JP2017158850A - Package for heating and package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package for heating which can heat a heated material in a short time while avoiding an occurrence of uneven heating and can increase handling properties of the package for heating, and a package.SOLUTION: A package 10 for heating is arranged between a first electrode and a second electrode and is heated by high-frequency dielectric heating. The package 10 for heating comprises a heated material 20 and a package 30. The package 30 includes a first metal layer 50 arranged on a first facing surface, a second metal layer 51 arranged on a second facing surface, and a conduction part 52 for establishing the electrical continuity between the first metal layer 50 and the second metal layer 51. The first metal layer 50 includes a first metal outer peripheral edge covering part 50a for covering an outer peripheral edge of the first facing surface and a first metal opening part 50b formed inside the first metal outer peripheral edge covering part 50a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a heating package and a package that are disposed between opposed first and second electrodes and are heated by high-frequency dielectric heating.

  Conventionally, as a method for heating a material to be heated such as frozen food, a method is known in which a material to be heated disposed between a first electrode and a second electrode arranged opposite to each other is heated by high-frequency dielectric heating.

  In such high-frequency dielectric heating, the high-frequency power absorbed per unit volume is determined by the dielectric constant, dielectric loss, electric field strength, etc. of the material to be heated. There will be a good part and a poorly exothermic part. Therefore, when dielectric heating is performed in accordance with the thawing of the poorly exothermic part of the material to be heated, the heat generating runaway occurs in the part having good exothermicity after a certain heating time has elapsed, resulting in uneven heating of the material to be heated. There was a problem.

  Therefore, conventionally, as a measure to eliminate the occurrence of heating unevenness in the heated material, a plurality of temperature sensors in contact with the heated material are provided, and the lowest temperature detected by the temperature sensor and the highest temperature detected by the temperature sensor are provided. If the temperature difference opens more than a certain level, the output of the high-frequency oscillator is stopped for a certain period of time, and heating unevenness is suppressed using the heat conduction of the material to be heated. There has been proposed a method of thawing by combining dielectric heating and natural thawing by heat conduction by repeatedly turning on and off the output of the high-frequency oscillator until the temperature of the high part reaches the set temperature (see, for example, Patent Document 1). ).

  However, the method described in Patent Document 1 measures the temperature of a plurality of locations of the material to be heated, and repeats on / off of the output of the high-frequency oscillator according to the temperature difference to perform thawing while keeping the temperature difference of the portion small. Therefore, there is a problem that it takes a long time to defrost.

Japanese Patent Laid-Open No. 9-251889 JP2015-159104A

  Therefore, the present applicant, as another measure for eliminating the occurrence of heating unevenness in the heated material described above, is a pair of metal layers that are electrically connected to each other at the leading end and the trailing end of the short cake that is the heated material. It was proposed that the material to be heated is dielectrically heated while shielding the electric field with these metal layers (see Patent Document 2). In this way, by adjusting the heating efficiency of the material to be heated by using electric field shielding by the metal layer, it is possible to avoid the occurrence of heat runaway at the front end portion and the rear end portion of the short cake having good heat generation, It can be heated stably.

  However, according to the method described in Patent Document 2 in which the leading end and the trailing end of the material to be heated are shielded by the metal layer by the research and test conducted by the present applicant, depending on the shape and type of the material to be heated, Exothermic runaway occurs on the outer peripheral edge of the heating material (the outer peripheral edge when the heated material is viewed in the direction where the electrodes face each other), and quality degradation such as melting of the cream may occur in the part where the thermal runaway occurs. I understood.

  Further, in the method described in Patent Document 2 in which only the front end portion and the rear end portion of the heated material are shielded with the metal layer, the bottom portion of the heated material is covered with the heated material covered with the metal layer. Since it is exposed to the outside, there is a problem that foreign matter may be mixed in, and there is a problem in handling of the heating package.

  Therefore, the present invention solves these problems, can heat the material to be heated in a short time while avoiding the occurrence of uneven heating, and improves the handling of the heating package. An object is to provide a heating package and a package.

