JP5063245B2 - Tape heater and tape heater structure - Google Patents

Tape heater and tape heater structure Download PDF

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JP5063245B2
JP5063245B2 JP2007201506A JP2007201506A JP5063245B2 JP 5063245 B2 JP5063245 B2 JP 5063245B2 JP 2007201506 A JP2007201506 A JP 2007201506A JP 2007201506 A JP2007201506 A JP 2007201506A JP 5063245 B2 JP5063245 B2 JP 5063245B2
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belt
tape heater
base material
heating wire
heating
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JP2009037885A (en
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俊浩 神永
康憲 高桑
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株式会社三幸富山センター
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本発明は、配管の加熱に使用されるヒーターに係り、特に帯状基材に発熱線が設けられ、配管に巻き付けて設置される帯状のテープヒーター及びテープヒーター構造に関する。   The present invention relates to a heater used for heating a pipe, and more particularly to a belt-like tape heater and a tape heater structure in which a heating wire is provided on a belt-like base material and is wound around the pipe.

配管の加熱に使用されるヒーターとして、帯状基材に発熱線が設けられ、配管に巻き付けて設置される帯状のテープヒーターが知られている。例えば特許文献１には、耐熱性と可撓性を有するフッ素樹脂等の帯状基材上に、ミシンで縫い付ける等によって発熱線を設け、帯状基材の発熱線側である加熱側面又は加熱側面と非加熱側面の双方に均熱材を設け、基材の非加熱側面に断熱層を設け、帯状基材と加熱材と断熱層をフッ素樹脂等の被覆層で被覆すると共に、被覆層から引き出される発熱線の電力線の先端を電源供給元と接続可能なプラグ形状とするテープヒーターが記載されており、前記テープヒーターは、配管に螺旋状に巻き付けて設置される。   As a heater used for heating a pipe, a belt-like tape heater is known in which a heating wire is provided on a belt-like base material and is wound around the pipe. For example, Patent Document 1 discloses a heating side surface or a heating side surface that is provided on a belt-shaped base material such as a heat-resistant and flexible fluorine resin by sewing with a sewing machine, etc. A soaking material is provided on both the non-heated side and a heat insulating layer is provided on the non-heated side of the substrate. A tape heater having a plug shape that can be connected to the power supply source is described. The tape heater is wound around a pipe in a spiral manner.

特開２００４−３０３５８０号公報JP 2004-303580 A

ところで、特許文献１のテープヒーターを長尺の配管に設置する場合、複数のテープヒーターを配管に螺旋状に巻き付けて設置することになるが、前記テープヒーターは各々について電源供給元と接続する必要があるため、前記複数のテープヒーターのそれぞれに対応して電源ケーブルを引き回すことが必要となる。しかしながら、前記各テープヒーターに対応する電源ケーブルの引き回しは、労力を要する煩雑な作業であると共に、床面等に引き回される電源ケーブル数の増大により、設置場所の安全性の低下や、設置コストの高額化という不具合が生ずる。   By the way, when installing the tape heater of patent document 1 in a long pipe, a plurality of tape heaters are spirally wound around the pipe, and the tape heater needs to be connected to a power supply source for each. Therefore, it is necessary to route a power cable corresponding to each of the plurality of tape heaters. However, the routing of the power cables corresponding to the tape heaters is a laborious and troublesome work, and the increase in the number of power cables routed to the floor or the like reduces the safety of the installation site or the installation. There is a problem of high costs.

本発明は上記課題に鑑み提案するものであって、テープヒーター毎の電源ケーブルの引き回しを不要とし、設置作業の労力低減、設置コストの低減及び設置場所の安全性の向上を図ることができるテープヒーター及びテープヒーター構造を提供することを目的とする。   The present invention is proposed in view of the above-described problems, and does not require a power cable for each tape heater, and can reduce the labor of installation work, reduce the installation cost, and improve the safety of the installation place. An object is to provide a heater and tape heater structure.

本発明のテープヒーターは、絶縁性、耐熱性及び可撓性を有する帯状基材と、前記帯状基材の一方面に設けられる発熱線と、前記帯状基材の他方面に長手方向に沿って設けられ、前記発熱線に電流を供給する一対の電力線と、前記一対の電力線の両端部に設けられるコネクタとを備え、前記発熱線は、前記帯状基材の一方面に、この帯状基材と同一の素材で形成されたミシン糸により所定縫いピッチで縫いつけられ、その一端部が該帯状基材を貫通して前記一対の電力線の一方に接続され、その他端部が該帯状基材を貫通して前記一対の電力線の他方に接続され、前記帯状基材の一方面の加熱面側には前記発熱線及び前記発熱線を帯状基材に縫い付けるミシン糸だけが設けられていることを特徴とする。 The tape heater of the present invention is a belt-like base material having insulating properties, heat resistance and flexibility, a heating wire provided on one surface of the belt-like base material, and the other surface of the belt-like base material along the longitudinal direction. provided, and a pair of power line for supplying a current to the heating wire, e Bei and a connector provided at both end portions of said pair of power lines, the heating line, on one surface of the strip-like base material, the strip-like base material Are sewn at a predetermined stitching pitch with a sewing thread formed of the same material as that, and one end thereof penetrates the belt-like base material and is connected to one of the pair of power lines, and the other end penetrates the belt-like base material. The heating wire is connected to the other of the pair of power lines, and only the sewing thread that sews the heating wire and the heating wire to the belt-like substrate is provided on the heating surface side of one surface of the belt-like substrate. And

