JP5939106B2 - Induction heating device - Google Patents

Induction heating device Download PDF

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JP5939106B2
JP5939106B2 JP2012209367A JP2012209367A JP5939106B2 JP 5939106 B2 JP5939106 B2 JP 5939106B2 JP 2012209367 A JP2012209367 A JP 2012209367A JP 2012209367 A JP2012209367 A JP 2012209367A JP 5939106 B2 JP5939106 B2 JP 5939106B2
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heat
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resistant insulating
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JP2014063692A (en
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征紀 矢野
征紀 矢野
新井　充
充 新井
山田　聡
聡 山田
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Meidensha Corp
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Description

本発明は、誘導加熱装置に係わり、特に薄板加熱用誘導加熱装置の大型加熱コイル内面に組み付けられる耐熱絶縁ケースに関するものである。   The present invention relates to an induction heating device, and more particularly to a heat-resistant insulating case assembled on the inner surface of a large heating coil of an induction heating device for thin plate heating.

薄板加熱用誘導加熱装置は特許文献１等によって公知となっており、従来の誘導加熱装置における耐熱絶縁ケースは図５で示すように構成されている。図５において、１はエポキシ樹脂などの絶縁材からなる耐熱絶縁ケースで、この耐熱絶縁ケースは上下左右が密着した矩形状に形成され、前後方向の内部に薄板ワーク(被加熱材)２の流路が形成されている。耐熱絶縁ケース１の外周には高周波電源に接続された加熱コイル３が取付けられており、加熱コイル３に高周波電流を流すことで耐熱絶縁ケース１内が加熱される。   An induction heating apparatus for thin plate heating is known from Patent Document 1 and the like, and a heat-resistant insulating case in a conventional induction heating apparatus is configured as shown in FIG. In FIG. 5, reference numeral 1 denotes a heat-resistant insulating case made of an insulating material such as an epoxy resin. A road is formed. A heating coil 3 connected to a high-frequency power source is attached to the outer periphery of the heat-resistant insulating case 1, and the inside of the heat-resistant insulating case 1 is heated by passing a high-frequency current through the heating coil 3.

耐熱絶縁ケース１は、加熱コイル３により加熱されることで熱変形する。そのため、耐熱絶縁ケース１に補強絶縁板４をセラミック材で形成された締結ボルト５によって固定している。また、耐熱絶縁ケース１の内部(薄板ワークの流路)には加温された風が送られることで、耐熱絶縁ケース１を形成するとき、上下左右の板材の接合位置に接着剤（レジン）が塗布されて加温された空気流が漏れないように構成されている。   The heat-resistant insulating case 1 is thermally deformed by being heated by the heating coil 3. For this reason, the reinforcing insulating plate 4 is fixed to the heat-resistant insulating case 1 by fastening bolts 5 made of a ceramic material. In addition, when the heat-resistant insulating case 1 is formed by sending heated air inside the heat-resistant insulating case 1 (the flow path of the thin plate workpiece), an adhesive (resin) is formed at the joining position of the upper, lower, left and right plate members. Is applied so that the heated air stream does not leak.

特開２００４−２４１１７３JP 2004-241173 A

薄板加熱用誘導加熱装置は塗料の乾燥に用いられるが、その際、従来では耐熱絶縁ケース１の内部温度は１００゜Ｃ程度のあることから、耐熱絶縁ケース１を形成する部材は１００゜Ｃ程度の耐熱温度のもので構成できたが、近年、耐熱絶縁ケース１の内部温度が２００゜Ｃ以上の乾燥温度を必要とする塗料が開発されている。   The thin plate heating induction heating device is used for drying paints. At that time, since the internal temperature of the heat-resistant insulating case 1 is conventionally about 100 ° C, the member forming the heat-resistant insulating case 1 is about 100 ° C. In recent years, paints have been developed that require a drying temperature of 200 ° C. or higher for the internal temperature of the heat-resistant insulating case 1.

しかし、耐熱絶縁ケース１の内部温度が２００゜Ｃ以上になると、高温下での部材の乾燥収縮が大きくなり、耐熱絶縁ケースの寸法が大きく変化して締結ボルト５が破断する虞を有している。また、耐熱絶縁ケースにはレジンで接着されていることで、構成部材の変形発生時に、変形部材のみを分解して交換することは不可能で、一部の変形発生時には耐熱絶縁ケース全体の交換となってしまうことから経済的にも問題があり、２００゜Ｃ以上の内部温度に耐え得る耐熱絶縁ケースが要望されている。   However, when the internal temperature of the heat-resistant insulating case 1 becomes 200 ° C. or higher, the drying shrinkage of the member at a high temperature increases, and the dimensions of the heat-resistant insulating case change greatly, and the fastening bolt 5 may be broken. Yes. In addition, since the resin is bonded to the heat-resistant insulating case, it is impossible to disassemble and replace only the deformed member when the component member is deformed. Therefore, there is a problem economically, and there is a demand for a heat-resistant insulating case that can withstand an internal temperature of 200 ° C. or higher.

