WO2018154920A1

WO2018154920A1 - Heating cooker

Info

Publication number: WO2018154920A1
Application number: PCT/JP2017/044304
Authority: WO
Inventors: 早川　雄二
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-02-23
Filing date: 2017-12-11
Publication date: 2018-08-30
Also published as: JP2018136108A; TWI670450B; CN110249179A; CN110249179B; TW201831834A; JP6761977B2

Abstract

In this heating cooker, a heating chamber has: a wall in which a suction opening, a blowout opening, an air intake opening, and an air discharge opening are provided; and an opening of a front surface. A casing is provided on the outer side of the heating chamber such that a space is formed therebetween. A door is provided to the opening of the heating chamber. A microwave-generating unit is provided in the space between the heating chamber and the casing, the microwave-generating unit generating microwaves to supply the microwaves to the heating chamber. A cooling fan is provided in the space, the cooling fan cooling the microwave-generating unit. A convection fan is provided in the space, the convection fan suctioning air within the heating chamber through the suction opening and blowing out the air into the heating chamber through the blowout opening. The heating chamber is in communication with the space through the air intake opening, and is in communication with the exterior of the casing through the air discharge opening. When a heating chamber cooling mode is selected, a control unit controls the convection fan and the cooling fan so that air from outside of the heating chamber is suctioned into the heating chamber through the air intake opening and so that the air within the heating chamber is discharged to outside of the heating chamber through the air discharge opening. This mode make it possible to improve user convenience when the heating chamber is to be cooled.

Description

Cooker

The present disclosure relates to a cooking device that performs microwave heating and radiation heating.

Conventionally, a cooking device capable of cooking by microwave heating and cooking by radiation heating is known (see, for example, Patent Document 1).

In the conventional cooking device, the heating chamber becomes hot after cooking by radiant heating. When performing thawing cooking using microwaves, it is desirable that the heating chamber be in a cooled state. For this reason, it is necessary to cool the heating chamber promptly.

The conventional cooking device is configured to operate the convection fan with the door opened to ventilate and cool the heating chamber.

Japanese Patent No. 3259473

However, the above conventional cooking device has a restriction on cooling of the heating chamber that the heating chamber cannot be cooled unless the door is opened.

This indication solves the said subject and aims at providing the cooking device which can improve the convenience of the user at the time of cooling a heating chamber.

The cooking device according to one embodiment of the present disclosure includes a heating chamber, a casing, a door, a radiation heating unit, a microwave generation unit, a cooling fan, a convection fan, an operation unit, and a control unit.

The heating chamber has a wall provided with an inlet and an outlet and an opening provided on the front surface. The housing is provided outside the heating chamber with a space between it and the heating chamber. The door is provided at the opening of the heating chamber. The radiation heating unit is provided in the heating chamber. The microwave generation unit is provided in a space between the heating chamber and the casing, generates a microwave, and supplies the microwave to the heating chamber.

The cooling fan is provided in the space and cools the microwave generation unit. The convection fan is provided in the space, sucks air in the heating chamber through the suction port, and sends out air into the heating chamber through the blowout port. The operation unit selects the heating chamber cooling mode. The control unit controls the radiation heating unit, the microwave generation unit, the cooling fan, and the convection fan.

¡Inlet and exhaust ports are further provided on the wall of the heating chamber. The heating chamber communicates with the space through the intake port and communicates with the outside of the housing through the exhaust port. When the heating chamber cooling mode is selected by the operation unit, the control unit causes the air outside the heating chamber to be sucked into the heating chamber through the intake port, and the air inside the heating chamber is discharged to the outside of the heating chamber through the exhaust port. And control.

According to this aspect, it is possible to improve the convenience of the user when cooling the heating chamber.