また、本発明のテープヒーターは、設定温度の検出に応じて前記発熱線と前記電力線との間の通電を遮断するサーモスイッチを前記帯状基材の非加熱面側に設け、前記電力線は、屈曲性のよい平編み線或いは可撓撚線であり、さらに、前記帯状基材の他方面側に於いて、該帯状基材の長手方向に沿って端部にそれぞれ配設され、該帯状基材の折り返された折り返し部で被覆されることにより該帯状基材に保持され、絶縁性、耐熱性及び可撓性を有する被覆材を前記帯状基材に直接被覆することを特徴とする。 Further, the tape heater according to the present invention is provided with a thermo switch on the non-heated surface side of the belt-like base material for interrupting energization between the heating wire and the power wire according to detection of a set temperature, and the power wire is bent. A flat knitted wire or a flexible twisted wire having good properties, and further disposed on the other side of the belt-like base material along the longitudinal direction of the belt-like base material. It is characterized in that the belt-shaped substrate is directly covered with a coating material that is held by the folded-back portion and is held on the belt-shaped substrate and has insulating properties, heat resistance, and flexibility.

また、本発明のテープヒーターは、絶縁性、耐熱性及び可撓性を有する被覆材を帯状基材に直接被覆することを特徴とする。   Further, the tape heater of the present invention is characterized in that a belt-like substrate is directly coated with a coating material having insulating properties, heat resistance and flexibility.

また、本発明のテープヒーター構造は、絶縁性、耐熱性及び可撓性を有する帯状基材と、前記帯状基材上の一方面に設けられる発熱線と、前記帯状基材の他方面に長手方向に沿って設けられ、前記発熱線に電流を供給する一対の電力線と、前記一対の電力線の両端部に設けられるコネクタとを備える第１テープヒーターと第２テープヒーターとを有し、前記発熱線は、前記帯状基材の一方面に、この帯状基材と同一の素材で形成されたミシン糸により所定縫いピッチで縫いつけられ、その一端部が該帯状基材を貫通して前記一対の電力線の一方に接続され、その他端部が該帯状基材を貫通して前記一対の電力線の他方に接続され、前記帯状基材の一方面の加熱面側には前記発熱線及び前記発熱線を帯状基材に縫い付けるミシン糸だけが設けられており、前記第２テープヒーターの一端部のコネクタと前記第１テープヒーターの他端部のコネクタとを接続して、前記第１テープヒーターの発熱線と前記第２テープヒーターの発熱線とを並列に接続し、前記第１テープヒーターが、一端部のコネクタから供給される電源を前記電力線を介して前記他端部のコネクタに導き、前記他端部のコネクタから前記第２テープヒーターの前記一端部のコネクタに導出することを特徴とする。 In addition, the tape heater structure of the present invention has a strip-shaped base material having insulation, heat resistance and flexibility, a heating wire provided on one surface of the strip-shaped base material, and a longitudinal direction on the other surface of the strip-shaped base material. provided along the direction, has the heating wire and a pair of power line for supplying a current to, and a first tape heater and a second tape heater and a connector provided at both end portions of said pair of power lines, the heating The wire is sewn to one surface of the belt-like base material at a predetermined sewing pitch by a sewing thread formed of the same material as the belt-like base material, and one end portion thereof penetrates the belt-like base material and the pair of power lines The other end of the belt-shaped base material is connected to the other of the pair of power lines, and the heating wire and the heating wire are belt-shaped on the heating surface side of one surface of the belt-shaped base material. Only the sewing thread to be sewn on the base material is provided. And which, by connecting the connector of the other end portion of the second said connector at one end of the tape heater first tape heater, a heating wire of the first tape heater and a heating wire of said second tape heater The first tape heater is connected in parallel, and the power supplied from the connector at one end is led to the connector at the other end via the power line, and the connector of the second tape heater is connected from the connector at the other end. It leads out to the connector of one end part.

また、本発明のテープヒーター構造は、前記第１テープヒーターの発熱線の抵抗値と前記第２テープヒーターの発熱線の抵抗値を略同一とすることを特徴とする。   The tape heater structure of the present invention is characterized in that the resistance value of the heating wire of the first tape heater and the resistance value of the heating wire of the second tape heater are substantially the same.

また、本発明のテープヒーター構造は、前記第１テープヒーターと前記第２テープヒーターの何れか一方にのみ温度制御用の温度センサを設けることを特徴とする。   The tape heater structure of the present invention is characterized in that a temperature sensor for temperature control is provided only in one of the first tape heater and the second tape heater.

尚、本明細書開示の発明には、各発明や各実施形態の構成の他に、これらの部分的な構成を本明細書開示の他の構成に変更して特定したもの、或いはこれらの構成に本明細書開示の他の構成を付加して特定したもの、或いはこれらの部分的な構成を部分的な作用効果が得られる限度で削除して特定した上位概念化したものも含まれる。   The invention disclosed in this specification includes, in addition to the configurations of each invention and each embodiment, those specified by changing these partial configurations to other configurations disclosed in this specification, or these configurations. To which other configurations disclosed in the present specification are added and specified, or those partial configurations deleted and specified to the extent that partial effects can be obtained are included.

