JPH1140328A - Ptc surfaced heating element - Google Patents

Ptc surfaced heating element

Info

Publication number
JPH1140328A
JPH1140328A JP9191048A JP19104897A JPH1140328A JP H1140328 A JPH1140328 A JP H1140328A JP 9191048 A JP9191048 A JP 9191048A JP 19104897 A JP19104897 A JP 19104897A JP H1140328 A JPH1140328 A JP H1140328A
Authority
JP
Japan
Prior art keywords
heating element
ptc
electrode layer
layer
ptc heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9191048A
Other languages
Japanese (ja)
Inventor
Toshio Kudo
敏夫 工藤
Takasada Mitsui
孝禎 三ツ井
Takahiro Kariya
隆広 假屋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Cable Industries Ltd
Original Assignee
Mitsubishi Cable Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP9191048A priority Critical patent/JPH1140328A/en
Publication of JPH1140328A publication Critical patent/JPH1140328A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

PROBLEM TO BE SOLVED: To use power source of high voltage stably by forming an electrode layer respectively on PTC heating element layers separately-formed at a plurality of areas on an insulating base material, and providing an intermediate electrode layer for bridging two PTC heating element layers at equal intervals as the respective electrode layers. SOLUTION: PTC heating element layers 3, 3, are formed on a insulating film 2, for example, which are separated at two positions and meet the power source voltage of 100 V. The first and second electrode layers 4, 5 consisting of a plurality of comb-teeth shaped pattern are formed, which extend from a main pattern at equal intervals facing each other to the right and left. An intermediate electrode layer 6 is formed, which consists of the main pattern formed along a slot 2a at a part where the PTC heating element layer 3 is not formed in the central part of the insulating film 2, and the comb-teeth shaped pattern extending to the right and left from it at equal intervals between the respective comb-teeth patterns of the electrode layers 4, 5. It is thus possible to obtain a PTC surfaced heating element 1 which can be used by applying high voltage of 200 V to the electrode layers 4, 5 from a power source 8.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、床暖房や壁面から
の暖房等に用いるＰＴＣ面状発熱体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PTC planar heating element used for floor heating or wall heating.

【０００２】[0002]

【従来の技術】従来のＰＴＣ面状発熱体１３は、図４に
示すように、ポリエステル（ＰＥＴ）等の絶縁性フィル
ム２上にＰＴＣ発熱体層３を形成すると共に、このＰＴ
Ｃ発熱体層３上に第１電極層４と第２電極層５をパター
ン形成したものであった。ＰＴＣ発熱体層３は、ＰＴＣ
インキをスクリーン印刷によって絶縁性フィルム２上に
被膜形成したものである。ＰＴＣインキは、バインダー
となる樹脂マトリクス中にカーボンや熱半導体を分散さ
せてＰＴＣ（[Positive Temperature Coefficient]正温
度係数）特性を持たせた導電性インキであり、通電によ
って発熱すると温度上昇に伴って抵抗値も上昇するの
で、外部の温度制御機器を用いなくても自動的に一定温
度を維持することができる自己温度制御機能を備えてい
る。第１電極層４と第２電極層５は、それぞれこのＰＴ
Ｃ発熱体層３上に櫛歯状にパターン形成された良導電性
の電極層であり、各櫛歯状パターンが互いにほぼ等間隔
となるように配置されている。また、これらの第１電極
層４と第２電極層５は、それぞれの端末部がリード線７
を介して電源８に接続されている。従って、第１電極層
４と第２電極層５の各櫛歯状パターン間のＰＴＣ発熱体
層３には、それぞれこの電源８の電圧が印加されて通電
される。そして、この通電によって面状のＰＴＣ発熱体
層３を一定温度で発熱させることができる。2. Description of the Related Art As shown in FIG. 4, a conventional PTC planar heating element 13 has a PTC heating element layer 3 formed on an insulating film 2 made of polyester (PET) or the like.
The first electrode layer 4 and the second electrode layer 5 were pattern-formed on the C heating element layer 3. The PTC heating element layer 3 is made of PTC
The ink is formed on the insulating film 2 by screen printing. PTC ink is a conductive ink that has PTC ([Positive Temperature Coefficient]) characteristics by dispersing carbon and thermal semiconductor in a resin matrix that serves as a binder. Since the resistance value also increases, a self-temperature control function capable of automatically maintaining a constant temperature without using an external temperature control device is provided. The first electrode layer 4 and the second electrode layer 5 are respectively formed by the PT
It is a highly conductive electrode layer formed in a comb-like pattern on the C heating element layer 3, and the comb-like patterns are arranged at substantially equal intervals. Each of the first electrode layer 4 and the second electrode layer 5 has a lead wire 7.
Is connected to the power supply 8 via the. Therefore, the voltage of the power source 8 is applied to the PTC heating element layer 3 between the comb-shaped patterns of the first electrode layer 4 and the second electrode layer 5 to conduct electricity. By this energization, the planar PTC heating element layer 3 can be heated at a constant temperature.