FIG. 1A is a perspective view of a heating cooker according to an embodiment of the present disclosure. FIG. 1B is a front view of the heating cooker according to the present embodiment. FIG. 2 is a perspective view of the cooking device according to the present embodiment with the door opened. 3 is a cross-sectional view taken along line 3-3 shown in FIG. 1B. 4 is a cross-sectional view taken along line 4-4 shown in FIG. 1B. FIG. 5 is a perspective view of the bottom plate. FIG. 6 is a perspective view of the machine room. FIG. 7 is a perspective view of the machine room. FIG. 8 is a perspective view of the heating cooker with the bottom plate removed. FIG. 9 is an exploded perspective view of the rear part of the cooking device showing the configuration of the convection heating unit. FIG. 10 is a perspective view of the heating cooker with the housing removed. FIG. 11A is a diagram illustrating the flow of air in the heating chamber when the heating chamber cooling mode is executed when the door is closed. FIG. 11B is a diagram showing the flow of air in the heating chamber when the heating chamber cooling mode is executed when the door is opened. FIG. 12 is a diagram showing examples E1 to E4 of the heating chamber cooling mode.

The heating cooker according to the first aspect of the present disclosure includes a heating chamber, a casing, a door, a radiation heating unit, a microwave generation unit, a cooling fan, a convection fan, an operation unit, and a control unit.

The cooking device according to the second aspect of the present disclosure further includes a door state detection unit that detects whether or not the door is open, in addition to the first aspect.

According to the heating cooker of the third aspect of the present disclosure, in the second aspect, when the door state detection unit detects that the door is open, the control unit determines the rotation speed in the heating chamber cooling mode. The convection fan is controlled to increase along the way.

According to the cooking device of the fourth aspect of the present disclosure, in the second aspect, the control unit has a radiant heating mode in which the convection fan and the radiant heating unit are operated. When the door state detection unit detects that the door is open, the control unit sets the rotation speed of the convection fan at the start of the heating chamber cooling mode to be lower than the rotation speed of the convection fan in the radiation heating mode.

In the heating cooker according to the fifth aspect of the present disclosure, in the second aspect, in the heating chamber cooling mode, the rotational speed of at least one of the convection fan and the cooling fan is changed to operate the convection fan and the cooling fan. A plurality of operation patterns. The control unit selects and executes one of a plurality of operation patterns according to the state of the door when the heating chamber cooling mode is selected.

The heating cooker according to the sixth aspect of the present disclosure further includes a temperature sensor that measures the temperature of the heating chamber in addition to the first aspect. The operation unit selects either the case where the heating chamber cooling mode proceeds based on the temperature in the heating chamber or the case where the heating chamber cooling mode proceeds based on the elapsed time.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

1A and 1B are a perspective view and a front view, respectively, of a heating cooker 1 according to an embodiment of the present disclosure. FIG. 2 is a perspective view of the cooking device 1 with the door opened. 3 is a cross-sectional view taken along line 3-3 shown in FIG. 1B, and FIG. 4 is a cross-sectional view taken along line 4-4 shown in FIG. 1B.

In the present embodiment, left and right mean left and right viewed from the user who operates the cooking device 1. The user side of the heating cooker 1 is defined as the front side of the heating cooker 1, and the side opposite to the user of the heating cooker 1 is defined as the rear side of the heating cooker 1.

<1> Configuration of Heating Cooker As shown in FIGS. 1A to 4, a heating chamber 200 is provided inside the casing 100 of the heating cooker 1. The heating chamber 200 is a cavity having five walls (the right side wall 210, the left side wall 220, the ceiling 230, the rear wall 240, and the bottom surface 250) and an opening provided on the front surface thereof.

The outer casing of the casing 100 is arranged after the casing case 110 that integrally covers both side surfaces and the upper surface of the heating chamber 200, the bottom plate 120 disposed below the heating chamber 200, and the rear surface of the heating chamber 200. And a plate 130.

A space having a heat insulating action is provided between the heating chamber 200 and the housing 100. Various components for operating the cooking device 1 are arranged in this space.

A door 300 that covers the opening of the heating chamber 200 is provided on the front surface of the housing 100. Since the lower side of the door 300 is pivotally supported by the lower end of the housing 100, the door 300 opens in the vertical direction (see FIG. 2).

The operation unit 310 is provided on the right side of the front surface of the door 300. The operation unit 310 includes a touch panel 311 that integrally performs operations and displays, and a plurality of buttons 312. By operating the operation unit 310, the user can select a cooking process.