本発明のテープヒーター或いはテープヒーター構造は、テープヒーター相互をコネクタを介して導通接続することが可能であり、一のテープヒーターに供給される電力を他のテープヒーターに供給することが可能である。従って、テープヒーター毎の電源ケーブルの引き回しを不要とし、設置作業の労力低減、設置コストの低減及び設置場所の安全性の向上を図ることができる。更に、コネクタ相互の接続で複数のテープヒーターを接続できるので、係る点からも省労力で設置することができる。   The tape heater or tape heater structure of the present invention can connect the tape heaters to each other via a connector, and can supply power supplied to one tape heater to other tape heaters. . Therefore, it is not necessary to route the power cable for each tape heater, and it is possible to reduce the labor of the installation work, reduce the installation cost, and improve the safety of the installation location. Furthermore, since a plurality of tape heaters can be connected by connecting the connectors to each other, it can be installed with labor saving from this point.

また、設定温度の検出に応じて前記発熱線と前記電力線との間の通電を遮断するサーモスイッチを前記帯状基材の非加熱面側に設け、前記帯状基材の加熱面側には前記発熱線及び前記発熱線を帯状基材に縫い付けるミシン糸だけを設けることにより、異常加熱を防止して、安全性を高めることができると共に、テープヒーターと配管の密着性を高めて効率的な加温を行うことができる。   In addition, a thermo switch for interrupting energization between the heating wire and the power wire in response to detection of a set temperature is provided on the non-heating surface side of the belt-like base material, and the heat generation on the heating surface side of the belt-like base material. By providing only the sewing thread that sews the wire and the heating wire to the belt-like base material, abnormal heating can be prevented and safety can be improved, and the adhesiveness between the tape heater and the piping can be improved to increase the efficiency. The temperature can be done.

また、絶縁性、耐熱性及び可撓性を有する被覆材を前記帯状基材に直接被覆することにより、テープヒーターの厚さを極めて薄くすることが可能となり、テープヒーターの嵩張りを激減することができ、不使用時の保管も容易となる。更に、例えば配管の長手方向に沿わせて配管の周囲を円筒状に被覆する等、配管に対する設置形態の自由度を高めることができる。更に、配管に螺旋状に設置することを必要とせず、テープヒーターの長手方向を配管の長手方向に揃えてテープヒーターを設置し、配管長に合わせてテープヒーターを設置することが可能であり、少数のテープヒーターでより長い配管領域を加温することができる。更に、配管に対する密着性を高めることができ、効率的に配管を加温することができる。   In addition, by directly covering the strip-shaped substrate with a coating material having insulating properties, heat resistance and flexibility, the thickness of the tape heater can be made extremely thin, and the bulkiness of the tape heater can be drastically reduced. Can be stored easily when not in use. Furthermore, the freedom degree of the installation form with respect to piping can be raised, for example, the circumference | surroundings of piping are coat | covered cylindrically along the longitudinal direction of piping. Furthermore, it is possible to install the tape heater in accordance with the pipe length without installing the pipe in a spiral shape, by installing the tape heater with the longitudinal direction of the tape heater aligned with the longitudinal direction of the pipe, Longer piping areas can be heated with a small number of tape heaters. Furthermore, the adhesiveness with respect to piping can be improved and piping can be heated efficiently.

また、複数のテープヒーターを並列に接続することにより、配管に設置される複数のテープヒーターの温度制御が極めて容易となる。また、複数のテープヒーターの発熱線の抵抗値を略同一とすることにより、配管に設置される複数のテープヒーターの温度を略同一とし、テープヒーターを設置した領域全体に亘って配管を温度ムラがなく略均一温度で加温することができる。また、複数のテープヒーターに対して１つのテープヒーターに温度センサを設けることにより、温度センサの設置個数を低減し、コスト低減を図ることができる。   In addition, by connecting a plurality of tape heaters in parallel, temperature control of the plurality of tape heaters installed in the pipe becomes extremely easy. Moreover, by making the resistance values of the heating wires of the plurality of tape heaters substantially the same, the temperatures of the plurality of tape heaters installed in the piping are made substantially the same, and the temperature of the piping is uneven over the entire area where the tape heaters are installed. It can be heated at a substantially uniform temperature. Further, by providing a temperature sensor to one tape heater for a plurality of tape heaters, the number of temperature sensors installed can be reduced and the cost can be reduced.

本発明の実施形態のテープヒーター及びテープヒーター構造について説明する。   The tape heater and tape heater structure of the embodiment of the present invention will be described.

本実施形態のテープヒーター１は、図１〜図４に示すように、帯状基材２と、帯状基材２の加熱面側（平面側）に設けられる発熱線３と、帯状基材２の幅方向の両端部に設けられ、発熱線３に電流を供給する一対の電力線４・４と、一対の電力線４・４の一方の端部に設けられるコネクタ５ａ・５ｂと、前記一対の電力線４・４の他方の端部に設けられるコネクタ５ｃ・５ｄとを備える。   As shown in FIGS. 1 to 4, the tape heater 1 of the present embodiment includes a belt-shaped substrate 2, a heating wire 3 provided on the heating surface side (plane side) of the belt-shaped substrate 2, and the belt-shaped substrate 2. A pair of power lines 4, 4 provided at both ends in the width direction for supplying current to the heating wire 3, connectors 5 a, 5 b provided at one end of the pair of power lines 4, 4, and the pair of power lines 4 -Connector 5c * 5d provided in the other edge part of 4 is provided.

