the combustion device 20, and the steam generation device 30. Has a cooking program.

  The control device 40 includes an inverter unit 41 that controls the output (thermal power) of the combustion gas from the combustion device 20 by controlling the output (air volume) of the blower fan 21 of the combustion device 20. As shown in FIGS. 5 and 6, the inverter unit 41 includes a bracket 42 fixed to the machine room 13, an inverter circuit 43, and a heat sink (radiator) 44. The bracket 42 fixes the inverter circuit 43 in the machine room 13, and is fixed as a peripheral wall in the machine room 13 to the heat insulating material on the outer surface of the left side wall of the cooking cabinet 12 below the combustion device 20. The bracket 42 has a U-shaped cross section in the horizontal direction, and has a shape in which mounting flanges extending outward are formed at both ends. In order to improve the heat radiation efficiency of the inverter circuit 43, the bracket 42 is vertically ventilated between the bracket 42 and the cooking cabinet 12. A passage 42a is formed. An inverter circuit 43 and a heat sink 44 are fixed to the bracket 42. The inverter circuit 43 controls the output (rotation speed) of the blower fan 21 based on a control signal from the control device 40. Note that the inverter unit 41 also includes an inverter circuit for controlling the output of a blower fan of the combustion device of the steam generator 30. The heat sink 44 radiates heat from the inverter circuit 43 that generates heat during operation, and is fixed to the bracket 42 above the inverter circuit 43.

  The machine room 13 is provided with a heat exhaust mechanism described below for exhausting heat from the control device 40 and the inverter unit 41. As shown in FIG. 6, an air intake 13a for air is formed in the housing 11 at the front bottom portion of the machine room 13, so that outside air is introduced into the machine room 13 from the air intake 13a. Has become. In addition, a filter is provided in the air intake port 13a, so that foreign matter does not enter the machine room 13 from the air intake port 13a. The inverter unit 41 is disposed in the machine room 13 between the air intake port 13a and the blower fan 21 of the combustion device 20, and as shown by a two-dot chain line arrow in FIG. The air introduced into the machine room 13 from the air intake port 13 a passes through the inverter unit 41 and is sucked into the intake port of the blower fan 21. At this time, the inverter unit 41 is cooled when the air introduced into the machine room 13 from the air intake 13 a is sucked into the intake of the blower fan 21. In addition, since the bracket 42 has a vertical ventilation passage 42a formed between the bracket 42 and the outer surface of the left side wall of the cooking cabinet 12, the inverter unit 41 not only has the air passing outside but also the ventilation passage 42a inside the bracket 42. It is also cooled by the air passing through it.

  As shown in FIGS. 3, 5 and 6, a cooling fan 51 for cooling the control device 40 is provided in the upper front part of the machine room 13. The cooling fan 51 is disposed immediately behind the operation panel 18 with the suction side as the front side and the blowout side as the rear side. The control device 40 is arranged between the cooling fan 51 and the air intake 13a. As shown by a two-dot chain line arrow in FIG. 5, the air introduced into the machine room 13 from the air intake 13a rises along the rear side of the operation panel 18 and rises. Sucked on the suction side. At this time, the control device 40 is cooled when the air introduced into the machine room 13 from the air intake 13a rises along the rear side of the operation panel 18. Further, the combustion device 20 is disposed on the rear side, which is the blowing side of the cooling fan 51, and the combustion device 20 is cooled by the air blown from the cooling fan 51.

  As shown in FIG. 2, a lower portion of the left side wall of the housing 11 is provided with an outside air intake 13 b for introducing outside air into the machine room 13 at a rear portion. An exhaust fan 52 for exhausting the machine room 13 is provided at an intermediate portion of the exhaust fan 52. As indicated by the two-dot chain line arrows in FIG. 5, the air outside the housing 11 is taken into the machine room 13 from the outside air intake 13b, and the steam generator 30 removes the taken air. The air cooled by passing through and passing through the steam generator 30 is discharged to the outside of the housing 11 by the exhaust fan 52. The air blown out by the cooling fan 51 is sent to the middle part of the machine room 13 in the front-rear direction after passing through the combustion device 20, and is discharged to the outside of the housing 11 by the exhaust fan 52.