The heating package of the present invention is a heating package that is disposed between the first electrode and the second electrode that are opposed to each other and heated by high-frequency dielectric heating, and the heating package includes a material to be heated, A package that wraps the material to be heated, and the material to be heated includes a first facing surface disposed to face the first electrode, and a second facing surface disposed to face the second electrode. And the package includes a first metal layer disposed on the first facing surface, a second metal layer disposed on the second facing surface, the first metal layer, and the second metal layer. A conductive portion for conducting the metal layer, and the first metal layer is formed inside a first metal outer peripheral edge covering portion that covers an outer peripheral edge of the first facing surface, and an inner side of the first metal outer peripheral edge covering portion. By having the first metal opening formed, the above-mentioned problem is solved.
The packaging body of the present invention is a packaging body that is disposed between the first electrode and the second electrode that are opposed to each other and wraps a material to be heated that is heated by high-frequency dielectric heating. A first metal layer disposed on a first opposed surface of the heated material disposed opposite to the first electrode; and a second opposed surface of the heated material disposed opposed to the second electrode. A second metal layer disposed; and a conductive portion that conducts the first metal layer and the second metal layer, wherein the first metal layer covers an outer peripheral edge of the first facing surface. The object is solved by having an outer peripheral edge covering portion and a first metal opening formed inside the first metal outer peripheral edge covering portion.

  According to the first, fourth, and tenth aspects of the present invention, the first metal layer disposed on the first facing surface of the heated material includes the first metal outer periphery covering portion that covers the outer periphery of the first facing surface; The first metal outer periphery covering portion shields the outer periphery of the material to be heated, which tends to concentrate an electric field, by having the first metal opening formed inside the first metal outer periphery covering portion. This makes it possible to achieve uniform heating of the heated material, avoiding deterioration of the quality of the heated material, and heating the heated material by avoiding electric field concentration on the outer periphery of the heated material. Since it is possible to increase the output of dielectric heating without causing unevenness, heating of the material to be heated can be realized in a short time.

According to the second aspect of the present invention, a part of the first metal layer and a part of the second metal layer are adjacent to each other with at least one of the first insulating layer or the second insulating layer interposed therebetween. By arranging the conductive portions, the conductive portions are formed between the metal layers without bringing the metal layers into direct contact with each other, so that the degree of freedom in designing the package can be improved.
According to the third aspect of the present invention, the package is formed on both the first insulating layer formed on both the inner surface and the outer surface of the first metal layer, and on both the inner surface and the outer surface of the second metal layer. By having the formed second insulating layer, the metal layer can be prevented from coming into direct contact with the heated material, and the insulating layer can insulate the metal layer from the electrode. There is no need to provide an additional insulating member.
According to the fifth aspect of the present invention, the second insulating layer disposed on the second facing surface of the material to be heated is formed so as to cover the second facing surface entirely. A housing for housing the material to be heated at the time of distribution or storage, such as prevention, or the heating package can be placed on a desk or the like with the second facing surface side of the material to be heated facing down As a package, it can function.
According to the invention of claim 6, the first insulating layer formed on the first facing surface of the material to be heated has the first insulating layer opening formed inside the first insulating layer outer periphery covering portion. Since it is possible to visually recognize the heated material from the outside through the first metal opening of the first metal layer and the first insulating layer opening of the first insulating layer, the kind of the heated material And the status can be easily confirmed.
According to the seventh aspect of the present invention, the first insulating layer disposed on the first facing surface of the material to be heated is formed so as to cover the first facing surface entirely. The handling property of the heating package can be improved, for example, by preventing the heating package from being placed on a desk or the like with the first facing surface side of the material to be heated facing downward.
According to the eighth aspect of the present invention, the packaging body includes the cover member formed separately from the packaging member having the first metal layer and the second metal layer. Since the packaging function can also be shared by the cover member, the design flexibility of the packaging member can be improved, for example, by designing the packaging member in a form that can be easily removed from the heated material. it can.
According to the ninth aspect of the present invention, the packaging body includes a first insulating layer disposed on the first facing surface, a second insulating layer disposed on the second facing surface, and the two opposed materials to be heated. By having two side surface insulating layers arranged on one side surface, the package can be configured as a box having a fixed shape.