帯状基材２は、略長方形であり、幅方向の両端部には底面側に折り返される折り返し部２１・２１がそれぞれ設けられている。帯状基材２は、例えばＰＴＦＥ、ＰＥＴ、ＦＥＰ、ＰＣＴＦＥ、ＥＴＦＥ、ＥＣＴＦＥ、ＰＶｄＦなどのフッ素系樹脂、より好ましくはＰＴＦＥとすると好適であるが、絶縁性、耐熱性及び可撓性を有する適宜の素材で形成することが可能である。また、帯状基材２の厚さは、例えば０．２５ｍｍ〜２ｍｍ程度とすることが強度や屈曲性等の点から好ましい。   The belt-like substrate 2 is substantially rectangular, and folded portions 21 and 21 that are folded back to the bottom surface side are provided at both ends in the width direction. The belt-like substrate 2 is preferably made of a fluorine-based resin such as PTFE, PET, FEP, PCTFE, ETFE, ECTFE, PVdF, and more preferably PTFE. It can be formed of a material. The thickness of the belt-like substrate 2 is preferably about 0.25 mm to 2 mm, for example, from the viewpoint of strength and flexibility.

発熱線３は、図４（ａ）の帯状基材２の加熱面側に蛇行して帯状基材２の両端近傍まで亘って配設され、図４に示すように、ミシン糸６で帯状基材２に縫い付けられている。発熱線３は、例えば素材はステンレス鋼繊維とすると好適であるが、通電して発熱線として機能し、且つ屈曲性或いは柔軟性を有する適宜の素材で形成することが可能である。また、ミシン糸６は、例えばフッ素繊維とすると好適であるが、耐熱性を有する適宜の素材とすることが可能であり、好ましくは帯状基材２と同一の素材とするとよい。前記ミシン糸６による縫い付けは工業用ミシンを使用して行うことが可能であり、所定縫いピッチでミシン糸６で縫い付けることにより、発熱線５の発熱中の伸びや動きを抑制できる。ミシン糸６による縫いピッチは、例えば２ｍｍ〜５ｍｍ程度とすることが柔軟性等の点から好ましい。後述の如く、帯状基材２の加熱面側には発熱線５とミシン糸６だけが配設され、圧着スリーブ４１、４２等が背面側に設けられるため、帯状基材２の加熱面側の平坦化を図り、加温する配管への密着性を高められる。   The heating wire 3 meanders to the heating surface side of the belt-like substrate 2 shown in FIG. 4A and is arranged over both ends of the belt-like substrate 2, and as shown in FIG. It is sewn to the material 2. The heating wire 3 is preferably made of, for example, a stainless steel fiber, but can be formed of an appropriate material that functions as a heating wire when energized and has flexibility or flexibility. The sewing thread 6 is preferably made of, for example, a fluorine fiber, but can be made of an appropriate material having heat resistance, and is preferably made of the same material as that of the belt-like substrate 2. The sewing with the sewing thread 6 can be performed using an industrial sewing machine. By sewing with the sewing thread 6 at a predetermined sewing pitch, the heating wire 5 can be prevented from stretching and moving during heat generation. The sewing pitch by the sewing thread 6 is preferably about 2 mm to 5 mm, for example, from the viewpoint of flexibility. As will be described later, since only the heating wire 5 and the sewing thread 6 are provided on the heating surface side of the belt-like base material 2 and the crimping sleeves 41 and 42 are provided on the back surface side, Flattening can be achieved, and adhesion to the piping to be heated can be improved.

電力線４は、図２及び図３に示すように、帯状基材２の底面側に於いて、帯状基材２の長手方向に沿って端部にそれぞれ配設され、帯状基材２の折り返された折り返し部２１で大部分を被覆される。折り返された折り返し部２１はその先端領域を接着等により帯状基材２に固着され、電力線４を動かないように保持すると共に、電力線４を絶縁保護している。電力線４には、例えば屈曲性のよい平編み線或いは可撓撚線等とすることが好ましいが、絶縁チューブによる被覆がある或いはない適宜のものを用いることが可能である。電力線４の一方の端部には雄型のコネクタ５ａ、５ｂがそれぞれ設けられ、電力線４の他方の端部には圧着スリーブ４１を介して雌型のコネクタ５ｃ、５ｄがそれぞれ設けられている。   As shown in FIGS. 2 and 3, the power lines 4 are respectively arranged at the end portions along the longitudinal direction of the band-shaped substrate 2 on the bottom surface side of the band-shaped substrate 2, and the band-shaped substrate 2 is folded back. Mostly covered with the folded portion 21. The folded portion 21 that is folded back is fixed to the belt-like base material 2 by adhesion or the like, holds the power line 4 so as not to move, and protects the power line 4 from insulation. The power line 4 is preferably, for example, a flat knitted wire or a flexible twisted wire with good flexibility, but it is possible to use an appropriate one with or without a coating with an insulating tube. Male connectors 5 a and 5 b are provided at one end of the power line 4, and female connectors 5 c and 5 d are provided at the other end of the power line 4 via a crimp sleeve 41, respectively.