【０００３】上記ＰＴＣ発熱体層３は、電源８の電圧に
応じて、ＰＴＣインキのカーボンや熱半導体等の組成を
変える必要がある。また、第１電極層４と第２電極層５
の各櫛歯状部分の間隔も、この電圧に応じた距離に設定
する必要がある。そして、従来は、１２Ｖ，２４Ｖ及び
１００Ｖの電源８に対応した組成のＰＴＣインキが実用
化されていた。In the PTC heating element layer 3, it is necessary to change the composition of the PTC ink such as carbon and thermal semiconductor in accordance with the voltage of the power supply 8. Further, the first electrode layer 4 and the second electrode layer 5
It is necessary to set the distance between the respective comb-tooth-shaped portions to a distance corresponding to this voltage. Conventionally, PTC inks having compositions corresponding to the power supply 8 of 12V, 24V and 100V have been put to practical use.

【０００４】[0004]

【発明が解決しようとする課題】ところが、上記ＰＴＣ
面状発熱体１３を床暖房や壁面からの暖房に用いる場合
には、比較的大きな電力を消費するので、単相３線式で
給電される２００Ｖの電源８を使用したいという要望が
ある。しかし、このような高圧を印加すると、ＰＴＣ発
熱体層３のＰＴＣ特性が不安定になり易く、過熱や熱暴
走を引き起こすおそれもあるので、２００Ｖの電源８に
対応した組成のＰＴＣインキを安定供給することは困難
である。このため、従来のＰＴＣ面状発熱体１３は、１
００Ｖ以下の比較的低電圧の電源８でしか用いることが
できないという問題があった。However, the above-mentioned PTC
When the planar heating element 13 is used for floor heating or heating from a wall surface, a relatively large amount of power is consumed. Therefore, there is a demand to use a 200 V power supply 8 supplied with a single-phase three-wire system. However, when such a high pressure is applied, the PTC characteristics of the PTC heating element layer 3 are likely to be unstable, which may cause overheating or thermal runaway. It is difficult to do. For this reason, the conventional PTC planar heating element 13 is
There is a problem that it can be used only with a power supply 8 having a relatively low voltage of 00 V or less.

【０００５】本発明は、かかる事情に鑑みてなされたも
のであり、ＰＴＣ発熱体層を複数の領域に分離して形成
し、各領域のＰＴＣ発熱体層を中間電極層を介して直列
接続することにより、高圧の電源を使用可能にすること
ができるＰＴＣ面状発熱体を提供することを目的として
いる。The present invention has been made in view of the above circumstances, and forms a PTC heating element layer in a plurality of regions, and connects the PTC heating element layers in each region in series via an intermediate electrode layer. Accordingly, it is an object of the present invention to provide a PTC planar heating element that can use a high-voltage power supply.

