JP2006187494A - Heat insulation apparatus - Google Patents

Heat insulation apparatus Download PDF

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JP2006187494A
JP2006187494A JP2005002192A JP2005002192A JP2006187494A JP 2006187494 A JP2006187494 A JP 2006187494A JP 2005002192 A JP2005002192 A JP 2005002192A JP 2005002192 A JP2005002192 A JP 2005002192A JP 2006187494 A JP2006187494 A JP 2006187494A
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heat insulating
insulating material
container
heat
electromagnetic induction
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Toyoaki Takeshita
豊晃 竹下
Yoshiyuki Okabe
良行 岡部
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulation apparatus greatly reducing heat leakage from the bottom of a container and exhibiting a high energy saving effect. <P>SOLUTION: The lower end part of a heat insulating material 11 positioned in the outer circumference of the container 3 is disposed in a part lower than a bottom heat insulating material 14 positioned in the bottom of the container 3. This constitution can greatly reduce the heat leakage from the lower part of the container 3 in the bottom direction and in the side direction to improve the high energy saving effect. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、断熱材を搭載した、炊飯器、保温調理器、給湯器あるいは湯沸かし器などの省エネ型の断熱機器に関するものである。   The present invention relates to an energy-saving heat-insulating device such as a rice cooker, a heat-retaining cooker, a water heater or a water heater equipped with a heat insulating material.

従来、この種の断熱機器の内、電気湯沸かし器においては、容器の外側に断熱材を配置して、容器から漏洩する熱量を抑え、保温時の保温電力量を低減するものが知られている（例えば、特許文献１参照）。
特開平１１−２９０２１０号公報 Conventionally, in this type of heat insulating equipment, in an electric water heater, a heat insulating material is disposed outside the container to suppress the amount of heat leaking from the container and to reduce the amount of heat retained during heat insulation ( For example, see Patent Document 1).
Japanese Patent Laid-Open No. 11-290210

しかしながら、前記従来の構成では、断熱材は単に容器の外周を覆っているにすぎないために、容器の底部から熱が漏洩するという課題があった。   However, in the said conventional structure, since the heat insulating material only covered the outer periphery of the container, there existed a subject that heat leaked from the bottom part of the container.

本発明は、前記従来の課題を解決するもので、容器の底部からの熱漏洩を大幅に低減し、省エネ効果の高い断熱機器を提供することを目的とする。   This invention solves the said conventional subject, and it aims at providing the heat insulation apparatus with a high energy-saving effect which reduces the heat leak from the bottom part of a container significantly.

前記従来の課題を解決するために、本発明の断熱機器は、容器の外周部に位置する筒状の断熱材と、容器の外底部に位置する底断熱材とを備え、断熱材の下端部は底断熱材の外周とオーバーラップする下方位置まで配設したものである。   In order to solve the above-described conventional problems, the heat insulating device of the present invention includes a cylindrical heat insulating material positioned on the outer peripheral portion of the container and a bottom heat insulating material positioned on the outer bottom portion of the container, and a lower end portion of the heat insulating material. Is arranged to a lower position overlapping the outer periphery of the bottom heat insulating material.

これによって、底断熱材と断熱材の下端部で包囲し容器の底部からの熱漏洩を大幅に低減することができ、省エネ効果の高いものとすることができる。   Thus, the bottom heat insulating material and the lower end portion of the heat insulating material can be enclosed so that heat leakage from the bottom of the container can be greatly reduced, and the energy saving effect can be increased.

本発明の断熱機器は、容器の底部からの熱漏洩を大幅に低減し、省エネ効果の高いものとすることができる。   The heat insulation apparatus of the present invention can greatly reduce heat leakage from the bottom of the container, and can have a high energy saving effect.