  As shown in FIG. 5, a partition plate 53 is provided between the supply / exhaust pipe 17 and the fan motor 15 b at an intermediate portion of the machine room 13 in the front-rear direction, and the partition plate 53 is attached to the supply / exhaust pipe 17. It has a function of preventing the adhering water drops from adhering to the fan motor 15b. A partition plate 53a extending upward is provided at the rear edge of the partition plate 53. The partition plate 53a separates the supply / exhaust pipe 17 and the steam generator 30 from each other, and the supply / exhaust valve 17a of the supply / exhaust pipe 17 is provided. (Particularly a valve motor) is less affected by the heat of the steam generating vessel 31. The partition plate portion 53a also has a function of discharging the air blown by the cooling fan 51 to the outside of the housing 11 by the exhaust fan 52 without flowing the air to the steam generator 30 side.

  When the cooking device in the combination mode is operated by the heating cooker 10 to operate the combustion device 20, first, the gas valve 27 is opened, and the fan motor of the blower fan 21 is operated. By operating the blower fan 21, combustion air is introduced from the blower pipe 22 into the mixing pipe 24, and the fuel gas whose gas volume is adjusted by the equalizing valve 28 in accordance with the supply pressure of the combustion air in the blower pipe 22 is supplied to the gas supply line. The mixture is introduced into the mixing tube 24 from the tube 23. A mixed gas in which the combustion air and the fuel gas are mixed is sent from the mixing pipe 24 to the burner 26, and the mixed gas is burned by the burner 26 to become a combustion gas. The combustion gas is exhausted outside the housing 11 through the heating pipe 25. At this time, the air around the heating tube 25 in the cooking cabinet 12 is heated by heat exchange with the combustion gas passing through the heating tube 25, and the heated air is heated by the rotation of the fan blades 15a of the convection fan 15 to generate hot air. Then, it convects inside the cooking cabinet 12. In the steam generator 30, the water in the steam generator 31 is heated by the combustion gas by the combustion device to be turned into steam, and the steam in the steam generator 31 is guided into the cooking cabinet 12 by the steam delivery tube 32. The steam guided into the cooking cabinet 12 flows in the cooking cabinet 12 together with the hot air from the combustion device 20 and the convection fan 15 as described above, and the food in the cooking cabinet 12 is heated and cooked by the hot air containing the steam.

  In the heating cooker 10 configured as described above, the control device 40 includes the inverter circuit 43 that controls the output of the combustion gas by the combustion device 20 by controlling the output of the blower fan 21 of the combustion device 20. I have. The inverter circuit 43 generates heat during operation and may not operate normally at high temperatures. In the heating cooker 10, an air intake 13 a is formed at the bottom of the machine room 13 to take in the air sucked by the blower fan 21 into the machine room 13, and the air is guided from the air intake 13 a to the blower fan 21. The inverter circuit 43 was arranged in the air passage. Accordingly, the inverter circuit 43 is cooled by the air guided from the air intake port 13a to the blower fan 21 in the machine room 13, so that it is possible to prevent the inverter circuit 43 from operating at a high temperature. did it.

  In the cooking device 10, the air intake 13 a is formed at the bottom of the machine room 13, the blower fan 21 is provided at the top of the machine room 13, and the inverter circuit 43 is mounted on the peripheral wall of the machine room 13 by the bracket 42. The bracket 42 has a ventilation path 42 a through which air passes vertically between the bracket 42 and the peripheral wall of the machine room 13. Accordingly, the air guided from the air intake port 13a to the blower fan 21 passes through the ventilation path 42a between the bracket 42 and the peripheral wall of the machine room 13, so that the inverter circuit 43 can be cooled more efficiently. Was.

  In the heating cooker 10, a cooling fan 51 for cooling the control device 40 is provided in the machine room 13, and the control device 40 is disposed in an air passage through which air is guided from the air intake 13a to the cooling fan 51. In addition, since the combustion device 20 is arranged at a position where air is blown from the cooling fan 51, both the control device 40 and the combustion device 20 can be efficiently cooled by the cooling fan 51.

