JP4664754B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker having a heater cooking function for cooking a cooked food with a heater.

In the case of the induction heating cooker, smoke and steam are generated from the cooked food such as fish stored in the cooking cabinet when heated with a heater. For this reason, the external airflow which passes the inside of a cooking chamber from the front to back is produced | generated, the smoke in a cooking chamber is carried on an external airflow, and is discharged | emitted out of the chamber.
JP-A-5-1822

  In the induction heating cooker, the air in the cooking chamber is discharged to the outside with a pressure difference between the inside and outside during cooking with the heater, and the air outside the cooking chamber is sucked into the chamber with a pressure difference between the inside and outside. For this reason, it is not possible to obtain a sufficient air volume for discharging smoke or the like in the cooking chamber. In order to prevent this, it is conceivable to provide a dedicated fan device for sending outside air into the cooking chamber, but the configuration becomes complicated.

  This invention is made | formed in view of the said situation, The objective is to provide the induction heating cooking appliance which can produce | generate the sufficient quantity of wind required for the flue gas in a cooking cabinet with a simple structure. is there.

An induction heating cooker according to the present invention includes a drive circuit that drives a coil that induction-heats a cooking utensil, a fan device that generates cooling air that cools the drive circuit, and a front surface that opens to store a food item. A cooking chamber, a heater that heats the food in the cooking chamber, a door that opens and closes the front of the cooking chamber, and a gap-like air blow between the cooking chamber and the door when the door is closed A seal member that covers the space between the cooking chamber and the door so that the mouth remains, except for the air blowing port, and the cooling air that is provided outside the cooking chamber and passes through the drive circuit enters. A flow rate adjusting chamber for adjusting the flow rate by supplying the cooling air from the blower opening into the cooking chamber when the door is closed, and an exhaust port for discharging the cooling air from the cooking chamber. However, it has the characteristics.

The cooling air that has passed through the drive circuit is forcibly sent to the cooking chamber for smoke emission. This eliminates the need for a dedicated fan device that sends smoke-exhausting wind into the cooking chamber, so that a sufficient amount of wind required for exhausting smoke can be generated with a simple configuration. Moreover, since the cooling air that has passed through the drive circuit is supplied into the cooking chamber through the flow rate adjustment chamber, the flow rate of the cooling air is suppressed from a high level necessary for cooling the drive circuit to a low level necessary for discharging smoke. Can do. Accordingly, it is possible to prevent the internal temperature from excessively lowering due to the effect of flowing the cooling air of the drive circuit in the cooking chamber for smoke emission.

<Example 1>
As shown in FIG. 1, a rectangular main body case 2 is accommodated in the system kitchen 1. The main body case 2 has an upper surface and an open front surface, and an upper case 3 is fixed inside the main body case 2 as shown in FIG. The upper case 3 has a rectangular shape with an upper surface opened, and the inner space of the upper case 3 functions as a coil chamber 4 in which a coil for cooking is stored. A gap 5 is formed between the upper case 3 and the main body case 2 at the rear end, and the gap 5 is covered with an intake / exhaust cover 6 from above. As shown in FIG. 3, the intake / exhaust cover 6 has a horizontally long rectangular shape, and has a net shape having a plurality of through holes.

  A central base 7 is fixed in the coil chamber 4, and a central heater 8 for conductive heating is fixed to the central base 7. A left base 9 and a right base 10 are fixed in the coil chamber 4. A left coil 11 for induction heating is fixed to the left base 9, and a resonance capacitor 12 is connected to the left coil 11 in series as shown in FIG. A right coil 13 for induction heating is fixed to the right base 10 as shown in FIG. 3, and a resonant capacitor 14 is connected to the right coil 13 in series as shown in FIG.