第１の発明は、被収容物を収容する有底筒状の容器と、容器内の被収容物を加熱・保温する加熱手段と、容器の上方開口部を覆う蓋体と、容器の外周部に位置する筒状の断熱材と、容器の外底部に位置する底断熱材と、断熱材の外周に位置するボデーとを備え、断熱材の下端部は底断熱材の外周とオーバーラップする下方位置まで配設した断熱機器とすることにより、底断熱材と断熱材の下端部で包囲し容器の底部からの熱漏洩を大幅に低減することができ、省エネ効果の高いものとすることができる。   The first invention includes a bottomed cylindrical container that accommodates an object to be accommodated, a heating means that heats and retains the object to be accommodated in the container, a lid that covers an upper opening of the container, and an outer peripheral part of the container A cylindrical heat insulating material located at the bottom of the container, a bottom heat insulating material located at the outer bottom of the container, and a body located at the outer periphery of the heat insulating material, the lower end of the heat insulating material overlapping the outer periphery of the bottom heat insulating material By making the heat insulating device arranged up to the position, it can be surrounded by the bottom heat insulating material and the lower end of the heat insulating material, heat leakage from the bottom of the container can be greatly reduced, and the energy saving effect can be increased. .

第２の発明は、特に、第１の発明において、断熱材および底断熱材は真空断熱材であることにより、断熱材の下方開口部を非常に断熱性能の高い真空断熱材で覆うため、下方向への熱漏洩を大幅に低減し、省エネ効果の高いものとすることができる。   In the second invention, in particular, in the first invention, since the heat insulating material and the bottom heat insulating material are vacuum heat insulating materials, the lower opening of the heat insulating material is covered with a vacuum heat insulating material having a very high heat insulating performance. Heat leakage in the direction can be greatly reduced, and the energy saving effect can be increased.

第３の発明は、特に、第１または第２の発明において、断熱材と底断熱材の外周部との間に補助断熱材を配設したことにより、断熱材と底断熱材の隙間をシールし、容器底部を断熱材で密閉するように覆うため、容器下部から下方向への熱漏洩を大幅に低減し、さらに省エネ効果の高いものとすることができる。   In particular, in the first or second invention, the third invention seals the gap between the heat insulating material and the bottom heat insulating material by disposing the auxiliary heat insulating material between the heat insulating material and the outer peripheral portion of the bottom heat insulating material. And since it covers so that a container bottom part may be sealed with a heat insulating material, the heat leak from a container lower part to a downward direction can be reduced significantly, and also it can be set as a thing with a high energy-saving effect.

第４の発明は、特に、第１〜第３のいずれか１つの発明において、加熱手段は容器内部に配設された水中ヒーターであることにより、水中ヒーターから被収容物へ直接熱を伝達するため、加熱手段の熱効率を高くすることができ、容器の底部からの熱漏洩を大幅に低減し、さらに省エネ効果の高いものとすることができる。   In the fourth invention, in particular, in any one of the first to third inventions, the heating means is a submersible heater disposed inside the container, so that heat is directly transferred from the submersible heater to the object to be accommodated. Therefore, the thermal efficiency of the heating means can be increased, the heat leakage from the bottom of the container can be greatly reduced, and the energy saving effect can be further increased.

第５の発明は、特に、第１〜第３のいずれか１つの発明において、加熱手段は電磁誘導コイルを有し、その電磁誘導コイルは容器底部と底断熱材との間に配設し、磁性体のステンレスである容器底面を電磁誘導加熱することにより、加熱手段から容器底部へ熱を伝達するのではなく、容器底部が発熱するため、効率的に被収容物を加熱することができ、省エネ効果の高いものとすることができる。   In a fifth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the heating means includes an electromagnetic induction coil, and the electromagnetic induction coil is disposed between the container bottom and the bottom heat insulating material, By electromagnetically heating the bottom of the container, which is a stainless steel magnetic substance, heat is not transmitted from the heating means to the bottom of the container, but the bottom of the container generates heat. The energy saving effect can be high.

第６の発明は、特に、第１〜第３のいずれか１つの発明において、加熱手段は電磁誘導コイルを有し、容器は非磁性体のステンレスで構成し、容器内の底部に磁性体のステンレスからなる加熱板を配設し、加熱板を電磁誘導加熱することにより、電磁誘導コイルにより、非磁性体である容器は加熱されずに、容器内の底部に配設した磁性体のステンレスからなる加熱板が発熱するため、容器の底部からの熱漏洩が少なくなり、効率的に非収容物を加熱することができ、さらに省エネ効果を高いものとすることができる。   In a sixth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the heating means has an electromagnetic induction coil, the container is made of non-magnetic stainless steel, and the bottom of the container is made of a magnetic substance. By placing a heating plate made of stainless steel and heating the heating plate by electromagnetic induction, the non-magnetic container is not heated by the electromagnetic induction coil, but from the magnetic stainless steel disposed at the bottom of the container. Since the heating plate is heated, heat leakage from the bottom of the container is reduced, the non-contained items can be efficiently heated, and the energy saving effect can be further enhanced.