発熱線３の一方の端部は、図１〜図３及び図５の上側に位置する一方の電力線４の圧着スリーブ４１に帯状基材２を貫通して導かれ、発熱線３の一方の端部と一方の電力線４とが圧着スリーブ４１で通電可能に接続されている。発熱線３の他方の端部は圧着スリーブ４２に帯状基材２を貫通して導かれており、同様に圧着スリーブ４２に導かれるサーモスイッチ４３の一方の端部と圧着スリーブ４２で通電可能に接続されている。サーモスイッチ４３の他方の端部は、図１〜図３及び図５の下側に位置する他方の電力線４の圧着スリーブ４１に導かれ、サーモスイッチ４３と他方の電力線４とが圧着スリーブ４１で通電可能に接続されている。換言すれば、発熱線３の他方の端部と他方の電力線４とが圧着スリーブ４２、サーモスイッチ４３、圧着スリーブ４１を介して通電可能に接続されている。尚、圧着スリーブ４１、４２は、帯状基材２の底面側（非加熱面側）に設けられている。   One end of the heating wire 3 is guided through the belt-like substrate 2 to the crimp sleeve 41 of one power line 4 located on the upper side of FIGS. 1 to 3 and 5, and one end of the heating wire 3. The power line 4 and the power line 4 are connected to each other by a crimping sleeve 41 so as to be energized. The other end of the heating wire 3 is guided through the band-shaped substrate 2 to the crimping sleeve 42, and similarly, one end of the thermo switch 43 led to the crimping sleeve 42 and the crimping sleeve 42 can be energized. It is connected. The other end of the thermo switch 43 is guided to the crimp sleeve 41 of the other power line 4 located on the lower side of FIGS. 1 to 3 and 5, and the thermo switch 43 and the other power line 4 are connected to the crimp sleeve 41. It is connected so that it can be energized. In other words, the other end of the heating wire 3 and the other power line 4 are connected via the crimping sleeve 42, the thermo switch 43, and the crimping sleeve 41 so that energization is possible. The crimp sleeves 41 and 42 are provided on the bottom surface side (non-heated surface side) of the belt-like substrate 2.

サーモスイッチ４３は、帯状基材２の非加熱面側に配置され、例えば１３０〜１７０℃、好ましくは１５０℃の設定温度になるとＯＦＦ状態となって前記他方の電力線４と発熱線３の通電を遮断するようになっており、発熱線３の異常加熱を防止し安全性を確保可能になっている。サーモスイッチ４３は、帯状基材２の被加熱面側である底面側に設けられるが、帯状基材２が十分に薄いため、異常加熱時の温度の探知に支障を生ずることがない。   The thermo switch 43 is disposed on the non-heated surface side of the belt-like base material 2 and is turned off when the set temperature reaches, for example, 130 to 170 ° C., preferably 150 ° C., and the other power line 4 and the heating wire 3 are energized. It is designed to cut off, and abnormal heating of the heating wire 3 can be prevented to ensure safety. The thermo switch 43 is provided on the bottom surface side that is the heated surface side of the belt-like base material 2, but the belt-like base material 2 is sufficiently thin so that it does not hinder the temperature detection during abnormal heating.

発熱線３及び電力線４が設けられた帯状基材２は、袋状の被覆材７で全体に亘って被覆され、被覆材７は帯状基材２に工業用ミシンで縫い込まれる。被覆材７による被覆は、帯状基材２の被加熱面側に断熱材を設ける等、他の部材を設けた上で行うことも可能であるが、本例では前記断熱材等を介さずに、前記帯状基材２が被覆材７で直接被覆されている。被覆材７は、例えばＰＴＦＥ等のフッ素系樹脂とすると好適であるが、絶縁性、耐熱性及び可撓性を有する適宜の素材で形成することが可能であり、又、その厚さは０．２５〜２ｍｍ程度とすることが強度的に好ましい。また、前記縫いピッチは２〜７ｍｍ程度とすることが好ましく、又、そのミシン糸の素材はフッ素系繊維など適宜である。電力線４と接続されるコネクタ５ａ、５ｂのリード線及びコネクタ５ｃ、５ｄのリード線は、被覆材５の背面側に形成された貫通孔から外側に導出される。   The belt-like base material 2 provided with the heating wire 3 and the power line 4 is entirely covered with a bag-like covering material 7, and the covering material 7 is sewn into the belt-like base material 2 with an industrial sewing machine. The covering with the covering material 7 can be performed after providing other members such as providing a heat insulating material on the heated surface side of the belt-like base material 2, but in this example, without using the heat insulating material or the like. The belt-like substrate 2 is directly covered with the covering material 7. The covering material 7 is preferably made of a fluorine-based resin such as PTFE, but can be formed of an appropriate material having insulating properties, heat resistance, and flexibility. The strength is preferably about 25 to 2 mm. The sewing pitch is preferably about 2 to 7 mm, and the material of the sewing thread is appropriate such as fluorine-based fibers. The lead wires of the connectors 5a and 5b connected to the power line 4 and the lead wires of the connectors 5c and 5d are led out from through holes formed on the back side of the covering material 5.