  As shown in FIG. 1, a rectangular support frame 16 is fixed to the cooking table 15 of the system kitchen 1. As shown in FIG. 2, an opening 17 is formed at the rear end of the support frame 16, and the intake / exhaust cover 6 is exposed to the outside through the opening 17. A heat-resistant glass top plate 18 is fixed to the inner periphery of the support frame 16. The top plate 18 covers the upper surface of the upper case 3 from above. On the upper surface of the top plate 18, a cooking utensil for conductive heating is placed above the central heater 8 and above the left coil 11. And cooking utensils for induction heating are placed on the right coil 13 and placed respectively.

  As shown in FIG. 1, a left temperature sensor 19 is fixed to the left base 9, a right temperature sensor 20 is fixed to the right base 10, and a central temperature sensor 21 (see FIG. 4) is fixed to the central base 7. Has been. As shown in FIG. 1, the temperature sensing part of the left temperature sensor 19 contacts the lower surface of the top plate 18 above the left coil 11, and the temperature sensing part of the right temperature sensor 20 is located above the right coil 13 and the top plate 18. The temperature sensing part of the central temperature sensor 21 is in contact with the lower surface of the top plate 18 above the central heater 8, and the left temperature sensor 19 to the central temperature sensor 21 are the upper cooking utensils. The surface temperature is detected indirectly via the top plate 18.

  As shown in FIG. 2, an inverter chamber 22 is formed inside the main body case 2. The inverter chamber 22 refers to a space below the upper case 3, and the inverter chamber 22 communicates with the outside via a gap 5 between the main body case 2 and the upper case 3. A left inverter circuit 23 and a right inverter circuit 24 are fixed in the inverter chamber 22. The left inverter circuit 23 and the right inverter circuit 24 are arranged in two upper and lower stages, and are arranged below the right coil 13. The left inverter circuit 23 converts DC power into high frequency drive power and supplies it to the left coil 11, and the right inverter circuit 24 converts DC power into high frequency drive power and supplies it to the right coil 13. Both the left inverter circuit 23 and the right inverter circuit 24 are supplied with DC power from a commercial AC power supply through a rectifier circuit. These left inverter circuit 23 and right inverter circuit 24 correspond to drive circuits.

  As shown in FIG. 2, a fan casing 25 is fixed in the inverter chamber 22 so as to be located behind the left inverter circuit 23 and the right inverter circuit 24. The fan casing 25 has a spiral shape, and has a duct-shaped exhaust port 26 directed forward and a through-hole-shaped intake port 27 opened rightward. As shown in FIG. 3, a fan motor 28 is fixed to the fan casing 25, and a fan 29 is fixed to the rotation shaft of the fan motor 28. The fan motor 28 is constituted by a winding type induction motor. When the fan motor 28 is driven, outside air is sucked into the inverter chamber 22 from the intake / exhaust cover 6 through the gap 5, and from the intake port 27 of the fan casing 25. It is discharged forward through the exhaust port 26. As shown in FIG. 2, the exhaust port 26 extends over both the upper coil chamber 4 and the lower inverter chamber 22, and a part of the wind discharged from the exhaust port 26 flows in the coil chamber 4. The central heater 8, the left coil 11, and the right coil 13 are cooled based on that, and the remaining wind discharged from the duct 26 cools the left inverter circuit 23 and the right inverter circuit 24 based on flowing in the inverter chamber 22. To do. That is, the fan casing 25, the fan motor 28, and the fan 29 constitute a fan device 30 that generates cooling air for electrical components.

As shown in FIG. 6, a roaster outer case 31 is fixed in the main body case 2 so as to be located in the inverter chamber 22. The roaster outer case 31 has a rectangular box shape with an open front surface, and the inner space of the roaster outer case 31 functions as a roaster chamber 32. The roaster outer case 31 is disposed on the left side of the left inverter circuit 23 and the right inverter circuit 24, and a front frame 32a is disposed in front of the roaster outer case 31, as shown in FIG. The front frame 32 a has a rectangular frame shape along the outer roster case 31 and is fixed to the main body case 2. A clearance-like rear smoke passage 33 is formed between the bottom plate of the outer case 31 of the roaster and the bottom plate of the main body case 2, and the wind discharged from the exhaust port 26 of the fan casing 25 into the inverter chamber 22 is formed. A part of the air flows forward along the rear smoke passage 33 as indicated by an arrow, and the remainder of the wind discharged from the exhaust port 26 of the fan casing 25 into the inverter chamber 22 is a gap between both side surfaces of the main body case 2. And it is discharged out of the machine through the gap in the front.

