JP6780574B2 - Cooking equipment - Google Patents

Description

The present invention relates to a cooking device.

Conventionally, various types of cooking devices are known in which oil stored in an oil storage tank is heated, and food such as potatoes and croquettes is added to the heated oil to cook.

By the way, oil is oxidized with the passage of time in the atmosphere, especially when it is heated, and deteriorates in quality. Therefore, when food is cooked a plurality of times with heated oil, the oil is rapidly deteriorated and deteriorated, and the viscosity of the oil becomes high, which causes deterioration of color and odor. Along with this, the color and taste of the cooked food deteriorate, which may lead to a deterioration in quality.

Therefore, a cooking device has been proposed in which the used oil used for cooking is cleaned and stocked in a state where the cleaned oil is prevented from being oxidized (for example, a patent). Reference 1).

Japanese Unexamined Patent Publication No. 5-31035

However, the above-mentioned cooking device requires a device for cleaning the oil after use, a device for stocking the oil after the cleaning treatment in an antioxidant state, and the like, and as the number of parts increases, the device itself There was a risk that it would lead to an increase in size.

In view of the above circumstances, an object of the present invention is to provide a cooking device capable of suppressing the enlargement of the device itself and the oxidation of oil.

In order to achieve the above object, the heating cooking apparatus according to the present invention includes an apparatus main body in which the upper surface opening formed on the upper surface is opened and closed by a lid, and the upper surface opening is closed by the lid. A heating cooking apparatus that is installed in a heating chamber that forms a closed space inside the main body of the apparatus and is provided with an oil storage tank in which oil is stored, and cooks food using the oil. An induction heating coil that heats the oil storage tank by induction heating when it is installed in the lower region of the above and is energized, and an induction heating coil that is installed in the lower region of the induction heating coil so as to be separated from the induction heating coil. A superheated steam generator that generates superheated steam from water supplied by heating by induction heating when the induction heating coil is energized, and a superheated steam generated by the superheated steam generator are transferred to the heating chamber. It is characterized by being provided with a supply means for supplying.

Further, according to the present invention, in the heating cooking apparatus, the superheated steam generating unit has a steam generation pipeline that generates steam from water when heated by induced heating, and the steam generation unit when heated by induced heating. A gas-liquid solution of a fluid installed between the superheated steam generation pipeline that generates superheated steam from the steam generated in the pipeline and the steam generation pipeline and the superheated steam pipeline, and has passed through the steam generation pipeline. It is characterized by being equipped with a gas-liquid separator that performs separation.

Further, the present invention is characterized in that, in the cooking apparatus, the superheated steam generation pipe has a smaller diameter than the steam generation pipe.

Further, the present invention is characterized in that, in the cooking apparatus, the supply means supplies the superheated steam to the heating chamber when the oil in the oil storage tank is heated to 100 ° C. or higher.

Further, in the present invention, in the heating cooking apparatus, the supply means supplies superheated steam to the heating chamber in such a manner that superheated steam passes along the oil level of the oil stored in the oil storage tank, and the oil. It is characterized in that superheated steam that has passed along the surface is discharged to the outside of the heating chamber.

Further, according to the present invention, in the cooking apparatus, a lift in which a basket containing food is immersed in the oil of the oil storage tank at the time of cooking, while the basket is pulled above the oil level of the oil storage tank at the time of completion of cooking or standby. It is characterized by having a mechanism.

According to the present invention, when the induction heating coil installed in the lower region of the heating chamber is energized, the oil storage tank is heated by induction heating and is installed in a manner separated from the lower region of the induction heating coil. Since the superheated steam generator is heated by induction heating, the oil in the oil storage tank can be heated and the superheated steam can be generated at the same time. Moreover, since the supply means supplies the superheated steam generated by the superheated steam generating unit to the heating chamber, the oxygen concentration in the heating chamber can be reduced, the oxidation of the oil can be suppressed, and the oxidatively polymerized oil can also be hydrolyzed. .. Further, since a cleaning treatment device or a stock device is not required as in the conventional case, it is possible to suppress an increase in the size of the entire device. Therefore, there is an effect that the size of the apparatus itself can be increased and the oxidation of oil can be suppressed.