【０００６】[0006]

【課題を解決するための手段】即ち、本発明のＰＴＣ面
状発熱体は、上記課題を解決するために、面状の絶縁
基材上に複数の領域に分離して形成されたＰＴＣ発熱体
層と、いずれかのＰＴＣ発熱体層の領域上にパターン形
成された第１電極層と、この第１電極層が形成された領
域以外のＰＴＣ発熱体層の領域上にパターン形成された
第２電極層と、それぞれ電極層が１つだけ形成された２
箇所のＰＴＣ発熱体層の領域を架け渡すように形成さ
れ、双方のＰＴＣ発熱体層の領域上において、それぞれ
その領域上の電極層のパターンに対しほぼ等間隔となる
ようにパターン形成された中間電極層とを備えたことを
特徴とする。That is, in order to solve the above problems, a PTC planar heating element of the present invention is a PTC heating element formed on a planar insulating substrate and divided into a plurality of regions. A first electrode layer patterned on a region of any of the PTC heating element layers, and a second electrode layer patterned on a region of the PTC heating element layer other than the region where the first electrode layer is formed. An electrode layer and two electrode layers each having only one electrode layer.
An intermediate portion which is formed so as to bridge the area of the PTC heating element layer at a location, and is formed on both the areas of the PTC heating element layer so as to be substantially equidistant from the pattern of the electrode layer on each of the areas. And an electrode layer.

【０００７】の手段によれば、いずれかのＰＴＣ発熱
体層の領域上で第１電極層と中間電極層が対向する。ま
た、別のＰＴＣ発熱体層の領域上では、この中間電極層
と他の中間電極層とが対向し、順次各ＰＴＣ発熱体層の
領域上で、２つの中間電極層が対向する。そして、最後
のＰＴＣ発熱体層の領域上では、最後の中間電極層と第
２電極層が対向する。従って、各領域のＰＴＣ発熱体層
は、これらの中間電極層を介して順次直列に接続される
ので、第１電極層と第２電極層の間に印加される電源電
圧を各領域のＰＴＣ発熱体層で分圧することができ、低
圧用のＰＴＣ発熱体層を用いているにもかかわらず、こ
れの整数倍の高圧の電源を使用することができるように
なる。なお、ここで単に電極層という場合には、第１電
極層、第２電極層又は中間電極層のいずれかを意味す
る。According to the means, the first electrode layer and the intermediate electrode layer face each other on the region of any of the PTC heating element layers. Further, on the region of another PTC heating element layer, this intermediate electrode layer and another intermediate electrode layer face each other, and two intermediate electrode layers sequentially face each other on the region of each PTC heating element layer. Then, on the region of the last PTC heating element layer, the last intermediate electrode layer and the second electrode layer face each other. Therefore, the PTC heating element layers in each region are sequentially connected in series via these intermediate electrode layers, so that the power supply voltage applied between the first electrode layer and the second electrode layer is reduced by the PTC heat generation in each region. The voltage can be divided by the body layer, and a high-voltage power supply that is an integral multiple of this can be used despite the use of a low-pressure PTC heating element layer. Here, the term “electrode layer” simply means any one of the first electrode layer, the second electrode layer, and the intermediate electrode layer.

【０００８】また、前記のＰＴＣ発熱体層が絶縁基
材上に２箇所の領域に分離して形成されると共に、前記
第１電極層が一方のＰＴＣ発熱体層の領域上に形成さ
れ、前記第２電極層が他方のＰＴＣ発熱体層の領域上に
形成され、前記中間電極層がこれら一方と他方のＰＴＣ
発熱体層の領域を架け渡すように形成されたものである
ことを特徴とする。The PTC heating element layer is formed on the insulating substrate in two separate areas, and the first electrode layer is formed on one PTC heating element layer. A second electrode layer is formed on the area of the other PTC heating element layer, and the intermediate electrode layer is formed on the one PTC heating element layer and the other PTC heating element layer.
It is characterized in that it is formed so as to bridge the area of the heating element layer.

【０００９】の手段は、においてＰＴＣ発熱体層が
２箇所の領域にのみ分離して形成される場合を示すもの
であり、この場合には、１つの中間電極層のみがこれら
２箇所のＰＴＣ発熱体層の領域を架け渡すように形成さ
れる。このように２箇所のＰＴＣ発熱体層の領域が１つ
の中間電極層を介して直列接続されると、各ＰＴＣ発熱
体層に印加する電圧の２倍の電圧を電源から供給するこ
とができるようになる。The above means shows that the PTC heating element layer is formed separately in only two regions in this case, and in this case, only one intermediate electrode layer forms the PTC heating element layer in these two regions. It is formed so as to bridge the region of the body layer. When the two regions of the PTC heating element layer are connected in series via one intermediate electrode layer in this manner, a voltage twice as large as the voltage applied to each PTC heating element layer can be supplied from the power supply. become.