複数のテープヒーター１を接続してテープヒーター構造を構成する場合には、図１（ｂ）に示すように、第１のテープヒーター１の雌型のコネクタ５ｃ、５ｄに、第２のテープヒーター１の雄型のコネクタ５ａ、５ｂをそれぞれ挿入し、第１のテープヒーター１のリード線４と第２のテープヒーター１のリード線４を通電可能に接続する。同様に、その他のテープヒーター１もコネクタ５ａ、５ｂとコネクタ５ｃ、５ｄを相互に連結して接続し、例えば図６のように、５個のテープヒーター１を継ぎ足して接続する。前記接続により、各テープヒーター１の発熱線５は並列に接続される。更に、前記接続される各テープヒーター１に於いて、各々の発熱線５の抵抗値は同一に設定されており、リード線４への電力供給時には各発熱線５は略同一温度で発熱するようになっている。   When a tape heater structure is configured by connecting a plurality of tape heaters 1, the second tape heater is connected to the female connectors 5 c and 5 d of the first tape heater 1 as shown in FIG. One male connector 5a, 5b is inserted, and the lead wire 4 of the 1st tape heater 1 and the lead wire 4 of the 2nd tape heater 1 are connected so that electricity supply is possible. Similarly, the other tape heaters 1 are connected by connecting the connectors 5a and 5b and the connectors 5c and 5d to each other. For example, as shown in FIG. 6, five tape heaters 1 are added and connected. With the connection, the heating wires 5 of the tape heaters 1 are connected in parallel. Furthermore, in each of the tape heaters 1 connected, the resistance value of each heating wire 5 is set to be the same, and when the power is supplied to the lead wire 4, each heating wire 5 generates heat at substantially the same temperature. It has become.

次いで、電力供給及びその制御を行う電力コントローラ８を設け、電力コントローラ８のコネクタ８１ａ、８１ｂを一方の端部に位置するテープヒーター１のコネクタ５ａ、５ｂに挿入して連結する。更に、電力コントローラ８には接続線を介して熱電対等の温度センサ８２が設けられている。   Next, a power controller 8 for supplying and controlling power is provided, and connectors 81a and 81b of the power controller 8 are inserted and connected to connectors 5a and 5b of the tape heater 1 located at one end. Further, the power controller 8 is provided with a temperature sensor 82 such as a thermocouple via a connection line.

前記テープヒーター構造を加温する配管に設置する際には、テープヒーター１の長手方向を配管の延びる方向に揃え、加熱面を内側にして円筒状に配管に巻き付け、配管全体を挟み込むクリップで、テープヒーター１が巻き付けられた状態の配管を挟み込むことにより、テープヒーター１を配管に取り付ける。前記クリップは、配管或いはテープヒーター構造の長手方向の所要間隔毎に設置する。また、前記一方の端部のテープヒーター１など、任意の一つのテープヒーター１を配管に設置する際には、テープヒーター１の被覆材７の加熱面と配管との間に温度センサ８２を挟み込み、その状態でテープヒーター１を配管に巻き付け、前記クリップで取り付ける。   When installing the tape heater structure in a pipe for heating, the clip heater 1 is aligned with the longitudinal direction of the tape heater 1 in the direction in which the pipe extends, wound around the pipe in a cylindrical shape with the heating surface inside, and sandwiches the entire pipe. The tape heater 1 is attached to the pipe by sandwiching the pipe around which the tape heater 1 is wound. The said clip is installed for every required space | interval of the longitudinal direction of piping or a tape heater structure. Further, when an arbitrary tape heater 1 such as the tape heater 1 at the one end is installed in the pipe, a temperature sensor 82 is sandwiched between the heating surface of the covering material 7 of the tape heater 1 and the pipe. In this state, the tape heater 1 is wound around the pipe and attached with the clip.

そして、電力コントローラ８から所定電圧の電力を接続されたリード線４に供給すると、並列接続された各テープヒーター１の発熱線５に同一電圧が印加され、同一抵抗値の各発熱線５は略同一温度で発熱し、配管５を加温する。また、電力コントローラ８は、温度センサ８２で検出される検出温度を取り込み、前記検出温度に基づき手動で電力を調整し、加熱温度を調整することが可能である。尚、電力コントローラ８の記憶部に、温度調整制御プログラムと、検出温度と電力値の対応関係を示すデータテーブル等を記憶し、電力コントローラ８の制御部が、前記温度調整制御プログラムに従い、温度センサ８２から取り込む検出温度に応じて、前記データテーブルを参照し、供給電力の電力値を調整する構成とし、自動化してもよい。   When power of a predetermined voltage is supplied from the power controller 8 to the connected lead wires 4, the same voltage is applied to the heating wires 5 of the tape heaters 1 connected in parallel, and the heating wires 5 having the same resistance value are substantially omitted. Heat is generated at the same temperature, and the pipe 5 is heated. Further, the power controller 8 can take in the detected temperature detected by the temperature sensor 82, adjust the power manually based on the detected temperature, and adjust the heating temperature. The storage unit of the power controller 8 stores a temperature adjustment control program, a data table indicating the correspondence relationship between the detected temperature and the power value, and the control unit of the power controller 8 follows the temperature adjustment control program. The data table may be referred to according to the detected temperature fetched from 82, and the power value of the supplied power may be adjusted and automated.

