Heating cooker

Abstract

To provide a heating cooker which achieves high convenience and is excellent in durability.SOLUTION: A heating cooker 100 of the invention includes: electric cooking means 5, 7; gas cooking means 9, 11; a first control unit 13; and a second control unit 15. The first control unit 13 has control means 61, temperature detection means 63, and cooling means 65. The cooling means 65 starts cooling of the control means 61 when the electric cooking means 5, 7 start operation or a detection temperature is a first temperature or higher. The second control unit 15 may change fire power of the gas cooking means 9, 11 during operation. The second control unit 15 changes the fire power of the gas cooking means 9, 11 to modified fire power lower than the current fire power and continues the operation of the gas cooking means 9, 11 when the gas cooking means 9, 11 are operated in a state that the detection temperature is higher than or equal to a second temperature higher than the first temperature.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a cooking device.

Background Art

[0002] Patent Document 1 discloses a conventional cooking device. This cooking device includes an electric heating cooking means, a drive control system circuit board, a temperature detection means, a cooling means, a cooling control unit, and a cooling required temperature determination means.

[0003] The electric heating cooking means can cook while heating an object to be cooked by operating with electric power. In this document, the electric heating cooking means is specifically a heating coil and a grill part. The drive control system circuit board controls the operation of the heating coil and the grill part. A plurality of semiconductors are provided on the drive control system circuit board. The temperature detection means detects the temperature of the semiconductor and the temperature of the grill part. The cooling means is specifically a cooling fan and cools the drive control system circuit board. The cooling control unit controls the operation of the cooling fan. The cooling required temperature determination means determines whether cooling of the drive control system circuit board is necessary based on the temperature detected by the temperature detection means.

[0004] In this cooking device, by operating the heating coil, the semiconductor, and thus the drive control system circuit board generate heat. Also, when the grill part is operated, the temperature of the drive control system circuit board rises due to the influence of the heated grill part. And in this cooking device, it is determined whether cooling of the drive control system circuit board is necessary based on the temperature of the semiconductor and the temperature of the grill part detected by the temperature detection means.

[0005] Here, while the cooling necessity temperature determination means determines that cooling of the drive control system circuit board is unnecessary, the cooling control unit stops the operation of the cooling fan. On the other hand, when the cooling necessity temperature determination means determines that cooling of the drive control system circuit board is necessary, the cooling control unit operates the cooling fan. Further, when the cooling necessity temperature determination means determines that the temperature detected by the temperature detection means is high and it is necessary to further cool the drive control system circuit board, the cooling control unit increases the rotation speed of the cooling fan.

[0006] In this way, in this cooking device, the cooling means cools the drive control system circuit board, thereby preventing damage to the drive control system circuit board due to heat. Further, in this cooking device, even when the electric heating cooking means is operating, the operation of the cooling means can be stopped while cooling of the drive control system circuit board is unnecessary.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] By the way, in this type of cooking device, high convenience capable of corresponding to diversification of cooking is required. Therefore, in the above conventional cooking device, in addition to the electric heating cooking means, it is conceivable to provide gas heating cooking means capable of cooking while heating the object to be cooked by combustion of fuel gas.

[0009] However, in this case, since the drive control system circuit board is affected by the combustion of the fuel gas in the gas heating cooking means, it tends to become hot. Therefore, even if the cooling means is operating, there is a risk of insufficient cooling of the drive control system circuit board. As a result, since the drive control system circuit board is easily damaged by heat, a decrease in the durability of the cooking device is a concern. In particular, when heating the object to be cooked by the electric heating cooking means and heating the object to be cooked by the gas heating cooking means simultaneously, the drive control system circuit board tends to become hotter, so insufficient cooling of the drive control system circuit board is more likely to occur. For this reason, the above problems become more prominent.

[0010] The present invention has been made in view of the above-described conventional circumstances, and an object to be solved is to provide a cooking device that exhibits high convenience and excellent durability.

Means for Solving the Problems

[0011] The cooking device of the present invention includes an electric heating cooking means that operates by electricity and can cook while heating an object to be cooked, a gas heating cooking means that can cook while heating the object to be cooked by combustion of fuel gas, a first control unit that performs operation control of the electric heating cooking means, and a second control unit that performs operation control of the gas heating cooking means, The first control unit includes a control means provided with a plurality of semiconductors, a temperature detection means capable of detecting the temperature of the control means or the temperature around the control means as a detected temperature, and a cooling means capable of cooling the control means, The cooling means starts cooling the control means when the electric heating cooking means starts operating or when the detected temperature is equal to or higher than a first temperature, The second control unit can change the heating power of the gas heating cooking means during operation, If the detection temperature is equal to or higher than a second temperature that is higher than the first temperature and the gas heating cooking means is in operation, the second control unit changes the heating power of the gas heating cooking means to a corrected heating power that is lower than the current heating power and continues the operation of the gas heating cooking means, or stops the operation of the gas heating cooking means.

[0012] In the cooking device of the present invention, since it is provided with the electric heating cooking means and the gas heating cooking means, it is possible not only to cook while heating the object to be cooked by the electric heating cooking means, but also to cook while heating the object to be cooked by the gas heating cooking means. Therefore, in this cooking device, it is possible to increase the types of cooking that can be handled or the types of objects to be cooked that can be heated.

[0013] Further, in this cooking device, the first control unit has a control means, a temperature detection means, and a cooling means. The temperature detection means can detect the temperature of the control means or the temperature around the control means as the detection temperature. The cooling means can cool the control means. Here, the cooling means starts cooling the control means when the electric heating cooking means starts operating or when the detection temperature is equal to or higher than the first temperature. On the other hand, the second control unit can change the heating power of the gas heating cooking means.

[0014] And, in this cooking device, if the detection temperature is equal to or higher than the second temperature and the gas heating cooking means is in operation, the second control unit changes the heating power of the gas heating cooking means to the corrected heating power and continues the operation of the gas heating cooking means, or stops the operation of the gas heating cooking means. Here, since the corrected heating power is lower than the heating power before the change to the corrected heating power, even if the operation of the gas heating cooking means is continued by changing to the corrected heating power, the temperature rise of the control means due to the operation of the gas heating cooking means can be suppressed. Also, even when the operation of the gas heating cooking means is stopped, although residual heat is generated in the gas heating cooking means after the operation stops, the temperature rise of the control means due to the operation of the gas heating cooking means can be suppressed.

[0015] Thus, in this cooking device, even when the gas cooking means operates to cook the object to be cooked, it is difficult for insufficient cooling of the control means by the cooling means to occur. As a result, in this cooking device, damage to the control means due to heat can be suitably prevented.

[0016] Therefore, the cooking device of the present invention exhibits high convenience and excellent durability.

[0017] In the cooking device of the present invention, it is preferable that the cooling means starts cooling the control means if the detected temperature is equal to or higher than the first temperature even when the electric cooking means is stopped.

[0018] In this case, for example, it is possible to suitably suppress an increase in the temperature of the control means due to the environment around the cooking device, such as the air temperature at the location where the cooking device is installed.