The heating cooker 1 has a water supply tank 730 detachably provided at the lower right of the door 300 for storing water supplied to the steam generator 700 (see FIG. 10). The heating cooker 1 has a drainage tank 202 detachably provided on the left side of a water supply tank 730 that stores water condensed in the heating chamber 200.

A door state detection unit 330 configured by a push-in button and detecting whether the door 300 is open or closed is provided on the front surface of the housing 100 (see FIG. 2). The door state detection unit 330 is attached by being biased toward the outside. The door state detection unit 330 is pushed into the housing 100 by the door 300 when the door 300 is closed, and protrudes to the outside of the housing 100 when the door 300 is opened.

The control board 920 (see FIGS. 7 and 8) receives a signal corresponding to the state of the door 300 detected by the door state detection unit 330, and recognizes the state of the door 300. The state of the door 300 represents either the opened state or the closed state of the door 300.

As shown in FIG. 3, the right side wall 210 has a hole for the infrared sensor 150 formed in the upper center thereof. The infrared sensor 150 detects the temperature of the object to be heated through this hole. The right side wall 210 further includes two square holes for the LED 151 to illuminate the inside of the heating chamber 200.

In order to detect the temperature in the heating chamber 200, a thermistor 152 corresponding to a temperature sensor is provided on the right rear side of the ceiling 230.

As shown in FIG. 4, the left side wall 220 has an intake port 221 made up of a large number of circular punch holes provided at the lower front portion thereof. Air in the space between the heating chamber 200 and the housing 100 is sucked into the heating chamber 200 through the air inlet 221. The air merges with the air flow from the convection fan 620 and flows along the inner surface of the door 300. Thereby, while the inside of the heating chamber 200 is cooled, the dew condensation on the inner surface of the door 300 can be suppressed.

The steam generated by the steam generator 700 is supplied into the heating chamber 200 through the steam outlet 701 provided at the upper center of the left side wall 220.

As shown in FIGS. 3 and 4, the heating cooker 1 has a plurality of support protrusions 201 provided on the right side wall 210 and the left side wall 220 so as to extend in the front-rear direction. The support protrusion 201 is provided to support a square dish used for oven cooking and a grill dish used for grill cooking.

The heating chamber 200 has a radiation heating unit 500 provided on the ceiling 230. The radiant heating unit 500 has three tubular heaters extending in the left-right direction and arranged in the front-rear direction. One in the center is an argon heater 520 and the other two are miraclon heaters 510. The radiant heating unit 500 is a radiant heating unit that heats an object to be heated in the heating chamber 200 with radiant heat.

FIG. 9 is an exploded perspective view of the rear part of the heating cooker 1 showing the configuration of the convection heating unit 600.

As shown in FIG. 9, a convection heating unit 600 for circulating hot air in the heating chamber 200 is provided on the back side of the rear wall 240 (see FIGS. 3 and 4). The convection heating unit 600 includes a fan case 610, a convection fan 620, a heater 630, a motor support member 640, and a convection motor 650.

The rear wall 240 has a suction port 241 composed of a large number of circular punch holes provided in the center thereof, and a blow-out port 242 composed of a large number of circular punch holes provided in the peripheral portion thereof. The convection heating unit 600 sucks and heats the air in the heating chamber 200 through the suction port 241 and blows the heated air into the heating chamber 200 through the blowout port 242.

The rear wall 240 further has exhaust ports 260 made up of a large number of circular punch holes provided at the upper right part and the lower right part thereof.

The fan case 610 is provided behind the rear wall 240. The convection fan 620 and the heater 630 are provided in the central portion of the fan case 610. The heater 630 is a spiral sheathed heater that surrounds the outer periphery of the convection fan 620. The convection fan 620 is a counterclockwise multi-blade fan.

The motor support member 640 supports the convection motor 650. The convection motor 650 is attached to the rear surface of the fan case 610 by attaching the motor support member 640 to the rear surface of the fan case 610. The convection fan 620 is connected to the rotation shaft of the convection motor 650 and is driven by the convection motor 650. The control board 920 (see FIGS. 7 and 8) controls the convection motor 650 to control the rotational speed of the convection fan 620.