  The roaster outer case 31 corresponds to a cooking cabinet, and the roaster inner case 34 is detachably accommodated in the roaster outer case 31. As shown in FIG. 6, the roaster inner case 34 has a rectangular tube shape with an open front and rear surface, and a flange 35 is formed around the roaster inner case 34 at the front end of the roaster inner case 34. ing. A plurality of rails 36 are formed on the bottom surface of the roaster inner case 34, and a cooking dish 37 is placed on the rails 36. The cooking plate 37 has an upper surface that is slidable in the front-rear direction along the upper surfaces of the plurality of rails 36. A grill net 38 is detachably attached to the cooking dish 37. The grill net 38 is spaced upward with respect to the bottom surface of the cooking dish 37, and the food is placed on the grill net 38.

  As shown in FIG. 5, a rectangular plate-shaped rear door plate 39 is fixed to the front end portion of the cooking dish 37, and a rectangular frame-shaped door frame 40 is fixed to the door rear plate 39. A glass window 41 is fixed to the inner periphery of the door frame 40, and a plurality of through holes 42 are formed in the door rear plate 39 located behind the window 41. The door rear plate 39, the door frame 40, and the window 41 constitute a door 43. When the cooking dish 37 is stored in the roaster chamber 32, as shown in FIG. It will be in the closed state which closes the front of. When the door 43 is pulled forward from the closed state, the front surface of the roaster chamber 32 is opened. When the door 43 is open, the cooking plate 37 is pulled out from the roaster chamber 32 integrally with the door 43. .

As shown in FIG. 5, a low plate 44 that protrudes rearward is fixed to the lower end portion of the door 43, and the low plate 44 is inserted into the insertion port 45 when the door 43 is closed. The insertion port 45 refers to a through hole formed in the lower end portion of the front frame 32 , and a guard 46 is formed in the front frame 32 a so as to be positioned at the lower side portion of the insertion port 45. The guard 46 has an inclined shape that rises rearward. When the door 43 is closed, the guard 46 contacts the roke plate 44.

The door rear plate 39 is formed with an outer packing 47 and an inner packing 48 corresponding to a seal member. The outer packing 47 and the inner packing 48 protrude rearward, and the outer packing 47 enhances the airtightness of the roaster chamber 32 based on contact with the front frame 32a when the door 43 is closed. The airtightness of the roaster chamber 32 is enhanced based on the contact with the flange 35 of the inner roaster case 34 in the closed state of the door 43. The outer packing 47 and the inner packing 48 are non-annular end-like ones. When the door 43 is closed, the door rear plate 39 and the front frame 32a are partially separated by a gap between both ends of the outer packing 47. The door rear plate 39 and the flange 35 are partially separated by a gap between both end portions of the inner packing 48. These two gaps are set at the same position on the lower end portion of the door 43, and both the gaps are referred to as an air blowing port 49.

  As shown in FIG. 6, an upper heater 50 and a lower heater 51 are accommodated in the roaster chamber 32. The upper heater 50 and the lower heater 51 are fixed to the rear plate of the outer roaster case 31, and the inner roaster case 34 is the front surface of the roaster chamber 32 while leaving the upper heater 50 and the lower heater 51 in the roaster chamber 32. Is attached to and detached from the outer case 31 of the roaster. The upper heater 50 radiates heat from above to the food on the grill 38 and is disposed on the ceiling in the roaster chamber 32. The lower heater 51 is interposed between the cooking pan 37 and the grill 38 with the door 43 closed, and radiates heat from below to the food on the grill 38. That is, the roaster chamber 32 has a double-sided baking function for heating the cooked food from the upper and lower sides, and an internal temperature sensor 52 (see FIG. 4) for detecting the internal temperature of the roaster chamber 32 is provided in the roaster chamber 32. It is fixed.

