JP5367135B2 - Induction heating cooker - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking grill and an induction heating cooker using the cooking grill, and more particularly, a cooking grill that uniformly heats food to be heated such as fish and facilitates cleaning after cooking, and induction heating cooking using the cooking grill It is about a vessel.

  For example, according to the conventional cooking grill as described in Patent Document 1, in order to uniformly heat the food to be heated such as fish, the combustion flame from the burner under the grill is removed from the fish placed on the grill. When using and baking, a heating plate having a plurality of openings is arranged below the grill net, and the positions of the plurality of openings are adjusted so that high-temperature hot air reaching the food to be heated is uniformly induced throughout the food to be heated. It has been proposed.

  According to Patent Document 1, by providing a burning plate having a plurality of openings, it is possible to surely heat the food to be heated to reduce unevenness of the fish, but the oil and moisture generated from the food to be heated are There was an inconvenience that it became oily smoke and scattered in the cooking grill, and cleaning after cooking was troublesome or complicated. In particular, the structural member including a heating means such as a burner fixed in the cooking grill has a complicated outer shape, and it is difficult to completely wipe off the dirt caused by fish oil and smoke, the odor remains, and hygiene There was a problem above.

Japanese Patent Laid-Open No. 03-0666329

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cooking grill that heats the food to be heated uniformly and facilitates cleaning after cooking, and an induction heating cooker using the cooking grill.

  A cooking grill according to the present invention is an induction heating cooker including a grill housing and a top induction heating coil disposed above the grill housing. The grill housing includes a storage container for storing the food to be heated, and the storage. A grill induction heating coil disposed above the container for heating the storage container, and a magnetic shield plate made of a ferromagnetic material disposed between the grill induction heating coil and the top induction heating coil. The storage container is made of a material that is induction-heated by the grill induction heating coil but is not induction-heated by the top induction heating coil.

  ADVANTAGE OF THE INVENTION According to this invention, the to-be-heated food can be heated uniformly, and the cooking grill which can be easily cleaned after cooking can be provided.

It is a schematic perspective view of the induction heating cooking appliance which concerns on Embodiment 1 of this invention. It is schematic sectional drawing of the induction heating cooking appliance seen from the II-II line | wire of FIG. It is sectional drawing of an induction heating cooking appliance when a front panel door is pulled out. It is a perspective view of the storage container removed from the grill housing. FIG. 6 is a schematic cross-sectional view seen from the line VV in FIG. 5. It is a rear view of the storage container shown in FIG. It is a schematic sectional drawing of a storage container when a cover part is opened. It is a rough expanded sectional view of the grill heating part which concerns on Embodiment 1 when cooking the to-be-heated food. It is a rear view similar to FIG. 2 of the storage container containing a slide door. It is sectional drawing similar to FIG. 5 of the storage container containing a non-return valve. 6 is a schematic cross-sectional view of a grill heating unit according to Embodiment 2. FIG. 6 is a schematic perspective view of a grill heating unit according to Embodiment 2. FIG. It is a perspective view of another induction heating cooking appliance which has a grill heating part of the present invention.

  Hereinafter, an embodiment of an induction heating cooker including a cooking grill according to the present invention will be described with reference to the accompanying drawings. In the description of each embodiment, terms indicating directions (for example, “upward direction” and “downward direction”) are used as appropriate in order to facilitate understanding. Is not intended to limit the present invention.

Embodiment 1 FIG.
The first embodiment of the induction heating cooker according to the present invention will be described in detail below with reference to FIGS. FIG. 1 is a perspective view schematically illustrating the entire induction heating cooker 1 according to the present invention. In FIG. 1, an induction heating cooker 1 schematically includes a housing 2, a top plate 3 formed of glass or the like covering almost the entire upper surface thereof, a pair of IH heating units 4 a and 4 b arranged on the left and right sides, and radial heating. A part 5 and a cooking grill 6 are provided. Although not shown here, the cooking grill 6 has a grill heating section 7.

  The induction heating cooker 1 also has an operation panel 8 and output adjustment dials 9a and 9b used for the user to operate the IH heating units 4a and 4b, the radiant heating unit 5 and the grill heating unit 7, and their control states. A liquid crystal display unit 10 for displaying is provided. Furthermore, the induction heating cooker 1 according to the first embodiment has an exhaust window 11 and a pair of intake windows 12a and 12b provided on the rear surface side of the top plate 3.