[0019] Further, during the operation of the gas cooking means after the fire power is changed to the corrected fire power, it is preferable that the second control unit increases the fire power to be greater than the corrected fire power if the detected temperature is lower than the second temperature.

[0020] When the operation of the gas cooking means is continued after changing to the corrected fire power, the cooking efficiency, such as the heating time required for cooking the object to be cooked, inevitably decreases compared to the case where the object to be cooked is heated with the fire power before changing to the corrected fire power. In this regard, in this cooking device, after the fire power of the gas cooking means is changed to the corrected fire power, if the detected temperature is lower than the second temperature, the second control unit increases the fire power of the gas cooking means to be greater than the corrected fire power. Thereby, in this cooking device, while suitably preventing damage to the control means due to heat, it is possible to suppress a decrease in the cooking efficiency by the gas cooking means. For this reason, this cooking device can have higher convenience.

[0021] In the cooking device of the present invention, the second control unit may be capable of automatic cooking control for automatically cooking an object to be cooked by the gas heating cooking means based on cooking conditions. The cooking conditions may include the cooking time for the object to be cooked. And, if the second control unit is executing the automatic cooking control in a state where the detected temperature is equal to or higher than the second temperature, it is preferable to change the heating power to the corrected heating power and, among the cooking conditions, change at least the cooking time and continue the automatic cooking control.

[0022] In this case, by the automatic cooking control, automatic cooking of the object to be cooked by the gas heating cooking means becomes possible. Here, in this cooking device, if the second control unit is executing the automatic cooking control in a state where the detected temperature is equal to or higher than the second temperature, the heating power of the gas heating cooking means is changed to the corrected heating power and the cooking conditions are also changed. At this time, the cooking conditions changed by the second control unit include at least the cooking time for the object to be cooked. For this reason, in this cooking device, since the cooking time is also changed as the heating power of the gas heating cooking means is changed to the corrected heating power, the automatic cooking of the object to be cooked can be suitably performed. By these, the convenience of this cooking device can be further enhanced.

Effect of the Invention

[0023] The cooking device of the present invention exhibits high convenience and excellent durability.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0026] The cooking device 100 of the embodiment includes a housing 1 shown in FIG. 1, a top plate 3, a first heating coil 5, a second heating coil 7, a heating grill 9, a stove burner 11, a first control unit 13, and a second control unit 15 shown in FIG. 2. The first heating coil 5 and the second heating coil 7 are examples of the "electric cooking means" in the present invention. Also, the heating grill 9 and the stove burner 11 are examples of the "gas cooking means" in the present invention. This cooking device 100 is installed in a kitchen (not shown) of a house.

[0027] In this embodiment, the front-back direction and the up-down direction of the cooking device 100 are defined by the arrows shown in FIG. 1. Also, in this embodiment, with reference to the situation where a user (not shown) of the cooking device 100 faces the cooking device 100 directly from the front, the right side of the user is defined as the right side of the cooking device 100, and the left side of the user is defined as the left side of the cooking device 100 to define the left-right direction of the cooking device 100. These front-back direction, up-down direction, and left-right direction are orthogonal to each other. And in FIG. 2, the front-back direction and the left-right direction of the cooking device 100 are defined corresponding to FIG. 1.

[0028] As shown in FIGS. 1 and 2, the housing 1 has a front wall 1a, a rear wall 1b, a right wall 1c, a left wall 1d, and a bottom wall 1e. The front wall 1a is located at the front end of the housing 1 and has a rectangular plate shape extending in the left-right direction and the up-down direction. The rear wall 1b is located at the rear end of the housing 1 and has a rectangular plate shape extending in the left-right direction and the up-down direction. The front wall 1a and the rear wall 1b are arranged at a distance from each other in the front-rear direction and are parallel to each other in the left-right direction. Thus, the front wall 1a constitutes the front part of the housing 1, and the rear wall 1b constitutes the rear part of the housing 1.

[0029] The right wall 1c is between the front wall 1a and the rear wall 1b and is located at the right end of the housing 1. The right wall 1c has a rectangular plate shape extending in the front-rear direction and the up-down direction, with its front end connected to the right end of the front wall 1a and its rear end connected to the right end of the rear wall 1b. The left wall 1d is between the front wall 1a and the rear wall 1b and is located at the left end of the housing 1. The left wall 1d has a rectangular plate shape extending in the front-rear direction and the up-down direction, with its front end connected to the left end of the front wall 1a and its rear end connected to the left end of the rear wall 1b. In this way, the right wall 1c and the left wall 1d are parallel to each other in the front-rear direction while being separated from each other in the left-right direction, and each constitutes the right side part and the left side part of the housing 1.

[0030] The bottom wall 1e has a plate shape extending in the front-rear direction and the left-right direction and is arranged between the front wall 1a, the rear wall 1b, the right wall 1c, and the left wall 1d. The bottom wall 1e has its front end connected to the lower part of the front wall 1a, its rear end connected to the lower part of the rear wall 1b, its right end connected to the lower part of the right wall 1c, and its left end connected to the lower part of the left wall 1d. Thus, the bottom wall 1e constitutes the bottom of the housing 1 while being surrounded by the front wall 1a, the rear wall 1b, the right wall 1c, and the left wall 1d.

[0031] These front wall 1a, rear wall 1b, right wall 1c, left wall 1d, and bottom wall 1e make the housing 1 have a substantially rectangular box shape with an open upper part. Here, the housing 1 has a rectangular shape with a longer length in the left-right direction than in the front-rear direction. Note that the lengths of the housing 1 in the front-rear direction, the left-right direction, and the up-down direction can be designed as appropriate.

[0032] As shown in FIG. 1, on the front wall 1a, in addition to the first operation unit 41a and the second operation unit 41b being provided, an opening 91 is formed. The first operation unit 41a is composed of a plurality of operation buttons 411 and one liquid crystal panel 412. The first operation unit 41a can operate the first and second heating coils 5 and 7, and can also operate the heating grill 9. The second operation unit 41b is constituted by an operation dial and can operate the stove burner 11. In addition to the respective components of these first and second operation units 41a and 41b, the positions of the first and second operation units 41a and 41b on the front wall 1a can be designed appropriately. Also, the first operation unit 41a may be provided on the top plate 3. Further, one operation unit capable of operating the first and second heating coils 5 and 7, the heating grill 9, and the stove burner 11 may be provided on the front wall 1a, or four operation units corresponding individually to the first and second heating coils 5 and 7, the heating grill 9, and the stove burner 11 may be provided on the front wall 1a. Also, any one of the first and second heating coils 5 and 7 and the heating grill 9 may be operated by an operation dial, and the stove burner 11 may be operated by an operation button.

[0033] The opening 91 is disposed between the first operation unit 41a and the second operation unit 41b. The opening 91 is opened in a rectangular shape on the front wall 1a. In FIG. 2 and the like, for ease of explanation, the illustration of the first and second operation units 41a and 41b is omitted.