  As shown in FIG. 6, an exhaust duct 53 corresponding to the exhaust passage is formed in the roaster outer case 31. The exhaust duct 53 has an inclined shape that rises rearward, and a vertical cylindrical exhaust port 54 is detachably fixed to the rear end portion of the exhaust duct 53. The exhaust port 54 is inserted into the gap 5 between the main body case 2 and the upper case 3, and when cooking is performed in the roaster chamber 32, the internal air in the roaster chamber 32 is exhausted from the exhaust duct 53 and It is discharged from the exhaust port 54 through the intake / exhaust cover 6 to the outside of the machine due to a pressure difference between inside and outside.

  As shown in FIG. 5, a stepped portion 55 is formed on the bottom plate of the main body case 2 at the front end of the roaster chamber 32. The step portion 55 refers to a portion of the bottom plate of the main body case 2 that is closer to the bottom plate of the roaster outer case 31 than the remaining portion. Between the step portion 55 and the bottom plate of the roaster outer case 31 is a rear exhaust. A gap-shaped front smoke exhaust passage 56 that is narrower in the height direction than the smoke passage 33 is formed. The front smoke exhaust passage 56 is connected to the rear smoke exhaust passage 33, and a plurality of openings 57 are formed in the step portion 55 so as to be located in the front smoke exhaust passage 56.

A plate-like bottom plate cover 58 is fixed to the bottom plate of the main body case 2. The bottom plate cover 58 forms a spatial flow rate adjusting chamber 59 in cooperation with the upper step portion 55 and the front front frame 32a . When the door 43 is in a closed state, the low plate 44 passes through the insertion port 45 and flows. It is inserted into the control chamber 59. The flow rate adjusting chamber 59 has a plurality of openings 57 as inlets and an air outlet 49 as an outlet, and the cooling air flowing forward in the rear smoke passage 33 from the front smoke passage 56 has a plurality of openings. 57 enters the flow control chamber 59. This cooling air enters the roaster chamber 32 from below through the insertion port 45 of the front frame 32a through the air blowing port 49, and when cooking is performed in the roaster chamber 32, the cooling air rides on the rising airflow and the exhaust duct 53 and the exhaust port. 54 is discharged out of the machine through the intake / exhaust cover 6.

  A deodorizer 60 is fixed in the exhaust duct 53 as shown in FIG. The deodorizer 60 is constructed by housing a deodorizing catalyst 62 made of palladium and a catalyst heater 63 in a deodorizing case 61. When the inside air of the roaster chamber 32 is exhausted outside the apparatus, In contact with the deodorizing catalyst 62. The catalyst heater 63 heats the deodorization catalyst 62, and the deodorization catalyst 62 is activated based on being heated by the catalyst heater 63 and removes odor components from the inside air passing through the exhaust duct 53.

  As shown in FIG. 2, the printed circuit board 64 is fixed in the upper and lower three stages in the inverter chamber 22. The left inverter circuit 23 is mounted on the upper printed circuit board 64, and the middle printed circuit board 64. The right inverter circuit 24 is mounted, and a control circuit 70 (see FIG. 4) mainly composed of a microcomputer is mounted on the lower printed wiring board 64. As shown in FIG. 4, the control circuit 70 includes a CPU 71, a ROM 72, and a RAM 73, detects the surface temperature of the cooking utensil above the left coil 11 based on the output signal from the left temperature sensor 19, The surface temperature of the cooking utensil above the right coil 13 is detected based on the output signal from the right temperature sensor 20, and the surface temperature of the cooking utensil above the central heater 8 is detected based on the output signal from the central temperature sensor 21. Then, the internal temperature of the roaster chamber 32 is detected based on the output signal from the internal temperature sensor 52.