本発明が目的とするとこは、上記要望に基づく誘導加熱装置を提供することにある。   An object of the present invention is to provide an induction heating apparatus based on the above-mentioned demand.

本発明は、高周波電源に接続された誘導加熱コイルを介して耐熱絶縁ケース内を加熱し、耐熱絶縁ケース内を流れる薄板ワークを加熱する誘導加熱装置において、
前記耐熱絶縁ケースを構成する耐熱部材をセメント系耐熱断熱材からなる耐熱絶縁ボードとし、耐熱絶縁ケースの上板部分と下板部分になる複数枚の耐熱絶縁ボードを、耐熱絶縁ケースの側板と接合する部分にそれぞれ複数の凸部と複数の凹部を有する同一形状に形成し、且つ前記側板に複数の凸部を形成し、この側板の凸部を前記耐熱絶縁ボードの凹部に嵌合して耐熱絶縁ケースを組み込むと共に、前記耐熱絶縁ボードの上板部分と下板部分の各凸部に穿設されたボルト孔間に絶縁ボルトを貫通し、ナットの締め込みで耐熱絶縁ケースを構成したことを特徴としたものである。 The present invention is an induction heating apparatus that heats a heat-resistant insulating case through an induction heating coil connected to a high-frequency power source and heats a thin plate work flowing in the heat-resistant insulating case.
The heat-resistant member constituting the heat-resistant insulating case is a heat-resistant insulating board made of cement-based heat-resistant heat insulating material, and a plurality of heat-resistant insulating boards that are the upper plate portion and the lower plate portion of the heat-resistant insulating case are joined to the side plate of the heat-resistant insulating case. Forming a plurality of convex portions and a plurality of concave portions in the same shape, and forming a plurality of convex portions on the side plate, and fitting the convex portions of the side plate to the concave portions of the heat-resistant insulating board. Insulating case was built, and the insulation bolt was penetrated between the bolt holes drilled in the convex part of the upper plate part and lower plate part of the heat-resistant insulation board, and the heat-resistant insulation case was configured by tightening the nut It is a feature.

また、本発明は、耐熱絶縁ケースの上板部分と下板部分にそれぞれ点検窓を形成して常時は点検蓋を被せ、上板部分と下板部分間に絶縁ボルトを貫通し、ナットの締め込みで耐熱絶縁ケースを構成したことを特徴としたものである。   In addition, the present invention also forms inspection windows on the upper and lower plate portions of the heat-resistant insulation case, and always covers the inspection lid, penetrates the insulation bolt between the upper and lower plate portions, and tightens the nut. This is characterized in that a heat-resistant insulating case is formed.

以上のとおり、本発明によれば、発生したガスや加温空気流に漏れを生じさせず、機密性を保ちながら２００゜Ｃ以上の内部温度での使用が可能となるものである。また、組込み時間が大幅に短縮でき、且つ長期間の使用によって耐熱絶縁ケースの内部損傷が発生した場合でも、耐熱絶縁ケースを構成する耐熱絶縁ボードの裏表交代や、或いは上下交代させるだけで補修ができ、新規の部材と交換することなく長期間の使用が可能となるものである。   As described above, according to the present invention, the generated gas and the heated air flow are not leaked and can be used at an internal temperature of 200 ° C. or higher while maintaining confidentiality. In addition, even if the built-in time can be significantly shortened and internal damage to the heat-resistant insulation case occurs due to long-term use, repair can be done by simply changing the front and back of the heat-resistant insulation board that constitutes the heat-resistant insulation case, or changing it up and down. It can be used for a long time without replacing with a new member.

本発明の実施形態を示す耐熱絶縁ケースの構成図。The block diagram of the heat-resistant insulation case which shows embodiment of this invention. 耐熱絶縁ボードの構成図。The block diagram of a heat-resistant insulation board. 側板の構成図。The block diagram of a side plate. 点検蓋の構成図。The block diagram of an inspection lid. 従来の耐熱絶縁ケースの構成図。The block diagram of the conventional heat-resistant insulation case.