The convection motor 650 is a brushless DC motor (hereinafter referred to as a DC motor) having a variable rotation speed. Therefore, the rotational speed of the convection fan 620 is variable. The convection motor 650 is cooled by air flowing through a gap provided between the convection heating unit 600 and a rear plate 130 (see FIGS. 3 and 4) disposed behind the convection heating unit 600.

In the present embodiment, the suction port 241 and the blowout port 242 communicate the space between the rear wall 240 and the fan case 610 with the heating chamber 200.

On the other hand, the exhaust port 260 passes through the exhaust duct 131 disposed on the rear surface of the fan case 610, the exhaust port 132 provided in the rear plate 130, and the exhaust cover 133 installed in the exhaust port 132. The outside and the heating chamber 200 are communicated (see FIG. 1A and FIGS. 2 to 4). The exhaust cover 133 changes the direction of the air exhausted from the exhaust port 132.

According to the present embodiment, it is possible to ventilate the heating chamber 200 through the exhaust port 260 even when the door 300 is closed.

FIG. 10 is a perspective view of the heating cooker 1 with the housing 100 removed, as viewed from the upper left rear obliquely. As shown in FIG. 10, a steam generation unit 700 is installed on the rear upper part outside the left side wall 220.

The steam generation unit 700 includes a boiler 710 and a sheathed heater 720 installed in the boiler 710. The steam generating unit 700 generates steam by heating the water supplied into the boiler 710 with a sheathed heater 720. The generated steam blows out into the heating chamber 200 through a steam outlet 701 (see FIG. 4).

As shown in FIGS. 3 and 4, a microwave generation unit 400 that radiates microwaves is installed in the heating chamber 200 in a machine room provided in a space between the bottom surface 250 and the bottom plate 120. The microwave generator 400 includes a magnetron 420 that generates microwaves, a rotating antenna 410 that radiates the generated microwaves into the heating chamber 200, and an antenna motor 411 that rotates the rotating antenna 410.

The microwave propagates through a waveguide (not shown) from the magnetron 420 to the rotating antenna 410 and is radiated into the heating chamber 200 by the rotating antenna 410.

∙ Microwave is mainly used to directly heat an object to be heated. In the case of grill cooking, a grill pan that generates heat when irradiated with microwaves is installed in the heating chamber 200 by being supported by the support protrusions 201. When microwaves are irradiated to the grill pan from below, the object to be heated on the grill pan is mainly heated from below.

FIG. 5 is a perspective view of the bottom plate 120 of the heating cooker 1. As shown in FIG. 5, the bottom plate 120 is provided with an intake port 122 that is located near the center of the front portion thereof and includes a large number of circular punch holes for taking in cooling air.

FIG. 6 is a perspective view of the machine room with the rotating antenna 410 and the like removed (see FIGS. 3 and 4). FIG. 7 is a perspective view of the machine room with the substrate cover 911 of the inverter substrate 900 and the substrate cover 921 of the control substrate 920 removed from the state of FIG. FIG. 8 is a perspective view of the heating cooker 1 with the bottom plate 120 removed, as viewed from diagonally below the left front.

As shown in FIGS. 5 and 6, a cooling fan unit 800 that cools the inside of the heating cooker 1 is disposed above the intake port 122. The cooling fan unit 800 includes a fan cover 801, a main discharge port 811, a sub discharge port 812 (see FIG. 8), a cooling fan 820, and a DC motor 830. A fan cover 801 is disposed on the cooling fan unit 800.

As shown in FIG. 8, a cooling fan 820 is disposed near the center. Cooling air generated by the cooling fan 820 blows out from the main discharge port 811 and the sub discharge port 812. The cooling fan 820 is driven by a DC motor 830 having a variable rotation speed. The control board 920 controls the DC motor 830 to control the rotation speed of the cooling fan 820.

As shown in FIG. 7, an inverter board 900 on which an inverter 910 for driving the magnetron 420 is mounted is disposed behind the main discharge port 811. A substrate cover 911 is disposed above the inverter substrate 900 (see FIG. 6).

The inverter board 900 is cooled by the cooling air from the cooling fan unit 800. A part of the cooling air is discharged from a rear communication port 912 provided in the substrate cover 911.

