JP2010104669A - Cooking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooking apparatus which is capable of heating food to be cooked in a cooking container with a larger heating power than that of a conventional rice cooker and is easy to carry. <P>SOLUTION: This cooking apparatus includes: a cooker body 1 comprising a container cover 2 for housing a removable cooking container 3 in which food to be cooked is put and a removable lid 11 which covers the top of the cooking container; and an induction heating cooker 21 which allows the cooker body 1 to be placed and has a heating coil 22 for inductively heating the cooking pot 3 in the cooker body 1. The induction heating cooker 21 is provided with a feeding coil 23 to be connected to a power source, while the cooker body 1 is provided with a receiving coil 14 to be magnetically connected with the feeding coil 23, and a lid heater 12 and a side heater 13 which are disposed at both or either of the lid 11 and the side face of the cooking pot cover 2 and powered with the voltage generated at the receiving coil 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cooking device for cooking by heating a cooking container containing an object to be heated (rice, water, etc.).

A conventional rice cooker includes an induction heating coil and a heating means provided on the lid, operates with a rice cooker alone, and is easy to carry (see, for example, Patent Document 1).
JP 2008-54719 A (page 10, FIG. 1)

However, in the conventional rice cooker described above, it is difficult to easily carry the heavy-weight induction heating coil, the cord reel, and the like which are factors that obstruct the carrying of the heavy weight. In addition, in order to enhance the thermal power, a large circuit and a cooling means are indispensable, and it has been difficult to realize both the enhancement of the thermal power and the ease of carrying with a rice cooker integrated with a power source as described above.
The present invention has been made to solve the above-described problems, and is a heating cooking apparatus that heats a cooking container containing an object to be heated with a larger heating power than a conventional rice cooker and is easy to carry. The purpose is to obtain.

  The cooking device according to the present invention is provided with a cooking vessel having a container cover in which a cooking vessel for putting an object to be heated is detachably stored, and a lid that is detachably attached to the upper portion, and the cooking device. An induction heating cooker having induction heating means for induction heating the cooking vessel in the cooker, the induction heating cooker has a power supply coil connected to a power source, and the cooker is magnetically connected to the power supply coil And a container heating means provided on a side surface of the lid and / or the container cover and using a voltage generated in the power receiving coil as a power source.

  In the present invention, the cooking power can be enhanced by placing the cooking device on the induction heating cooking device, and the cooking power can be strengthened, and the cooking device does not need to be provided with components such as an induction heating coil and a cooling means. The cooking device can be stored in a compact manner, and is therefore easy to carry.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a schematic cross-sectional view showing a side surface of the cooking device according to Embodiment 1 of the present invention.
The cooking device shown in FIG. 1 includes a cooking device 1 and an induction cooking device 21 on which the cooking device 1 is placed. The cooking device 1 has, for example, a rectangular parallelepiped appearance and uses, for example, a disk-shaped heat-resistant plate 4 at a part of the bottom. This cooker 1 is provided at the top opening container cover 2 with the heat-resistant plate 4 as the bottom, the outer lid 11 detachably fitted into the top opening of the cooker 1, and the bottom around the container cover 2. Power receiving coil 14, power supply circuit 17 connected to power receiving coil 14, control circuit 18, and first communication circuit 19. The aforementioned heat-resistant plate 4 is a non-magnetic material that does not interfere with the lines of magnetic force of the heating coil 22 described later, and has a heat resistance of 120 ° C. or higher. Without this heat-resistant plate 4, the cooking container 3 can be efficiently induction-heated by the heating coil 22, but after cooking the cooker 1 is carried to prevent burns and to suppress heat dissipation, and water inside the cooker 1. It is provided to prevent intrusion.

  For example, three convex support members 5 arranged at equal intervals in the circumferential direction are attached to the flange portion formed in the upper opening of the container cover 2. In the container cover 2, a cooking container 3 locked to the support member 5 is detachably stored. Further, a body heater 13 as a container heating means is disposed on the side surface of the container cover 2, and a container temperature sensor 6 (first temperature sensor) is attached to a corner portion of the container cover 2. The container temperature sensor 6 detects the temperature of the cooking container 3 housed in the container cover 2.