【００１０】さらに、前記の各電極層が、ＰＴＣ発
熱体層の領域上で、もう一方の電極層と互いにほぼ等間
隔で噛み合うように櫛歯状にパターン形成されたもので
あることを特徴とする。Further, each of the electrode layers is formed in a comb-like pattern so as to mesh with the other electrode layer at substantially equal intervals on the region of the PTC heating element layer. I do.

【００１１】の手段によれば、２つの電極層がＰＴＣ
発熱体層の領域上で櫛歯状に噛み合ってパターン形成さ
れるので、広い面積のＰＴＣ発熱体層を比較的狭い所定
間隔ごとに分割して効率良く通電することができるよう
になる。According to the means, the two electrode layers are made of PTC.
Since the pattern is formed by meshing in a comb-like manner on the region of the heating element layer, the PTC heating element layer having a large area can be divided at relatively small predetermined intervals to efficiently conduct electricity.

【００１２】[0012]

【発明の実施の形態】以下、本発明の実施形態について
図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００１３】図１〜図３は本発明の一実施形態を示すも
のであって、図１はＰＴＣ面状発熱体の絶縁性フィルム
上に形成されるＰＴＣ発熱体層と電極層の構成を示す平
面図、図２はＰＴＣ面状発熱体の構造を示す斜視図、図
３は従来のＰＴＣ面状発熱体を用いた等価回路を示す平
面図である。なお、図４に示した従来例と同様の機能を
有する構成部材には同じ番号を付記する。FIGS. 1 to 3 show an embodiment of the present invention. FIG. 1 shows the structure of a PTC heating element layer and an electrode layer formed on an insulating film of a PTC planar heating element. FIG. 2 is a perspective view showing the structure of a PTC planar heating element, and FIG. 3 is a plan view showing an equivalent circuit using a conventional PTC planar heating element. Components having the same functions as those of the conventional example shown in FIG. 4 are denoted by the same reference numerals.

【００１４】本実施形態は、ＰＴＣ発熱体層３を２箇所
の領域に分離して形成したＰＴＣ面状発熱体１について
説明する。このＰＴＣ面状発熱体１は、図１に示すよう
に、絶縁性フィルム２上にＰＴＣ発熱体層３を形成して
いる。絶縁性フィルム２は、縦長の長方形状のポリエス
テルフィルムの中央部に縦に細長いスリット状の長孔２
ａを形成したものである。この長孔２ａは、ＰＴＣ面状
発熱体１の設置時に取り付け位置の突起に嵌合するため
のものであり、他の取り付け方法による場合には必ずし
も設ける必要はない。ＰＴＣ発熱体層３は、この長孔２
ａに沿った中央部にある程度の間隔を開けて、左右２箇
所の領域にそれぞれ分離して形成される。また、これら
のＰＴＣ発熱体層３は、それぞれ絶縁性フィルム２の左
右の端辺部付近にもある程度の隙間を開けて形成され
る。このようなＰＴＣ発熱体層３のパターン形成は、Ｐ
ＴＣインキを絶縁性フィルム２上にスクリーン印刷する
ことにより形成することができる。ＰＴＣインキは、バ
インダーとなるシリコーン樹脂等の樹脂マトリクス中に
カーボンマイクロビーズ等の導電性フィラーを分散させ
てＰＴＣ特性を持たせたものや、これに熱半導体を加え
て温度に対しさらに鋭敏な電気抵抗特性を持たせたもの
を用いる。また、本実施形態では、１００Ｖの電源電圧
に対応した組成のＰＴＣインキを使用する。In this embodiment, a PTC planar heating element 1 formed by separating a PTC heating element layer 3 into two regions will be described. The PTC planar heating element 1 has a PTC heating element layer 3 formed on an insulating film 2 as shown in FIG. The insulating film 2 has a vertically elongated slit-shaped long hole 2 in the center of a vertically elongated rectangular polyester film.
a is formed. The long hole 2a is for fitting to the projection at the mounting position when the PTC planar heating element 1 is installed, and is not necessarily provided when another mounting method is used. The PTC heating element layer 3 includes
It is formed separately from each other in two regions on the left and right, with a certain interval in the center along the line a. These PTC heating element layers 3 are also formed with a certain gap in the vicinity of the left and right edges of the insulating film 2. The pattern formation of the PTC heating element layer 3 is performed by P
It can be formed by screen-printing the TC ink on the insulating film 2. PTC inks are made by dispersing conductive fillers such as carbon microbeads in a resin matrix such as silicone resin as a binder to give PTC characteristics. One having resistance characteristics is used. In the present embodiment, a PTC ink having a composition corresponding to a power supply voltage of 100 V is used.