  FIG. 2 is a schematic sectional view taken along line II-II in FIG. 1 and shows the inside of the cooking grill 6. The cooking grill 6 according to the present invention is roughly composed of a grill housing 18 including a top plate 14 and a bottom plate 16, a front panel door 20, a storage container 30 for storing heated food F such as fish, and a storage container 30. Heating means 40a, 40b composed of a sheathed heater or the like, preferably disposed on both, is provided on at least one of the upper side and the lower side. Each of the IH heating units 4a and 4b has a top induction heating coil 22 disposed adjacent to the top plate 3, and is placed on the top plate 3 when a high frequency current is supplied from a high frequency power source (not shown). A cooking utensil such as a pan placed is heated. Further, the radiant heating unit 5 similarly has a radiant heater 23 disposed adjacent to the top plate 3.

  The cooking grill 6 shown in FIG. 2 includes a support member 24 attached to the front panel door 20 and a rail portion 26 fixed to the grill housing 18, and a roller is provided between the support member 24 and the rail portion 26. Alternatively, a sliding member 28 such as a ball bearing is disposed.

The storage container 30 is detachably installed on the support member 24. When the front panel door 20 is opened and closed, the support member 24 and the storage container 30 are configured to slide on the rail portion 26 as shown in FIG. ing. When the support member 24 and the storage container 30 are further pulled out to the front panel door 20 side, the storage container 30 can be easily detached from the support member 24 (the grill housing 18).
The storage container 30 and the front panel door 20 may be integrated or simply connected, and the storage container 30 may be removed from the grill housing 18 together with the front panel 20.

  4 is an enlarged perspective view of the storage container 30 removed from the grill housing 18, and FIG. 5 is a cross-sectional view taken along the line VV of FIG. As illustrated in FIGS. 4 and 5, the storage container 30 has a substantially rectangular outer shape, and includes a main body storage portion 32 and a lid portion 34 that can be opened and closed with respect to the main body storage portion 32. The lid part 34 may have a handle part 36 for making it easy for the user to open and close. Moreover, it is preferable that the storage container 30 has the window part 38 comprised with transparent materials, such as heat resistant glass, so that a user can confirm the state of the to-be-heated food F of the storage container 30 even during cooking. Furthermore, you may comprise the whole storage container 30 with transparent materials, such as heat resistant glass.

  The storage container 30 is made of a material having high heat conductivity in order to uniformly cook the food F to be heated, and is made of a material having a large heat capacity such as an earthen pot when it is desired to keep the food for a long time after heating. When it is required to quickly return to room temperature after completion of heating, it is preferable to form with a material having a small heat capacity. That is, it is preferable to prepare storage containers 30 made of different constituent materials and select an appropriate storage container 30 depending on the heated food F to be cooked. In addition, the storage container 30 may be divided into two parts in the upper and lower sides, and the food F to be heated may be arranged in two stages. In Embodiment 1, the sheathed heater is used as the heating means, but a conventional gas burner may be used.

  FIG. 6 is a rear view of the storage container 30. As shown in FIGS. 5 and 6, the storage container 30 has only one opening 41 on the rear side (rear side), and when the lid 34 closes the main body storage 32, the opening 41 is excluded. And substantially hermetically sealed. The storage container 30 has a partition plate 42 disposed adjacent to the opening 41 in order to prevent oil smoke generated from the heated food F such as fish from being scattered outside through the opening 41. It is preferable to have.

  Referring to FIGS. 2 and 3 again, the cooking grill 6 has an exhaust device 44 that forcibly exhausts the smoke generated in the storage container 30 to the outside of the grill housing 18, and preferably thermally decomposes the smoke. A smoke eliminator 46 is provided. Although not limited to this, the exhaust device 44 may be a sirocco fan provided in the exhaust duct 45, and the smoke eliminator 46 may be one using a palladium catalyst.

Next, the use procedure and operation | movement of the induction heating cooking appliance 1 which concern on this invention are demonstrated.
First, the user removes the storage container 30 from the grill housing 18, opens the lid portion 34 as shown in FIG. 7, and puts the heated food F such as fish into the main body storage portion 32.

  After the lid portion 34 is hermetically sealed to the main body housing portion 32, the front panel door 20 is pulled out, the storage container 30 is installed on the support member 24, and the front panel door 20 is pushed in so that the storage container 30 is fixed to the grill housing 18. It arrange | positions in the heating position of (FIG. 2).