[0034] Also, as shown in FIG. 2, on the rear wall 1b, a ventilation part 21 is provided. The ventilation part 21 is constituted by a plurality of ventilation holes 211 penetrating the rear wall 1b in the front-rear direction. Through this ventilation part 21, the inside and the outside of the housing 1 communicate with each other. Note that the ventilation part 21 may be provided at the rear part of the top plate 3 or the like.

[0035] As shown in FIG. 1, the top plate 3 is formed in a rectangular plate shape. More specifically, the top plate 3 is formed in a rectangular plate shape whose length in the left-right direction is longer than the length in the front-rear direction so as to correspond to the shape of the housing 1.

[0036] The top plate 3 is fixed to the upper part of the housing 1 and covers the inside of the housing 1 from above. Also, an exhaust port 3a is formed at the left rear part of the top plate 3. The exhaust port 3a is formed in a rectangular shape with a longer length in the left-right direction than in the front-rear direction and penetrates the top plate 3 in the vertical direction. Thereby, the exhaust port 3a communicates the inside and the outside of the housing 1 in a state where the top plate 3 is fixed to the upper part of the housing 1. In addition to the position of the exhaust port 3a on the top plate 3, the shape of the exhaust port 3a can be appropriately designed. Also, the exhaust port 3a may be formed on the rear wall 1b or the like of the housing 1.

[0037] Also, an exhaust cover 30 is attached to the top plate 3. The exhaust cover 30 has a rectangular shape corresponding to the exhaust port 3a and covers the exhaust port 3a from above. Also, a plurality of punch holes 301 are formed in the exhaust cover 30.

[0038] Furthermore, a first guide mark 31 and a second guide mark 32 are provided on the top plate 3. The first guide mark 31 and the second guide mark 32 have the same annular shape and are located on the top plate 3 to the right of the cooker burner 11 and in front of the exhaust port 3a. Also, the first guide mark 31 and the second guide mark 32 are arranged at intervals in the front-rear direction, and the first guide mark 31 is arranged behind the second guide mark 32.

[0039] Also, a first cooking temperature sensor 33 and a second cooking temperature sensor 34 are provided on the top plate 3. The first cooking temperature sensor 33 is arranged inside the first guide mark 31, and the second cooking temperature sensor 34 is arranged inside the second guide mark 32.

[0040] The first cooking temperature sensor 33 is capable of detecting the temperature of the object to be cooked (not shown) disposed inside the first guide mark 31 on the top plate 3. Similarly, the second cooking temperature sensor 34 is capable of detecting the temperature of the object to be cooked disposed inside the second guide mark 32 on the top plate 3. Here, the first and second cooking temperature sensors 33 and 34 detect the temperature of the object to be cooked through a cooking container (not shown) such as a frying pan or a pot in which the object to be cooked is accommodated. Note that a plurality of the first and second cooking temperature sensors 33 and 34 may be provided inside the first and second guide marks 31 and 32, respectively.

[0041] As shown in FIG. 2, the first heating coil 5 and the second heating coil 7 are provided inside the housing 1. At this time, the first heating coil 5 is disposed at a position directly below the first guide mark 31 of the top plate 3 inside the housing 1. On the other hand, the second heating coil 7 is disposed at a position directly below the second guide mark 32 inside the housing 1. Thus, the first heating coil 5 is disposed rearward of the second heating coil 7 inside the housing 1.

[0042] The first heating coil 5 and the second heating coil 7 have the same configuration and the same performance. Further, since both of these first heating coil 5 and second heating coil 7 have the same configuration as a known heating coil, a detailed description of the configuration will be omitted. Note that the first heating coil 5 and the second heating coil 7 may have different sizes or different performances.

[0043] The heating grill 9 includes a heating chamber 9a, a grill door 9b, and a grill tray 9c shown in FIG. 1. As shown in FIGS. 2 to 4, the heating chamber 9a is formed in a substantially rectangular box shape extending in the front-rear direction and the left-right direction. The front end of the heating chamber 9a is open. Although not shown, a plurality of gas burners are provided in the heating chamber 9a. Each gas burner burns fuel gas.

[0044] The heating chamber 9a is provided inside the housing 1. More specifically, the heating chamber 9a is provided at a position below the first heating coil 5 and the second heating coil 7 inside the housing 1. Also, the front end of the heating chamber 9a faces the opening 91 of the front wall 1a. Thereby, the internal space of the heating chamber 9a communicates with the outside of the housing through the opening 91. Also, although detailed illustration is omitted, the internal space of the heating chamber 9a communicates with the exhaust port 3a through an exhaust pipe. Thereby, the air in the internal space is discharged from the exhaust port 3a to the outside of the housing 1.

[0045] The grill door 9b is provided so as to be movable in the front-rear direction with respect to the front wall 1a. As shown by the solid line in FIG. 1, the grill door 9b can close the opening 91 by moving to the rearmost position. The grill tray 9c is connected to the grill door 9b. As shown by the two-dot chain line in FIG. 1, the grill tray 9c can move in the front-rear direction with respect to the housing 1 as the grill door 9b moves in the front-rear direction. A cooking container containing the object to be cooked is placed on the grill tray 9c. Thereby, the heating grill 9 heats the object to be cooked by each gas burner in the heating chamber 9a. For this reason, the heating grill 9, particularly the heating chamber 9a, becomes hot during operation.

[0046] The stove burner 11 is provided on the top plate 3. More specifically, the stove burner 11 is provided on the top plate 3 to the left of the first and second guide marks 31, 32, and thus the first and second heating coils 5, 7.

[0047] Also, a cooking plate 11a is provided on the top plate 3 so as to surround the stove burner 11. A cooking container containing the object to be cooked is placed on the cooking plate 11a. The stove burner 11 heats the object to be cooked by burning fuel gas. Thereby, the stove burner 11 becomes hot during operation. Note that a plurality of stove burners 11 may be provided on the top plate 3.

[0048] As shown in FIG. 2, the first control unit 13 includes a first control board 61, a temperature sensor 63, and a cooling fan 65. The first control board 61 is an example of the "control means" in the present invention, the temperature sensor 63 is an example of the "temperature detection means" in the present invention, and the cooling fan 65 is an example of the "cooling means" in the present invention.

[0049] The first control board 61 has a circuit board 61a in a rectangular plate shape. A plurality of semiconductors 61b are provided on the circuit board 61a. The semiconductors 61b include IGBT elements. In addition, a first fin 67a and a second fin 67b are provided on the first control board 61.

[0050] The first control board 61 is disposed inside the housing 1 with the circuit board 61a in a so-called vertical orientation. As a result, the first control board 61 is disposed on the right side of the heating chamber 9a of the heating grill 9 inside the housing 1. In the first control board 61, the first fin 67a is located between the circuit board 61a and the bottom wall 1e. On the other hand, the second fin 67b is located in front of the circuit board 61a facing the front wall 1a.