7 and 8, a control board 920 is arranged on the right side of the inverter board 900. As shown in FIG. The control board 920 is provided with electronic components including a microcomputer and a memory that function as a control unit.

A substrate cover 921 is disposed above the control substrate 920 (see FIG. 6). The control board 920 is cooled by cooling air from the cooling fan unit 800. A part of the cooling air is discharged from the right communication port 923 provided in the substrate cover 921.

As shown in FIG. 8, a magnetron 420 is disposed behind the auxiliary discharge port 812. Magnetron 420 is cooled by cooling air from cooling fan 820.

The cooling air from the cooling fan 820 cools parts such as the magnetron 420 and then flows upward in the space between the heating chamber 200 and the housing 100. A part of the cooling air flows into the heating chamber 200 through the intake port 221 provided in the left side wall 220.

<2> Heating chamber cooling mode Hereinafter, the heating chamber cooling mode in which the heating chamber 200 is cooled will be described.

After grill cooking using the radiant heating unit 500 or oven cooking using the convection heating unit 600, the inside of the heating chamber 200 becomes hot. When the inside of the heating chamber 200 is high temperature, for example, if thawing cooking using microwaves is performed, there is a possibility that the food cannot be thawed uniformly.

In the present embodiment, when a cooking process such as thawing cooking that is desired to start in a low temperature state is selected, control board 920 measures the temperature in heating chamber 200 using thermistor 152. To do.

When the temperature in the heating chamber 200 is equal to or higher than the predetermined temperature, the control board 920 sounds an alarm from a speaker (not shown) notifying that it cannot proceed to the next cooking process. At the same time, the control board 920 controls the operation unit 310 to display a screen prompting the user to select the “heating chamber cooling mode” on the touch panel 311.

When the heating chamber cooling mode is selected, the control board 920 controls the rotational speeds of the convection fan 620 and the cooling fan 820 to execute the heating chamber cooling mode.

In the heating chamber cooling mode, the control board 920 ventilates and cools the inside of the heating chamber 200 by operating the convection fan 620 and the cooling fan 820 with the radiation heating unit 500, the heater 630, and the magnetron 420 stopped. To do.

As described above, in the present embodiment, on the inner wall surface of the heating chamber 200, the intake port 221 that communicates with the space between the heating chamber 200 and the housing 100 and the exhaust port 260 that communicates with the outside of the housing 100. Is provided.

FIG. 11A and FIG. 11B are schematic diagrams showing the flow of air generated in the heating chamber 200 in the heating chamber cooling mode. FIG. 11A shows a case where the door 300 is closed, and FIG. 11B shows a case where the door 300 is opened.

As shown in FIG. 11A, when the convection fan 620 operates, an air flow (arrow A1) from the inside of the heating chamber 200 to the outside occurs through the suction port 241. At the same time, an air flow (arrow A2) from the outside to the inside of the heating chamber 200 is generated through the air outlet 242.

When the cooling fan 820 is activated, cooling air (arrow A3) from the outside to the inside of the heating chamber 200 is generated through the air inlet 221. At the same time, an air flow (arrow A4) flows from the inside of the heating chamber 200 to the outside through the exhaust port 260.

These air flows promote ventilation in the heating chamber 200 with the door 300 closed, thereby cooling the heating chamber 200.

As shown in FIG. 11B, in the state in which the door 300 is opened, in addition to the air flow shown in FIG. A flow (arrow A5) and an air flow (arrow A6) from the outside to the inside of the heating chamber 200 are further generated.

The air flow further promotes ventilation in the heating chamber 200 with the door 300 opened, and the heating chamber 200 can be further cooled.

According to the present embodiment, if the heating chamber cooling mode is executed regardless of the state of the door 300, the heating chamber 200 is efficiently ventilated through the intake port 221 and the exhaust port 260. Can be efficiently cooled.

Hereinafter, a specific example of the heating chamber cooling mode will be described with reference to FIG.

FIG. 12 is a diagram showing examples E1 to E4 of the heating chamber cooling mode. In the present embodiment, the control board 920 executes the heating chamber cooling mode according to one of preset examples E1 to E4. Each of the examples E1 to E4 has two operation patterns (operation patterns P1 and P2). The control board 920 selects the operation pattern P1 when the door 300 is open, and selects the operation pattern P2 when the door 300 is closed.