第７の発明は、特に、第６の発明において、容器を１００℃以上の耐熱性樹脂で構成したことにより、容器を安価で構成できるとともに、金属よりも熱伝導率が低く、容器外部への熱漏洩を低減することができ、さらに省エネ性能の高いものとすることができる。   In a seventh aspect of the invention, in particular, in the sixth aspect of the invention, since the container is made of a heat resistant resin of 100 ° C. or higher, the container can be constructed at a low cost, and has a lower thermal conductivity than that of the metal. Heat leakage can be reduced, and energy saving performance can be further improved.

第８の発明は、特に、第５〜第７のいずれか１つの発明において、電磁誘導コイルを底断熱材の下部に配設したことにより、容器の底部が断熱材で覆われるため、熱漏洩を低減することができ、さらに省エネ性能の高いものとすることができる。   In the eighth invention, in particular, in any one of the fifth to seventh inventions, the electromagnetic induction coil is disposed at the lower part of the bottom heat insulating material, so that the bottom of the container is covered with the heat insulating material. Can be reduced, and energy saving performance can be further improved.

第９の発明は、特に、第５〜第８のいずれか１つの発明において、断熱材の下端部は電磁誘導コイルよりも下方位置まで配設したことにより、電磁誘導コイルよりも下方まで断熱材で覆うことで、電磁誘導コイルが自己発熱する熱を容器底部に閉じ込め、外への熱漏洩を少なくし、さらに省エネ性能の高いものとすることができる。   According to a ninth invention, in particular, in any one of the fifth to eighth inventions, the lower end portion of the heat insulating material is disposed to a position below the electromagnetic induction coil, so that the heat insulating material is below the electromagnetic induction coil. By covering with, the heat generated by the electromagnetic induction coil can be confined in the bottom of the container, heat leakage to the outside can be reduced, and further energy saving performance can be achieved.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は、本発明の実施の形態１における断熱機器として電気湯沸かし器を例示したものである。 (Embodiment 1)
FIG. 1 illustrates an electric water heater as a heat insulating device in Embodiment 1 of the present invention.

図に示すように、この電気湯沸かし器は、被収容物（水）２を収容する有底筒状の容器３と、容器３内の被収容物２を加熱・保温する加熱手段６と、サーミスターなどの感温素子７と、感温素子７からの電気信号により容器３内の被収容物２の温度を制御する制御回路１０と、容器３の上方開口部を開閉自在に覆う蓋体８と、蓋体８に内蔵された発泡ポリプロピレンなどの蓋断熱材９と、容器３の外周部に位置する筒状の断熱材１１と、容器３の底部に位置する底断熱材１４と、断熱材１１の外周に位置するボデー１と、ボデー１上方に載置した上枠４とを備えている。   As shown in the figure, this electric water heater includes a bottomed cylindrical container 3 that accommodates an object (water) 2, a heating means 6 that heats and retains the object 2 in the container 3, and a thermistor. A control circuit 10 for controlling the temperature of the object 2 in the container 3 by an electric signal from the temperature sensing element 7, and a lid body 8 that covers the upper opening of the container 3 so as to be openable and closable. , A lid heat insulating material 9 such as foamed polypropylene built in the lid 8, a cylindrical heat insulating material 11 located on the outer periphery of the container 3, a bottom heat insulating material 14 located on the bottom of the container 3, and the heat insulating material 11. A body 1 located on the outer periphery of the body 1 and an upper frame 4 placed above the body 1 are provided.

そして、前記容器３はその開口周縁部が上枠４に装備され、容器３の開口周縁部と蓋体８間には、シリコーンゴムなど弾性体のパッキンが施されシール部５を構成しているものである。   The opening periphery of the container 3 is mounted on the upper frame 4, and an elastic packing such as silicone rubber is applied between the opening periphery of the container 3 and the lid 8 to form the seal portion 5. Is.

