JP3133051U

JP3133051U - Rubber heater

Info

Publication number: JP3133051U
Application number: JP2007002690U
Authority: JP
Inventors: 遠森
Original assignee: 株式会社日本シールボンド
Priority date: 2007-04-16
Filing date: 2007-04-16
Publication date: 2007-06-28
Anticipated expiration: 2017-04-16

Abstract

【課題】加熱対象物に接触する面のみ熱伝導性を高め、他の面は保温性を保持したラバーヒーターを提供する。
【解決手段】本考案のラバーヒーター（１１）は、発熱体（１）の一方の面のゴム層は断熱性ゴム層（５）であり、他方の面のゴム層は熱伝導性ゴム層（３）である。加熱対象物に接触する面を熱伝導性ゴム層（３）で形成し、加熱対象物には接触しない面のゴム層は断熱性ゴム層（５）で形成することにより、加熱対象物には熱が伝わりやすく、それ以外の面、例えば空気と接触する面は放熱しにくく、発熱体からの熱は効率よく加熱対象物に伝熱できる。
【選択図】図２Provided is a rubber heater in which only a surface in contact with an object to be heated is improved in thermal conductivity and the other surface is kept warm.
In a rubber heater (11) of the present invention, a rubber layer on one surface of a heating element (1) is a heat insulating rubber layer (5), and a rubber layer on the other surface is a heat conductive rubber layer ( 3). By forming the surface in contact with the object to be heated with the heat conductive rubber layer (3) and forming the rubber layer on the surface not in contact with the object to be heated with the heat insulating rubber layer (5), Heat is easily transmitted, and other surfaces, for example, surfaces that come into contact with air are difficult to dissipate, and heat from the heating element can be efficiently transferred to the object to be heated.
[Selection] Figure 2

Description

本考案は面状発熱体の一種であるラバーヒーターに関する。 The present invention relates to a rubber heater which is a kind of planar heating element.

ラバーヒーターは、電気抵抗式ヒーター、誘導発熱式ヒーターなどの発熱体（発熱エレメント）の表面を柔軟なゴム層で覆い、面状発熱体としたものである。その使い方は、例えば加熱対象物の保温、予熱、防湿、乾燥など様々な分野の加熱に使われる。例えば醸造タンクの加熱、熱硬化性樹脂の加熱処理、寒冷地の水道管の保温、生コンサイロのバルブ凍結防止用保温等様々な分野がある。 The rubber heater is a sheet heating element in which the surface of a heating element (heating element) such as an electric resistance heater or an induction heating heater is covered with a flexible rubber layer. The usage is used for heating in various fields such as heat retention, preheating, moisture proofing, and drying of an object to be heated. For example, there are various fields such as heating of a brewing tank, heat treatment of a thermosetting resin, heat insulation of a water pipe in a cold region, and heat insulation for preventing a valve freezing of a raw consilo.

従来、ラバーヒーターは発熱体（発熱エレメント）の表面を断熱性ゴム層で覆って作製していた。発熱体（発熱エレメント）と断熱性ゴム層との間には、補強層としてガラス繊維織物を配置したり、均熱性を高めるために金属メッシュ層を配置する提案がある（特許文献１）。 Conventionally, a rubber heater has been manufactured by covering the surface of a heating element (heating element) with a heat insulating rubber layer. There is a proposal that a glass fiber woven fabric is disposed as a reinforcing layer or a metal mesh layer is disposed between the heat generating element (heat generating element) and the heat insulating rubber layer (Patent Document 1).

しかし、発熱体（発熱エレメント）の表面を断熱性ゴム層で覆っているので、加熱対象物に熱が伝わりにくいという問題があった。
特開平９−６３７５５号公報 However, since the surface of the heating element (heating element) is covered with a heat insulating rubber layer, there is a problem that heat is not easily transmitted to the object to be heated.
JP-A-9-63755

本考案は、前記従来の問題を解決するため、加熱対象物に接触する面のみ熱伝導性を高め、他の面は保温性を保持したラバーヒーターを提供する。 In order to solve the above-described conventional problems, the present invention provides a rubber heater in which only the surface in contact with the object to be heated is improved in thermal conductivity and the other surface is kept warm.