図１は、本発明の実施例を示す耐熱絶縁ケース１０の構成図で、耐熱絶縁ケース１０は、図１の例では上板部分として２枚の耐熱絶縁ボード１１ａ，１１ｂよりなり、また、下板部分も同様に２枚の耐熱絶縁ボード１１ｃ，１１ｄよりなっている。
上板の耐熱絶縁ボード１１ａ，１１ｂ、及び下板の耐熱絶縁ボード１１ｃ，１１ｄの各連結部分にはそれぞれ点検窓１２が形成され、常時は点検蓋１３ａ，１３ｂによって塞がれている。点検窓１２を省いても良いことは勿論で、その場合には、耐熱絶縁ボード１１ａ，１１ｂ、及び下板の耐熱絶縁ボード１１ｃ，１１ｄはそれぞれ密着して直接接合される。 FIG. 1 is a configuration diagram of a heat-resistant insulating case 10 showing an embodiment of the present invention. The heat-resistant insulating case 10 is composed of two heat-resistant insulating boards 11a and 11b as upper plate portions in the example of FIG. The plate portion is similarly composed of two heat-resistant insulating boards 11c and 11d.
An inspection window 12 is formed at each connecting portion of the upper heat-resistant insulating boards 11a and 11b and the lower heat-resistant insulating boards 11c and 11d, and is normally closed by inspection lids 13a and 13b. Of course, the inspection window 12 may be omitted. In this case, the heat-resistant insulating boards 11a and 11b and the lower heat-resistant insulating boards 11c and 11d are in close contact and directly joined.

耐熱絶縁ボード１１ａ〜１１ｄとしてはセメント系耐熱断熱材（無機質系絶縁材料）が使用される。この耐熱絶縁ボード１１ａ〜１１ｄは、図２で示すように４枚を略同外形寸法に形成されて耐熱絶縁ケース１０の組込み時での上板と下板との部材の共通化を図っている。   As the heat-resistant insulating boards 11a to 11d, cement-based heat-resistant heat insulating materials (inorganic insulating materials) are used. As shown in FIG. 2, four of the heat-resistant insulating boards 11 a to 11 d are formed to have substantially the same outer dimensions, and the members of the upper and lower plates are made common when the heat-resistant insulating case 10 is assembled. .

すなわち、耐熱絶縁ボード１１ａ〜１１ｄは、組込み時に絶縁ボルト１３が貫通するボルト孔１１ｅを有する凸部１１ｆ〜１１ｉと、図３で示す側板１４が嵌合される凹部１１ｊ〜１１ｍが形成されている。なお、この凹部１１ｊ〜１１ｍと側板１４の嵌合には気密性を持たせるために、側板１４の凸部とは木組みインロー合わせ構造にされている。そのため、凹部１１ｊ〜１１ｍにはそれぞれに段差を持たせている。   That is, the heat-resistant insulating boards 11a to 11d are formed with convex portions 11f to 11i having bolt holes 11e through which the insulating bolts 13 are inserted, and concave portions 11j to 11m into which the side plates 14 shown in FIG. 3 are fitted. . In addition, in order to give airtightness to the fitting between the concave portions 11j to 11m and the side plate 14, the convex portion of the side plate 14 has a wooden bracing inlay structure. Therefore, the recesses 11j to 11m are each provided with a step.

側板１４は図３で示すように、耐熱絶縁ボード１１に形成された凹部１１ｊ〜１１ｍと嵌合する凸部１４ａ〜１４ｈが形成されている。
図４は点検蓋１３（１３ａ，１３ｂ）の構成図で、上下にそれぞれ絶縁ボルト１５の貫通孔１３ａが形成され、また、左右には耐熱絶縁ボード１１の側面と嵌合するための段差部が形成されている。この点検蓋１３は、耐熱絶縁ケース１０の保守・点検時に絶縁ボルト１５を取外すことで耐熱絶縁ケース１０の内部を覗けるようにしたもので、これによって耐熱絶縁ケース１０の内部状態の把握を可能としたものである。絶縁ボルト１５は、その上下に部分的にネジ部が螺設され、耐熱絶縁ケース１０の上板と下板間を貫通するかんざし絶縁ボルトが使用されてネジ部にナットが螺合する。 As shown in FIG. 3, the side plate 14 is formed with convex portions 14 a to 14 h that fit into the concave portions 11 j to 11 m formed on the heat-resistant insulating board 11.
FIG. 4 is a configuration diagram of the inspection lid 13 (13a, 13b). The through holes 13a of the insulating bolts 15 are formed on the upper and lower sides, and the step portions for fitting with the side surfaces of the heat-resistant insulating board 11 are provided on the left and right sides. Is formed. The inspection lid 13 is configured such that the inside of the heat-resistant insulating case 10 can be seen by removing the insulating bolt 15 during maintenance / inspection of the heat-resistant insulating case 10, thereby making it possible to grasp the internal state of the heat-resistant insulating case 10. It is a thing. The insulating bolt 15 is partially threaded at the top and bottom thereof, and a knurled insulating bolt that penetrates between the upper plate and the lower plate of the heat-resistant insulating case 10 is used, and a nut is screwed into the screw portion.