  In the cooking device 10, an operation panel 18 for inputting the operation of the cooking device 10 is provided on the front wall of the housing 11 on the machine room 13 side, and on the back surface of the front wall on the machine room 13 side. The control device 40 was arranged. As described above, the air intake 13a is formed at the bottom of the front side of the machine room 13, and the cooling fan 51 is arranged above the rear surface of the front wall of the machine room 13 with the suction side as the front side and the blowout side as the rear side. The combustion device 20 is disposed behind the cooling fan 51. Thereby, the wiring between the operation panel 18 and the control device 40 can be shortened, and the wiring can be prevented from being caught in the cooling fan 51.

  In the heating cooker 10, the machine room 13 has a fan motor 15b of a convection fan 15 for convection of air in the cooking cabinet 12, a supply / exhaust pipe 17 for communicating the inside of the cooking cabinet 12 with the outside of the housing 11, and A supply / exhaust valve 17 a interposed in the supply / exhaust pipe 17 to open and close the supply / exhaust pipe 17, a steam generator 30 for supplying steam into the cooking cabinet 12, and an exhaust fan 52 for exhausting air in the machine room 13. Is provided. The fan motor 15b of the convection fan 15 is disposed at the center in the front-rear direction of the machine room 13, and the supply / exhaust pipe 17 provided with the supply / exhaust valve 17a is disposed above the fan motor 15b and behind the combustion device 20. The steam generator 30 is disposed behind the fan motor 15 b and the supply / exhaust pipe 17. In the heating cooker 10, an exhaust fan 52 is disposed at the center of the housing 11 in the front-rear direction, and a partition plate 53 is provided between the supply / exhaust pipe 17 and the fan motor 15b. Is provided with a partition plate portion 53a extending upward and separating the supply / exhaust pipe 17 and the steam generator 30. By doing so, it is possible to further prevent the exhaust air from the cooling fan 51 that has cooled the control device 40 and the combustion device 20 from passing through the air supply / exhaust pipe 17 and prevent the air supply / exhaust valve 17a from becoming high temperature. The exhaust valve 17a can be prevented from being affected by the heat of the steam generator 30 by the partition plate portion 53a. Further, since the exhaust gas passed through the air supply / exhaust pipe 17 by the cooling fan 51 can be exhausted to the outside of the housing 11 by the exhaust fan 52, it is possible to prevent heat from being trapped in the machine room 13.

  Further, in the cooking device 10, even if the combination mode or the steam mode is executed after the supply of the steam by the steam generator 30 is stopped in the hot air mode, the steam generator 30 is In order to be able to supply steam immediately, it is preferable to control the hot water in the steam generating vessel 31 to be kept at a high temperature. In this case, when the hot water in the steam generating container 31 is kept warm, in order to prevent the steam generated at the time of keeping the warm water from flowing into the cooking cabinet 12 which is performing the cooking in the hot air mode, the following will be described. It is preferred to use the mechanism shown.

  As shown in FIG. 7, the cooking device 10 is configured such that the supply / exhaust pipe 17 is connected to the steam delivery tube 32 and the three-way portion of the steam delivery tube 32 to which the supply / exhaust tube 17 is connected is provided instead of the supply / exhaust valve 17 a. The valve 17b is employed. When 100% steam is set to be supplied to the cooking cabinet 12 in the combination mode or the steam mode, the three-way valve 17b is connected to the steam generating container 31 and the cooking cabinet 12 as shown in FIG. Are connected to each other, and the supply / exhaust pipe 17 is closed with respect to the steam delivery tube 32. When the 50% steam is set to be supplied in the combination mode or the steam mode, the three-way valve 17b is connected between the supply / exhaust pipe 17 and the steam delivery cylinder 32 as shown in FIG. While maintaining the closed state, the degree of opening between the steam generating container 31 and the cooking cabinet 12 is set to be substantially half the communication.