本考案のラバーヒーターは、発熱体と、前記発熱体の両面をゴム層で覆ったラバーヒーターであって、前記ゴム層のうち、一方の面のゴム層は断熱性ゴム層であり、他方の面のゴム層は熱伝導性ゴム層であることを特徴とする。 The rubber heater of the present invention is a rubber heater in which both sides of the heating element and the heating element are covered with a rubber layer, and the rubber layer on one side of the rubber layer is a heat insulating rubber layer, and the other side The rubber layer on the surface is a heat conductive rubber layer.

本考案のラバーヒーターは、一方の面のゴム層は断熱性ゴム層であり、他方の面のゴム層は熱伝導性ゴム層とすることにより、加熱対象物に接触する面のみ熱伝導性を高め、他の面は保温性を保持したラバーヒーターとすることができる。すなわち、加熱対象物に接触する面を熱伝導性ゴム層で形成し、加熱対象物には接触しない面のゴム層は断熱性ゴム層で形成することにより、加熱対象物には熱が伝わりやすく、それ以外の面、例えば空気と接触する面は放熱しにくい。この結果、発熱体（発熱エレメント）からの熱は効率よく加熱対象物に伝熱できる。 In the rubber heater of the present invention, the rubber layer on one side is a heat insulating rubber layer, and the rubber layer on the other side is a heat conductive rubber layer, so that only the surface in contact with the object to be heated has thermal conductivity. The other side can be a rubber heater that retains heat retention. That is, the surface that contacts the object to be heated is formed of a heat conductive rubber layer, and the rubber layer that does not contact the object to be heated is formed of a heat insulating rubber layer, so that heat is easily transmitted to the object to be heated. Other surfaces, such as surfaces that come into contact with air, are difficult to dissipate heat. As a result, heat from the heating element (heating element) can be efficiently transferred to the object to be heated.

本考案のラバーヒーターは、発熱体（発熱エレメント）の両面はゴム層で覆い、加熱対象物に接触する面を熱伝導性ゴム層で形成し、加熱対象物に接触しない面のゴム層は断熱性ゴム層で形成する。 In the rubber heater of the present invention, both sides of the heating element (heating element) are covered with rubber layers, the surface that contacts the object to be heated is formed with a heat conductive rubber layer, and the rubber layer that does not contact the object to be heated is insulated. It is formed with a conductive rubber layer.

発熱体（発熱エレメント）は、電気抵抗式ヒーター、誘導発熱式ヒーターなどを使用できる。ヒーターの形状は、箔又は線等どのようなものであっても良い。 As the heating element (heating element), an electric resistance heater, an induction heating heater or the like can be used. The heater may have any shape such as foil or wire.

熱伝導性ゴム及び断熱性ゴムは、シリコーンゴム、フッ素ゴム、又はこれらのスポンジ体であることが好ましい。これらのゴムは耐熱性が高いからである。例えばシリコーンゴムの耐熱性は１８０℃であり、この温度までは使用できる。 The heat conductive rubber and the heat insulating rubber are preferably silicone rubber, fluoro rubber, or a sponge body thereof. This is because these rubbers have high heat resistance. For example, the heat resistance of silicone rubber is 180 ° C., and can be used up to this temperature.