Explanatory drawing which shows the usage condition of the package for a heating which concerns on 1st Embodiment. The perspective view which shows the package for a heating of 1st Embodiment. The perspective view which shows the to-be-heated material of 1st Embodiment. The expanded view and sectional drawing which show the package of 1st Embodiment. The expanded view and sectional drawing which show the package of the 1st modification. The expanded view and sectional drawing which show the package of the 2nd modification. The perspective view which shows the package for a heating of 2nd Embodiment. The perspective view which shows the to-be-heated material of 2nd Embodiment. The expanded view and sectional drawing which show the package body of 2nd Embodiment. The perspective view which shows the package for a heating of 3rd Embodiment. The expanded view and sectional drawing which show the packaging member of the package of 3rd Embodiment. Explanatory drawing which shows the usage condition of the heating package which concerns on 4th Embodiment. Sectional drawing which shows the usage condition of the package for a heating which concerns on 4th Embodiment. The fragmentary sectional view which shows the usage condition of the package for a heating which concerns on the modification of 4th Embodiment. Explanatory drawing which shows the experimental result of the 1st experiment example of this invention, and a comparative example. Explanatory drawing which shows the experimental result of the 2nd experiment example and comparative example of this invention.

  Below, the heating package 10 which concerns on 1st Embodiment of this invention is demonstrated based on drawing.

  First, as shown in FIG. 1, the heating package 10 is disposed between the first electrode 60 and the second electrode 61 that are opposed to each other, and is heated by high-frequency dielectric heating. The package 30 is configured to wrap the material 20 to be heated. The first electrode 60 and the second electrode 61 are connected to a high frequency power source 62, and the heating package 10 is placed on the second electrode 61 with an insulating mount 70 interposed therebetween.

  The material to be heated 20 is a hexahedral frozen shortcake as shown in FIGS. 1 to 3, and is opposed to the first opposing surface 21 disposed opposite to the first electrode 60 and the second electrode 61. A second opposing surface 22 and four side surfaces 23.

  The package 30 has metal layers 50 to 52 attached to the inner side surfaces of the insulating layers 41 to 45 made of an insulating sheet such as paper by vapor deposition, and a synthetic material such as PP (polypropylene) on the inner side surfaces of the metal layers 50 to 52. It is formed from a laminate material in which insulating layers 41 to 45 made of resin are formed.

As shown in FIG. 2 and FIG. 4, the insulating layers 41 to 45 can be assembled in a box shape, and the first insulating layer 41 disposed outside the first opposing surface 21 and the second opposing surface 22. A second insulating layer 42 disposed outside the side surface, a side surface insulating layer 43 disposed outside the side surface 23 of the heated material 20, a first side surface flap 44 connected to the first insulating layer 41, The second side flap 45 is connected to the two insulating layers 42.
The 1st insulating layer 41, the 2nd insulating layer 42, the side surface insulating layer 43, the 1st side surface flap 44, and the 2nd side surface flap 45 are each formed in the rectangular shape.

As shown in FIGS. 2 and 4, the side insulating layer 43 connects one side of the first insulating layer 41 and one side of the second insulating layer 42.
The first side flap 44 is connected to a side opposite to one side of the first insulating layer 41 provided with the side insulating layer 43 via a broken line portion, and the heated material 20 on which the side insulating layer 43 is disposed. It is arranged on the side surface 23 on the opposite side of the side surface 23.
The second side flap 45 is connected to a side opposite to one side of the second insulating layer 42 provided with the side insulating layer 43 via a broken line portion, and the heated material 20 on which the side insulating layer 43 is disposed. It is arranged on the side surface 23 on the opposite side of the side surface 23.
The first side surface flap 44 and the second side surface flap 45 are formed so as to be connectable to each other. Specifically, as shown in FIG. 4, the first side surface flap 44 is formed with an insertion piece 44 a, and the second side surface flap 44. The side flap 45 is formed with a slit 45 a into which the insertion piece 44 a of the first side flap 44 is inserted. As described above, the first side surface flap 44 and the second side surface flap 45 cooperate to form the side surface insulating layer 43.

As shown in FIGS. 1 to 4, the metal layers 50 to 52 include a first metal layer 50 disposed outside the first facing surface 21 and a second metal layer disposed outside the second facing surface 22. 51.
Further, the metal layer formed between the side surface insulating layers 43 functions as a conduction part 52 that conducts the first metal layer 50 and the second metal layer 51.