  The control circuit 70 is connected to the left inverter circuit 23 and the right inverter circuit 24, and the control circuit 70 adjusts the heating output of the left coil 11 based on switching control of the left inverter circuit 23, and the right inverter circuit 24. The heating output of the right coil 13 is adjusted based on the switching control. A motor drive circuit 74 is connected to the control circuit 70. The motor drive circuit 74 applies drive power to the fan motor 28, and the control circuit 70 controls the rotation speed of the fan motor 28 at low speed, medium speed, and high speed based on driving control of the motor drive circuit 74. The three stages are adjusted.

  A heater drive circuit 75 and a heater drive circuit 76 are connected to the control circuit 70, and the control circuit 70 adjusts the heating output of the central heater 6 based on turning on / off the central heater 8 via the heater drive circuit 75. The deodorizing catalyst 62 is heated to a set temperature based on turning on / off the catalyst heater 63 via the heater drive circuit 76. A heater drive circuit 77 and a heater drive circuit 78 are connected to the control circuit 70, and the control circuit 70 adjusts the heating output of the upper heater 50 based on turning the upper heater 50 on and off via the heater drive circuit 77. Then, the heating output of the lower heater 51 is adjusted based on turning the lower heater 51 on and off via the heater drive circuit 78. The control circuit 70 corresponds to a flow rate control unit and a cooking control unit.

  As shown in FIG. 1, an operation panel 79 is fixed to the main body case 2 on the right side of the door 43, and a plurality of switches 80 are mounted on the operation panel 79 so as to be operable from the front. As shown in FIG. 4, the plurality of switches 80 are connected to a control circuit 70, and the control circuit 70 detects the input content of cooking information based on the operation content of the plurality of switches 80. A liquid crystal display 82 is connected to the control circuit 70 via an LCD drive circuit 81. The liquid crystal display 82 is mounted on the operation panel 79, and the control circuit 70 displays the cooking information detection result on the liquid crystal display 82.

  A plurality of cooking programs are recorded in the ROM 72 of the control circuit 70, and the CPU 71 of the control circuit 70 detects a cooking program corresponding to the detection result of the cooking information from the ROM 72. Then, heating cooking is automatically performed by controlling driving of the central heater 8, the left coil 11, the right coil 13, the fan motor 28, the upper heater 50, the lower heater 51, and the catalyst heater 63 based on the detection result of the cooking program. . For example, when hot water cooking using the left coil 11 is detected as cooking information, the left coil 11 is operated with a heating output corresponding to the detection result of the cooking program, and the output signal from the left temperature sensor 19 corresponds to the detection result of the cooking program. The left coil 11 is shut down based on detecting that the boiling water temperature has been reached. When tempura cooking using the right coil 13 is detected as cooking information, the heating output of the right coil 13 is adjusted so that the output signal from the right temperature sensor 20 converges to the tempura cooking temperature corresponding to the cooking program.

  The CPU 71 of the control circuit 70 controls the rotational speed of the fan motor 28 according to the total value W of the heating output of the left coil 11 and the heating output of the right coil 13 when operating at least one of the left coil 11 and the right coil 13. Then, cooling air having a flow rate corresponding to the total heating output W is blown into the coil chamber 4 and the inverter chamber 22. For example, when the total heating output W is within the standard range recorded in the ROM 72, the cooling air with a medium flow rate is blown based on operating the fan motor 28 at a medium speed, and the total heating output W falls below the standard range. When the fan motor 28 is operated at a low speed, a low flow rate of cooling air is blown. When the total heating output W exceeds the standard range, the fan motor 28 is operated at a high speed. And blows a high flow cooling air.