また、前記断熱材１１は、特に、その構成が限定されるものでないが、本実施の形態においては、断熱材１１を真空断熱材としているものである。これは、真空部１２を外袋１３で覆い、真空部１２はヒュームドシリカやパーライトなどの無機粉末、あるいはグラスウールなどの無機繊維、硬質ウレタンフォーム、発泡フェノール樹脂などの芯材が充填されており、外袋１３はガスバリア性を有した樹脂フィルム、樹脂・金属箔ラミネートフィルム（例えば、ナイロン・ＰＥＴ・アルミ箔・無延伸ポリプロピレン）などで構成され、内部を減圧して封止したものである。通常、真空断熱材である断熱材１１は平板状なるものなので、容器３への装着を可能とするため３本ローラーなどを用いて筒状に加工している。   Moreover, although the structure in particular is not limited, the said heat insulating material 11 uses the heat insulating material 11 as a vacuum heat insulating material in this Embodiment. This is because the vacuum part 12 is covered with an outer bag 13, and the vacuum part 12 is filled with an inorganic powder such as fumed silica or perlite, or an inorganic fiber such as glass wool, a hard urethane foam, or a core material such as a foamed phenol resin. The outer bag 13 is composed of a resin film having gas barrier properties, a resin / metal foil laminate film (for example, nylon / PET / aluminum foil / non-stretched polypropylene), etc., and is sealed by reducing the inside. Usually, since the heat insulating material 11 which is a vacuum heat insulating material has a flat plate shape, it is processed into a cylindrical shape using a three-roller or the like in order to enable mounting on the container 3.

ここで、断熱材１１は、その下端部を容器３の底部に位置する底断熱材１４よりも下方に配設しているものである。また、断熱材１１の上端部は、蓋体８の下面８ａよりの上方に配設している。さらに、断熱材１１の上端部は、蓋体８に内蔵された蓋断熱材９の下面よりも上方に配設しているものである。   Here, the heat insulating material 11 has its lower end disposed below the bottom heat insulating material 14 located at the bottom of the container 3. Further, the upper end portion of the heat insulating material 11 is disposed above the lower surface 8 a of the lid 8. Furthermore, the upper end portion of the heat insulating material 11 is disposed above the lower surface of the cover heat insulating material 9 built in the cover body 8.

なお、断熱材１１と底断熱材１４の外周部との間には補助断熱材１５が配設されている。ここでは、補助断熱材１５として発泡メラミンなどを用いているが、１００℃以上の耐熱性のある断熱材であれば何を用いてもよい。   An auxiliary heat insulating material 15 is disposed between the heat insulating material 11 and the outer peripheral portion of the bottom heat insulating material 14. Here, foamed melamine or the like is used as the auxiliary heat insulating material 15, but any heat insulating material having heat resistance of 100 ° C. or higher may be used.

次に、本実施の形態における断熱機器の作用を説明する。   Next, the effect | action of the heat insulation apparatus in this Embodiment is demonstrated.

例示した電気湯沸かし器は、一般によく知られているように、蓋体８を開放して容器３内に被収容物（水）２を入れ、被収容物２を加熱・保温し、ポンプの駆動により、湯を適宜吐出させることができるものである。   In the illustrated electric water heater, as is generally well known, the lid 8 is opened, the object (water) 2 is placed in the container 3, the object 2 is heated and kept warm, and the pump is driven. The hot water can be discharged appropriately.

ここで、本実施の形態においては、被収容物２の保温中、容器３の外周部に配置した断熱材１１と蓋体８内部の蓋断熱材９および容器３底部に位置する底断熱材１４により、容器３側面と、容器３上方および下方からの放熱を抑制できるものである。断熱材１１を真空断熱材（真空断熱材の熱伝導率＝０．００２〜０．００８Ｗ／ｍＫ）とすれば、保温時の電力量を大幅に低減でき経済性が高く、しかも製品重量を増加させることなく、組立て作業性・使い勝手を良化できるものである。   Here, in the present embodiment, the heat insulating material 11 disposed on the outer peripheral portion of the container 3, the lid heat insulating material 9 inside the lid body 8, and the bottom heat insulating material 14 located at the bottom of the container 3 during the heat insulation of the object 2. Thus, heat radiation from the side surface of the container 3 and from above and below the container 3 can be suppressed. If the heat insulating material 11 is a vacuum heat insulating material (thermal conductivity of the vacuum heat insulating material = 0.002 to 0.008 W / mK), the amount of electric power at the time of heat insulation can be greatly reduced, and the cost is high, and the product weight is increased. This makes it possible to improve the assembly workability and usability.