  An inner lid 8 detachably attached by a locking member 9 is provided on the surface of the outer lid 11 on the cooking container 3 side, and the inner lid 8 is heated on a surface of the outer lid 11 on the inner lid 8 side. A lid heater 12 (container heating means) is provided. Further, an operation / display unit 16 is provided on the outer surface of the outer lid 11. Further, a cartridge 15 penetrating to the inner lid 8 is detachably attached to the outer lid 11. The cartridge 15 includes a container inner valve 15a that moves up and down according to the vapor pressure generated during rice cooking, and a container. And a steam discharge port 15b for discharging the steam that has passed through the inner valve 15a to the outside. The aforementioned inner lid 8 includes a packing 10 that seals the inside of the cooking container 3 with the flange portion of the cooking container 3 on the outer peripheral portion. A lid temperature sensor 7 (second temperature sensor) for detecting the temperature inside the cooking container 3 is provided at a substantially central portion of the inner lid 8.

  When a voltage of, for example, 100 V is generated in the power receiving coil 14 due to an electromagnetic induction effect of a power feeding coil 23 described later, the power supply circuit 17 generates a control voltage for the operation / display unit 16 and the control circuit 18 from the voltage, and the lid heater 12 In addition, a voltage of 100 V can be supplied to the body heater 13. The control circuit 18 includes a heating coil 22, a body heater 13, and a lid heater according to the type of rice such as white rice and brown rice, the cooked state (hard and soft) set for each rice, rice cake and cooked rice, etc. 12 is set. When the rice cooking menu is selected by the operation / display unit 16, the control circuit 18 selects and executes an operation mode corresponding to the rice cooking menu. The control circuit 18 generates control information (power control) for the heating coil 22 based on the operation mode, transmits the control information by radio waves from the first communication circuit 19, and transmits the control information to a second communication circuit 25 described later. Receive.

  The induction heating cooker 21 is formed in, for example, a rectangular parallelepiped shape whose appearance is low, and is heated around the central axis of the heating coil 22 on the same surface as the heating coil 22 (induction heating means) disposed on the upper inner surface. A power supply coil 23 disposed on the outer periphery of the coil 22, a power supply circuit 24, and a second communication circuit 25 disposed to face the first communication circuit 19 of the cooking device 1 are provided. The heating coil 22 is disposed so as to face the heat-resistant plate 4 provided at the bottom of the cooking device 1, and the power feeding coil 23 is magnetically coupled to the power receiving coil 14 disposed at the bottom of the cooking device 1. Are arranged as follows.

  The power supply circuit 24 is connected to an AC 200V power supply, and when a power switch provided in the induction heating cooker 21 is turned on, a power supply unit that applies a voltage of 200V to the feeding coil 23 and a high frequency current to the heating coil 22. It has a DC power supply unit and an inverter unit for supply. When the radio wave from the first communication circuit 19 is received, the second communication circuit 25 extracts the control information generated by the control circuit 18 from the received radio wave, and extracts the extracted control information from the power supply circuit 24. Output to the inverter unit to drive.

Next, the operation of the cooking device configured as described above will be described.
After the cooking device 1 is placed on the induction heating cooker 21, when the power switch of the induction heating cooker 21 is turned on, the power supply circuit 24 of the induction heating cooker 21 operates the power supply unit to supply a voltage of 200V to the feeding coil. The current is applied to 23. At this time, a voltage of 100 V is generated in the power receiving coil 14 of the cooking device 1 by electromagnetic induction and is applied to the power supply circuit 17. When a voltage of 100 V is applied, the power supply circuit 17 generates and supplies control voltages for the operation / display unit 16 and the control circuit 18 to enable the operation / display unit 16 and the control circuit 18 to operate. .

  In this state, for example, when white rice is selected by the operation / display unit 16 and the rice cooking start switch is turned on, the control circuit 18 selects an operation mode corresponding to the rice cooking menu and performs the preheating process in the operation mode. enter. First, control information for continuously energizing the heating coil 22 is output to the first communication circuit 19. The first communication circuit 19 transmits the input control information to the second communication circuit 25 of the induction heating cooker 21 by radio waves. When the radio wave is received, the second communication circuit 25 extracts control information from the received radio wave, and outputs the extracted control information to the inverter unit of the power supply circuit 24 for driving. Thereby, a voltage of 200 V is applied to the heating coil 22 and a high frequency current flows. That is, the predetermined power set by the control circuit 18 on the cooking device 1 side is continuously output from the heating coil 22.

  The control circuit 18 of the cooking device 1 determines whether the elapsed time from the start of the preheating process has reached a predetermined time, whether the temperature detected by the container temperature sensor 6 has reached the preheating temperature, and the container temperature sensor. When the detected temperature 6 reaches the preheating temperature, control information for intermittently energizing the heating coil 22 is transmitted from the first communication circuit 19 to the second communication circuit 25. The second communication circuit 25 extracts control information from the received radio wave and outputs it to the inverter section 24 of the power supply circuit to intermittently energize the heating coil 22, and the temperature detected by the container temperature sensor 6 sets the preheating temperature. Try to keep. On the other hand, the control circuit 18 of the cooking device 1 determines whether or not the elapsed time from the start of the preheating process has reached a predetermined time as described above, and shifts to the rice cooking process when the elapsed time reaches the predetermined time. .

