JP2013156001A - Cooking utensil for high frequency heating and high frequency heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooking utensil for high frequency cooking uniformly raising a temperature by high frequency heating, and stopping temperature rise at a prescribed temperature.SOLUTION: A cooking utensil 1 for high frequency heating includes a plate-shaped elastomer 4, first high frequency heating elements 2 formed by dispersing particles of a magnetic material to a surface of the elastomer 4 into strips, and disposed roughly at an angle of 45°, and second high frequency heating elements 3 formed by dispersing particles of the magnetic material into strips, arranged roughly orthogonally to the first high frequency heating elements 2, and having a temperature rise stopping temperature higher than that of the first high frequency heating element 2.

Description

  The present invention relates to a high-frequency heating cooking utensil that generates heat by high frequency used in, for example, a microwave oven and heats a cooked food, and a high-frequency heating cooker using the high-frequency heating cooking utensil.

  In general, there are a high-frequency heating element configured by mixing a material that generates heat by high frequency into an elastomer, and a high-frequency heating element provided on the upper surface of a heated object placing tray on which an object to be heated is placed.

  In such a thing, when performing grill cooking etc., if it is going to make both the deliciousness of the cooking thing which is a thing to be heated, and the suitable burnt eyes, although it changes with kinds and quantity of a thing to be heated, It is necessary to raise the temperature of the article to be heated to 150 to 300 ° C. in a short time.

  Therefore, there is a heating element that uses a high-frequency heating element made of Y-type hexagonal ferrite as a heating element, and the temperature rise is stopped in a range of 200 to 300 ° C. suitable for cooking food (for example, see Patent Document 1).

  In addition, a high-frequency heating element is composed of a magnetic material having a Curie temperature of less than 400 ° C., a magnetic material having a Curie temperature of 400 ° C. or more, and an elastomer, so that the temperature rise performance is excellent and the rubber is cured in a high temperature environment. Have been proposed that can achieve excellent durability and reliability (see, for example, Patent Document 2).

Japanese Patent Laying-Open No. 2011-9016 (Abstract) JP 2010-153059 (abstract)

  However, even in the case of a high-frequency heating element whose temperature rise is stopped in the range of 200 to 300 ° C. suitable for cooking, especially in a flat shape, the heating unevenness of the high-frequency heating of the high-frequency heating cooker is reflected as it is. Therefore, even if the high-frequency heating element is heated at a high frequency, the temperature does not rise uniformly, and a part where the temperature rises quickly and the temperature is high and a part where the temperature rises slowly and the temperature is low occur. There is a problem that it is easy to become.

  The present invention has been made to solve the above-described problems, and includes a high-frequency heating cooking utensil that uniformly raises the temperature by high-frequency heating and stops the heating at a predetermined temperature, and a high-frequency heating cooking utensil. It aims at providing the used high frequency heating cooking appliance.

  A cooking utensil for high-frequency heating according to the present invention comprises an elastomer formed in a plate shape and at least two types of high-frequency heating elements that are individually disposed on the elastomer and have different temperature rise and stop temperatures due to high-frequency radiation. is there.

  According to the present invention, since at least two types of high-frequency heating elements having different temperature rise stop temperatures due to high-frequency radiation are individually arranged on the elastomer, the temperature of the cooking utensils for high-frequency heating becomes uniform. Therefore, the temperature unevenness of the cooking utensils for high-frequency heating is eliminated, partial overheating of the object to be heated can be prevented, and both deliciousness and moderate burn can be achieved.

It is a perspective view which shows the whole cookware for high frequency heating which concerns on Embodiment 1. FIG. It is a top view of the cooking utensil for high frequency heating shown in FIG. It is sectional drawing of the front view which shows the internal structure of the high frequency heating cooker which concerns on Embodiment 1. FIG. It is a top view of the cooking utensil for high frequency heating which shows the modification of Embodiment 1. It is a top view which shows the whole cookware for high frequency heating which concerns on Embodiment 2. FIG. It is a top view which shows the whole cookware for high frequency heating which concerns on Embodiment 3. FIG. It is a top view of the cooking utensil for high frequency heating which shows the modification of Embodiment 3.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the entire high-frequency heating cooking utensil according to Embodiment 1, and FIG. 2 is a top view of the high-frequency heating cooking utensil shown in FIG.