FIG. 1 is a perspective view showing a cooking apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view showing a cooking apparatus according to an embodiment of the present invention. FIG. 3 is a schematic view showing a part of the cooking apparatus according to the embodiment of the present invention in cross section. FIG. 4 is a block diagram showing a characteristic control system of the cooking apparatus according to the embodiment of the present invention. FIG. 5 is a perspective view showing the superheated steam generating portion shown in FIG. FIG. 6 is a side view showing a lift mechanism constituting the cooking apparatus according to the embodiment of the present invention. FIG. 7 is a perspective view showing a lift mechanism constituting the cooking apparatus according to the embodiment of the present invention. FIG. 8 is a side view showing a lift mechanism constituting the cooking apparatus according to the embodiment of the present invention. FIG. 9 is a perspective view showing a lift mechanism constituting the cooking apparatus according to the embodiment of the present invention. FIG. 10 is a flowchart showing the processing content of the heating control process performed by the control unit shown in FIG. FIG. 11 is a flowchart showing the processing contents of the cooking control process performed by the control unit shown in FIG.

Hereinafter, preferred embodiments of the cooking apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show a cooking apparatus according to an embodiment of the present invention, respectively, FIGS. 1 and 2 are perspective views, FIG. 3 is a schematic view showing a part in a cross section, and FIG. 4 is a feature. It is a block diagram which shows a typical control system.

The heating and cooking apparatus exemplified here includes an apparatus main body 10, an oil storage tank 20, an induction heating coil 30, a superheated steam generating unit 40, an exhaust fan F, a lift mechanism 50, an input unit N, and an oil temperature sensor. It is configured to include S, a display unit H, and a control unit 60.

The apparatus main body 10 has a rectangular shape, and a plurality of leg portions 10a are provided on the bottom portion. The apparatus main body 10 has an opening (hereinafter, also referred to as an upper surface opening) 11 formed on the upper surface thereof, and is provided with a lid 12 and a heating chamber 13.

The lid body 12 has a size sufficient to close the upper surface opening 11, and is provided in such a manner that it can swing around the axial center of the shaft portion 12a at the rear edge portion of the upper surface opening 11. There is. The lid 12 closes the upper surface opening 11 when swinging downward, while opening the upper surface opening 11 when swinging upward. The lid 12 is made of a heat insulating material, and a window portion 12b for visually recognizing the inside of the apparatus main body 10 is formed even when the upper surface opening 11 is closed. Reference numeral 12c in FIGS. 1 and 2 is a handle.

The heating chamber 13 is provided in the apparatus main body 10 so as to face the upper surface opening 11. The heating chamber 13 is a chamber that forms a closed space inside the apparatus main body 10 when the upper surface opening 11 is closed by the lid body 12. The bottom of the heating chamber 13 is made of, for example, a glass material.

The oil storage tank 20 is placed on the bottom of the heating chamber 13. The oil storage tank 20 is made of a metal material such as stainless steel (for example, SUS430) and has an opening on the upper surface. Edible oil 20a is stored in the oil storage tank 20. Such an oil storage tank 20 is placed in a substantially central portion of the bottom portion of the heating chamber 13 so that the side wall portion is separated from the inner wall portion of the heating chamber 13.

Here, the lid body 12 will be described. As shown in FIGS. 2 and 3, the lid body 12 is formed with a recess 121 having a rectangular opening. The area of the opening portion of the recess 121 substantially coincides with the opening area of the heating chamber 13, and when the lid 12 closes the upper surface opening 11, the edge portion of the opening portion of the recess 121 is the heating chamber 13. Facing the opening edge. The inclination angle θ of the recess 121 of the lid 12 is adjusted to be larger than the contact angle between the inner surface material of the recess 121 and water.

The induction heating coil 30 is installed in the lower region of the heating chamber 13. The induction heating coil 30 is configured to be wound around a central axis extending along the vertical direction. The induction heating coil 30 is energized when a voltage of a specific frequency is applied from the electrically connected inverter 31, and heats the oil storage tank 20 by induction heating. The inverter 31 has a built-in so-called inverter circuit, and gives an alternating current supplied from a commercial power source to the induction heating coil 30 as an alternating current having a specific frequency.