  When entering the rice cooking process, the control circuit 18 of the cooking device 1 increases the current so that the power is higher than that during the preheating process, and the control information for intermittently energizing the cooking container 3 so that the temperature of the cooking container 3 does not rise abnormally is the first communication. The signal is transmitted from the circuit 19 to the second communication circuit 25. The second communication circuit 25 outputs the control information to the inverter unit of the power supply circuit 24 so that the heating coil 22 is energized intermittently. At this time, the control circuit 18 operates the power supply circuit 17 to apply a voltage of 100 V to the trunk heater 13 and the lid heater 12 to flow current. By heating the side surface of the cooking vessel 3 with the body heater 13, the rice that is the object to be heated can be cooked uniformly and plumply. Moreover, the condensation which adheres to the inner lid 8 can be eliminated by heating the inner lid 8 with the lid heater 12, and the temperature in the cooking vessel 3 can be kept high.

  Thereafter, the control circuit 18 determines whether or not the object to be heated in the cooking container 32 has reached the boiling temperature from the temperature detected by the lid temperature sensor 7, and when the temperature detected by the lid temperature sensor 7 has reached the boiling temperature. Then, the process proceeds to the high-temperature boiling heating process, and the control information for continuously energizing the heated object in the cooking container 3 so as to reach a predetermined temperature or higher at which boiling can be maintained is transmitted from the first communication circuit 19 to the second communication circuit 25. And start measuring time. The second communication circuit 25 outputs the control information to the inverter unit of the power supply circuit 24 so that the heating coil 22 is energized continuously. On the other hand, the control circuit 18 determines whether or not the above-described measurement time has passed the high-temperature boiling time, and when the measurement time has not passed the high-temperature boiling time, continues the above-described continuous energization.

  Further, when the control circuit 18 detects that the high temperature boiling time has passed, the control circuit 18 sends the control information for continuous energization from the first communication circuit 19 to lower the temperature of the heated object in the cooking container 3 to a temperature at which boiling can be maintained. 2 to the communication circuit 25. The second communication circuit 25 outputs the control information to the inverter unit of the power supply circuit 24 so that the heating coil 22 is energized continuously. Further, the control circuit 18 determines whether or not the dry-up temperature at which the rice cooking water disappears due to the water absorption gelatinization and evaporation of the rice during the boiling maintenance control is determined from the detection temperature of the lid temperature sensor 7, and has reached the dry-up temperature. If not, the boiling maintenance control described above is performed, and when the dry-up temperature is detected, control information for intermittent energization that has entered the steaming process and reduced the current is transferred from the first communication circuit 19 to the second communication circuit 25. The heating coil 22 is intermittently energized based on the control information. At this time, the control circuit 18 determines whether or not the time of the steaming process has elapsed, and when the time of the steaming process has elapsed, information for stopping the energization of the heating coil 22 from the first communication circuit 19 to the second. To the communication circuit 25, and the induction heating of the basic container 3 is terminated. Further, the operation of the power supply circuit is stopped, and the energization to the trunk heater 13 and the lid heater 12 is stopped.

  As described above, according to the first embodiment, since the cooking device 1 is not provided with the heating coil and the power supply circuit for energizing the heating coil, the cooking device can be reduced in weight, and thus is easy to carry. . Moreover, since the cooking appliance 1 is made to heat with the induction heating cooking appliance 21 which uses 200V as a power supply, it can cook with strong firepower.

  Further, the power of the body heater 13 and the lid heater 12 provided in the cooking device 1 is set to a voltage generated in the power receiving coil 14 magnetically coupled to the power feeding coil 23 mounted on the induction heating cooking device 21, and induction is performed. Since the cooking container 3 in the cooking device 1 is induction-heated by the heating coil 22 provided in the heating cooking device 21, cooking can be started simply by placing the cooking device 1 on the induction heating cooking device 21. It becomes possible, and the configuration of the cooker 1 is simpler than that of the conventional rice cooker, and since no power cord is required, even if it is used around water, there is no intrusion of water through the power cord. Therefore, there is no short circuit caused by water, and the risk of fire can be prevented.

  Since the operation / display unit 16 is provided in the cooking device 1 so that the operation mode can be selected, the operation / display unit of the induction heating cooker 21 can be simplified.

  In addition, when transmitting control information from the first communication circuit 19 to the second communication circuit 25, the control information is transmitted using radio waves, so that failure of the circuit due to spillage of water or ingredients can be prevented. Can do.