熱伝導性ゴムは、ゴム成分１００重量部に対して、酸化アルミニウムなどの熱伝導性フィラーを１００〜３０００重量部と、白金系等の架橋触媒を配合し、シート状に成形し、加熱架橋することにより得られる。このようにして得られた熱伝導性ゴム層は、熱伝導率０．７Ｗ／ｍ・Ｋ以上の熱伝導性ゴム層となる。市販品としては、熱伝導性シリコーンゴムとして、富士高分子工業社製商品名“サーコン”シリーズがある。この製品の熱伝導率は、約２６〜６９×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃の範囲である。 The heat conductive rubber is blended with 100 to 3000 parts by weight of a heat conductive filler such as aluminum oxide and a platinum-based crosslinking catalyst with respect to 100 parts by weight of the rubber component, molded into a sheet shape, and then thermally crosslinked. Can be obtained. The heat conductive rubber layer thus obtained becomes a heat conductive rubber layer having a heat conductivity of 0.7 W / m · K or more. As a commercially available product, there is a product name “Sarcon” series manufactured by Fuji Polymer Industries Co., Ltd. as a heat conductive silicone rubber. The thermal conductivity of this product is in the range of about 26-69 × 10 ⁻⁴ cal / cm · sec · ° C.

断熱性ゴムは、通常のシリコーンゴム、フッ素ゴム、又はこれらのスポンジ体を使用できる。例えば、一般のシリコーンゴムの熱伝導率は、約３．７〜５．４×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃の範囲である。 As the heat insulating rubber, normal silicone rubber, fluoro rubber, or a sponge body thereof can be used. For example, the thermal conductivity of general silicone rubber is in the range of about 3.7 to 5.4 × 10 ⁻⁴ cal / cm · sec · ° C.

発熱体（発熱エレメント）と断熱性ゴム層及び熱伝導性ゴム層との一体化は、発熱体（発熱エレメント）の表面で断熱性ゴムの原料コンパウンドシート及び熱伝導性ゴムの原料コンパウンドシートを直接貼り合せて加熱加硫する場合は、直接一体化ができ、接着剤は不要である。断熱性ゴムシート及び熱伝導性ゴムシートを加熱加硫した後に一体化する場合は、発熱体（発熱エレメント）と断熱性ゴム層との間には熱伝導率０．７Ｗ／ｍ・Ｋ未満の接着層を介在させ、発熱体（発熱エレメント）と熱伝導性ゴム層との間には熱伝導率０．７Ｗ／ｍ・Ｋ以上の接着層を介在させて一体化するのが好ましい。断熱ゴム層側の断熱性を保持し、熱伝導性ゴム層側の熱伝導性を高く維持するためである。接着層としては、接着剤を使用しても良いし、粘着剤を使用することもでき、あるいは両面接着テープを使用することもできる。 Integration of the heat generating element (heat generating element) with the heat insulating rubber layer and the heat conductive rubber layer is performed directly on the surface of the heat generating element (heat generating element) with the material compound sheet for heat insulating rubber and the material compound sheet for heat conductive rubber. When bonded and heat vulcanized, they can be directly integrated and no adhesive is required. When the heat insulating rubber sheet and the heat conductive rubber sheet are integrated after heat vulcanization, the heat conductivity between the heat generating element (heat generating element) and the heat insulating rubber layer is less than 0.7 W / m · K. It is preferable to interpose an adhesive layer and to integrate the heat generating element (heat generating element) and the heat conductive rubber layer with an adhesive layer having a thermal conductivity of 0.7 W / m · K or more interposed. This is because the heat insulating property on the heat insulating rubber layer side is maintained and the heat conductivity on the heat conductive rubber layer side is kept high. As the adhesive layer, an adhesive may be used, an adhesive may be used, or a double-sided adhesive tape may be used.

前記両面のゴム層の厚さは各々０．１〜１０ｍｍの範囲であることが好ましい。 The thickness of the rubber layers on both sides is preferably in the range of 0.1 to 10 mm.

なお、本考案においては、任意の部分に補強層としてガラス繊維織物を配置することもできるし、均熱性を高めるために金属メッシュ層を配置してもよい。 In the present invention, a glass fiber woven fabric can be disposed as a reinforcing layer in an arbitrary portion, or a metal mesh layer may be disposed in order to improve the thermal uniformity.

以下実施例を用いて説明する。なお、本考案は以下の実施例に限定されるものではない。 This will be described below with reference to examples. In addition, this invention is not limited to a following example.