[0051] The temperature sensor 63 is provided on the first control board 61. As a result, the temperature sensor 63 can detect the temperature of the first control board 61 as the detected temperature. In addition, the temperature sensor 63 can transmit the detected temperature to the first control board 61. Note that the temperature sensor 63 may be provided at a position separated from the first control board 61 as long as it can detect the temperature of the first control board 61 as the detected temperature.

[0052] The temperature sensor 63 can detect the detected temperature not only when the object to be cooked is heated by at least one of the first and second heating coils 5 and 7, the heating grill 9, and the stove burner 11, but also when the object to be cooked is not heated by any of the first and second heating coils 5 and 7, the heating grill 9, and the stove burner 11. Note that the configuration of the temperature sensor 63 is the same as that of a known temperature sensor, and a detailed description of the configuration will be omitted.

[0053] The cooling fan 65 is provided inside the housing 1 and is located to the right of the heating chamber 9a. Further, the cooling fan 65 is located behind the first heating coil 5 and the first control board 61.

[0054] The cooling fan 65 has a case 65a and a fan body 65b. The case 65a is attached to the bottom wall 1e via a fixing base 18 in order to adjust the height with respect to the first and second heating coils 5 and 7 and the first control board 61.

[0055] An air intake port 651 and an air outlet 652 are formed in the case 65a. The air intake port 651 is formed in the upper rear part of the case 65a. The air outlet 652 is formed at the front end of the case 65a. Although not shown, a motor for rotating the fan body 65b is housed inside the case 65a. The fan body 65b is housed inside the case 65a with a part of itself exposed from the air intake port 651.

[0056] In the cooling fan 65, when the fan body 65b rotates inside the case 65a, the air inside the housing 1 is sucked into the case 65a from the air intake port 651. Then, the cooling fan 65 blows the air sucked into the case 65a as cooling air into the housing 1 from the air outlet 652. That is, as shown by the white arrow in FIG. 2, the cooling fan 65 can blow cooling air toward the first and second heating coils 5 and 7 and the first control board 61. Note that the cooling fan 65 may have other configurations.

[0057] In the first control unit 13, the first control board 61 is connected so as to be energizable to a power supply (not shown) provided outside the housing 1, and is also connected to the first operation unit 41a provided on the front wall 1a. Further, the first control board 61 is connected so as to be energizable to the first heating coil 5 and the second heating coil 7 respectively. Thereby, the first control board 61 can supply power to the first heating coil 5 and the second heating coil 7 respectively, and can control the operation of the first heating coil 5 and the second heating coil 7 according to the operation of the first operation unit 41a. At this time, the first control board 61 can supply power and control the operation individually to the first heating coil 5 and the second heating coil 7.

[0058] Furthermore, the first control board 61 is connected so as to be energizable to the cooling fan 65. Thereby, the first control board 61 can control the operation of the cooling fan 65 by supplying power to the cooling fan 65. At this time, the first control board 61 can control not only the operation and stop of the cooling fan 65, but also the rotation speed of the fan body 65b during operation.

[0059] Also, the first control board 61 is connected to the first cooking temperature sensor 33 and the second cooking temperature sensor 34 respectively. Thereby, the first control board 61 can receive the temperatures detected by the first cooking temperature sensor 33 and the second cooking temperature sensor 34 respectively. Then, the first control board 61 determines the temperature received from the first cooking temperature sensor 33 as the current temperature of the first heating coil 5, and determines the temperature received from the second cooking temperature sensor 34 as the current temperature of the second heating coil 7.

[0060] Furthermore, the first control board 61 determines its current temperature based on the detected temperature transmitted from the temperature sensor 63. Specifically, if the detected temperature is the first temperature, the first control board 61 determines that it is currently at the first temperature. Similarly, if the detected temperature is the second temperature, the first control board 61 determines that it is currently at the second temperature, and if the detected temperature is the third temperature, the first control board 61 determines that it is currently at the third temperature.

[0061] Here, the first temperature is the lowest among the first to third temperatures, and the third temperature is the highest among the first to third temperatures. And the second temperature is higher than the first temperature and lower than the third temperature. Note that the first to third temperatures are examples of detected temperatures, and if the first control board 61 is at a temperature other than the first to third temperatures, the temperature sensor 63 detects that temperature as the detected temperature.

[0062] Also, the first control board 61 is communicably connected to a second control board 73 described later. Thereby, the first control board 61 can transmit the current temperature of itself, that is, the temperature detected by the temperature sensor 63, to the second control board 73.

[0063] The second control unit 15 has a fuel gas supply device 71 and a second control board 73. The fuel gas supply device 71 is attached to the bottom wall 1e of the housing 1. Thereby, the fuel gas supply device 71 is disposed inside the housing 1 to the left of the heating chamber 9a of the heating grill 9.

[0064] The fuel gas supply device 71 can supply fuel gas from the outside of the housing 1 to the heating grill 9 and the stove burner 11. The fuel gas supply device 71 has a valve portion 71a and an adjustment portion 71b.

[0065] Specifically, the valve portion 71a is an electromagnetic on-off valve. When the valve portion 71a is in an open valve state, it supplies fuel gas to the heating grill 9 and the stove burner 11. On the other hand, when the valve portion 71a is in a closed valve state, it shuts off the supply of fuel gas to the heating grill 9 and the stove burner 11. For this reason, the heating grill 9 and the stove burner 11 cannot burn fuel gas when the valve portion 71a is in the closed valve state, and it becomes impossible to heat the object to be cooked. Note that the supply and shut-off of fuel gas to the heating grill 9 and the stove burner 11 can be performed individually.

[0066] The adjustment unit 71b has a stepping motor 710. The adjustment unit 71b adjusts the supply amount of fuel gas to the heating grill 9 and the supply amount of fuel gas to the stove burner 11 by the operation of the stepping motor 710. Note that the adjustment of the supply amount of fuel gas to the heating grill 9 and the stove burner 11 can be performed individually.

[0067] When the valve unit 71a of the fuel gas supply device 71 is in the closed valve state, the adjustment unit 71b adjusts the supply amount of fuel gas to the heating grill 9 and the stove burner 11, thereby adjusting the magnitude of the heating power during the operation of the heating grill 9 and the stove burner 11, respectively.

[0068] The second control board 73 has a circuit board 73a in the shape of a rectangular plate. A plurality of semiconductors 73b are provided on the circuit board 73a. The second control board 73 is attached to the fuel gas supply device 71. As a result, the second control board 73 is also arranged inside the housing 1.

[0069] The second control board 73 is electrically connected to the first control board 61 so that the second control board 73 is energized from the first control board 61 when the first control board 61 is connected to a power source.