なお、複数の耐熱絶縁ボード１１を同形構造にした理由の一つとしは、耐熱絶縁ケース１０の内部温度が２００゜Ｃ以上に上昇することで、薄板ワーク２の塗料からの発生ガスや、長期間の使用によって耐熱絶縁ケース１０内の耐熱絶縁ボード内面が損傷する虞が生じる。その場合、損傷発生した箇所の耐熱絶縁ボード１１の部分取換えや、或いは、耐熱絶縁ケース内面が全体的に損傷した場合には、
例えば、上板部分のみの損傷のときには上板のみの表裏をひっくり返すことでよく、或いは、
上板部分の耐熱絶縁ボードと下板部分の耐熱絶縁ボードの何れか一方，若しくはそれぞれの表裏をひっくり返すことで新たに部材交換をしなくてもリニュアールが可能となって、耐熱絶縁ケース１０の更なる長期使用が可能となる。 One of the reasons why the plurality of heat-resistant insulating boards 11 have the same shape structure is that the internal temperature of the heat-resistant insulating case 10 rises to 200 ° C. or higher so that the gas generated from the paint on the thin plate workpiece 2 is increased. The use of the period may cause damage to the inner surface of the heat-resistant insulating board in the heat-resistant insulating case 10. In that case, if the damaged heat-resistant insulating board 11 is partially replaced or the inner surface of the heat-resistant insulating case is totally damaged,
For example, when only the upper plate part is damaged, it may be turned upside down only on the upper plate, or
By turning over either the heat-resistant insulating board of the upper plate portion or the heat-resistant insulating board of the lower plate portion, or the front and back of each, the renewal is possible without newly replacing the member. Further long-term use is possible.

耐熱絶縁ケース１０の組込みは、下板となる耐熱絶縁ボード１１ｃ，１１ｄに
左右２枚の測板１４を介して上板となる耐熱絶縁ボード１１ａ，１１ｂを配置し、かんざし絶縁ボルト（絶縁ボルト）１５によって締結することで実施する。その際、各耐熱絶縁ボード１１に設けられた凹部１１ｊ〜１１ｍに、側板１４に設けられた凸部１４ａ〜１４ｈをそれぞれ所定の凹部位置に嵌合し、穿設されたボルト孔を通して上板と下板間にかんざし絶縁ボルトを貫通させて固定する。その後、点検蓋１３を被せることで組込みは終了する。 The heat-resistant insulating case 10 is assembled by placing the heat-resistant insulating boards 11a and 11b serving as the upper plate on the heat-resistant insulating boards 11c and 11d serving as the lower plates via the two measuring plates 14 on the left and right sides, and the hairpin insulating bolts (insulating bolts). It is carried out by fastening by 15. At that time, the convex portions 14a to 14h provided on the side plate 14 are respectively fitted into the concave portions 11j to 11m provided on the respective heat-resistant insulating boards 11 at predetermined concave positions, and the upper plate and the upper plate are inserted through the drilled bolt holes. Hold the insulation bolt between the lower plates and fix it. Thereafter, the installation is completed by covering the inspection lid 13.

以上のように本発明は、薄板加熱用誘導加熱装置の耐熱絶縁ケース用の耐熱絶縁ボードをセメント系耐熱断熱材とし、その耐熱絶縁ボードを複数同形状に形成する。そして、耐熱絶縁ケースの上板部分及び下板部分間に設けられる側板との接合部を木組みインロー合わせ構造にして絶縁ボルトとナットで締結して耐熱絶縁ケースを構成したものである。   As described above, according to the present invention, the heat-resistant insulating board for the heat-resistant insulating case of the thin plate heating induction heating device is a cement-based heat-resistant insulating material, and a plurality of the heat-resistant insulating boards are formed in the same shape. A heat-resistant insulating case is constructed by joining a joint portion with a side plate provided between an upper plate portion and a lower plate portion of a heat-resistant insulating case into a wooden braided inlay structure and fastening with insulating bolts and nuts.