（実施例１）
図１に示すように発熱体（発熱エレメント）１の下面に熱伝導性シリコーン樹脂系接着剤２（東レ・ダウコーニング社製商品名“ＳＥ−４４８６”、“ＳＥ−４４１０”、“ＫＥ−３４９３”、“７９２”のいずれか）を薄く塗布し、その上に熱伝導性ゴム層３（厚さ０．４５ｍｍ、富士高分子工業社製商品名“サーコンＧＳＲ”（熱伝導率６９．２×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃）を貼りあわせた。前記熱伝導性接着剤の替わりに熱伝導性両面テープ（東レ・ダウコーニング社製商品名“７０９２”）を使用することもできる。 Example 1
As shown in FIG. 1, a heat conductive silicone resin adhesive 2 (trade names “SE-4486”, “SE-4410”, “KE-3493” manufactured by Toray Dow Corning Co., Ltd.) is formed on the lower surface of a heating element (heating element) 1. ”Or“ 792 ”is applied thinly, and a heat conductive rubber layer 3 (thickness 0.45 mm, product name“ Sarcon GSR ”manufactured by Fuji Polymer Industries Co., Ltd.) (heat conductivity 69.2 × 10 ⁻⁴ cal / cm · sec · ° C.) A heat conductive double-sided tape (trade name “7092” manufactured by Toray Dow Corning Co., Ltd.) may be used instead of the heat conductive adhesive.

発熱体（発熱エレメント）１の上面には断熱性シリコーン樹脂系接着剤４（東レ・ダウコーニング社製商品名“ＳＥ−９１８６”、“ＳＥ−１７０１”、“ＫＥ−４８９８”のいずれか）を薄く塗布し、その上に断熱性シリコーンゴム層５（熱伝導率約４×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃）を貼りあわせた。 On the upper surface of the heating element (heating element) 1 is a heat insulating silicone resin adhesive 4 (trade names “SE-9186”, “SE-1701”, “KE-4898” manufactured by Toray Dow Corning). It was applied thinly, and a heat insulating silicone rubber layer 5 (thermal conductivity of about 4 × 10 ⁻⁴ cal / cm · sec · ° C.) was bonded thereon.

その後、厚さ方向に軽く圧力をかけた状態で１２０℃に加熱して６０分間保持し、全体を一体化した。 Then, it heated to 120 degreeC in the state which applied the light pressure to the thickness direction, hold | maintained for 60 minutes, and integrated the whole.

得られたラバーヒーター１０は、加熱対象物には熱が伝わりやすく、それ以外の面、例えば空気と接触する面は放熱しにくく、発熱体（発熱エレメント）からの熱は効率よく加熱対象物に伝熱できることが確認できた。電力ロスも少なかった。 In the obtained rubber heater 10, heat is easily transmitted to the object to be heated, and other surfaces, for example, surfaces that come into contact with air are difficult to dissipate, and heat from the heating element (heating element) is efficiently transferred to the object to be heated. It was confirmed that heat could be transferred. There was little power loss.

（実施例２）
図２に示すように発熱体（発熱エレメント）１の下面に熱伝導性ゴム層３（厚さ０．４５ｍｍ、富士高分子工業社製商品名“サーコンＧＳＲ”（熱伝導率６９．２×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃）の未加硫シートを貼りあわせ、上面には断熱性シリコーンゴム層５（厚さ５ｍｍ、熱伝導率約４×１０^-4ｃａｌ／ｃｍ・ｓｅｃ・℃）の未加硫シートを貼りあわせ、１２０℃に加熱して２０分間加熱加硫し、全体を一体化した。 (Example 2)
As shown in FIG. 2, a heat conductive rubber layer 3 (thickness 0.45 mm, product name “Sarcon GSR” manufactured by Fuji Polymer Industries Co., Ltd. (thermal conductivity 69.2 × 10 6) is formed on the lower surface of the heating element (heating element) 1. ^-4 cal / cm · sec · ° C) and a heat insulating silicone rubber layer 5 (thickness 5 mm, thermal conductivity about 4 × 10 ^-4 cal / cm · sec · ° C) The unvulcanized sheet was laminated, heated to 120 ° C. and vulcanized by heating for 20 minutes, and the whole was integrated.