  In the first embodiment, it has been described that the induction heating cooker 21 is provided with the heating coil 22 and the feeding coil 23. However, the present invention is not limited to this. The heating coil 22 is composed of two or more coils having different diameters, and the coil having the larger diameter and the power receiving coil 14 of the cooking device 1 are magnetically coupled. Also good. In this case, by controlling only the coil having a large diameter separately, the timing of power feeding to the cooking device 1 can be controlled, and control for separately heating the lid heater 12, the body heater 13, and the bottom of the cooking vessel 3 can be realized.

  Moreover, although the container temperature sensor 6 was provided in the cooking device 1, the container temperature sensor 6 may be provided in the induction heating cooker 21 so that the temperature of the cooking container 3 can be detected. In this case, the temperature detected by the container temperature sensor 6 is output from the second communication circuit 25 to the control circuit 18 via the first communication circuit 19. Thereby, since the container temperature sensor 6 is not mounted in the cooking device 1, the cost of the cooking device 1 can be suppressed. Moreover, it becomes possible to store the cooking appliance 1 compactly.

  Moreover, the control circuit 18 provided in the cooker 1 has the data and the material of the cooking container 3 used in the cooker 1 as data, and the cooking container 3 stored in the cooker 1 when heating is started. It may be determined whether or not is appropriate.

  When the control information is transmitted from the first communication circuit 19 to the second communication circuit 25, the control information is transmitted using radio waves, but the connector is connected to the first communication circuit 19 and the second communication circuit 25. And the connector may be connected when the cooker 1 is placed on the induction heating cooker 21.

  Furthermore, although the structure was described for the induction cooking device 21 for desktop use, a built-in type may be used. In this case as well, an induction heating cooker with a strong heating power is drawn by pulling in the power supply of 200V.

Embodiment 2. FIG.
FIG. 2 is a schematic cross-sectional view showing a side surface of the cooking device according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the part similar to Embodiment 1 demonstrated in FIG.
In the heating cooking apparatus shown in FIG. 2, a first convex portion 31 is formed at the bottom of the cooking device 1 so as to be recessed upward, and is recessed upward on the mounting surface of the cooking device 1 of the induction heating cooking device 21. The 2nd convex part 32 formed by is provided. The first communication circuit 19 is attached to the upper surface of the first protrusion 31, and the second communication circuit 25 is attached in the recess of the second protrusion 32.

  When the cooker 1 is viewed from below, a recess is formed by the first convex portion 31 at the bottom, and when the induction heating cooker 21 is viewed from above, the second convex portion is placed on the mounting surface of the cooker 1. 32 is in a protruding state. When placing the cooker 1 on the induction heating cooker 21, the second projection 32 of the induction heating cooker 21 is inserted into the recess of the first projection 31 provided at the bottom of the cooker 1. Is placed on the induction heating cooker 21. The recess by the first convex portion 31 formed on the bottom of the cooking device 1 and the second convex portion 32 formed on the mounting surface of the cooking device 1 of the induction heating cooker 21 are the first of the cooking device 1. The communication circuit 19 and the second communication circuit 25 of the induction heating cooker 21 are positioned, so that the positions of the communication circuits 19 and 26 can be matched.

Embodiment 3 FIG.
3 is an external perspective view showing a cooking device of the heating cooking apparatus according to Embodiment 3 of the present invention.
In Embodiment 3, the recessed holding part 33 formed from the side part lower part of the cooking appliance 1 to the bottom part is provided. The grip 33 is also provided on the opposite side. The grip portion 33 makes it easy to carry the cooking device 1.

  Instead of the grip portion 33 described above, a handle portion 34 rotatably attached to both side surfaces of the cooking device 1 may be provided as shown in FIG.

Embodiment 4 FIG.
FIG. 5 is an external perspective view showing a cooking device and a heat insulation stand of a heating cooking apparatus according to Embodiment 4 of the present invention, and FIG. 6 is a schematic cross-sectional view showing a side surface of the heat insulation stand.
The fourth embodiment includes a heat insulating stand 40 for maintaining the temperature of the cooker 1 after cooking. The heat insulating stand 40 is formed in a quadrilateral shape when viewed from above, and the mounting surface of the cooking device 1 is recessed downward in accordance with the size of the cooking device 1. In addition, an operation / display unit 43 is provided on the edge of one side of the quadrilateral, and a detection means 44 such as a touch sensor for detecting the placement of the cooking device 1 is provided on the placement surface.