上記実施形態のテープヒーター１及びテープヒーター構造は、テープヒーター１相互をコネクタ５ａ〜５ｄを介して導通接続し、一方の端部のテープヒーター１に供給される電力を接続された他のテープヒーター１に供給することが可能であり、テープヒーター毎の電源ケーブルの引き回しを不要とし、設置作業の労力低減、設置コストの低減及び設置場所の安全性の向上を図ることができる。また、テープヒーター１は被覆材７を帯状基材２に直接被覆する極めて薄いものであり、嵩張らず保管や設置作業が容易である。更に、配管の長手方向に沿わせて配管の周囲に円筒状に巻き付けることが可能であり、少数のテープヒーターでより長い配管領域を加温することができる。   In the tape heater 1 and the tape heater structure of the above embodiment, the tape heaters 1 are connected to each other via the connectors 5a to 5d, and the other tape heaters connected to the power supplied to the tape heater 1 at one end are connected. 1 can be supplied, and it is not necessary to route the power cable for each tape heater, so that it is possible to reduce the labor of the installation work, reduce the installation cost, and improve the safety of the installation location. Moreover, the tape heater 1 is an extremely thin one that directly covers the covering material 7 on the belt-like base material 2, and is easy to store and install without being bulky. Furthermore, it can be wound around the pipe in a cylindrical shape along the longitudinal direction of the pipe, and a longer pipe area can be heated with a small number of tape heaters.

また、複数のテープヒーター１を並列に接続することにより、テープヒーター構造の温度制御が極めて容易となる。更に、発熱線５の抵抗値を略同一とし、テープヒーター１を設置した領域全体に亘って配管を略均一温度で加温することができる。また、複数のテープヒーター１に対して１つのテープヒーター１に温度センサ８２を設けることにより、温度センサ８２の設置個数を低減し、コスト低減を図ることができる。   Further, by connecting a plurality of tape heaters 1 in parallel, temperature control of the tape heater structure becomes extremely easy. Furthermore, the resistance value of the heating wire 5 can be made substantially the same, and the pipe can be heated at a substantially uniform temperature over the entire region where the tape heater 1 is installed. Further, by providing the temperature sensor 82 for one tape heater 1 for a plurality of tape heaters 1, the number of the temperature sensors 82 to be installed can be reduced and the cost can be reduced.

本発明は、例えば半導体製造工程に於けるガスの供給用又は排出用の配管を加熱するヒーターとして利用することができる。   The present invention can be used, for example, as a heater for heating a gas supply or discharge pipe in a semiconductor manufacturing process.

（ａ）は実施形態のテープヒーターの底面図、（ｂ）は同図（ａ）のテープヒーターを同一構成の他のテープヒーターと接続した状態を示す底面図。(A) is a bottom view of the tape heater of embodiment, (b) is a bottom view which shows the state which connected the tape heater of the same figure (a) with the other tape heater of the same structure. 図１のテープヒーターの帯状基材を示す底面図。The bottom view which shows the strip | belt-shaped base material of the tape heater of FIG. 図２の帯状基材の端部を示す部分底面図。The partial bottom view which shows the edge part of the strip | belt-shaped base material of FIG. （ａ）は帯状基材に発熱線が縫い付けられた状態を示す平面図、（ｂ）は同図（ａ）の底面図。(A) is a top view which shows the state by which the exothermic line was sewed on the strip | belt-shaped base material, (b) is a bottom view of the figure (a). 実施形態のテープヒーターの回路構成図。The circuit block diagram of the tape heater of embodiment. 実施形態のテープヒーターの複数を接続した状態に於ける回路構成図。The circuit block diagram in the state which connected the some of the tape heater of embodiment.

符号の説明Explanation of symbols

１…テープヒーター ２…帯状基材 ２１…折り返し部 ３…発熱線 ４…電力線 ４１、４２…圧着スリーブ ４３…サーモスイッチ ５ａ〜５ｄ…コネクタ ６…ミシン糸 ７…被覆材 ８…電力コントローラ ８１ａ、８１ｂ…コネクタ ８２…温度センサ DESCRIPTION OF SYMBOLS 1 ... Tape heater 2 ... Strip | belt-shaped base material 21 ... Folding part 3 ... Heat generation line 4 ... Power line 41, 42 ... Crimp sleeve 43 ... Thermo switch 5a-5d ... Connector 6 ... Sewing thread 7 ... Cover material 8 ... Electric power controller 81a, 81b ... Connector 82 ... Temperature sensor

Claims (5)