FIG. 5 is a perspective view showing the superheated steam generating portion shown in FIG. The superheated steam generating unit 40 is installed in the lower region of the induction heating coil 30 so as to be separated from the induction heating coil 30. The superheated steam generation unit 40 includes a steam generation pipe 41, a buffer tank (gas-liquid separator) 42, and a superheated steam generation pipe 43.

The water vapor generation pipe 41 is a pipe formed by winding a metal pipe made of a metal material such as stainless steel around a central axis extending in the vertical direction. The inlet of the steam generation pipeline 41 is connected to the water supply line 71. The water supply line 71 is a pipeline for supplying water to superheated steam from a reservoir tank 72 that stores water such as tap water. A pump 73 is provided on the water supply line 71. The pump 73 is driven in response to a command given from the control unit 60, and when driven, the water in the reservoir tank 72 is supplied to the superheated steam generating unit 40 through the water supply line 71.

The steam generation pipeline 41 is heated by induction heating when the induction heating coil 30 is energized, and generates steam from the water passing through by heating.

The buffer tank 42 is connected to the steam generation pipe 41 so that the inlet communicates with the outlet of the steam generation pipe 41. The buffer tank 42 separates the fluid (water and water vapor) that has passed through the water vapor generation pipeline 41 into gas and liquid, discharges water as a liquid phase fluid from the liquid phase outlet, and discharges water vapor as a gas phase fluid from the gas phase outlet. It discharges more.

The liquid phase outlet of the buffer tank 42 is connected to the return line 74. The return line 74 is a pipeline configured to join the water supply line 71, and a check valve 75 is provided in the middle of the pipeline. The return line 74 is for returning the water discharged from the liquid phase outlet to the water supply line 71.

The superheated steam generation pipe 43 is formed by winding a metal pipe made of a metal material such as stainless steel around a central axis extending in the vertical direction in a manner adjacent to the steam generation pipe 41. It is a pipeline. The superheated steam generation pipe 43 has a smaller diameter than the steam generation pipe 41, and is connected to the buffer tank 42 in such a manner that the inlet communicates with the gas phase outlet of the buffer tank 42.

The superheated steam generation pipeline 43 is heated by induction heating when the induction heating coil 30 is energized, and generates superheated steam from the steam passing through by heating.

That is, the superheated steam generating unit 40 generates superheated steam from the water supplied by heating by the induction heating when the induction heating coil 30 is energized. In the superheated steam generation unit 40, as shown in FIG. 5, the steam generation pipe 41 and the superheated steam generation pipe 43 are supported by a stainless steel bar 44 formed in a cross shape. The intersecting portion of the bar 44 coincides with the central axis of the steam generation pipe 41 and the superheated steam generation pipe 43.

The outlet of the superheated steam generation pipe 43 is connected to the air supply line 76. The air supply line 76 is a pipe for supplying the superheated steam generated in the superheated steam generation pipe 43 to the heating chamber 13. A switching valve 77 is provided in the middle of the air supply line 76.

The switching valve 77 is a valve body that switches between a first delivery state and a second delivery state in response to a command given from the control unit 60. The switching valve 77 allows the superheated steam generated in the superheated steam generation line 43 to pass through the supply air line 76 and be supplied to the heating chamber 13 when the first delivery state is reached. 2 In the delivery state, the superheated steam generated in the superheated steam generation pipe 43 is discharged to the outside through the discharge line 78 connected to itself. The switching valve 77 is normally in the second delivery state.

The exhaust fan F is formed in the apparatus main body 10 and is installed in the vicinity of the exhaust port 80 which communicates with the heating chamber 13 through the exhaust line 79. The exhaust fan F is driven in response to a command given from the control unit 60, and when driven, the internal atmosphere of the heating chamber 13 is discharged to the outside through the exhaust line 79 and the exhaust port 80.

6 and 7 show the lift mechanism shown in FIG. 3, respectively, FIG. 6 is a side view, and FIG. 7 is a perspective view. The lift mechanism 50 includes a cam member 51, a lifter 52, and a link member 53.

The cam member 51 has a disk-like shape, and the output shaft 54a of the lift motor 54, which is a drive source, is inserted into the recess 511a of the boss 511 formed at the center thereof. The cam member 51 rotates around its center by being driven by the lift motor 54. Further, the cam member 51 is formed with a pin 512 near the peripheral edge.