As shown in FIGS. 1, 2, and 4, an opening is formed in the center of each first insulating layer 41, and each first insulating layer 41 has an outer peripheral edge of the first facing surface 21. A first insulating layer outer peripheral edge covering portion 41a to be covered and a first insulating layer opening 41b formed inside the first insulating layer outer peripheral edge covering portion 41a are provided.
In addition, in accordance with the above, an opening is formed in the central portion of the first metal layer 50 as shown in FIGS. 1, 2, and 4, and the first metal layer 50 has a first facing surface. The first metal outer peripheral edge covering portion 50a covering the outer peripheral edge 21 and the first metal opening 50b formed inside the first metal outer peripheral edge covering portion 50a.

  In the present embodiment, as shown in FIG. 4, the first insulating layer openings 41b are formed in the first insulating layers 41. However, as in the first modification shown in FIG. The first insulating layer opening 41b may not be formed in the insulating layer 41.

Further, as shown in FIGS. 1, 2, and 4, the paper-made second insulating layer 42 is not formed with an opening, and the paper-made second insulating layer 42 has the second facing surface 22. Is formed so as to cover the entire surface.
Further, as shown in FIGS. 1, 2, and 4, an opening is formed in the central portion of the second metal layer 51 by removing the deposited metal layer. The second metal outer peripheral edge covering portion 51a covering the outer peripheral edge of the second facing surface 22 and the second metal opening 51b formed inside the second metal outer peripheral edge covering portion 51a.
In addition, along with the removal of the metal layer, the second insulating layer 42 made of PP includes a second insulating layer outer periphery covering portion 42 a that covers the outer periphery of the second facing surface 22, and a second insulating layer outer periphery covering portion. A second insulating layer opening 42b formed inside 42a is formed.

In the present embodiment, as shown in FIG. 4, the first metal opening 50b or the second metal opening 51b is formed in both the first metal layer 50 and the second metal layer 51, but in FIG. The second metal opening 51b may not be formed in the second metal layer 51 as in the second modification shown.
In the present embodiment, as shown in FIG. 4, no opening is formed in the second insulating layer 42 made of paper, but an opening may be formed in the second insulating layer 42 made of paper. .

  Next, the heating package 10 according to the second embodiment of the present invention will be described with reference to FIGS. Here, in the second embodiment, the partial configuration is completely the same as that of the first embodiment described above, and therefore, the description of the configuration other than the difference is omitted.

  First, in 1st Embodiment mentioned above, although demonstrated as what packs the one to-be-heated material 20 with the package 30, in 2nd Embodiment, as shown to FIG. 7 and FIG. (Four) heated materials 20 are packaged. Specifically, four heated materials 20 arranged adjacent to each other in the horizontal and vertical directions 2 × 2 are packaged by the package 30.

Corresponding to the fact that there are a plurality of materials to be heated 20 to be packaged by the packaging body 30, a plurality of first metal openings 50 b are formed in the first metal layer 50, and the first metal outer periphery covering portion 50 a. Is formed so as to cover the outer peripheral edge of each material to be heated 20 with a central portion of each material 20 to be heated.
Similarly, a plurality of second metal openings 51 b are formed in the second metal layer 51, and the second metal outer peripheral edge covering portion 51 a opens the central portion of each heated material 20 and each heated material. The outer peripheral edge of 20 is formed.
In addition, as described above, with the formation of the plurality of first metal openings 50b in the first metal layer 50, each of the first insulation layers 41 is formed with a plurality of first insulation layer openings 41b. ing.
In addition, as described above, with the formation of the plurality of second metal openings 51b in the second metal layer 51, the second insulation layer 42 made of PP has the plurality of second insulation layer openings 42b. Is formed.

  In the embodiment described above, the four heated materials 20 are packaged by the packaging body 30, but the quantity and arrangement of the heated materials 20 packaged by the packaging body 30 may be any.

  Next, a heating package 10 according to a third embodiment of the present invention will be described with reference to FIGS. Here, in the third embodiment, the partial configuration is completely the same as that of the first embodiment described above, and therefore, the description of the configuration other than the difference is omitted.