絶縁性、耐熱性及び可撓性を有する帯状基材と、
前記帯状基材の一方面に設けられる発熱線と、
前記帯状基材の他方面に長手方向に沿って設けられ、前記発熱線に電流を供給する一対の電力線と、
前記一対の電力線の両端部に設けられるコネクタとを備え、
前記発熱線は、前記帯状基材の一方面に、この帯状基材と同一の素材で形成されたミシン糸により所定縫いピッチで縫いつけられ、その一端部が該帯状基材を貫通して前記一対の電力線の一方に接続され、その他端部が該帯状基材を貫通して前記一対の電力線の他方に接続され、
前記帯状基材の一方面の加熱面側には前記発熱線及び前記発熱線を帯状基材に縫い付けるミシン糸だけが設けられていることを特徴とするテープヒーター。 A strip-shaped substrate having insulation, heat resistance and flexibility;
A heating wire provided on one surface of the belt-shaped substrate;
A pair of power lines that are provided along the longitudinal direction on the other surface of the belt-shaped substrate, and supply current to the heating lines;
E Bei a connector provided at both end portions of said pair of power lines,
The heating wire is sewn on one surface of the belt-like base material at a predetermined sewing pitch by a sewing thread formed of the same material as the belt-like base material, and one end portion thereof penetrates the belt-like base material and Is connected to one of the power lines, and the other end is connected to the other of the pair of power lines through the band-shaped substrate,
The tape heater according to claim 1, wherein only one sewing thread for sewing the heating wire and the heating wire to the belt-like base material is provided on the heating surface side of one surface of the belt-like base material . 設定温度の検出に応じて前記発熱線と前記電力線との間の通電を遮断するサーモスイッチを前記帯状基材の他方面である非加熱面側に設け、
前記電力線は、屈曲性のよい平編み線或いは可撓撚線であり、さらに、前記帯状基材の他方面側に於いて、該帯状基材の長手方向に沿って端部にそれぞれ配設され、該帯状基材の折り返された折り返し部で被覆されることにより該帯状基材に保持され、
絶縁性、耐熱性及び可撓性を有する被覆材を前記帯状基材に直接被覆することを特徴とする請求項１に記載のテープヒーター。 A thermo switch for interrupting energization between the heating wire and the power wire in response to detection of a set temperature is provided on the non-heating surface side which is the other surface of the belt-shaped substrate,
The power line is a flat knitted wire or a flexible twisted wire with good flexibility, and is disposed on the other side of the belt-like base material at the end along the longitudinal direction of the belt-like base material. , By being covered with the folded back portion of the belt-like substrate, is held on the belt-like substrate,
The tape heater according to claim 1, wherein a coating material having insulating properties, heat resistance, and flexibility is directly coated on the belt-shaped substrate . 絶縁性、耐熱性及び可撓性を有する帯状基材と、
前記帯状基材上の一方面に設けられる発熱線と、
前記帯状基材の他方面に長手方向に沿って設けられ、前記発熱線に電流を供給する一対の電力線と、
前記一対の電力線の両端部に設けられるコネクタとを備える第１テープヒーターと第２テープヒーターとを有し、
前記発熱線は、前記帯状基材の一方面に、この帯状基材と同一の素材で形成されたミシン糸により所定縫いピッチで縫いつけられ、その一端部が該帯状基材を貫通して前記一対の電力線の一方に接続され、その他端部が該帯状基材を貫通して前記一対の電力線の他方に接続され、
前記帯状基材の一方面の加熱面側には前記発熱線及び前記発熱線を帯状基材に縫い付けるミシン糸だけが設けられており、
前記第２テープヒーターの一端部のコネクタと前記第１テープヒーターの他端部のコネクタとを接続して、前記第１テープヒーターの発熱線と前記第２テープヒーターの発熱線とを並列に接続し、
前記第１テープヒーターが、一端部のコネクタから供給される電源を前記電力線を介して前記他端部のコネクタに導き、前記他端部のコネクタから前記第２テープヒーターの前記一端部のコネクタに導出することを特徴とするテープヒーター構造。 A strip-shaped substrate having insulation, heat resistance and flexibility;
A heating wire provided on one surface of the belt-like substrate;
A pair of power lines that are provided along the longitudinal direction on the other surface of the belt-shaped substrate, and supply current to the heating lines;
A first tape heater and a second tape heater provided with connectors provided at both ends of the pair of power lines;
The heating wire is sewn on one surface of the belt-like base material at a predetermined sewing pitch by a sewing thread formed of the same material as the belt-like base material, and one end portion thereof penetrates the belt-like base material and Is connected to one of the power lines, and the other end is connected to the other of the pair of power lines through the band-shaped substrate,
On the heating surface side of one surface of the belt-shaped base material, only the sewing wire that sews the heat generating wire and the heat generating wire to the belt-shaped base material is provided,
A connector at one end of the second tape heater and a connector at the other end of the first tape heater are connected, and the heating wire of the first tape heater and the heating wire of the second tape heater are connected in parallel. And
The first tape heater guides power supplied from a connector at one end to the connector at the other end via the power line, and from the connector at the other end to the connector at the one end of the second tape heater. Tape heater structure characterized by being derived. 前記第１テープヒーターの発熱線の抵抗値と前記第２テープヒーターの発熱線の抵抗値を略同一とすることを特徴とする請求項３記載のテープヒーター構造。   4. The tape heater structure according to claim 3, wherein the resistance value of the heating wire of the first tape heater and the resistance value of the heating wire of the second tape heater are substantially the same. 前記第１テープヒーターと前記第２テープヒーターの何れか一方にのみ温度制御用の温度センサを設けることを特徴とする請求項４記載のテープヒーター構造。   5. The tape heater structure according to claim 4, wherein a temperature sensor for temperature control is provided only in one of the first tape heater and the second tape heater.
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