In FIG. 12, the stage S1 and stage S2 of the fan rotation number represent the first half period and the second half period of the heating chamber cooling mode, respectively.

In Example E1, regardless of the state of the door 300, the convection fan 620 and the cooling fan 820 operate at the maximum rotation speed through the stages S1 and S2.

For the convection fan 620, the maximum rotation speed is the same as that in the radiant heating mode in which oven cooking is performed. Regarding the cooling fan 820, the maximum number of rotations is the same as the number of rotations when the magnetron 420 is cooled in the microwave heating mode in which the microwave generator 400 operates.

In this case, ventilation in the heating chamber 200 is most promoted, and cooling in the heating chamber 200 can be most promoted.

The control mode of the convection fan 620 is common to the examples E2 to E4. Specifically, when the door 300 is open, the convection fan 620 operates at the minimum rotation speed in the stage S1, and operates at an intermediate rotation speed in the stage S2.

When the convection fan 620 is operated with the door 300 opened immediately after the end of the oven cooking, the hot air in the heating chamber 200 is discharged forward. Therefore, the rotational speed of the convection fan 620 is suppressed in the initial stage of cooling and increased from the middle. In this way, hot air is prevented from being expelled forward.

In Examples E2 to E4, when the door 300 is opened, the control mode of the cooling fan 820 is different. Specifically, in example E2, the cooling fan 820 operates at the maximum number of rotations in both stages S1 and S2. Thereby, cooling in the heating chamber 200 is promoted to the maximum extent.

In Example E3, the cooling fan 820 operates at the maximum rotation speed in the stage S1, and operates at the minimum rotation speed in the stage S2. Thereby, cooling can be promoted in the initial stage of cooling, and energy can be saved after the temperature has decreased to some extent.

In Example E4, the cooling fan 820 operates at the maximum rotation speed in the stage S1, and stops in the stage S2. Thereby, cooling can be promoted in the initial stage of cooling, and energy can be further saved after the temperature has decreased to some extent.

As described above, in any of Examples E1 to E4, the convection fan 620 and the cooling fan 820 operate regardless of the state of the door 300. Thereby, ventilation in the heating chamber 200 is promoted, and cooling in the heating chamber 200 can be promoted.

According to the present embodiment, when the door 300 is closed, fully opened, or half open, ventilation in the heating chamber 200 is promoted, and cooling in the heating chamber 200 can be promoted.

That is, when the door 300 is closed, the heating chamber cooling mode can be executed in a state where the door 300 does not get in the way. When the door 300 is fully opened, ventilation in the heating chamber 200 is most promoted. When the door 300 is half open, the door 300 functions as a guide plate that changes the direction of the flow of high-temperature air and a soundproof wall that reduces sound leakage from the inside of the heating chamber 200.

The user can select either the case where the progress of the heating chamber cooling mode is based on the temperature in the heating chamber 200 or the case where the progress of the heating chamber cooling mode is based on the elapsed time using the operation unit 310. The progression of the heating chamber cooling mode means the transition from the stage S1 to the stage S2 and the end of the stage S2.

Specifically, following the selection of the “heating chamber cooling mode” using the operation unit 310, for example, the condition for advancing the heating chamber cooling mode is set to one of the above two cases. The operation unit 310 displays a screen prompting the user. Thereby, a user's convenience can further be improved.

The cooking device of the present disclosure is not limited to the above embodiment. For example, in the present embodiment, the heating chamber cooling mode includes examples E1 to E4. However, the heating chamber cooling mode may include examples other than the above examples E1 to E4.

In the present embodiment, the user can select conditions for proceeding with the heating chamber cooling mode using the operation unit 310. However, the condition for advancing the heating chamber cooling mode may be limited to one set in advance.

In this embodiment, the condition for causing the heating chamber cooling mode to proceed is either based on temperature or based on elapsed time. However, other conditions may be used as conditions for proceeding with the heating chamber cooling mode.