  1 and 2, a high-frequency heating cooking utensil 1 includes an elastomer 4 formed in a plate shape, and a first high-frequency heating element 2 that is arranged in a mesh pattern on the elastomer 4 and that has a temperature rise stop temperature that differs by high-frequency irradiation. And the second high-frequency heating element 3. The first high-frequency heating element 2 is formed, for example, by dispersing magnetic material particles in a strip shape on the surface of the elastomer 4 and is arranged at an angle of approximately 45 °. The second high-frequency heating element 3 is formed by dispersing magnetic material particles in a strip shape in the same manner as described above, and is disposed so as to be substantially orthogonal to the first high-frequency heating element 2. The first high-frequency heating element 2 and the second high-frequency heating element 3 are arranged at substantially the same interval.

  As the material of the elastomer 4, a material mainly composed of silicon rubber or fluororubber resistant to heat resistance, chemical resistance such as seasonings and water vapor, mechanical shock, and thermal shock is used.

  The first high-frequency heating element 2 and the second high-frequency heating element 3 generate heat by absorbing the high frequency of 2.45 GHz used in a microwave oven or the like, and stop the temperature rise by adjusting the components of the magnetic material. The temperature is different. Here, for example, the temperature increase stop temperature of the first high frequency heating element 2 is set to 200 ° C., and the temperature increase stop temperature of the second high frequency heating element 3 is set to 300 ° C.

  The first high-frequency heating element 2 and the second high-frequency heating element 3 have different amounts of heat generation depending on the amount of high-frequency absorption, and even in one high-frequency heating element, portions and absorptions that easily absorb high frequencies. The ultimate temperature is different from the point where it is difficult to do. For example, when only the first high-frequency heating element 2 is heated by a high frequency, a portion where high frequency is easily absorbed reaches a temperature rise stop temperature (for example, 200 ° C.), but a portion where it is difficult to absorb reaches the temperature rise stop temperature. do not do.

  In the present embodiment, the first high-frequency heating element 2 and the second high-frequency heating element 3 having different temperature rise and stop temperatures are arranged on the surface of the elastomer 4 in a mesh pattern, so that the high-frequency heating cooking utensil 1 The surface can be brought to a substantially uniform temperature. That is, in the portion where the high-frequency absorption is strong, the first high-frequency heating element 2 and the second high-frequency heating element 3 are each efficiently converted into heat, and the first high-frequency heating element 2 is 200 ° C. and the second high-frequency heating element. The body 3 reaches 300 ° C. On the other hand, in the place where the absorption of high frequency is weak, the first high frequency heating element has low heat conversion efficiency and slowly reaches the temperature rise stop temperature, but the second high frequency heating element 3 is efficiently heated to 300 ° C. To reach. Thus, even if there is a portion where the high frequency absorption is weak, the surface temperature of the cooking utensil 1 for high frequency heating becomes substantially uniform.

Next, the internal structure of the high-frequency heating cooker in which the above-described cooking utensil for high-frequency heating 1 is used will be described with reference to FIG.
FIG. 3 is a front sectional view showing the internal structure of the high-frequency heating cooker according to the first embodiment.

  In FIG. 3, the inside of the main body 5 of the high-frequency heating cooker is defined by a heating chamber 6 and an electric chamber 7. On the front surface of the heating chamber 6, a door (not shown) for opening and closing an opening for taking in and out the object to be heated is provided. The door is, for example, a vertical opening door that opens and closes with the lower portion of the main body 5 as a fulcrum, and a window glass is provided at a substantially central portion. An operation panel having a liquid crystal display unit and operation keys is provided on the front surface of the electric chamber 7.

  On both side surfaces of the heating chamber 6, shelf holders 17 that detachably support the object placing tray 16 are provided. An infrared sensor 10 that detects the temperature of an object to be heated in the heating chamber 6 is installed on one side surface of the heating chamber 6. An upper heater 14 (flat heater) is installed above the ceiling surface of the heating chamber 6, and a lower heater 15 (seeds heater) is installed below the bottom surface of the heating chamber 6. A heat insulating material 18 is provided above the upper heater 14 described above.