[0070] Further, the second control board 73 is connected to the first operation unit 41a and the second operation unit 41b provided on the front wall 1a. Thereby, the second control board 73 performs operation control of the fuel gas supply device 71 according to the operations of the first operation unit 41a and the second operation unit 41b. In this way, the second control board 73 performs operation control of the heating grill 9 and the stove burner 11 through the operation control of the fuel gas supply device 71. That is, the second control board 73 supplies fuel gas to the heating grill 9 and the stove burner 11 to operate the heating grill 9 and the stove burner 11 by opening the valve unit 71a. Further, the second control board 73 shuts off the supply of fuel gas to the heating grill 9 and the stove burner 11 to stop the heating grill 9 and the stove burner 11 by closing the valve unit 71a. Furthermore, the second control board 73 adjusts the magnitude of the heating power during the operation of the heating grill 9 and the stove burner 11 through the adjustment unit 71b.

[0071] Further, the second control board 73 determines the current temperature of the first control board 61 based on the temperature transmitted from the first control board 61, that is, the detected temperature detected by the temperature sensor 63. Thereby, for example, if the first temperature is transmitted from the first control board 61 to the second control board 73, the second control board 73 determines that the first control board 61 is currently at the first temperature.

[0072] Furthermore, when the second control board 73 determines that the temperature of the first control board 61 is the second temperature, or when the second control board 73 determines that the temperature of the first control board 61 is the third temperature, if the heating grill 9 or the stove burner 11 is operating, the second control board 73 reduces the heating power of the operating heating grill 9 or stove burner 11 or stops the operation.

[0073] In addition, the second control board 73 stores a plurality of automatic cooking programs corresponding to the types of cooking for the object to be cooked. Each automatic cooking program has cooking conditions set therein. The cooking conditions include, in addition to the heating grill 9 or the stove burner 11 to be selected for automatic cooking, the heating power of the heating grill 9 or the stove burner 11 during cooking, and the cooking time corresponding to the type of cooking, that is, the heating time for the object to be cooked. Thus, in this heating cooking device 100, the second control board 73 controls the operation of the heating grill 9 or the stove burner 11 based on the cooking conditions of the automatic cooking program, so that the heating grill 9 or the stove burner 11 automatically cooks the object to be cooked.

[0074] Here, the second control board 73 can temporarily change the content of the heating power of the heating grill 9 or the stove burner 11 and the cooking time in the cooking conditions as needed. In addition, the second control board 73 can add or change the types of automatic cooking programs it stores through the Internet or the like.

[0075] In this heating cooking device 100 configured as described above, it is possible to heat the object to be cooked by each of the first heating coil 5, the second heating coil 7, the heating grill 9, and the stove burner 11.

[0076] Here, in this heating cooking device 100, for example, while the object to be cooked is being heated by the first heating coil 5, it is possible to heat an object to be cooked different from the object being heated by the first heating coil 5 with the second heating coil 7. Also, while the object to be cooked is being heated by at least one of the first heating coil 5 and the second heating coil 7, it is possible to heat different objects to be cooked with the heating grill 9 and the stove burner 11. Similarly, while the object to be cooked is being heated by the heating grill 9, it is possible to heat different objects to be cooked with the first and second heating coils 5 and 7 and the stove burner 11, respectively. Further, while the object to be cooked is being heated by the stove burner 11, it is possible to heat different objects to be cooked with the first and second heating coils 5 and 7 and the heating grill 9, respectively.

[0077] Incidentally, the first control board 61 is likely to generate heat by controlling the operation of the first and second heating coils 5 and 7. In particular, the semiconductor 61b includes an IGBT element, and this IGBT element is likely to become hot by controlling the operation of the first and second heating coils 5 and 7. Further, when the heating grill 9 and the stove burner 11 are also operating while the first heating coil 5 and the second heating coil 7 are operating, the first control board 61 is inevitably affected not only by the heat generated by controlling the operation of the first and second heating coils 5 and 7, but also by the heat from the combustion of the fuel gas in the heating grill 9 and the stove burner 11. For this reason, in such a case, there is more concern about the reduction in the durability of the semiconductor 61b and thus the first control board 61 due to heat.

[0078] In this regard, in this cooking device 100, it is possible to suitably prevent the reduction in the durability of the first control board 61 due to heat. Hereinafter, this operation will be specifically described.

[0079] In this cooking device 100, when the first control board 61 starts to be connected to the power supply, the temperature sensor 63 starts to detect the temperature of the first control board 61 (step S101 in FIG. 3). Here, in this cooking device 100, while the first control board 61 is in a state of being connected to the power supply so as to be energizable, the temperature sensor 63 continuously detects the temperature of the first control board 61 regardless of whether the first heating coil 5, the second heating coil 7, the heating grill 9, and the stove burner 11 are operating.

[0080] Then, the first control board 61 determines its current temperature based on the temperature detected by the temperature sensor 63, that is, the detected temperature. Also, the first control board 61 transmits its current temperature to the second control board 73. Here, if the temperature of the first control board 61 is equal to or higher than the first temperature (step S102: YES), the first control board 61 operates the fan body 65b of the cooling fan 65 at the initial rotation speed (step S103). Thereby, cooling air is blown from the cooling fan 65 to the first control board 61 to cool the first control board 61. At this time, cooling air is also blown from the cooling fan 65 to the first and second heating coils 5 and 7. In this embodiment, the first temperature is set to approximately 80°C.

[0081] On the other hand, if the temperature of the first control board 61 is lower than the first temperature (step S102: NO), the first control board 61 determines whether at least one of the first heating coil 5 and the second heating coil 7 is currently operating and whether the object to be cooked is being heated by the first heating coil 5 or the second heating coil 7 (step S110). If at least one of the first heating coil 5 and the second heating coil 7 is currently operating (step S110: YES), the first control board 61 operates the fan body 65b of the cooling fan 65 at the initial rotation speed (step S103).

[0082] That is, in this cooking device 100, even if the temperature of the first control board 61 has not reached the first temperature, if at least one of the first heating coil 5 and the second heating coil 7 is operating, the first control board 61 is cooled by the cooling fan 65. In this state, even if the temperature detected by the temperature sensor 63 exceeds the first temperature but has not reached the second temperature, the first control board 61 returns to the process of step S102 while continuing to cool the first control board 61 by the cooling fan 65 (step S104: NO).

[0083] On the one hand, in step S110, if neither the first heating coil 5 nor the second heating coil 7 is operating (step S110: NO), the first control board 61 determines whether the cooling fan 65 is currently operating (step S111). Here, if the cooling fan 65 is not operating (step S111: NO), the first control board 61 determines that there is no need for self-cooling at the current time and returns to the process of step S102.

[0084] On the contrary, if the cooling fan 65 is operating in step S110 (step S111: YES), it can be said that as a result of the cooling of the first control board 61 by the cooling fan 65, the temperature of the first control board 61 has become lower than the first temperature. Therefore, when the cooling fan 65 is operating in step S111, the first control board 61 determines that sufficient self-cooling has been performed and further cooling is unnecessary. Thereby, the first control board 61 stops the operation of the cooling fan 65 and then returns to the process of step S102 (step S112).