  When power is supplied to the sheathed heaters 40a and 40b using the operation panel 8, the sheathed heaters 40a and 40b heat the storage container 30 as shown in FIG. 8, and the heated storage container 30 is accommodated inside by the radiant heat. The cooked food F to be heated is heated. That is, according to the induction heating cooker 1 according to the present invention, the food F to be heated is uniformly heated by the radiant heat from the entire storage container 30, so that uneven baking is less likely to occur. In particular, when the food F to be heated is a fish or the like, a high-temperature grill net that contacts the main body housing portion 32 when the grill 48 is placed in the main body housing portion 32 and the fish is placed thereon and heated. 48 makes it possible to create a beautiful grille.

  In general, when the heated food F is heated, moisture and oil generated from the heated food F are scattered as oil smoke (FIG. 8). However, according to the induction heating cooker according to the present invention, the scattered oil smoke is thermally decomposed by the smoke eliminating device 46 even if it adheres to the inside of the storage container 30 (including the partition plate 42). Thus, substantial contamination of the smoke eliminator 46, the exhaust device 44 (including the exhaust duct 45) and the exhaust window 11 can be prevented.

  Further, the storage container 30 has only one opening (exhaust port) 40, and the lid 34 and the main body storage part 32 are hermetically sealed, so that air does not flow in from the outside. The gas generated from the food F to be heated is filled and the inside of the storage container 30 can be filled and maintained in a substantially low concentration oxygen state. Therefore, according to the present invention, it is possible to prevent oil smoke generated from the food F to be heated from burning (fire the fish), and thus it is possible to realize the induction heating cooker 1 with high safety. .

  Alternatively, a water tray (not shown) may be arranged in the storage container 30 and water may be poured into the storage container 30 so that the storage container 30 is filled with water vapor. At this time, in order to pressurize the inside of the storage container 30 with water vapor, the opening 41 may be provided with a sliding door 50 with a handle 49 (FIG. 9, opening area adjusting means) that can adjust the cross-sectional area thereof. At this time, an effective heating effect (including an effect of removing fat from the heated food F) by the pressurized superheated steam by directly heating the heated food F by the pressurized superheated steam can be expected. Further, a check valve 52 that does not open until the pressure in the storage container 30 becomes a predetermined pressure value or more may be provided in the opening 41 (FIG. 10). In this case, the storage container 30 functions as a so-called pressure cooker, and the induction heating cooker according to the present invention can be applied to stewed dishes such as curry, steamed dishes such as grilled food, and the like other than grilled dishes. The slide door 50 and the check valve 52 may be provided in the main body housing portion 32 instead of the lid portion 34.

  During cooking, the storage container 30 according to the present invention preferably has the window portion 38 made of a transparent material as described above, and confirms the state of grilled fish without opening and closing the lid portion 34. That is, the cooking state of the heated food F can be visually confirmed without substantially lowering the temperature in the storage container 30.

  Although not shown in detail, a thermocouple for detecting the surface temperature of the grill housing 18 or the storage container 30, an electrical temperature sensor such as a thermistor or a platinum resistance wire, or an optical temperature sensor such as an infrared CCD is provided. Also good.

  After cooking, after the storage container 30 has cooled sufficiently, the storage container 30 can be removed from the grill housing 18 and washed entirely. Therefore, according to the present invention, the clean and hygienic cooking grill 6 that does not leave a bad odor can be realized by the ease of cleaning of the storage container 30 and the structure for preventing the scattering of oil smoke and the like of the grill housing 18.

Embodiment 2. FIG.
Embodiment 2 of the induction heating cooker according to the present invention will be described in detail below with reference to FIGS. The induction heating cooker 2 according to the second embodiment has the same configuration as the induction heating cooker 1 of the first embodiment except that a grill induction heating coil is used as a heating means instead of a sheathed heater. Description of overlapping contents is omitted.

  FIG. 11 is a cross-sectional view of the cooking grill 6 according to Embodiment 2, which is the same as FIG. FIG. 12 is a perspective view of the lower grill heating unit 7 ′ shown in FIG. 11. 12 includes inner and outer grill induction heating coils 56b and 58b, and a ferrite plate 60 made of a ferromagnetic material disposed below the inner and outer grill induction heating coils 56b and 58b. The ferrite plate 60 preferably has projections 62b, 64b, extending upward on the inside of the inner grill induction heating coil 56b, between the inner and outer grill induction heating coils 56b, 58b, and on the outer side of the outer grill induction heating coil 58b. 66b. When a high-frequency current is supplied to the inner and outer grill induction heating coils 56b and 58b disposed on the lower side of FIG. 12, the high-frequency magnetic field generated thereby causes the bottom 31 of the storage container 30, the ferrite plate 60, and the protrusions 62b, A closed magnetic circuit is formed at 64b and 66b, and the bottom 31 of the storage container 30 is induction-heated by Joule heat of eddy current generated at the bottom 31 of the storage container 30. Similarly, the upper grill induction heating coil 56a shown in FIG. 11 has inner and outer grill induction heating coils 56a and 58a, and a ferrite plate 60a (including protrusions) made of a ferromagnetic material disposed thereabove. The lid portion 34 of the storage container 30 is induction-heated by supplying a high-frequency current to the inner and outer grill induction heating coils 56a and 58a.