The lifter 52 extends in the vertical direction, and a basket 81 is locked at the upper end thereof. The basket 81 is used to put food to be cooked. A connecting plate 521 is provided at an intermediate portion in the vertical direction of the lifter 52, and a connecting pin 522 is formed on the connecting plate 521.

The link member 53 has a long flat plate shape, and first connecting holes 531 and second connecting holes 532 are formed at both ends in the longitudinal direction. In this link member 53, the cam member 51 and the lifter 52 are connected by inserting the pin 512 of the cam member 51 into the first connecting hole 531 and inserting the connecting pin 522 of the lifter 52 into the second connecting hole 532. Is what you do.

In such a lift mechanism 50, as shown in FIGS. 6 and 7, when the pin 512 is arranged below the boss 511, the lifter 52 is located at the lowest position and the basket 81 is placed in the oil 20a of the oil storage tank 20. Will be immersed in. On the other hand, when the cam member 51 is rotated by 180 ° and the pin 512 is arranged above the boss 511 as shown in FIGS. 8 and 9, the lifter 52 is located at the uppermost position and holds the basket 81 in the oil storage tank. It will be raised above the oil level of 20. The lift mechanism 50 is in a posture in which the lifter 52 is located at the uppermost position in the normal state.

The input unit N is provided on the side surface of the apparatus main body 10 as shown in FIGS. 1 and 2. The input unit N is provided with, for example, a numeric keypad, and sends a command to the control unit 60 when an input operation is performed by an operator.

The oil temperature sensor S detects the temperature of the oil 20a in the oil storage tank 20. The oil temperature sensor S sends the detection result (oil temperature) as a signal to the control unit 60. The display unit H displays various information in response to a command given from the control unit 60.

The control unit 60 comprehensively controls the operation of the cooking apparatus according to the programs and data stored in the memory 69, and is an input processing unit 61, an inverter drive processing unit 62, a pump drive processing unit 63, and a comparison processing unit. 64, a valve drive processing unit 65, a fan drive processing unit 66, a display processing unit 67, and a lift motor drive processing unit 68 are provided.

The control unit 60 may be realized by, for example, a processing device such as a CPU (Central Processing Unit), that is, software, or hardware such as an IC (Integrated Circuit). Alternatively, it may be realized by using software and hardware together.

The input processing unit 61 inputs a command given from the input unit N and a signal (oil temperature) given from the oil temperature sensor S. The inverter drive processing unit 62 selectively gives a drive command and a drive stop command to the inverter 31. The pump drive processing unit 63 selectively gives a drive command and a drive stop command to the pump 73.

In the heating control process described later, the comparison processing unit 64 compares the oil temperature input through the input processing unit 61 with the reference temperature (for example, 100 ° C.) stored in the memory 69, and the oil input through the input processing unit 61. The temperature is compared with the cooking temperature (for example, 170 ° C. or higher) stored in the memory 69.

The valve drive processing unit 65 gives a switching command to the switching valve 77. The fan drive processing unit 66 selectively gives a drive command and a drive stop command to the exhaust fan F. The display processing unit 67 gives a display command to the display unit H. The lift motor drive processing unit 68 selectively gives a drive command and a drive stop command to the lift motor 54.

FIG. 10 is a flowchart showing the processing content of the heating control process performed by the control unit shown in FIG. The operation of the cooking apparatus will be described while explaining the heating control process. In the heating control process, it is assumed that the switching valve 77 is in the second delivery state as a premise. Further, it is assumed that the lift mechanism 50 is in a posture in which the lifter 52 is located at the uppermost position.

When the input unit N is operated by the operator and the control unit 60 inputs a heating command from the input unit N through the input processing unit 61 (step S101: Yes), the drive command is given to the inverter 31 through the inverter drive processing unit 62. Is sent, and a drive command is sent to the pump 73 through the pump drive processing unit 63 (step S102, step S103).

As a result, the inverter 31 is driven to apply the alternating current provided by the commercial power source to the induction heating coil 30 as an alternating current having a specific frequency, and the induction heating coil 30 is energized. When the induction heating coil 30 is energized in this way, the oil storage tank 20 and the superheated steam generation unit 40 (steam generation pipe 41 and superheated steam generation pipe 43) are heated by induction heating. Further, the pump 73 is driven to supply the water in the reservoir tank 72 to the superheated steam generating unit 40 through the water supply line 71. As a result, the superheated steam generating unit 40 generates superheated steam from the supplied water by being heated by induction heating.