[0085] Also, in step S103 described above, even when cooling the first control board 61 by the cooling fan 65 while rotating the fan body 65b at the initial rotation speed, if the temperature sensor 63 detects a temperature equal to or higher than the second temperature, that is, if the temperature of the first control board 61 is equal to or higher than the second temperature (step S104: YES), the first control board 61 increases the rotation speed of the fan body 65b to the maximum rotation speed (step S105). Thus, the cooling fan 65 cools the first control board 61 with the maximum cooling capacity.

[0086] As a result, if the temperature of the first control board 61 becomes lower than the second temperature (step S106: NO), the first control board 61 changes the rotation speed of the fan body 65b to the initial rotation (step S107). Thereby, the first control board 61 continues to cool the first control board 61 by the cooling fan 65 and returns to the process of step S102. In this embodiment, the second temperature is set to approximately 100°C.

[0087] On the other hand, even when the cooling fan 65 cools the first control board 61 with the maximum cooling capacity, if the temperature of the first control board 61 is equal to or higher than the second temperature (step S106: YES), the second control board 73 determines whether the heating grill 9 is currently heating the object to be cooked through the operation control of the fuel gas supply device 71 (step S201 in FIG. 4).

[0088] Here, if the heating grill 9 is not currently heating the object to be cooked (step S201: NO), and the temperature of the first control board 61 has not reached the third temperature (step S210: NO), the first control board 61 returns to the process of step S106 shown in FIG. 3. That is, the cooling fan 65 continues to cool the first control board 61 with the maximum cooling capacity. In this embodiment, the third temperature is set to approximately 120°C.

[0089] On the contrary, in step S210 of FIG. 4, if the temperature of the first control board 61 is equal to or higher than the third temperature (step S210: YES), and the object to be cooked is being heated in at least one of the first heating coil 5 and the second heating coil 7 (step S211: YES), the first control board 61 continues to heat the object to be cooked while reducing the outputs of the operating first and second heating coils 5 and 7 (step S212). Then, the first control board 61 returns to the process of step S106 shown in FIG. 3.

[0090] In this way, in step S212 of FIG. 4, when the first control board 61 reduces the outputs of the first and second heating coils 5 and 7, in this cooking device 100, while continuing to heat the object to be cooked with the first and second heating coils 5 and 7, the processing load on the semiconductor 61b due to the operation control of the first and second heating coils 5 and 7 is reduced, and the temperature rise of the first control board 61 is suppressed. As a result, in this cooking device 100, the cooling effect of the first control board 61 by the cooling fan 65 is improved, and the temperature of the first control board 61 is prevented from reaching the third temperature. Thus, when the heating of the object to be cooked is completed, the first control board 61 stops the operation of the first and second heating coils 5 and 7. Note that the first control board 61 may stop the operation of the first and second heating coils 5 and 7 without reducing the outputs of the first and second heating coils 5 and 7 in step S212. Further, if the cooling effect of the first control board 61 by the cooling fan 65 cannot be sufficiently exerted even when the first control board 61 gradually reduces the outputs of the first and second heating coils 5 and 7, the first control board 61 may stop the operation of the first and second heating coils 5 and 7.

[0091] Also, in step S211 shown in FIG. 4, even when neither the first heating coil 5 nor the second heating coil 7 is heating the object to be cooked (step S211: NO), the first control board 61 returns to the process of step S106 shown in FIG. 3.

[0092] On the other hand, in step S201 shown in FIG. 4, when the heating grill 9 is currently heating the object to be cooked (step S201: YES), the second control board 73 determines whether automatic cooking control is being executed (step S202).

[0093] Here, when the second control board 73 is not executing automatic cooking control (step S202: NO), the second control board 73 changes the heating power of the heating grill 9 to a corrected power that is lower than the current heating power (step S203). That is, after changing to the corrected power, the second control board 73 continues to heat the object to be cooked by the heating grill 9 until the user performs a stop operation on the heating grill 9 through the first operation unit 41a shown in FIG. 1. Note that the change of the second control board 73 to the corrected power is, for example, when the current heating power of the heating grill 9 is "high heat", changing it to "medium heat" or "low heat" which are lower than "high heat", or changing it to 80% or 50% of the current heating power of the heating grill 9, etc.

[0094] And when a stop operation is performed by the user (step S204: YES), the second control board 73 stops the operation of the heating grill 9 and ends the heating of the object to be cooked by the heating grill 9 (step S205). Thus, after the second control board 73 stops the operation of the heating grill 9, the first control board 61 returns to the process of step S106 shown in FIG. 3.

[0095] On the other hand, until a stop operation is performed by the user (step S204: NO in FIG. 4), the second control board 73 continues to judge the temperature of the first control board 61 based on the temperature transmitted from the first control board 61. And when the temperature of the first control board 61 becomes lower than the second temperature, that is, when the second control board 73 judges that the temperature of the first control board 61 is lower than the second temperature (step S301: YES shown in FIG. 5), the second control board 73 increases the heating power of the heating grill 9 to be higher than the corrected power (step S302). At this time, if the heating power is higher than the corrected power, the second control board 73 may return to the heating power of the heating grill 9 before changing to the corrected power, or may change to a heating power lower than the heating power of the heating grill 9 before changing to the corrected power. Further, the second control board 73 may change the heating power of the heating grill 9 to a heating power higher than the heating power before changing to the corrected power.

[0096] Even if the second control board 73 increases the heating power of the heating grill 9 beyond the corrected power, if the temperature of the first control board 61 is lower than the second temperature (step S303: NO), the second control board 73 continues to heat the object to be cooked by the heating grill 9 with the heating power increased in step S302 until the user performs a stop operation on the heating grill 9. Conversely, if as a result of increasing the heating power of the heating grill 9 beyond the corrected power in step S302, the temperature of the first control board 61 again becomes equal to or higher than the second temperature (step S303: YES), the second control board 73 changes the heating power of the heating grill 9 back to the corrected power (step S304).

[0097] On the other hand, in step S301, even if the temperature of the first control board 61 is equal to or higher than the second temperature (step S301: NO), but has not reached the third temperature (step S310: NO), the second control board 73 continues to heat the object to be cooked by the heating grill 9 while maintaining the heating power of the heating grill 9 at the corrected power. Also, the first control board 61 returns to the process of step S106 shown in FIG. 3.

[0098] In contrast, if changing the heating power of the heating grill 9 to the corrected power causes the temperature of the first control board 61 to become equal to or higher than the third temperature, that is, if the second control board 73 determines that the temperature of the first control board 61 is equal to or higher than the third temperature (step S310: YES), the second control board 73 stops the operation of the heating grill 9 even without a stop operation by the user (step S311). Therefore, in this case, the cooking of the object to be cooked on the heating grill 9 ends midway because the heating by the heating grill 9 ends.

[0099] Also, after the second control board 73 stops the operation of the heating grill 9 in step S311, the first control board 61 waits until the standby time elapses (step S312) and does not judge its own temperature during the standby time. Therefore, the first control board 61 does not transmit the temperature to the second control board 73 during the standby time. Here, in this embodiment, the standby time is set to 20 seconds. Note that the standby time can be set as appropriate.