  When the CPU 71 of the control circuit 70 detects roaster cooking as cooking information, the CPU 71 operates the three of the upper heater 50, the lower heater 51, and the catalyst heater 63 until the set time T elapses. In this roaster cooking, the CPU 71 individually controls the upper heater 50 and the lower heater 51 on and off to converge the output signal from the internal temperature sensor 52 to the baking temperature corresponding to the cooking program. When this roaster cooking is performed independently without using both the left coil 11 and the right coil 13, the fan motor 28 is operated at a constant medium speed, and a medium flow rate wind is forced into the roaster chamber 32 as a flue gas. To blow.

  When roaster cooking is performed in the operating state of at least one of the left coil 11 and the right coil 13, the rotational speed of the fan motor 28 is controlled according to the total value W of the heating output of the left coil 11 and the heating output of the right coil 13. Therefore, the amount of cooling air blown to the roaster chamber 32 changes in conjunction with the change in the rotational speed of the fan motor 28. In this case, the CPU 71 of the control circuit 70 corrects the cooking time setting result according to the rotational speed of the fan motor 28. For example, when the fan motor 28 is operated at a low speed, the cooking time setting result is shortened based on multiplying the cooking time setting result by the correction value k1 (<1), and the fan motor 28 is operated at a high speed. Sometimes, the cooking time setting result is extended based on multiplying the cooking time setting result by the correction value k2 (> 1).

According to the said Example 1, there exists the following effect.
A part of the cooling air was forcibly sent from the fan device 30 for cooling the left inverter circuit 23 and the right inverter circuit 24 into the roaster chamber 32 for smoke emission. This eliminates the need for a dedicated fan device for sending the smoke exhausting wind into the roaster chamber 32, so that a sufficient amount of wind required for exhausting the smoke can be generated with a simple configuration. In addition, since a part of the cooling air is supplied into the roaster chamber 32 through the flow rate adjusting chamber 59, the flow rate of the cooling air is required to discharge smoke from a high level necessary for cooling the left inverter circuit 23 and the right inverter circuit 24. It can be suppressed to a low level. Accordingly, it is possible to prevent the internal temperature of the roaster chamber 32 from being excessively lowered due to the flow of the cooling air of the left inverter circuit 23 and the right inverter circuit 24 as it is for exhausting smoke into the roaster chamber 32.

Since the outer packing 47 is brought into contact with the front frame 32a in the closed state of the door 43 and the inner packing 48 is brought into contact with the flange 35 of the inner case 34 of the roaster, the gap between the roaster chamber 32 and the door 43 is closed. The smoke cooling air is discharged from the exhaust port 54 without being discharged from between the door 43 and the roaster chamber 43 during cooking. For this reason, since the cooling air for smoke exhaust smoothly passes through the roaster chamber 32, the smoke exhaust performance of the roaster chamber 32 is enhanced.

  Since the cooling air is supplied from below into the roaster chamber 32 from the flow rate adjusting chamber 59 through the air blowing port 49, the cooling air for smoke emission is surely discharged from the exhaust port 54 by the ascending current during the roaster cooking. For this reason, since the cooling air for smoke exhaust smoothly passes through the roaster chamber 32, the smoke exhaust performance of the roaster chamber 32 is enhanced.

  Since the deodorizer 60 is provided in the exhaust duct 53, the smoke can be deodorized and discharged outside the apparatus. In addition, since the cooling air for exhaust gas is forcibly sent from the fan device 30 into the roaster chamber 32, the exhaust air cooling is performed despite the presence of the deodorizer 60 as a large ventilation resistance in the exhaust duct 53. Wind can flow smoothly.

  When the control circuit 70 is operating the fan device 30 at a rotational speed corresponding to the heating output of the left coil 11 and the heating output of the right coil 13, the operating time of the upper heater 50 and the operating time of the lower heater 51 are set as the fan device 30. The roaster cooking time was adjusted according to the rotation speed. For this reason, since the roaster cooking time is automatically adjusted according to the flow rate of the cooling air for flue gas, the food can be finished in a stable cooking state regardless of the flow rate of the cooling air. .