  At this time, the ferrite plate 60a disposed above the storage container 30 has a high-frequency magnetic field generated by the inner and outer grill induction heating coils 56a and 58a provided on the top, such as a pan on the top plate 3 shown in FIG. It is possible to prevent the cooking utensils from being unintentionally heated. That is, the ferrite plate 60 a disposed above the storage container 30 is a magnetic shield plate provided between the grill induction heating coils 56 a and 58 a disposed above the storage container 30 and the top induction heating coil 22. Function.

  Alternatively, the top induction heating coil 22 induction-heats only the cooking utensil on the top plate 3 and the grill induction heating coils 56a and 58a induction-heat only the storage container 30; The storage container 30 is configured using different materials, and the top induction heating coil 22 and the grill induction heating coils 56a and 58a are selectively controlled under the driving conditions (driving frequency, etc.) specific to each component material. May be. In other words, the storage container 30 is configured by selecting a metal material that is induction-heated by the grill induction heating coils 56a and 58a, but is not induction-heated by the top induction heating coil 22, and the top is selected according to each component material. The induction heating coil 22 and the grill induction heating coils 56a and 58a are controlled. Thus, the cooking utensils on the storage container 30 and the top plate 3 can be selectively heated.

  In the above embodiment, an induction heating cooker having a so-called center grill structure has been described with reference to FIG. 1, but the present invention is not limited to this, and a cooking grill as shown in FIG. The present invention can be similarly applied to a conventional induction heating cooker 1 ′ in which 6 is biased to one of the side surfaces.

1: induction heating cooker, 2: housing, 3: top plate, 4: IH heating unit, 5: radiant heating unit, 6: grill for cooking, 7, 7 ': grill heating unit, 8: operation panel, 9: Output adjustment dial, 10: Liquid crystal display, 11: Exhaust window, 12: Intake window, 14: Top plate, 16: Bottom plate, 18: Grill housing, 20: Front panel door, 22: Top induction heating coil, 23: Radiant heater , 24: support member, 26: rail portion, 28: sliding member, 30: storage container, 32: main body storage portion, 34: lid portion, 36: handle portion, 38: window portion, 40: sheathed heater, 41: opening Part, 42: partition plate, 44: exhaust device, 45: exhaust duct 46: smoke extinguishing device, 48: grille, 49: handle, 50: slide door (opening area adjusting means), 52: check valve, 56: Grill induction heating, 0: ferrite plate, 62, 64, 66: protrusion, F: the heated food.

Claims (7)

In an induction heating cooker including a grill housing and a top induction heating coil disposed above the grill housing,
The grill housing includes a storage container for storing the food to be heated, a grill induction heating coil disposed above the storage container for heating the storage container, the grill induction heating coil, and the top induction heating. A magnetic shield plate made of a ferromagnetic material disposed between the coils,
The storage container is made of a material that is induction-heated by a grill induction heating coil but is not induction-heated by a top induction heating coil.   The storage container has a main body storage portion, a lid portion that can be opened and closed with respect to the main body storage portion, and an opening portion. During cooking, the storage container is substantially hermetically sealed except for the opening portion. The induction heating cooker according to claim 1, further comprising exhaust means for exhausting gas generated from the food to be heated from the storage container through the opening.   The induction heating cooker according to claim 1 or 2, wherein the exhaust means and the grill induction heating coil are fixed in the grill housing, and the storage container is detachably installed from the grill housing. It has a front panel door arranged on the front of the grill housing,
The induction heating cooker according to claim 1, wherein the storage container is slidable in the grill housing by opening and closing the front panel door.   The induction heating cooker according to any one of claims 1 to 4, wherein the storage container includes a main body storage portion and a lid portion that can be opened and closed with respect to the main body storage portion.   The induction heating cooker according to claim 2, wherein the storage container has an opening area adjusting means or a check valve disposed in the opening.   The induction heating cooker according to any one of claims 1 to 6, wherein at least a part of the storage container is made of a transparent material, and the inside of the storage container can be visually recognized.

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