  First, in 1st Embodiment mentioned above, although the package 30 demonstrated as what was comprised from the single member, in 3rd Embodiment, the package 30 is heated as shown in FIG. The packaging member 31 that wraps the material 20 and the packaging member 31 are formed separately from each other and are composed of a plurality (two) of cover members 32 that are covered with the packaging member 31.

  The packaging member 31 is composed of insulating layers 41 to 43 and metal layers 50 to 52.

As shown in FIG. 10 and FIG. 11, the insulating layers 41 to 43 are connected to the second insulating layer 42 disposed outside the second facing surface 22, and to each side of the second insulating layer 42 via a broken line portion. It has four side insulating layers 43 provided, and four flaps 41 c connected to one side of each side insulating layer 43.
The second insulating layer 42, the side insulating layer 43, and the flap 41c are each formed in a rectangular shape.

As shown in FIG. 10 and FIG. 11, each of the flaps 41 c is connected to a side opposite to one side of the side insulating layer 43 provided with the second insulating layer 42 via a broken line portion, and the heated material 20. The first opposed surface 21 is disposed. Thereby, in this embodiment, the 1st insulating layer 41 which has the 1st insulating layer outer periphery cover part 41a and the 1st insulating layer opening part 41b is comprised from the four flaps 41c.
Further, the metal layer formed on each flap 41c constitutes the first metal layer 50 having the first metal outer peripheral edge covering portion 50a and the first metal opening portion 50b.

Further, as shown in FIGS. 10 and 11, the paper-made second insulating layer 42 is not formed with an opening, and the paper-made second insulating layer 42 covers the entire second opposing surface 22. It is formed so as to cover.
The second metal layer 51 includes a second metal outer periphery covering portion 51a that covers the outer periphery of the second facing surface 22, and a second metal opening 51b formed inside the second metal outer periphery covering portion 51a. have.
Further, the second insulating layer 42 made of PP has a second insulating layer outer peripheral edge covering portion 42a covering the outer peripheral edge of the second facing surface 22 and a second insulating layer outer peripheral edge covering portion 42a formed inside the second insulating layer outer peripheral edge covering portion 42a. Two insulating layer openings 42b are formed.

  In addition, the metal layer formed on each side insulating layer 43 functions as a conduction portion 52 that conducts the first metal layer 50 and the second metal layer 51.

As shown in FIG. 10, the cover member 32 is formed in a rectangular tube shape from an insulating sheet such as paper, and is formed so as to accommodate the heated material 20 wrapped by the packaging member 31 by being inserted from the side. ing.
In addition, the specific aspect of the cover member 32 is not limited to the above. For example, the cover member 32 is formed in a hexahedron shape with one surface open, and is covered with the material to be heated 20 wrapped by the packaging member 31 and accommodated from above. It can be anything.

  Next, a heating package 10 according to a fourth embodiment of the present invention will be described with reference to FIGS. Here, in the fourth embodiment, the partial configuration is completely the same as that of the first embodiment described above, and therefore, the description of the configuration other than the difference is omitted.

First, in the fourth embodiment, as shown in FIG. 13, the first insulating layer 41 is formed on the inner surface and the outer surface of the first metal layer 50, and the inner surface and the outer surface of the second metal layer 51 are formed. A second insulating layer 42 is formed on the side surface.
The first insulating layer 41 on the inner surface of the first metal layer 50 and the second insulating layer 42 on the inner surface of the second metal layer 51 are made of PP, and the first insulating layer 41 on the outer surface of the first metal layer 50 The first insulating layer 41 and the second insulating layer 42 on the outer surface of the second metal layer 51 are made of PET (polyethylene terephthalate).

Then, as shown in FIGS. 12 and 13, the outer edge portion of the first insulating layer 41 formed on the inner surface of the first metal layer 50 and the second insulating layer formed on the inner surface of the second metal layer 51. The package 30 is configured in a pouch shape by thermally bonding the outer edge portion of 42 with the heat bonding portion 46.
In this embodiment, the insulating layers 41 and 42 are bonded by heating, but the insulating layers 41 and 42 may be bonded by an adhesive.