In the present embodiment, the thermistor 152 is provided as a temperature sensor that measures the temperature of the heating chamber 200. However, a temperature sensor other than the thermistor is also applicable.

In the present embodiment, in this embodiment, the control board 920 executes the heating chamber cooling mode according to one of preset examples E1 to E4. However, the control board 920 may store the examples E1 to E4 and select and execute any of the examples E1 to E4 according to various conditions when the heating chamber cooling mode is selected. Various conditions may include, for example, the cooking process executed immediately before, the temperature in the heating chamber 200, and the like.

As described above, the present disclosure is applicable to a cooking device that performs microwave heating and radiation heating.

DESCRIPTION OF SYMBOLS 1 Heating cooker 100 Case 110 Case case 120 Bottom plate 122 Intake port 130 Rear plate 131 Exhaust duct 132,260 Exhaust port 133 Exhaust cover 150 Infrared sensor 152 Thermistor 200 Heating chamber 201 Support protrusion 202 Drain tank 210 Right side wall 220 Left side wall 221 Intake port 230 Ceiling 240 Rear wall 241 Suction port 242 Outlet 250 Bottom surface 300 Door 310 Operation unit 312 Button 311 Touch panel 400 Microwave generation unit 420 Magnetron 410 Rotating antenna 411 Antenna motor 500 Radiation heating unit 510 Miraclone heater 520 Argon heater 600 Convection heating unit 610 Fan case 620 Convection fan 630 Heater 640 Motor support member 650 Convection motor 700 Steam generation part 701 Steam Exit 710 Boiler 720 Seed heater 730 Water supply tank 800 Cooling fan unit 801 Fan cover 811 Main discharge port 812 Sub discharge port 820 Cooling fan 830 DC motor 900 Inverter board 910

Inverter

911, 921 Substrate cover 912 Rear communication port 920 Control board 923 Right side communication board mouth

Claims

A heating chamber having a wall provided with an inlet and an outlet, and an opening provided on the front surface;
A housing provided outside the heating chamber with a space between the heating chamber;
A door provided in the opening of the heating chamber;
A radiation heating unit provided in the heating chamber;
A microwave generator provided in the space between the heating chamber and the housing, configured to generate a microwave and supply the microwave to the heating chamber;
A cooling fan provided in the space and configured to cool the microwave generation unit;
A convection fan provided in the space, configured to suck air in the heating chamber through the suction port, and send the air into the heating chamber through the air outlet;
An operating unit configured to select a heating chamber cooling mode;
A control unit configured to control the radiation heating unit, the microwave generation unit, the cooling fan, and the convection fan;
An intake port and an exhaust port are further provided in the wall of the heating chamber,
The heating chamber communicates with the space through the inlet, communicates with the outside of the housing through the exhaust;
When the heating chamber cooling mode is selected by the operation unit, the air outside the heating chamber is sucked into the heating chamber through the intake port, and the air in the heating chamber is discharged out of the heating chamber through the exhaust port. A heating cooker configured such that the control unit controls the convection fan and the cooling fan.
The cooking device according to claim 1, further comprising a door state detection unit that detects whether or not the door is open.
When the door state detection unit detects that the door is open, the control unit is configured to control the convection fan so as to increase the rotation speed in the heating chamber cooling mode. The heating cooker according to claim 2.
The control unit has a radiation heating mode in which the convection fan and the radiation heating unit are operated,
When the door state detection unit detects that the door is open, the control unit determines the rotation speed of the convection fan at the start of the heating chamber cooling mode and the rotation of the convection fan in the radiation heating mode. The cooking device according to claim 2, wherein the cooking device is configured to be set lower than the number.
The heating chamber cooling mode has a plurality of operation patterns for operating the convection fan and the cooling fan by changing the rotational speed of at least one of the convection fan and the cooling fan,
The control unit is configured to select and execute one of the plurality of operation patterns according to a state of the door when the heating chamber cooling mode is selected. The cooking device described.
A temperature sensor for measuring the temperature of the heating chamber;
The operation unit is configured to select one of a case where the heating chamber cooling mode proceeds based on the temperature in the heating chamber and a case where the heating chamber cooling mode proceeds based on an elapsed time. The cooking device according to claim 1.