このように構成した本発明によれば、発生したガスや加温空気流に漏れを生じさせず、機密性を保ちながら２００゜Ｃ以上の内部温度での使用が可能となるものである。また、組込み時間が大幅に短縮でき、且つ長期間の使用によって耐熱絶縁ケースの内部損傷が発生した場合でも、耐熱絶縁ケースを構成する耐熱絶縁ボードの表裏をひっくり返すだけで補修ができ、新規の部材と交換することなく長期間の使用が可能となるものである。   According to the present invention configured as described above, the generated gas and the heated air flow are not leaked, and can be used at an internal temperature of 200 ° C. or higher while maintaining confidentiality. In addition, if the built-in time can be greatly shortened and internal damage to the heat-resistant insulation case occurs due to long-term use, it can be repaired by turning the front and back of the heat-resistant insulation board that constitutes the heat-resistant insulation case. It can be used for a long time without replacement.

１０… 耐熱絶縁ケース
１１… 耐熱絶縁ボード
１２… 点検窓
１３… 点検蓋
１４… 側板
１５… 絶縁ボルト（かんさし絶縁ボルト） DESCRIPTION OF SYMBOLS 10 ... Heat-resistant insulation case 11 ... Heat-resistant insulation board 12 ... Inspection window 13 ... Inspection lid 14 ... Side plate 15 ... Insulation bolt (insulation bolt)

Claims (2)

高周波電源に接続された誘導加熱コイルを介して耐熱絶縁ケース内を加熱し、耐熱絶縁ケース内を流れる薄板ワークを加熱する誘導加熱装置において、
前記耐熱絶縁ケースを構成する耐熱部材を無機質系絶縁材料からなる耐熱絶縁ボードとし、耐熱絶縁ケースの上板部分と下板部分になる複数枚の耐熱絶縁ボードを、耐熱絶縁ケースの側板と接合する部分にそれぞれ複数の凸部と複数の凹部を有する同一形状に形成し、且つ前記側板に複数の凸部を形成し、この側板の凸部を前記耐熱絶縁ボードの凹部に嵌合して耐熱絶縁ケースを組み込むと共に、前記耐熱絶縁ボードの上板部分と下板部分の各凸部に穿設されたボルト孔間に絶縁ボルトを貫通し、ナットの締め込みで耐熱絶縁ケースを構成したことを特徴とした誘導加熱装置。 In an induction heating apparatus that heats a heat-resistant insulating case through an induction heating coil connected to a high-frequency power source and heats a thin plate work flowing in the heat-resistant insulating case,
The heat-resistant member constituting the heat-resistant insulating case is a heat-resistant insulating board made of an inorganic insulating material, and a plurality of heat-resistant insulating boards serving as the upper plate portion and the lower plate portion of the heat-resistant insulating case are joined to the side plate of the heat-resistant insulating case. A plurality of convex portions and a plurality of concave portions are formed in the same shape, and a plurality of convex portions are formed on the side plate, and the convex portions of the side plate are fitted into the concave portions of the heat-resistant insulating board. In addition to incorporating a case, the insulation bolt is penetrated between the bolt holes formed in the convex portions of the upper plate portion and the lower plate portion of the heat-resistant insulation board, and the heat-resistant insulation case is configured by tightening the nut. Induction heating device. 前記耐熱絶縁ケースの上板部分と下板部分にそれぞれ点検窓を形成して常時は点検蓋を被せ、上板部分と下板部分間に絶縁ボルトを貫通し、ナットの締め込みで耐熱絶縁ケースを構成したことを特徴とした請求項１記載の誘導加熱装置。
Inspection windows are formed on the upper and lower plate parts of the heat-resistant insulation case, respectively, and the inspection cover is always put on. The insulation bolt is passed between the upper and lower plate parts, and the heat-resistant insulation case is tightened with a nut. The induction heating apparatus according to claim 1, wherein:
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JP2600350B2 (en) * 1988-12-05 1997-04-16 株式会社明電舎 Induction heating coil device
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FR2752134B1 (en) * 1996-08-02 2003-12-26 Selas Sa INDUCTION HEATING DEVICE AND CONTINUOUS HEAT TREATMENT INSTALLATION COMPRISING SUCH A DEVICE
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