  In the first embodiment, when the roaster cooking is performed in the operating state of at least one of the left coil 11 and the right coil 13, the cooking time of the roaster cooking is corrected according to the rotation speed of the fan motor 28. For example, the internal temperature of the roaster chamber 32 may be corrected according to the rotational speed of the fan motor 28. In short, the operation content of the upper heater 50 and the operation content of the lower heater 51 may be corrected according to the operation content of the fan motor 28.

In the first embodiment, the outer packing 47 and the inner packing 48 are provided on the roaster chamber 32 side. However, the present invention is not limited to this, and may be provided, for example, on the door 43 side.
In the first embodiment, the outer seal 47 and the inner packing 48 are used to double seal the space between the roaster chamber 32 and the door 43. However, the present invention is not limited to this. One of the packings 48 may be used for sealing.

The figure which shows Example 1 (The front view which shows the whole structure partially broken and shows) Sectional drawing which shows the internal structure of the main body case from the side (The figure which shows the arrangement | positioning relationship between a fan casing and an inverter circuit) Top view showing the internal structure of the body case with the top plate removed Block diagram showing electrical configuration Sectional view showing the roaster chamber (a is a diagram showing the front end of the roaster chamber, b is an enlarged view showing the flow rate adjusting chamber) Sectional drawing which shows the internal structure of a main body case from the side (The figure which shows the whole structure of a roaster room)

Explanation of symbols

11 is a left coil (coil), 13 is a right coil (coil), 23 is a left inverter circuit (drive circuit), 24 is a right inverter circuit (drive circuit), 30 is a fan device, and 31 is a roaster outer case (cooker). , 43 is a door, 47 is an outer packing (seal member), 48 is an inner packing (seal member), 50 is an upper heater (heater), 51 is a lower heater (heater), 53 is an exhaust duct (exhaust passage), and 54 is An exhaust port, 59 is a flow control chamber, 60 is a deodorizer, and 70 is a control circuit (flow control means, cooking control means).

Claims (2)

A drive circuit for driving a coil for induction heating of the cooking utensil;
A fan device for generating cooling air for cooling the drive circuit;
A cooking chamber in which the front is open and the food is stored;
A heater for heating the food in the cooking chamber;
A door that opens and closes the front of the cooking chamber;
A sealing member for closing the space between the cooking chamber and the door excluding the air blowing port so that a gap-like air blowing port remains between the cooking chamber and the door in the closed state of the door;
The cooling air which is provided outside the cooking chamber enters the cooling air that has passed through the driving circuit, and the flow rate of the cooling air is supplied into the cooking chamber through the blower opening when the door is closed. A flow control chamber for adjusting
An induction heating cooker comprising an exhaust port for discharging the cooling air from the cooking chamber. The cooking contents are controlled by driving and controlling each of the coil and the heater, and cooking can be performed in each of the following 1) first mode to 3) third mode. Control means;
1) 1st form which makes the said coil the operation state in the operation stop state of the said heater
2) A second mode in which the heater is operated when the coil is stopped.
3) A third mode in which both the coil and the heater are in operation.
By controlling the speed of the fan device, the flow rate of the cooling air generated by the fan device is controlled in three stages of low speed, medium speed, and high speed, and the cooking control means is the first mode. In the case where cooking is performed in the third mode and in the case where cooking is performed in the third mode, the rotational speed of the fan device is set to a stepwise high speed in response to a stepwise increase in the heating output of the coil. And when the cooking control means cooks in the second form, the flow control means for setting the rotational speed of the fan device to the medium speed,
The cooking control means includes
When cooking in the third mode, when the rotation speed of the fan device is set to the low speed, the setting result of the operation time of the heater is shortened,
The induction heating cooker according to claim 1 , wherein when the rotation speed of the fan device is set to the high speed, the setting result of the operation time of the heater is extended .

Images