被収容物２は加熱手段６により一定温度に加熱・保温され、保温中は容器３の外周部に配置した筒状の真空断熱材（熱伝導率＝０．００３〜０．００８Ｗ／ｍＫ）である断熱材１１と、蓋体８内部の蓋断熱材９および容器３底部に位置する底断熱材１４により、容器３側面と、容器３上方および容器３底面からの放熱を抑制できるものである。   The to-be-contained object 2 is heated and kept at a constant temperature by the heating means 6, and a tubular vacuum heat insulating material (thermal conductivity = 0.003 to 0.008 W / mK) disposed on the outer periphery of the container 3 during the heat insulation. Heat radiation from the side surface of the container 3, the upper side of the container 3, and the bottom surface of the container 3 can be suppressed by a certain heat insulating material 11, the lid heat insulating material 9 inside the lid body 8, and the bottom heat insulating material 14 positioned at the bottom of the container 3.

高断熱効率なる真空断熱材である断熱材１１を筒状に加工し容器３の外周部に配置することで、保温時の電力量を大幅に低減でき経済性が高く、しかも製品重量を増加させることなく、組立て作業性・使い勝手を良化できるものである。   By processing the heat insulating material 11 which is a vacuum heat insulating material with high heat insulating efficiency into a cylindrical shape and arranging it on the outer peripheral portion of the container 3, the amount of electric power at the time of heat insulation can be greatly reduced, which is highly economical and increases the product weight. It is possible to improve the assembly workability and usability.

そして、断熱材１１の下端部は底断熱材１４よりも下方位置まで配設し、底断熱材１４の外周を覆っている。これにより、容器３の底部は加熱手段６からの熱で高温になり、熱が漏洩しやすいが、底断熱材１４で覆われ、さらに、断熱材１１で外周が覆われ、底部に熱を籠らせることになり、容器３の底部からの熱漏洩を低減することができ、従来の構成よりも少量の保温電力量で容器３内の被収容物２を保温することができる。   And the lower end part of the heat insulating material 11 is arrange | positioned to the lower position rather than the bottom heat insulating material 14, and has covered the outer periphery of the bottom heat insulating material 14. FIG. As a result, the bottom of the container 3 becomes hot due to the heat from the heating means 6, and the heat is likely to leak, but it is covered with the bottom heat insulating material 14, and the outer periphery is further covered with the heat insulating material 11. Therefore, heat leakage from the bottom of the container 3 can be reduced, and the object 2 in the container 3 can be kept warm with a smaller amount of heat retention than in the conventional configuration.

また、断熱材１１と底断熱材１４の間には補助断熱材１５が配設され、断熱材１１と底断熱材１４の外周部との間からの対流による熱漏洩を防ぎ、断熱効果を向上することができるが、断熱材１１と底断熱材１４の外周が密着するように配設されておれば、補助断熱材１５は無くてもよい。   Moreover, the auxiliary heat insulating material 15 is arrange | positioned between the heat insulating material 11 and the bottom heat insulating material 14, and the heat leak by the convection between the heat insulating material 11 and the outer peripheral part of the bottom heat insulating material 14 is prevented, and the heat insulation effect is improved. However, the auxiliary heat insulating material 15 may not be provided as long as the outer periphery of the heat insulating material 11 and the bottom heat insulating material 14 are arranged to be in close contact with each other.

なお、本実施の形態では、真空断熱材は外袋１３と芯材が充填された真空部１２で構成されるものとしたが、特にこれに限定するものではなく、内部を減圧して封止した２重層のステンレスなどで構成される断熱材であっても同様の効果を得ることができる。また、容器３の形状としては、円柱や多角柱形状をなし、断熱材１１は容器３に沿うような円柱または多角柱形状が好ましいが、特に限定するものではない。   In this embodiment, the vacuum heat insulating material is composed of the outer bag 13 and the vacuum part 12 filled with the core material. However, the present invention is not particularly limited to this, and the inside is decompressed and sealed. The same effect can be obtained even with a heat insulating material made of double-layered stainless steel or the like. In addition, the shape of the container 3 is preferably a columnar or polygonal column shape, and the heat insulating material 11 is preferably a columnar or polygonal column shape along the container 3, but is not particularly limited.