By the way, since the switching valve 77 is in the second delivery state as described above, the superheated steam generated in the superheated steam generation line 43 is discharged to the outside through the discharge line 78.

The control unit 60 that has performed the processes of steps S102 and S103 waits for the input of the oil temperature from the oil temperature sensor S through the input processing unit 61 (step S104). Then, when the oil temperature is input from the oil temperature sensor S through the input processing unit 61 (step S104: Yes), the control unit 60 determines whether or not the oil temperature is 100 ° C. or higher, which is the reference temperature, through the comparison processing unit 64. Are compared (step S105).

When the oil temperature is less than 100 ° C. (step S105: No), the control unit 60 repeats the processes of step S104 and step S105. That is, the process of discharging the superheated steam generated in the superheated steam generation line 43 to the outside through the discharge line 78 is repeated.

On the other hand, when the oil temperature is 100 ° C. or higher (step S105: Yes), the control unit 60 sends a switching command to the switching valve 77 through the valve drive processing unit 65, and sends a switching command to the exhaust fan F through the fan drive processing unit 66. A drive command is sent (step S106, step S107).

As a result, the switching valve 77 is in the first delivery state, and the superheated steam generated by the superheated steam generating unit 40 is supplied to the heating chamber 13 through the air supply line 76 and passes along the oil level of the oil storage tank 20. It circulates through the exhaust line 79 and is discharged to the outside. As a result, the oxygen concentration in the vicinity of the oil level of the oil 20a in the oil storage tank 20 can be reduced.

The control unit 60 that has performed the processes of steps S106 and S107 waits for the input of the oil temperature from the oil temperature sensor S through the input processing unit 61 (step S108). Then, when the oil temperature is input from the oil temperature sensor S through the input processing unit 61 (step S108: Yes), the control unit 60 compares whether or not the oil temperature is equal to or higher than the cooking temperature through the comparison processing unit 64 (step S108: Yes). Step S109).

When the oil temperature is lower than the cooking temperature (step S109: No), the control unit 60 repeats the processes of step S108 and step S109. On the other hand, when the oil temperature is equal to or higher than the cooking temperature (step S109: Yes), the control unit 60 sends a cookable display command to the display unit H through the display processing unit 67 (step S110), and then the procedure. Is returned to end this process.

According to this, the display unit H displays that cooking is possible, and the operator can be made to recognize that cooking is possible. Then, the operator swings the lid 12 upward to open the upper surface opening 11, and puts the food to be cooked into the basket 81. As described above, since the lifter 52 of the lift mechanism 50 is located at the uppermost position, the basket 81 is pulled above the oil level of the oil storage tank 20.

After that, the operator swings the lid 12 downward to close the upper surface opening 11, operates the input unit N to give a cooking command to the control unit 60, and the control unit 60 performs the cooking control process. carry out.

FIG. 11 is a flowchart showing the processing contents of the cooking control process performed by the control unit shown in FIG. The operation of the cooking apparatus will be described while explaining the cooking control process.

When the input unit N is operated by the operator and the control unit 60 inputs a cooking command from the input unit N through the input processing unit 61 (step S201: Yes), the lift motor 54 is connected to the lift motor 54 through the lift motor drive processing unit 68. In response to this, a drive command is sent (step S202), and the operation time waits for elapse (step S203).

As a result, the lift motor 54 is driven to rotate the cam member 51, and the lifter 52 moves downward via the link member 53. Here, the operating time is the time required for the cam member 51 to rotate 180 °.

When the operation time has elapsed (step S203: Yes), the control unit 60 sends a drive stop command to the lift motor 54 through the lift motor drive processing unit 68 (step S204).

As a result, in the lift mechanism 50, as shown in FIGS. 6 and 7, the pin 512 of the cam member 51 is arranged below the boss 511, the lifter 52 is located at the lowest position, and the basket 81 is the oil of the oil storage tank 20. Immerse in 20a. This heats the food with the oil 20a.

The control unit 60 that has sent the drive stop command to the lift motor 54 in this way waits for the elapse of a predetermined cooking time through the built-in clock (step S205).