In the fourth embodiment, as shown in FIG. 12 and FIG. 13, the first metal layer 50 includes the first metal outer peripheral edge covering portion 50 a and the first metal opening 50 b, and each first insulating layer 41. However, it has the 1st insulating layer outer periphery covering part 41a and the 1st insulating layer opening part 41b.
The second metal layer 51 has a second metal outer peripheral edge covering portion 51 a and a second metal opening 51 b, and each second insulating layer 42 is outside the second insulating layer that covers the outer peripheral edge of the heated material 20. A peripheral cover 42a and a second insulating layer opening 42b are provided.

In the fourth embodiment, as shown in FIG. 13, the outer edge portion of the first metal layer 50 and the outer edge portion of the second metal layer 51 interpose the first insulating layer 41 and the second insulating layer 42 between each other. Are arranged adjacent to each other. As a result, the outer edge portion of the first metal layer 50 and the outer edge portion of the second metal layer 51 are electrically connected (with low impedance) through the thin insulating layers 41 and 42 of about 70 μm, respectively. The outer edge portions of the layers 50 and 51 function as the conduction portion 52.
In the present embodiment, the first insulating layer 41 and the second insulating layer 42 are interposed between the conductive metal layers 51 and 52, but the first insulating layer 41 and the conductive metal layers 51 and 52 are interposed between the first insulating layer 41 and the conductive metal layers 51 and 52. Only one of the layer 41 or the second insulating layer 42 may be interposed.

  Next, a modification of the fourth embodiment will be described below based on FIG.

In the fourth embodiment shown in FIG. 13, the outer edge portion of the first insulating layer 41 formed on the inner surface of the first metal layer 50 and the second insulating layer 42 formed on the inner surface of the second metal layer 51. Although the outer edge portion is thermally bonded, in the modification shown in FIG. 14, the outer edge portion of the first insulating layer 41 formed on the inner surface of the first metal layer 50 and the outer surface of the second metal layer 51 are formed. Further, the outer edge portion of the second insulating layer 42 is thermally bonded.
On the contrary, the outer edge portion of the first insulating layer 41 formed on the outer surface of the first metal layer 50 and the outer edge portion of the second insulating layer 42 formed on the inner surface of the second metal layer 51 are heated. It may be glued.

  Below, the 1st experiment example of this invention is demonstrated based on FIG.

The first experimental example was performed under the following conditions.
Heated material 20: Frozen strawberry shortcake (length 120mm, width 70mm, height 34mm)
Preheating temperature of the material 20 to be heated: -15 ° C
First electrode 60: Flat plate electrode Second electrode 61: Flat plate electrode High frequency dielectric heating condition Frequency: 13.56 MHz
Output: 230W
Heating time: 8 minutes

Moreover, about the package 30, the package 30 of 1st Embodiment mentioned above was used. Specific conditions of the package 30 are as follows.
Insulating layer on the outer side: paper (thickness 0.24 mm)
Inner side insulation layer: polyethylene (thickness 17μm)
1st metal layer 50, 2nd metal layer 51, conduction | electrical_connection part 52: Aluminum (thickness 7 micrometers)
Width of first metal outer periphery covering portion 50a and second metal outer periphery covering portion 51a: 10 mm

Moreover, about the comparative example, only the cover range of the to-be-heated material 20 by the 1st metal layer 50 (2nd metal layer 51) is different from the 1st experiment example mentioned above.
That is, in the first experimental example, as shown by reference numeral C <b> 1 in FIG. 15, the first opposing surface 21 (second opposing surface 22) of the heated material 20 is formed by the first metal layer 50 (second metal layer 51). In contrast, in the comparative example, the first opposing surface 21 of the material to be heated 20 is covered by the first metal layer 50 (second metal layer 51) in the comparative example, as shown by reference numeral C2 in FIG. Only a part (left and right ends) of the outer peripheral edge of (second facing surface 22) was covered.

  As a result of conducting the experiment under the above conditions, it was confirmed that the heated material 20 was thawed in about 8 minutes in the first experimental example. Moreover, as shown in FIG. 15, it was confirmed that the temperature distribution of the cross section of the to-be-heated material 20 after heating is uniform, and quality deterioration, such as cream melting, does not occur.