[0100] Then, after the standby time has elapsed, the first control board 61 determines its own temperature (step S313). Here, if it is lower than the third temperature (step S313: NO), the first control board 61 returns to the process of step S106 shown in FIG. 3. On the other hand, even after the standby time has elapsed, if the temperature of the first control board 61 is equal to or higher than the third temperature (step S313: YES), the first control board 61 determines whether the food to be cooked is being heated in at least one of the first heating coil 5 and the second heating coil 7 (step S314).

[0101] And if the food to be cooked is being heated by the first and second heating coils 5 and 7 (step S314: YES), the first control board 61 stops the first and second heating coils 5 and 7 that are operating (step S315). Thereby, the heating of the food to be cooked by the first and second heating coils 5 and 7 ends. Also, at this time, if the food to be cooked is being heated by the oven burner 11, the second control board 73 also stops the operation of the oven burner 11. In this way, when the temperature of the first control board 61 is equal to or higher than the third temperature in step S313, the cooking heater 100 is emergently stopped. Therefore, in the cooking heater 100 at this time, even if the food to be cooked is being heated, the heating of the food to be cooked is not performed in any of the first and second heating coils 5 and 7, the heating grill 9, and the oven burner 11.

[0102] Also, in step S314, even if the food to be cooked is not being heated by the first and second heating coils 5 and 7 (step S314: NO), if the food to be cooked is being heated by the oven burner 11, the second control board 73 stops the operation of the oven burner 11. Thus, also in this case, the cooking heater 100 is emergently stopped.

[0103] On the other hand, in step S202 shown in FIG. 4, when the second control board 73 is executing automatic cooking control of the heating grill 9 (step S202: YES), the second control board 73 changes the current heating power of the heating grill 9 to the corrected heating power (step S221). That is, when the automatic cooking control is performed, the heating grill 9 is currently operating at the heating power set in the cooking conditions. Therefore, the second control board 73 changes it to a corrected heating power lower than that power.

[0104] Furthermore, the second control board 73 continues the automatic cooking while changing the cooking time preset as a cooking condition (step S222). Specifically, the second control board 73 makes the cooking time longer than the initial time by the amount of the change to the corrected heating power. In this way, the second control board 73 continues the automatic cooking control of the heating grill 9 according to the newly reset cooking conditions. When the cooking conditions are achieved, the second control board 73 ends the automatic cooking control of the heating grill 9 (step S223) and stops the operation of the heating grill 9 (step S224). Also, after the automatic cooking control of the heating grill 9 ends, the first control board 61 returns to the process of step S106 shown in FIG. 3. Note that as a result of continuing the automatic cooking of the heating grill 9 in step S222, if the temperature of the first control board 61 becomes equal to or higher than the third temperature, the second control board 73 stops the operation of the heating grill 9 and ends the automatic cooking.

[0105] Here, in the previous description, the situation where the heating grill 9 is heating the object to be cooked when the temperature of the first control board 61 is equal to or higher than the second temperature has been taken as an example. However, the same processing is performed even in the situation where the stove burner 11 is heating the object to be cooked when the temperature of the first control board 61 is equal to or higher than the second temperature.

[0106] Thus, in this cooking appliance 100, not only can the object to be cooked be cooked while being heated by the first heating coil 5 and the second heating coil 7, but it can also be cooked while being heated by the heating grill 9 and the stove burner 11. For this reason, in this cooking appliance 100, it is possible to increase the types of cooking that can be supported and the types of objects to be cooked that can be heated.

[0107] And in this cooking appliance 100, in a state where the detected temperature detected by the temperature sensor 63 is equal to or higher than the second temperature, for example, if the heating grill 9 is operating among the heating grill 9 and the stove burner 11, the second control board 73 changes the heating power of the heating grill 9 to the corrected heating power and continues the operation of the heating grill 9. Here, since the corrected heating power is lower than the heating power of the heating grill 9 before being changed to the corrected heating power, even if the operation of the heating grill 9 is continued after changing to the corrected heating power, it is possible to suppress the temperature rise of the first control board 61 due to the operation of the heating grill 9. Note that in a state where the detected temperature is equal to or higher than the second temperature, when both the heating grill 9 and the stove burner 11 are operating, the heating powers of both the heating grill 9 and the stove burner 11 are changed to the corrected heating power respectively, and the operations of the heating grill 9 and the stove burner 11 are continued.

[0108] In this way, in this cooking appliance 100, even when the heating grill 9 and the stove burner 11 are operating to heat the object to be cooked, it is less likely that insufficient cooling of the first control board 61 by the cooling fan 65 will occur. As a result, in this cooking appliance 100, damage to the first control board 61 due to heat can be preferably prevented.

[0109] Therefore, the cooking appliance 100 of the embodiment exhibits high convenience and excellent durability.

[0110] Incidentally, in this cooking device 100, even when the object to be cooked is being heated by the first heating coil 5 and the second heating coil 7, and even when the object to be cooked is heated by the heating grill 9 and the stove burner 11, the cooling performance of the cooling fan 65 is designed so that the temperature of the first control board 61 does not exceed the second temperature. Therefore, normally, even when cooking an object to be cooked using this cooking device 100, it is unlikely that the temperature of the first control board 61 will reach the second temperature or the third temperature. In other words, it can be said that a situation where the temperature of the first control board 61 reaches the second temperature or the third temperature is an abnormal situation. In this regard, in this cooking device 100, even if an abnormal situation occurs, it is possible to suitably prevent the first control board 61 from being damaged by heat. Examples of abnormal situations include cases where the inside of the housing 1 becomes extremely hot due to blockage of the ventilation portion 21 and the exhaust port 3a, as well as failures of the cooling fan 65 and the temperature sensor 63, etc.

[0111] Also, in this cooking device 100, even when none of the first heating coil 5, the second heating coil 7, the heating grill 9, and the stove burner 11 are operating, if the detected temperature detected by the temperature sensor 63, that is, if the temperature of the first control board 61 is equal to or higher than the first temperature, the first control board 61 is cooled by the cooling fan 65. Therefore, in this cooking device 100, it is possible to suitably suppress an increase in the temperature of the first control board 61 due to the environment around the cooking device 100, such as the room temperature or the air temperature around the kitchen.

[0112] Furthermore, in this cooking device 100, after changing the heating power of the heating grill 9 to the corrected heating power in step S203 of FIG. 4, if the temperature of the first control board 61 becomes lower than the second temperature (step S301 in FIG. 5: YES), the heating power of the heating grill 9 is increased to be greater than the corrected heating power in step S302. Thereby, in this cooking device 100, it is possible to suitably prevent damage to the first control board 61 due to heat and also suitably suppress a decrease in the cooking efficiency by the heating grill 9. Also in this regard, this cooking device 100 has high convenience.