本実施の形態では、断熱機器として電気湯沸かし器を例示したが、特に、これに限定するものではなく、炊飯器や保温調理器、給湯器などであってもよく、また電気・ガス機器に限らず貯湯容器など保温を目的とする機器類であれば適用することが可能であり、保温効果の向上を図ることができるものである。   In the present embodiment, an electric water heater has been exemplified as the heat insulating device, but it is not particularly limited to this, and may be a rice cooker, a heat insulation cooker, a water heater, etc., and is not limited to an electric / gas device. It can be applied to any device such as a hot water storage container for the purpose of keeping heat, and the heat keeping effect can be improved.

（実施の形態２）
図２は、本発明の実施の形態２における断熱機器として電気湯沸かし器を例示したものである。実施の形態１と同一要素については同一符号を付して説明を省略する。 (Embodiment 2)
FIG. 2 illustrates an electric water heater as the heat insulating device in Embodiment 2 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

本実施の形態においては、加熱手段６を容器３内に配設した水中ヒーターとしたものである。水中ヒーターである加熱手段６はシーズヒーターやセラミックヒーターなどであるが、特に限定されるものではない。   In the present embodiment, the heating means 6 is a submersible heater disposed in the container 3. Although the heating means 6 which is an underwater heater is a sheathed heater, a ceramic heater, etc., it is not specifically limited.

これにより、加熱手段６で発生する熱は全て被収容物２に直接伝えられることで、加熱手段６の熱効率がほぼ１００パーセントとなり、容器３の底部を含めた外周が完全に断熱材１１と底断熱材１４で覆われるため、断熱効果を向上することができ、少量の保温電力量で容器３中の被収容物２を保温することができるものである。   As a result, all the heat generated by the heating means 6 is directly transmitted to the object 2 to be stored, so that the heat efficiency of the heating means 6 is almost 100%, and the outer periphery including the bottom of the container 3 is completely covered with the heat insulating material 11 and the bottom. Since it is covered with the heat insulating material 14, the heat insulating effect can be improved, and the object 2 in the container 3 can be kept warm with a small amount of heat retaining power.

（実施の形態３）
図３は、本発明の実施の形態３における断熱機器として電気湯沸かし器を例示したものである。実施の形態１と同一要素については同一符号を付して説明を省略する。 (Embodiment 3)
FIG. 3 illustrates an electric water heater as a heat insulating device in Embodiment 3 of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

本実施の形態においては、加熱手段６は容器３底部に配設した電磁誘導コイル１６としたもので、電磁誘導コイル１６に電流を流すことで、ＳＵＳ４３０などの磁性体のステンレスで構成された容器３の底部に電磁誘導により渦電流が発生し、容器３の底部のステンレスが発熱し、被収容物２を加熱するものである。   In the present embodiment, the heating means 6 is an electromagnetic induction coil 16 disposed at the bottom of the container 3, and a container made of a magnetic stainless steel such as SUS430 by passing an electric current through the electromagnetic induction coil 16. An eddy current is generated at the bottom of 3 by electromagnetic induction, the stainless steel at the bottom of the container 3 generates heat, and the object 2 is heated.

これにより、容器３そのものが発熱するため、被収容物２へ効率的に熱を伝えることができ、保温効率を向上させ、省エネ性能の優れた電気湯沸かし器とすることができる。   Thereby, since the container 3 itself generates heat, it is possible to efficiently transmit heat to the object 2 to be stored, to improve the heat retention efficiency, and to provide an electric water heater with excellent energy saving performance.

（実施の形態４）
図４は、本発明の実施の形態４における断熱機器として電気湯沸かし器を例示したものである。実施の形態１と同一要素については同一符号を付して説明を省略する。 (Embodiment 4)
FIG. 4 illustrates an electric water heater as the heat insulating device in the fourth embodiment of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

本実施の形態においては、容器３をＳＵＳ３０４などの非磁性体のステンレスで構成し、容器３内の底部にＳＵＳ４３０などの磁性体のステンレスで構成される加熱板１７を配設したものである。   In the present embodiment, the container 3 is made of nonmagnetic stainless steel such as SUS304, and a heating plate 17 made of magnetic stainless steel such as SUS430 is disposed at the bottom of the container 3.