  On the other hand, when the supply of steam is set to be stopped in the hot air mode, the three-way valve 17b is connected to the supply / exhaust pipe 17 through the steam delivery tube 32 as shown in FIG. It is assumed that the steam generating container 31 is in communication with the steam generating container 31, and the steam generating container 31 and the cooking cabinet 12 are closed. In this state, even when the hot water in the steam generation container 31 is kept warm, the steam generated in the steam generation container 31 is discharged from the supply / exhaust pipe 17 to the outside of the housing 11, and the steam is generated from the steam generation container 31 to the cooking cabinet 12. Will not flow. Further, when cooking is performed so as to remove the steam generated from the food in the hot-A mode, the three-way valve 17b is set in a state where the steam generation container 31 and the supply / exhaust pipe 17 are closed as shown in FIG. In this state, the supply / exhaust pipe 17 and the cooking cabinet 12 are communicated with each other via the steam delivery tube 32. In this state, the air outside the housing 11 is guided to the cooking cabinet 12 by the supply / exhaust pipe 17.

 DESCRIPTION OF SYMBOLS 10 ... Heating cooker, 11 ... Housing, 12 cooking cabinets, 13 ... Machine room, 13a ... Air intake, 15 ... Convection fan, 15b ... Fan motor, 17 ... Supply / exhaust pipe, 17a ... Supply / exhaust valve, 18 ... Operation panel, 20: Combustion device, 21: Blower fan, 23: Gas supply tube, 24: Mixing tube, 26: Burner, 30: Steam generator, 40: Control device, 41: Inverter circuit, 42: Bracket, 51 ... Cooling fan, 52 exhaust fan, 53: partition plate, 53a: partition plate portion.

Claims (5)

A cooking cabinet provided in the housing,
A machine room provided in a space excluding the cooking cabinet in the housing,
A combustion device for heating the inside of the cooking cabinet with combustion gas,
A heating cooker provided in the machine room and including a control device that controls operation of the combustion device,
The combustion device includes a blower fan that sends out combustion air, a gas supply pipe that sends out fuel gas, a mixing pipe that flows the combustion air and the fuel gas and mixes the mixed gas, and a mixing pipe. A burner for burning gas to generate combustion gas, and heating the inside of the cooking cabinet by passing the combustion gas generated by the burner through the cooking cabinet,
The control device includes an inverter circuit that controls an output of the combustion gas by the combustion device by controlling an output of the blower fan,
At the bottom of the machine room, an air intake for taking in the air sucked by the blower fan into the machine room is formed, and the inverter circuit is arranged in an air passage through which air is guided from the air intake to the blower fan. A cooking device characterized by the following. The cooking device according to claim 1,
The blower fan is provided at an upper part of the machine room,
The inverter circuit is fixed to a peripheral wall of the machine room by a bracket,
A heating cooker, wherein a ventilation passage through which air passes vertically is formed between the bracket and a peripheral wall of the machine room. The cooking device according to claim 1 or 2,
The machine room is provided with a cooling fan for cooling the control device,
The cooking device wherein the control device is disposed in an air passage through which air is guided from the air intake port to the cooling fan, and the combustion device is disposed at a position where air is blown from the cooling fan. vessel. The cooking device according to claim 3,
An operation panel for inputting an operation of the cooking device is arranged on a front wall of the housing on the machine room side, and the control device is arranged on a rear side of the operation panel,
The cooling fan is disposed at an upper portion on a rear side of the operation panel with a suction side as a front side and a blow side as a rear side, and the combustion device is disposed at a rear blow side of the cooling fan. Heating cooker. The cooking device according to claim 4,
The machine room includes a fan motor of a convection fan for convection of air in the cooking chamber, a supply / exhaust pipe communicating the inside of the cooking chamber with the outside of the housing, and the supply / exhaust pipe interposed in the supply / exhaust pipe. A supply / exhaust valve that opens and closes a pipe, a steam generator that supplies steam into the cooking chamber, and an exhaust fan that exhausts air in the machine room,
The fan motor is disposed at the center in the front-rear direction of the machine room, and the air supply / exhaust pipe in which the air supply / exhaust valve is interposed is disposed above the fan motor and behind the combustion device. A generator is arranged on the rear side of the fan motor and the supply / exhaust pipe, and the exhaust fan is arranged at a center in the front-rear direction of the housing,
A partition plate is provided between the supply / exhaust pipe and the fan motor, and a partition plate portion extending upward and separating the supply / exhaust pipe from the steam generator is provided at a rear edge of the partition plate. And cooker.

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