[0113] Further, in this cooking device 100, since the second control board 73 can perform automatic cooking control for the heating grill 9 and the stove burner 11, automatic cooking can be performed with the heating grill 9 and the stove burner 11. Here, for example, when the second control board 73 changes the heating power of the heating grill 9 to the corrected heating power while automatic cooking is being performed with the heating grill 9, the second control board 73 changes the cooking time of the cooking conditions and continues the automatic cooking with the heating grill 9. Thereby, in this cooking device 100, even if the heating power of the heating grill 9 is changed to the corrected heating power, automatic cooking can be suitably performed, and it is possible to prevent as much as possible the failure of automatic cooking due to insufficient heating power or insufficient cooking time of the heating grill 9.

[0114] As described above, in the cooking device 100, the second control board 73 performs each operation control including the automatic cooking control of the heating grill 9 and the stove burner 11 through the operation control of the fuel gas supply device 71. Here, the processing load of the second control board 73 when performing the operation control of the heating grill 9 and the stove burner 11 is smaller than the processing load of the first control board 61 when performing the operation control of the first and second heating coils 5 and 7. For this reason, even when performing the operation control of the heating grill 9 and the stove burner 11, the amount of heat generated by the semiconductor 73b provided on the second control board 73 does not increase so much, and compared with the cooling requirement for the first control board 61, the cooling requirement for the second control board 73 is small. Thereby, in the cooking device 100, even if the second control board 73 is arranged separately from the first control board 61 and it is difficult for the cooling air from the cooling fan 65 to hit the second control board 73, damage to the second control board 73 due to heat is less likely to occur.

[0115] As described above, the present invention has been described with reference to the embodiments. However, it goes without saying that the present invention is not limited to the above embodiments and can be appropriately changed and applied without departing from the spirit thereof.

[0116] For example, in the cooking device 100 of the embodiment, when the detected temperature is equal to or higher than the second temperature and the heating grill 9 is operating, the second control board 73 changes the heating power of the heating grill 9 to the corrected heating power and continues the operation of the heating grill 9. However, not limited to this, when the detected temperature is equal to or higher than the second temperature and the heating grill 9 or the stove burner 11 is operating, the second control board 73 may stop the operation of the heating grill 9 or the stove burner 11 and stop heating the object to be cooked by the heating grill 9 or the stove burner 11.

[0117] In addition, in the cooking device 100 of the embodiment, the first and second heating coils 5 and 7 are used as the "electric cooking means" in the present invention. However, not limited to this, an electric heater or the like may be used as the "electric cooking means" in the present invention.

[0118] In addition, in the cooking device 100 of the embodiment, the second heating coil 7 may be omitted.

[0119] In addition, in the cooking device 100 of the embodiment, either the heating grill 9 or the stove burner 11 may be omitted.

[0120] In addition, in the cooking device 100 of the embodiment, the temperature sensor 63 detects the temperature of the first control board 61 as the detected temperature. However, not limited to this, the temperature sensor 63 may detect the temperature around the first control board 61 as the detected temperature.

[0121] In addition, in the cooking device 100 of the embodiment, a plurality of cooling fans 65 may be provided to cool the first control board 61. In addition to the cooling fan 65, a dedicated cooling fan for cooling the first and second heating coils 5 and 7 or a dedicated cooling fan for cooling the second control board 73 may be provided.

[0122] In addition, in the cooking device 100 of the embodiment, the cooling fan 65 is used as the "cooling means" in the present invention. However, not limited to this, a cooling device that cools the first control board 61 by circulating a coolant or the like may be used as the "cooling means" in the present invention.

[0123] Further, in the cooking appliance 100 of the embodiment, the first control board 61 and the second control board 73 may be arranged adjacent to each other, and the first control board 61 and the second control board 73 may be cooled by the cooling air of the cooling fan 65.

[0124] Further, in the cooking appliance 100 of the embodiment, by providing a location on the first control board 61 for performing the operation control of the heating grill 9 and the stove burner 11 through the operation control of the fuel gas supply device 71, and a location for performing the automatic cooking control of the heating grill 9 and the stove burner 11, the first control board 61 may also serve as the function of the second control board 73.

[0125] Further, in the cooking appliance 100 of the embodiment, the first control board 61 may be capable of executing the automatic cooking control by the first and second heating coils 5 and 7.

[0126] Further, in the cooking appliance 100 of the embodiment, even if at least one of the first heating coil 5 and the second heating coil 7 is operating, if the detected temperature detected by the temperature sensor 63 is lower than the first temperature, the operation of the cooling fan 65 may be stopped.

[0127] Further, in the cooking appliance 100 of the embodiment, even if the detected temperature detected by the temperature sensor 63 is lower than the first temperature and neither the first heating coil 5 nor the second heating coil 7 is operating, if the heating grill 9 or the stove burner 11 is operating, the first control board 63 may operate the cooling fan 65.

Industrial Applicability

[0128] The present invention can be used for household cooking appliances, kitchen equipment, etc.

Explanation of Signs

[0129] 5... First heating grill (electric cooking means) 7... Second heating grill (electric cooking means) 9... Heating grill (gas cooking means) 11… Stove burner (gas cooking means) 13… First control unit 15… Second control unit 61… First control board (control means) 61b… Semiconductor 63… Temperature sensor (temperature detection means) 65… Cooling fan (cooling means) 100… Cooking heater

Claims

1. Electric heating cooking means that is operated by electricity and can cook while heating the object to be cooked, Gas heating cooking means that can cook while heating the object to be cooked by combustion of fuel gas, A first control unit that controls the operation of the electric heating cooking means, A second control unit that controls the operation of the gas heating cooking means, and The first control unit includes control means provided with a plurality of semiconductors, Temperature detection means capable of detecting the temperature of the control means or the temperature around the control means as a detected temperature, Cooling means capable of cooling the control means, and The cooling means starts cooling the control means when the electric heating cooking means starts operating or when the detected temperature is equal to or higher than a first temperature, The second control unit can change the heating power of the gas heating cooking means during operation, The second control unit, when the gas heating cooking means is operating in a state where the detected temperature is equal to or higher than a second temperature that is higher than the first temperature, changes the heating power of the gas heating cooking means to a corrected heating power that is lower than the current heating power and continues the operation of the gas heating cooking means, or stops the operation of the gas heating cooking means. A heating cooking device characterized by this.

2. The heating cooking device according to claim 1, wherein the cooling means starts cooling the control means when the detected temperature is equal to or higher than the first temperature even when the electric heating cooking means is in a stopped state.

3. The heating cooking device according to claim 1 or 2, wherein the second control unit increases the heating power from the corrected heating power if the detected temperature is lower than the second temperature during the operation of the gas heating cooking means after changing the heating power to the corrected heating power.

4. The second control unit is capable of automatic cooking control for automatically cooking the object to be cooked in the gas heating cooking means based on cooking conditions, The cooking conditions include the cooking time for the object to be cooked, The heating cooking device according to claim 1 or 2, wherein the second control unit, when executing the automatic cooking control in a state where the detected temperature is equal to or higher than the second temperature, changes the heating power to the corrected heating power and changes at least the cooking time among the cooking conditions to continue the automatic cooking control.

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