これにより、電磁誘導コイル１６による電磁誘導で非磁性体である容器３は加熱されず、被収容物２内に配設された磁性体のステンレスである加熱板１７が加熱されるため、発生した熱量が全て被収容物２に伝えられ、保温効率を向上させることができ、さらに省エネ性能の優れた電気湯沸かし器とすることができる。   As a result, the container 3 that is a non-magnetic material is not heated by electromagnetic induction by the electromagnetic induction coil 16, and the heating plate 17 that is a magnetic material stainless steel disposed in the container 2 is heated. All the amount of heat is transmitted to the object to be accommodated 2, the heat retention efficiency can be improved, and an electric water heater with excellent energy saving performance can be obtained.

また、容器３は非磁性体で耐熱性のある材料なら何でも良く、１００℃以上の耐熱性能を有したポリプロピレンやシンジオタクチックポリスチレンなどの樹脂で構成することもできる。これにより、ステンレスで容器３を構成するよりも安価で重量を軽く構成することができるという効果がある。   The container 3 may be made of any material that is non-magnetic and heat resistant, and may be made of a resin such as polypropylene or syndiotactic polystyrene having a heat resistance of 100 ° C. or higher. Thereby, there exists an effect that it is cheap and can comprise a weight lightly rather than comprising the container 3 with stainless steel.

（実施の形態５）
図５は、本発明の実施の形態５における断熱機器として電気湯沸かし器を例示したものである。実施の形態１と同一要素については同一符号を付して説明を省略する。 (Embodiment 5)
FIG. 5 illustrates an electric water heater as the heat insulating device in the fifth embodiment of the present invention. The same elements as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

本実施の形態においては、容器３の底部に底断熱材１４を配設し、電磁誘導コイル１６を底断熱材１４の下部に配設したものである。   In the present embodiment, the bottom heat insulating material 14 is disposed at the bottom of the container 3, and the electromagnetic induction coil 16 is disposed below the bottom heat insulating material 14.

これにより、容器３の底部を底断熱材１４で覆うことができ、熱漏洩を低減することができ、さらに省エネ性能の高いものとすることができる。   Thereby, the bottom part of the container 3 can be covered with the bottom heat insulating material 14, heat leakage can be reduced, and energy saving performance can be further improved.

また、断熱材１１の下端部は電磁誘導コイル１６よりも下方位置まで配設することで、電磁誘導コイル１６に電流が流れた時に自己発熱する熱を容器３の底部に閉じ込め、外への熱漏洩を少なくし、さらに省エネ性能の高いものとすることができる。   Further, the lower end portion of the heat insulating material 11 is disposed to a position below the electromagnetic induction coil 16, so that the heat generated by the self-heating when current flows through the electromagnetic induction coil 16 is confined to the bottom of the container 3, and the heat to the outside. Leakage can be reduced, and energy saving performance can be improved.

以上のように、本発明にかかる断熱機器は、容器の底部からの熱漏洩を大幅に低減し、省エネ効果の高いものとすることができるので、炊飯器、保温調理器、給湯器あるいは湯沸かし器など保温を目的とする機器の断熱強化に適用できる。   As described above, the heat insulating device according to the present invention can greatly reduce heat leakage from the bottom of the container and have a high energy-saving effect, such as a rice cooker, a heat-retaining cooker, a water heater, or a water heater. It can be applied to heat insulation reinforcement of equipment for the purpose of heat insulation.

本発明の実施の形態１における断熱機器として電気湯沸かし器を示す縦断面図The longitudinal cross-sectional view which shows an electric water heater as the heat insulation apparatus in Embodiment 1 of this invention 本発明の実施の形態２における断熱機器として電気湯沸かし器を示す縦断面図The longitudinal cross-sectional view which shows an electric water heater as the heat insulation apparatus in Embodiment 2 of this invention 本発明の実施の形態３における断熱機器として電気湯沸かし器を示す縦断面図The longitudinal cross-sectional view which shows an electric water heater as the heat insulation apparatus in Embodiment 3 of this invention 本発明の実施の形態４における断熱機器として電気湯沸かし器を示す縦断面図The longitudinal cross-sectional view which shows an electric water heater as the heat insulation apparatus in Embodiment 4 of this invention 本発明の実施の形態５における断熱機器として電気湯沸かし器を示す縦断面図The longitudinal cross-sectional view which shows an electric water heater as the heat insulation apparatus in Embodiment 5 of this invention