  The heat insulating stand 40 includes a heating unit 41 provided on the surface opposite to the mounting surface and a power circuit 42 for the heating unit 41. The power supply circuit 42 is configured to enable the operation of turning on the power switch of the operation / display unit 43 when the power cord connected to the outlet is connected and the cooking device 1 is detected by the detection means 44. That is, the power supply circuit 42 energizes the heating means 41 when the power switch is turned on while the detection means 44 detects the placement of the cooking device 1. In addition to the power switch, for example, the operation / display unit 43 is provided with a switch for adjusting the power for heat retention, a timer switch for setting the heat retention time, and the like.

The heat-insulating stand 40 can prevent the object to be heated in the cooking container 3 stored in the cooking device 1 from being cooled, and can maintain the temperature.
In addition, although the to-be-heated object in the cooking container 3 was kept warm with the heating means 41, you may enable it to heat-cook the to-be-heated object in the cooking container 3 with the heating means 41.

It is a schematic sectional drawing which cut | disconnects and shows the side surface of the heat cooking apparatus which concerns on Embodiment 1 of this invention. It is a schematic sectional drawing which cut | disconnects and shows the side surface of the heat cooking apparatus which concerns on Embodiment 2 of this invention. It is an external appearance perspective view which shows the cooking device of the heat cooking apparatus which concerns on Embodiment 3 of this invention. It is an external appearance perspective view of the heat cooking apparatus which shows another form. It is an external appearance perspective view which shows the cooking device and heat retention stand of the heat cooking apparatus which concerns on Embodiment 4 of this invention. It is a schematic sectional drawing which cut | disconnects and shows the side surface of a heat retention stand.

Explanation of symbols

  1: cooker, 2: container cover, 3: cooking container, 4: heat-resistant plate, 5: support member, 6: container temperature sensor, 7: lid temperature sensor, 8: inner lid, 9: locking member, 10: Packing, 11: outer lid, 12: lid heater, 13: body heater, 14: power receiving coil, 15: cartridge, 16: operation / display unit, 17: power supply circuit, 18: control circuit, 19: first communication circuit , 21: induction heating cooker, 22: heating coil, 23: feeding coil, 24: power supply circuit, 25: second communication circuit, 31: first convex part, 32: second convex part, 33: gripping Part: 34: handle part, 40: heat insulation stand, 41: heating means, 42: power supply circuit, 43: operation / display part, 44: detection means.

Claims (9)

A cooker having a container cover in which a cooking container for putting an object to be heated is detachably stored, and a lid removably attached to the upper part;
An induction heating cooker on which the cooker is mounted and having induction heating means for induction heating a cooking container in the cooker;
The induction heating cooker has a power supply coil connected to a power source,
The cooker is provided on a receiving coil that is magnetically coupled to the feeding coil and / or a side of the lid and / or the container cover, and uses the voltage generated in the receiving coil to heat the container. And a cooking device. The cooker is
A first temperature sensor for detecting the temperature of the cooking vessel;
A second temperature sensor for detecting the temperature in the cooking vessel;
The detection temperatures of the first temperature sensor and the second temperature sensor are input, control information for controlling the input of the induction heating unit is generated based on the detected temperature, and the input of the container heating unit is controlled. Control means for
First communication means for transmitting control information generated by the control means,
The induction heating cooker
The cooking apparatus according to claim 1, further comprising second communication means for controlling an input of the induction heating means based on control information from the first communication means. Providing the first temperature sensor in the induction heating cooker;
The cooking apparatus according to claim 2, wherein the second communication means inputs the temperature detected by the first temperature sensor and notifies the control means via the first communication means. The control means comprises a plurality of operation modes for controlling the induction heating means and the container heating means,
The cooking apparatus according to any one of claims 1 to 3, wherein the operation mode is selected by operating means provided in the cooking device. A first convex portion formed by being recessed upward at the bottom of the cooker;
A second convex portion that is formed to be recessed upward on the mounting surface of the cooking device of the induction heating cooker, and is detachably inserted into the concave portion of the first convex portion when the cooking device is mounted. And
The first communication means is attached to the upper surface of the first convex portion, and the second communication means is attached in a recess of the second convex portion. The cooking apparatus according to any one of the above.   The cooking device according to any one of claims 1 to 5, wherein the cooking device is provided with a recess from a side surface to a bottom portion.   The cooking device according to any one of claims 1 to 5, wherein the cooking device includes a handle portion.   The cooking device according to any one of claims 1 to 7, further comprising a heat-retaining stand on which the cooking device is placed and having heating means for keeping the cooking device warm.   9. The cooking apparatus according to claim 8, wherein the heat-insulating stand has a mounting surface of the cooking device that is recessed downward in accordance with the size of the cooking device.

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