得られたラバーヒーター１１は、加熱対象物には熱が伝わりやすく、それ以外の面、例えば空気と接触する面は放熱しにくく、発熱体（発熱エレメント）からの熱は効率よく加熱対象物に伝熱できることが確認できた。電力ロスも少なかった。 In the obtained rubber heater 11, heat is easily transmitted to the object to be heated, and other surfaces, for example, surfaces that come into contact with air are difficult to dissipate, and heat from the heating element (heating element) is efficiently transferred to the object to be heated. It was confirmed that heat could be transferred. There was little power loss.

［産業上の利用可能分野］
本考案のラバーヒーターは、例えば醸造タンクの加熱器、熱硬化性樹脂の加熱処理器、寒冷地の水道管の保温具、生コンサイロのバルブ凍結防止用保温具、樹脂フィルムのブレス加熱器、生ゴミ処理層の加熱器、オイルの凝固防止用加熱器、スチーム糊除去装置の結露防止器、排気管及び金属配管などの加熱器、スープケトルの加熱器、太陽電池パネル凍結防止器、インスタントスープの保温器、滅菌タンク・減菌タンクの予熱器、冷凍庫内のコンベアセンサー凍結防止器等様々な分野がある。 [Industrial useable fields]
The rubber heater of the present invention includes, for example, a brew tank heater, a thermosetting resin heat treatment device, a water pipe heat insulation device in a cold region, a valve refrigeration heat insulation device for a raw consilo, a resin film breath heater, Waste treatment layer heaters, oil coagulation prevention heaters, steam glue removal equipment dew condensation prevention equipment, exhaust pipe and metal pipe heaters, soup kettle heaters, solar panel antifreeze, instant soup There are various fields such as incubators, preheaters for sterilization tanks and sterilization tanks, conveyor sensor freeze protectors in freezers.

図１は本考案の実施例１に係るラバーヒーターの断面図を示す。1 is a cross-sectional view of a rubber heater according to Embodiment 1 of the present invention. 図２は本考案の実施例１に係るラバーヒーターの断面図を示す。FIG. 2 is a sectional view of the rubber heater according to the first embodiment of the present invention.

Explanation of symbols

１発熱体（発熱エレメント）
２熱伝導性接着剤層
３熱伝導性ゴム層
４断熱性接着剤層
５断熱性ゴム層
１０，１１ラバーヒーター 1 Heating element (heating element)
2 Thermal conductive adhesive layer 3 Thermal conductive rubber layer 4 Thermal insulating adhesive layer 5 Thermal insulating rubber layer 10, 11 Rubber heater

Claims

A heating element and a rubber heater in which both sides of the heating element are covered with rubber layers,
Among the rubber layers, the rubber layer on one side is a heat insulating rubber layer,
A rubber heater, wherein the rubber layer on the other side is a heat conductive rubber layer.

The rubber heater according to claim 1, wherein the thermally conductive rubber layer is a thermally conductive rubber layer having a thermal conductivity of 0.7 W / m · K or more.

An adhesive layer having a thermal conductivity of less than 0.7 W / m · K is interposed between the heating element and the heat insulating rubber layer,
The rubber heater according to claim 1 or 2, wherein an adhesive layer having a thermal conductivity of 0.7 W / m · K or more is interposed between the heating element and the thermally conductive rubber layer.

The rubber heater according to any one of claims 1 to 3, wherein each of the rubber layers on both sides has a thickness in a range of 0.1 to 10 mm.

The rubber heater according to any one of claims 1 to 4, wherein the rubber layers on both sides are silicone rubber, fluororubber, or a sponge body thereof.