  High frequency generating means is provided from the inside of the electric chamber 7 to the lower part of the bottom surface of the heating chamber 6. This high-frequency generating means includes a magnetron 8, a high-voltage power generator 9 that supplies driving power to the magnetron 8, a waveguide 11 that propagates high-frequency (microwave) excited from the magnetron 8, and the driving of the antenna motor 12. And a rotating antenna 13 that heats the object to be heated by radiating the high frequency wave propagated to the waveguide 11 into the heating chamber 6.

  As the material of the article to be heated 16, for example, ceramic that transmits high frequency is used. When the object to be heated is heated by using the object to be heated platen 16, the above-described high-frequency heating cooking utensil 1 is placed on the upper surface of the object to be heated object dish 16 and the object to be heated is placed thereon. .

  Next, the operation of the high-frequency heating cooker 5 configured as described above and the heat generating action of the high-frequency heating cooking utensil 1 will be described.

  First, the high-frequency heating cooking utensil 1 is placed on the top surface of the heated object placing tray 16, and the heated object is placed on the high-frequency heating cooking utensil 1, and the high-frequency heating cooking utensil 1 is shown in FIG. As shown in FIG. 3, it is installed on the shelf holders 17 provided on both side surfaces of the heating chamber 6.

  Next, when a heating operation is performed using the operation panel, the antenna motor 12 is driven to rotate the rotating antenna 13, and the magnetron 8 is operated to generate a high frequency. The generated high frequency is radiated from the rotating antenna 13 into the heating chamber 6 through the waveguide 11.

  The high frequency radiated into the heating chamber 6 is directly absorbed by the object to be heated and is absorbed by the first high frequency heating element 2 and the second high frequency heating element 3 constituting the cooking utensil 1 for high frequency heating. At this time, the object to be heated is heated from the inside and heated from the surface by the heat generated by the first high-frequency heating element 2 and the second high-frequency heating element 3.

  In general, when performing high-frequency heating, depending on the type of the high-frequency heating cooker, the heating distribution in which the object to be heated absorbs the high frequency and is heated has strength in the heating chamber 6. For this reason, temperature unevenness often occurs when the object to be heated is heated.

  In the high-frequency heating cooking utensil 1 according to the present embodiment, the first high-frequency heating element 2 and the second high-frequency heating element 3 having different temperature rise and stop temperatures are disposed, and the portion where the high-frequency absorption is strong is as follows. The first high-frequency heating element 2 and the second high-frequency heating element 3 each efficiently convert to heat, and the temperature rise stop temperature, for example, the first high-frequency heating element 2 is 200 ° C., and the second high-frequency heating element 3 is 300. Reach ℃. As a result, the object to be heated can be heated at 200 ° C. to 300 ° C. where the high frequency absorption is strong, and the object to be heated can be burnt.

  On the other hand, in the portion where the high frequency absorption is weak, the first high frequency heating element having a low temperature rise stop temperature has a low heat conversion efficiency and reaches the temperature rise stop temperature slowly, but the second temperature rise stop temperature is high. The high-frequency heating element 3 is efficiently heated, reaches a temperature increase stop temperature, for example, 300 ° C., and can burn the object to be heated.

  By adopting the above-described configuration, even a portion where high-frequency absorption is weak can be efficiently converted into heat and heated to a high temperature. Moreover, since it can suppress that temperature raises too much compared with the surroundings also in the location where a high frequency absorption is strong, the surface of the cooking utensil 1 for high frequency heating can be made into substantially uniform temperature.

  Thereby, the surface of the cooking utensil 1 for high-frequency heating can be brought to a substantially uniform temperature regardless of the type of the high-frequency heating cooker and the high-frequency heating characteristics, so that the object to be heated can be more efficiently and unevenly heated. It becomes possible to heat with less. Moreover, since it becomes possible to give a scorch over the whole to-be-heated material, it can finish better.