Then, when the cooking time has elapsed (step S205), the control unit 60 sends a drive command to the lift motor 54 through the lift motor drive processing unit 68 (step S206), and waits for the operation time to elapse (step S206). S207). The operating time is the time required for the cam member 51 to rotate 180 °, as in step S203.

When the operation time has elapsed (step S207: Yes), the control unit 60 sends a drive stop command to the lift motor 54 through the lift motor drive processing unit 68 (step S208).

As a result, in the lift mechanism 50, as shown in FIGS. 8 and 9, the pin 512 of the cam member 51 is arranged above the boss 511, the lifter 52 is located at the uppermost position, and the basket 81 is the oil of the oil storage tank 20. It is pulled up above the surface. At this time, the food in the basket 81 can be brought into a more preferable state by spraying superheated steam passing along the oil surface and removing excess oil 20a.

The control unit 60 that has performed the process of step S208 sends a cooking completion display command to the display unit H through the display processing unit 67 (step S209), and then returns the procedure to end the current process.

According to this, the display unit H displays that the cooking is completed, and the operator can be made to recognize that the cooking is completed.

Then, the operator swings the lid 12 upward to open the upper surface opening 11, and the food in the basket 81 can be taken out through the cooking utensil such as tongs through the upper surface opening 11. Since the internal atmosphere of the heating chamber 13 is exhausted to the outside through the exhaust line 79 by driving the exhaust fan F, it is possible to prevent the operator's fingers and the like from being exposed to superheated steam.

As described above, in the cooking apparatus according to the embodiment of the present invention, the air supply line 76, the switching valve 77, the exhaust line 79, the exhaust fan F and the control unit 60 are generated by the superheated steam generating unit 40. It constitutes a supply means for supplying the superheated steam to the heating chamber 13.

Then, according to the heating / cooking apparatus of the present embodiment, when the induction heating coil 30 installed in the lower region of the heating chamber 13 is energized, the oil storage tank 20 is heated by induction heating and the induction is performed. Since the superheated steam generating unit 40 installed in the lower region of the heating coil 30 is heated by induction heating, the oil 20a in the oil storage tank 20 can be heated and the superheated steam can be generated at the same time. Moreover, since the superheated steam generated by the superheated steam generating unit 40 is supplied to the heating chamber 13, the oxygen concentration in the heating chamber 13 can be reduced, the oxidation of the oil 20a can be suppressed, and the oxidatively polymerized oil 20a is also hydrolyzed. Can be done. Further, since a cleaning treatment device or a stock device is not required as in the conventional case, it is possible to suppress an increase in the size of the entire device. Therefore, it is possible to suppress the increase in size of the apparatus itself and the oxidation of the oil 20a.

According to the above-mentioned heating cooking apparatus, the superheated steam generation unit 40 is a steam generation pipeline 41 that generates steam from water when heated by induced heating, and a steam generation pipeline 41 when heated by induced heating. A buffer that separates gas and liquid from the superheated steam generation line 43 that generates superheated steam from the generated steam and the fluid that has passed through the water vapor generation line 41 between the water vapor generation line 41 and the superheated steam generation line 43. Since the tank 42 is provided, only the vapor phase fluid can be delivered to the superheated steam generation line 43, and the efficiency of superheated steam generation can be improved.

According to the heating cooking apparatus, when the oil 20a in the oil storage tank 20 is heated to 100 ° C. or higher, the superheated steam is supplied to the heating chamber 13, so that the superheated steam generated by the superheated steam generating unit 40 is heated. It is supplied to the chamber 13 and cooled by the oil 20a below 100 ° C. and aggregates, becomes water and invades into the oil storage tank 20, and the oil 20a splashes and free fatty acids are generated by the hydrolysis of the oil 20a. Can be prevented.

In the above-mentioned cooking apparatus, the oil storage tank 20 is placed in a substantially central portion of the bottom portion of the heating chamber 13 so that the side wall portion is separated from the inner wall portion of the heating chamber 13, and the lid 12 has an upper surface opening. When 11 is closed, a recess 121 is formed in which the edge of the opening faces the opening edge of the heating chamber 13, and the inclination angle θ of the recess 121 is the contact between the inner surface material of the recess 121 and water. It is adjusted to be larger than the corner. As a result, even if dew condensation occurs on the inner surface of the recess 121 when the food is cooked with the oil 20a, the condensed water will drip from the opening edge of the recess 121 through the side wall of the heating chamber 13. It is possible to prevent the condensed water from entering the oil storage tank 20.