符号の説明Explanation of symbols

１ ボデー
２ 被収容物
３ 容器
６ 加熱手段
８ 蓋体
１１ 断熱材
１４ 底断熱材
１５ 補助断熱材
１６ 電磁誘導コイル
１７ 加熱板 DESCRIPTION OF SYMBOLS 1 Body 2 Containment 3 Container 6 Heating means 8 Cover body 11 Heat insulating material 14 Bottom heat insulating material 15 Auxiliary heat insulating material 16 Electromagnetic induction coil 17 Heating plate

Claims (9)

被収容物を収容する有底筒状の容器と、容器内の被収容物を加熱・保温する加熱手段と、容器の上方開口部を覆う蓋体と、容器の外周部に位置する筒状の断熱材と、容器の外底部に位置する底断熱材と、断熱材の外周に位置するボデーとを備え、断熱材の下端部は底断熱材の外周とオーバーラップする下方位置まで配設した断熱機器。 A bottomed cylindrical container for storing the contents, a heating means for heating and keeping the contents in the container, a lid covering the upper opening of the container, and a cylindrical shape located on the outer periphery of the container Insulation provided with a heat insulating material, a bottom heat insulating material located on the outer bottom of the container, and a body located on the outer periphery of the heat insulating material, the lower end of the heat insulating material being arranged to a lower position overlapping the outer periphery of the bottom heat insulating material machine. 断熱材および底断熱材は真空断熱材である請求項１に記載の断熱機器。 The heat insulating device according to claim 1, wherein the heat insulating material and the bottom heat insulating material are vacuum heat insulating materials. 断熱材と底断熱材の外周部との間に補助断熱材を配設した請求項１または２に記載の断熱機器。 The heat insulation apparatus according to claim 1 or 2, wherein an auxiliary heat insulating material is disposed between the heat insulating material and the outer peripheral portion of the bottom heat insulating material. 加熱手段は容器内部に配設された水中ヒーターである請求項１〜３のいずれか１項に記載の断熱機器。 The heat insulating device according to any one of claims 1 to 3, wherein the heating means is a submersible heater disposed inside the container. 加熱手段は電磁誘導コイルを有し、その電磁誘導コイルは容器底部と底断熱材との間に配設し、磁性体のステンレスである容器底面を電磁誘導加熱する請求項１〜３のいずれか１項に記載の断熱機器。 The heating means has an electromagnetic induction coil, the electromagnetic induction coil is disposed between the bottom of the container and the bottom heat insulating material, and electromagnetically heats the bottom of the container, which is a magnetic stainless steel. The heat insulation apparatus of 1 item | term. 加熱手段は電磁誘導コイルを有し、容器は非磁性体のステンレスで構成し、容器内の底部に磁性体のステンレスからなる加熱板を配設し、加熱板を電磁誘導加熱する請求項１〜３のいずれか１項に記載の断熱機器。 The heating means has an electromagnetic induction coil, the container is made of non-magnetic stainless steel, a heating plate made of magnetic stainless steel is disposed at the bottom of the container, and the heating plate is heated by electromagnetic induction. The heat insulation apparatus according to any one of 3. 容器を１００℃以上の耐熱性樹脂で構成した請求項６に記載の断熱機器。 The heat insulation apparatus of Claim 6 which comprised the container with the heat resistant resin of 100 degreeC or more. 電磁誘導コイルを底断熱材の下部に配設した請求項５〜７のいずれか１項に記載の断熱機器。 The heat insulation apparatus of any one of Claims 5-7 which arrange | positioned the electromagnetic induction coil in the lower part of the bottom heat insulating material. 断熱材の下端部は電磁誘導コイルよりも下方位置まで配設した請求項５〜８のいずれか１項に記載の断熱機器。 The heat insulation apparatus according to any one of claims 5 to 8, wherein a lower end portion of the heat insulating material is disposed to a position below the electromagnetic induction coil.
JP2005002192A 2005-01-07 2005-01-07 Heat insulation apparatus Pending JP2006187494A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102648817A (en) * 2011-02-25 2012-08-29 陈兴钿 Multipurpose energy-saving pot

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102648817A (en) * 2011-02-25 2012-08-29 陈兴钿 Multipurpose energy-saving pot

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