  In the first embodiment, the interval between the first and second high-frequency heating elements 2 and 3 arranged in a mesh is made uniform. However, the present invention is not limited to this, and the interval is made dense. May be. In addition, it has been described that the first and second high-frequency heating elements 2 and 3 are arranged in a mesh shape, but an arrangement as shown in FIG. 4 may be used. FIG. 4 is a top view of a high-frequency heating cooking utensil showing a modification of the first embodiment.

  A cooking utensil 1a for high-frequency heating shown in the drawing is composed of an elastomer 4 formed in a plate shape and first and second high-frequency heating elements 2 and 3 arranged in a lattice shape. With this configuration, the surface of the cooking utensil 1 for high-frequency heating can be brought to a substantially uniform temperature regardless of the type of the high-frequency heating cooker and the high-frequency heating characteristics. Heating can be performed with less uneven heating. Moreover, since it becomes possible to give a scorch over the whole to-be-heated material, it can finish better.

  Moreover, in Embodiment 1, although the cooking utensil 1 for high frequency heating was mounted and used on the upper surface of the to-be-heated material mounting dish 16, it is not limited to this. For example, the high-frequency heating cooking utensil 1 may be placed directly on the bottom surface of the heating chamber 6 and used. Alternatively, the high-frequency heating cooking utensil 1 may be bonded to the upper or lower surface of the article to be heated 16 with a heat-resistant adhesive and used integrally with the article to be heated 16. When the cooking utensil 1 for high-frequency heating is bonded to the lower surface of the article to be heated 16, the surface on which the first and second high-frequency heating elements 2 and 3 are arranged is the lower surface of the article to be heated 16. Glue in contact.

  In the first embodiment, it has been described that the first and second high-frequency heating elements 2 and 3 are disposed on the surface of the elastomer 4. However, the magnetic material particles are dispersed in the elastomer 4 in the shape of a band. Thus, the first and second high-frequency heating elements 2 and 3 may have a mesh shape or a lattice shape.

Embodiment 2. FIG.
FIG. 5 is a top view showing the entire cooking utensil for high-frequency heating according to Embodiment 2. FIG. In addition, in the cooking utensil for high frequency heating of Embodiment 2, the same code | symbol is attached | subjected similarly to Embodiment 1 or an equivalent part. Moreover, about the high frequency heating cooker, the thing similar to the high frequency heating cooker of Embodiment 1 demonstrated in FIG. 3 is used.

  A cooking utensil 1b for high-frequency heating according to Embodiment 2 includes an elastomer 4 formed in a plate shape, a strip-shaped first high-frequency heating element 2 disposed at substantially equal intervals in the center of the elastomer 4, and a first The belt-shaped second high-frequency heating element 3 is arranged on both sides of the high-frequency heating element 2 at the same interval as described above. As a result, the first high-frequency heating element 2 having a low temperature rise stop temperature (200 ° C.) is arranged in the central portion substantially opposite to the rotating antenna 13, and the second high temperature rise stop temperature (300 ° C.) high on both sides thereof. The high-frequency heating element 3 is arranged. When the object to be heated is heated using the object to be heated platen 16, the cooking utensil 1 b for high frequency heating is placed on the upper surface of the object to be heated object dish 16 and the top thereof as in the first embodiment. The object to be heated is placed in the heating chamber 6.

  With this configuration, since the temperature rising stop temperature is low in the central portion that is substantially opposite to the rotating antenna 13, the high frequency is absorbed so that the temperature does not become too high. On the other hand, the portions on both sides are weak in high frequency absorption. However, since the temperature rise stop temperature is high, the temperature range is the same as that of the central portion, and the surface of the high-frequency heating cooking utensil 1b can be set to a substantially uniform temperature.

  Thereby, since the surface of the cooking utensil 1b for high-frequency heating can be brought to a substantially uniform temperature regardless of the type of the high-frequency heating cooker and the high-frequency heating characteristics, the object to be heated can be more efficiently and unevenly heated. It becomes possible to heat with less. Moreover, since it becomes possible to give a scorch over the whole to-be-heated material, it can finish better.