In the above-mentioned cooking apparatus, the steam generation pipe 41 and the superheated steam generation pipe 43 constituting the superheated steam generation unit 40 are supported by a stainless steel bar 44 formed in a cross shape. As a result, the steam generation pipe 41 and the superheated steam generation pipe 43 can be positioned well, and the stainless steel bar 44 is also heated by the induction heating to heat the steam generation pipe 41 and the superheated steam generation pipe 43. Can be heated auxiliary. Further, a strong current flows through the bar 44, so that the amount of heat generated can be increased and the generation of leakage flux can be suppressed.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made.

In the above-described embodiment, when the oil temperature is less than 100 ° C., which is the reference temperature, the switching valve 77 is set to the second delivery state and the superheated steam is discharged to the outside through the discharge line 78. However, in the present invention, the superheated steam is discharged to the outside. When the oil temperature is less than 100 ° C, a ferrite for magnetic shielding is interposed between the induction heating coil and the superheated steam generating part, and when the oil temperature is 100 ° C or higher, the ferrite is removed. May be good.

In the above-described embodiment, the superheated steam supplied to the heating chamber 13 is discharged to the outside through the exhaust line 79 by driving the exhaust fan F, but in the present invention, the superheated steam supplied to the heating chamber 13 is discharged to the outside. The steam may be reused by introducing it into the superheated steam generator.

10 Equipment body 11 Top opening 12 Lid 13 Heating chamber 20 Oil storage tank 30 Inductive heating coil 31 Inverter 40 Superheated steam generator 41 Steam generator pipe 42 Buffer tank 43 Superheated steam generator 50 Lift mechanism 51 Cam member 52 Lifter 53 Link Parts 54 Lift motor 60 Control unit 61 Input processing unit 62 Inverter drive processing unit 63 Pump drive processing unit 64 Comparison processing unit 65 Valve drive processing unit 66 Fan drive processing unit 67 Display processing unit 68 Lift motor drive processing unit 77 Switching valve 81 Basket F Exhaust fan H Display part N Input part S Oil temperature sensor

Claims (6)

The device body, in which the upper surface opening formed on the upper surface is opened and closed by the lid,
An oil storage tank that is installed in a heating chamber that forms a closed space inside the apparatus main body when the upper surface opening is closed by the lid and stores oil is provided, and the oil is used. It is a cooking device that cooks food.
An induction heating coil that is installed in the lower area of the heating chamber and heats the oil storage tank by induction heating when it is energized.
Superheated steam is generated from water supplied by being heated by induction heating when the induction heating coil is installed in a lower region of the induction heating coil in a manner separated from the induction heating coil and the induction heating coil is energized. Superheated steam generator and
A cooking apparatus comprising a supply means for supplying superheated steam generated by the superheated steam generating unit to the heating chamber. The superheated steam generator
A steam generation pipeline that generates steam from water when heated by induction heating,
A superheated steam generation pipeline that generates superheated steam from the steam generated in the steam generation pipeline when heated by induction heating.
The first aspect of claim 1 is provided with a gas-liquid separator installed between the steam generation line and the superheated steam line and performing gas-liquid separation of a fluid passing through the steam generation line. The cooking device described. The cooking apparatus according to claim 2, wherein the superheated steam generation pipe has a smaller diameter than the steam generation pipe. The heating according to any one of claims 1 to 3, wherein the supply means supplies the superheated steam to the heating chamber when the oil in the oil storage tank is heated to 100 ° C. or higher. Cooking equipment. The supply means supplies superheated steam to the heating chamber in a manner in which superheated steam passes along the oil level of the oil stored in the oil storage tank, and heats the superheated steam that has passed along the oil level. The cooking apparatus according to claim 4, wherein the steam is discharged to the outside of the room. The claim is characterized in that the basket into which food is put is immersed in the oil of the oil storage tank at the time of cooking, and the lift mechanism for pulling the basket above the oil level of the oil storage tank at the time of completion of cooking or standby is provided. The cooking apparatus according to any one of 1 to 5.

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