  On the other hand, in the comparative example, as shown by the symbol M in FIG. 15, the temperature of the portion of the outer peripheral edge of the first facing surface 21 of the heated material 20 that is not covered by the first metal layer 50 is increased, and the cream It was confirmed that melting occurred.

  Next, a second experimental example of the present invention will be described with reference to FIG.

The second experimental example was performed under the following conditions.
Material to be heated 20: fillet (size: about 110 mm × 100 mm × 20 mm)
Temperature before heating of the material 20 to be heated: −40 ° C.
First electrode 60: Pin electrode Second electrode 61: Flat plate electrode High frequency dielectric heating condition Frequency: 13.56 MHz
Output: 500W
Heating time: 10 minutes

Moreover, about the package 30, the package 30 of 4th Embodiment mentioned above was used. Specific conditions of the package 30 are as follows.
First insulating layer 41 on the outer surface side: PET (thickness 12 μm)
First insulating layer 41 on the inner side surface: PP (thickness 70 μm)
Second insulating layer 42 on the outer side surface: PET (thickness 12 μm)
Second insulating layer 42 on the inner side: PP (thickness 70 μm)
First metal layer 50, second metal layer 51: aluminum (thickness 20 μm)
Width of first metal outer periphery covering portion 50a and second metal outer periphery covering portion 51a: 20 mm

  Moreover, about the comparative example, the to-be-heated material 20 was dielectrically heated, without covering the to-be-heated material 20 with the package 30 grade | etc.,.

  As a result of conducting the experiment under the above conditions, in the second experimental example, as shown in FIG. 16, overheating of the skin and blood at the positions corresponding to the metal outer peripheral edge covering portions 50a and 51a is suppressed, and the metal openings It was found that the hard-to-melt white portions at the positions corresponding to the parts 50b and 51b were thawed, and as a result, the maximum temperature: 16.5 ° C. and the minimum temperature of 3.3 ° C. were reduced.

  On the other hand, in the comparative example, as shown in FIG. 16, the skin and bloody part are overheated, and the white meat is not sufficiently thawed. As a result, the maximum temperature is 29.7 ° C., and the minimum temperature is −0.3 ° C. It was found that the temperature difference became large.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to the said embodiment, A various design change can be performed without deviating from this invention described in the claim. Is possible.

For example, the heating package may be configured by arbitrarily combining the configurations of the above-described embodiments and modifications.
In the above-described embodiment, the heated material has been described as a hexahedral frozen shortcake or the like. However, the specific shape of the heated material may be anything, and the type of the heated material Anything such as frozen tuna and frozen meat may be used.
In the above-described embodiment, the packaging body is described as being formed from a laminate material in which a metal layer is attached to an insulating layer. However, the metal layer formed separately from the insulating layer is used as the insulating layer. You may arrange | position to an inner surface or an outer surface. Moreover, you may comprise a package only from a metal layer, without providing an insulating layer.
In the above-described embodiment, the description has been given on the assumption that the insulating layer is formed on both the inner surface and the outer surface of each metal layer. However, the insulating layer is formed on one of the inner surface or the outer surface of each metal layer. May be.
In the above-described embodiment, the metal layer is attached to the surface of the insulating insulating layer by vapor deposition. However, any method for attaching the metal layer to the surface of the insulating layer may be used.
Moreover, in embodiment mentioned above, although demonstrated as what packages a to-be-heated material with a package so that a clearance gap may not arise between a package and a to-be-heated material, the packaging aspect of the to-be-heated material by a package is For example, a gap may be formed between the first metal layer and the first facing surface of the heated material in a state where the heated material is packaged by the package.
In the above-described embodiment, the insulating layer is described as being made of paper or synthetic resin. However, the specific material of the insulating portion may be anything as long as it has insulating properties.
In addition, the specific type of metal forming the first metal layer, the second metal layer, and the conductive portion may be any material such as aluminum or copper as long as it has conductivity.