  In the second embodiment, the interval between the first and second high-frequency heating elements 2 and 3 is made uniform, but the present invention is not limited to this, and the interval may be made dense.

  Moreover, in Embodiment 2, although the cooking utensil 1b for high frequency heating was mounted and used on the upper surface of the to-be-heated material mounting dish 16, it is not limited to this. For example, the high-frequency heating cooking utensil 1b may be placed directly on the bottom surface of the heating chamber 6 for use. Alternatively, the high-frequency heating cooking utensil 1b may be bonded to the upper or lower surface of the article to be heated 16 with a heat-resistant adhesive and used integrally with the article to be heated 16. When the cooking utensil 1b for high-frequency heating is bonded to the lower surface of the article to be heated 16, the surface on which the first and second high-frequency heating elements 2 and 3 are disposed is the lower surface of the article to be heated 16. Glue in contact.

  In the second embodiment, it has been described that the first and second high-frequency heating elements 2 and 3 are disposed on the surface of the elastomer 4. However, the magnetic material particles are dispersed in the elastomer 4 in the shape of a band. Thus, the first and second high-frequency heating elements 2 and 3 may be configured.

Embodiment 3 FIG.
FIG. 6 is a top view showing the entire cooking utensil for high-frequency heating according to Embodiment 3. In addition, in the cooking utensil for high frequency heating of Embodiment 3, the same code | symbol is attached | subjected to the same part as Embodiment 1, or an equivalent part. Moreover, about the high frequency heating cooker, the thing similar to the high frequency heating cooker of Embodiment 1 demonstrated in FIG. 3 is used.

  The cooking utensil 1c for high-frequency heating in the third embodiment includes an elastomer 4 formed in a plate shape, a first high-frequency heating element 2 disposed at a substantially central portion of the elastomer 4, and a first high-frequency heating element 2. The second high-frequency heating element 3 is formed in a ring shape so as to surround the outer periphery. When the object to be heated is heated using the object to be heated platen 16, the high-frequency heating cooking utensil 1 c is placed on the upper surface of the object to be heated object dish 16 and heated thereon, as in the first embodiment. An object to be heated is placed and stored in the heating chamber 6.

  The first high-frequency heating element 2 described above is disposed at a position substantially opposite to the rotating antenna 13. Since this is a place where absorption of high frequencies is relatively easy, the first high-frequency heating element 2 having a low temperature rise stop temperature is arranged so that the high frequency is absorbed and does not become too high. On the other hand, since the outer peripheral portion of the first high-frequency heating element 2 is a portion where absorption of high frequencies is relatively difficult, the second high-frequency heating element 3 having a high temperature rise stop temperature is disposed. By disposing the second high-frequency heating element 3 in that portion, the temperature rise stop temperature is high even if the high-frequency absorption is weak, so that it can be raised to the same temperature band as the first high-frequency heating element 2. It becomes.

  With the above configuration, the difference in temperature rise between the central portion of the elastomer 4 and the outer peripheral portion of the central portion can be reduced, so that the surface of the cooking utensil 1c for high-frequency heat generation is almost uniform. Temperature.

  Thereby, since the surface of the cooking utensil 1c for high-frequency heating can be brought to a substantially uniform temperature regardless of the type of the main body 5 of the high-frequency heating cooker and the high-frequency heating characteristics, the object to be heated can be made more efficient and It is possible to heat with less heating unevenness. Moreover, since it becomes possible to burn over the whole object to be heated, the appearance can be improved.

  In the third embodiment, the first high-frequency heating element 2 is arranged at the substantially central portion of the elastomer 4, and the second high-frequency heating element 3 is arranged so as to surround the outer periphery of the first high-frequency heating element 2. However, the present invention is not limited to this. For example, it is good also as the 1st and 2nd high frequency heat generating bodies 2 and 3 of a shape as shown in FIG. FIG. 7 is a top view of a high-frequency heating cooking utensil showing a modification of the third embodiment.

  A cooking utensil for high frequency heating 1d shown in the figure includes an elastomer 4 formed in a plate shape, a circular first high frequency heating element 2 disposed substantially at the center of the elastomer 4, and a first high frequency heating element. 2 and a ring-shaped second high-frequency heating element 3 arranged so as to surround the outer periphery of 2. The first high-frequency heating element 2 described above is disposed at a position substantially opposite to the rotating antenna 13 as described above.

  Thereby, the surface of the cooking utensil 1d for high-frequency heating can be brought to a substantially uniform temperature regardless of the type of the main body 5 of the high-frequency heating cooker and the high-frequency heating characteristics. It is possible to heat with less heating unevenness. Moreover, since it becomes possible to burn over the whole object to be heated, the appearance can be improved.

  In the third embodiment, the high-frequency heating cooking utensil 1d is placed on the surface of the article to be heated 16 and used. However, the present invention is not limited to this. For example, the high-frequency heating cooking utensil 1 c may be placed directly on the bottom surface of the heating chamber 6 and used. Alternatively, the high-frequency heating cooking utensil 1c may be bonded to the front or back surface of the article to be heated 16 with a heat-resistant adhesive and used integrally with the article to be heated 16. When the cooking utensil for high frequency heating 1 c is bonded to the lower surface of the object to be heated placing plate 16, the surface on which the first and second high frequency heating elements 2 and 3 are arranged is the lower surface of the object to be heated placing plate 16. Glue in contact.

  In the first embodiment, it has been described that the first and second high-frequency heating elements 2 and 3 are disposed on the surface of the elastomer 4, but the magnetic material particles are dispersed in the elastomer 4 so that the first The second high-frequency heating elements 2 and 3 may be configured.

  DESCRIPTION OF SYMBOLS 1 Cooking tool for high frequency heating, 2 1st high frequency heating element, 3nd high frequency heating element, 4 elastomer, 5 main body of high frequency heating cooker, 6 heating chamber, 7 electrical chamber, 8 magnetron, 9 high voltage power generator DESCRIPTION OF SYMBOLS 10 Infrared sensor, 11 Waveguide, 12 Antenna motor, 13 Rotating antenna, 14 Upper heater, 15 Lower heater, 16 To-be-heated object mounting tray, 17 Shelf holding part, 18 Heat insulating material.

Claims (9)

An elastomer formed in a plate shape;
A cooking utensil for high-frequency heating, comprising at least two types of high-frequency heating elements individually disposed on the elastomer and having different temperature rise and stop temperatures by high-frequency radiation.   The cooking utensil for high frequency heating according to claim 1, wherein the high frequency heating elements are arranged in a mesh shape.   2. The cooking utensil for high frequency heating according to claim 1, wherein the high frequency heating elements are arranged in a grid pattern. The high-frequency heating element includes a first high-frequency heating element and a second high-frequency heating element having a higher temperature stoppage temperature than the first high-frequency heating element,
The first high-frequency heating element is disposed in a central portion of the elastomer having a large amount of high-frequency radiation, and the second high-frequency heating element is disposed around the first high-frequency heating element. Item 1. A cooking utensil for high frequency heating according to Item 1.   5. The cooking utensil for high frequency heating according to claim 4, wherein each of the first and second high frequency heating elements is formed in a strip shape.   The first high-frequency heating element is formed in a quadrilateral shape, and the second high-frequency heating element is formed in a ring shape so as to surround the outer periphery of the first high-frequency heating element. 4. A cooking utensil for high frequency heating according to 4.   The first high-frequency heating element is formed in a circular shape, and the second high-frequency heating element is formed in a ring shape so as to surround an outer periphery of the first high-frequency heating element. 4. A cooking utensil for high frequency heating according to 4. A heating chamber for storing an object to be heated;
High-frequency generating means for radiating high-frequency into the heating chamber and high-frequency heating an object to be heated housed in the heating chamber;
A high-frequency heating cooker comprising the high-frequency heating cooking appliance according to any one of claims 1 to 7, wherein the object to be heated is heated by generating heat by the high frequency. Removably attached to the heating chamber, provided with a heated object placing tray for placing the heated object,
The high-frequency cooking device according to claim 8, wherein the cooking utensil for high-frequency heating is provided on either the upper surface or the lower surface of the dish to be heated.

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