DESCRIPTION OF SYMBOLS 10 ... Heating package 20 ... To-be-heated material 21 ... 1st opposing surface 22 ... 2nd opposing surface 23 ... Side 30 ... Packaging 31 ... Packaging member 32 ... Cover member 41 ... 1st insulating layer 41a ... 1st insulating layer outer periphery covering part 41b ... 1st insulating layer opening part 41c ... Flap 42 ... 2nd insulating layer 42a ... 2nd insulating layer outer periphery covering part 42b ... 2nd insulating layer opening part 43 ... Side surface insulating layer 44 ... 1st side surface flap 44a ... Insertion piece 45 ... 2nd side surface flap 45a- .. Slit 46... Thermal bonding portion 50... First metal layer 50a... Second metal outer peripheral edge covering portion 51b ... second metal opening 2 ... conduction portion 60 ... first electrode 61 ... second electrode 62 ... high frequency power supply 70 ... mount

Claims (10)

A heating package disposed between the first and second electrodes disposed opposite each other and heated by high-frequency dielectric heating;
The heating package includes a material to be heated and a package that wraps the material to be heated.
The heated material has a first facing surface disposed to face the first electrode, and a second facing surface disposed to face the second electrode,
The package includes a first metal layer disposed on the first facing surface, a second metal layer disposed on the second facing surface, and a conduction that electrically connects the first metal layer and the second metal layer. And
The first metal layer includes a first metal outer periphery covering portion that covers an outer periphery of the first facing surface, and a first metal opening formed inside the first metal outer periphery covering portion. A heating package characterized by the above. The package includes a first insulating layer formed on at least one of an inner surface and an outer surface of the first metal layer, and a second insulation formed on at least one of the inner surface and the outer surface of the second metal layer. Has a layer,
By disposing a part of the first metal layer and a part of the second metal layer adjacent to each other with at least one of the first insulating layer or the second insulating layer interposed therebetween, The heating package according to claim 1, wherein the conductive portion is formed.   The package includes a first insulating layer formed on both an inner surface and an outer surface of the first metal layer, and a second insulating layer formed on both the inner surface and the outer surface of the second metal layer. The heating package according to claim 1, wherein the heating package is provided.   The second metal layer includes a second metal outer periphery covering portion that covers an outer periphery of the second facing surface, and a second metal opening formed inside the second metal outer periphery covering portion. The heating package according to any one of claims 1 to 3, wherein the heating package is provided. The package has a second insulating layer formed on at least one of an inner surface or an outer surface of the second metal layer,
5. The heating package according to claim 1, wherein at least one of the second insulating layers is formed so as to entirely cover the second facing surface. 6. The package has a first insulating layer formed on at least one of an inner surface or an outer surface of the first metal layer,
The first insulating layer includes a first insulating layer outer periphery covering portion that covers an outer periphery of the first facing surface, and a first insulating layer opening formed inside the first insulating layer outer periphery covering portion. The heating package according to claim 1, wherein the heating package is provided. The package has a first insulating layer formed on at least one of an inner surface or an outer surface of the first metal layer,
The heating package according to any one of claims 1 to 5, wherein at least one of the first insulating layers is formed so as to cover the first opposing surface entirely. The packaging body includes a packaging member that wraps the material to be heated, and a cover member that is formed separately from the packaging member and covers the packaging member,
The heating package according to any one of claims 1 to 7, wherein the packaging member includes the first metal layer, the second metal layer, and the conductive portion. The packaging body is disposed on two opposing side surfaces of the heated material, the first insulating layer disposed on the first facing surface, the second insulating layer disposed on the second facing surface, and the first surface. 1 insulating layer and two side insulating layers connecting the second insulating layer,
The first metal layer is formed on an inner surface or an outer surface of the first insulating layer;
The second metal layer is formed on an inner surface or an outer surface of the second insulating layer;
The said conduction | electrical_connection part is comprised from the metal layer formed in at least one inner surface or the outer surface of the said two side surface insulating layers, The Claim 1 thru | or 8 characterized by the above-mentioned. Heating package. A package that wraps between a first electrode and a second electrode that are arranged opposite to each other and wraps a material to be heated that is heated by high-frequency dielectric heating,
The package includes a first metal layer disposed on a first facing surface of the heated material disposed to face the first electrode, and the heated material disposed to face the second electrode. A second metal layer disposed on the second facing surface, and a conductive portion for conducting the first metal layer and the second metal layer,
The first metal layer includes a first metal outer periphery covering portion that covers an outer periphery of the first facing surface, and a first metal opening formed inside the first metal outer periphery covering portion. A packaging body characterized by being.