【００１５】上記ＰＴＣ発熱体層３を形成した絶縁性フ
ィルム２上には、さらに第１電極層４と第２電極層５と
中間電極層６がパターン形成される。これらの電極層４
〜６は、良導電性の銀系塗料等を絶縁性フィルム２上や
ＰＴＣ発熱体層３上にスクリーン印刷することによりパ
ターン形成したものである。なお、ここでは絶縁性フィ
ルム２上にＰＴＣ発熱体層３を成膜した後にこれらの電
極層４〜６をパターン形成する場合について説明する
が、先に電極層４〜６をパターン形成した後にＰＴＣ発
熱体層３を成膜することもできる。On the insulating film 2 on which the PTC heating element layer 3 is formed, a first electrode layer 4, a second electrode layer 5, and an intermediate electrode layer 6 are further pattern-formed. These electrode layers 4
Nos. 6 to 6 are patterns formed by screen-printing a good conductive silver paint or the like on the insulating film 2 or the PTC heating element layer 3. Here, a description will be given of a case where the PTC heating element layer 3 is formed on the insulating film 2 and then the electrode layers 4 to 6 are pattern-formed. The heating element layer 3 can also be formed.

【００１６】第１電極層４は、絶縁性フィルム２の左半
分の周縁部に沿って形成された太い幹線パターンと、Ｐ
ＴＣ発熱体層３が成膜されていない左端辺部に沿ったこ
の幹線パターンから等間隔に右方向に伸びて左側の領域
のＰＴＣ発熱体層３上に重ねて形成された複数本の櫛歯
状パターンとからなる。第２電極層５は、絶縁性フィル
ム２の右半分の周縁部に沿って形成された太い幹線パタ
ーンと、ＰＴＣ発熱体層３が成膜されていない右端辺部
に沿ったこの幹線パターンから等間隔に左方向に伸びて
右側の領域のＰＴＣ発熱体層３上に重ねて形成された複
数本の櫛歯状パターンとからなる。また、これら第１電
極層４と第２電極層５における幹線パターンの下端中央
寄りの部分には、それぞれ端末部が形成されてリード線
７を介し２００Ｖの電源８に接続されている。The first electrode layer 4 includes a thick main line pattern formed along the periphery of the left half of the insulating film 2,
A plurality of comb teeth formed to extend rightward at equal intervals from this main line pattern along the left end side where the TC heating element layer 3 is not formed and overlap the PTC heating element layer 3 in the left area. Pattern. The second electrode layer 5 is formed from a thick main line pattern formed along the peripheral edge of the right half of the insulating film 2 and a main line pattern along the right end side where the PTC heating element layer 3 is not formed. It consists of a plurality of comb-shaped patterns that extend to the left at intervals and are formed on the PTC heating element layer 3 in the area on the right. Terminal portions are formed in the first electrode layer 4 and the second electrode layer 5 near the center of the lower end of the trunk line pattern, respectively, and are connected to a 200 V power supply 8 via a lead wire 7.

【００１７】中間電極層６は、絶縁性フィルム２の中央
部及び長孔２ａの周囲に沿ってＰＴＣ発熱体層３が成膜
されていない部分に形成された太い幹線パターンと、こ
の幹線パターンから左右方向に伸びて左右側の領域のＰ
ＴＣ発熱体層３上にそれぞれ重ねて形成された複数本の
櫛歯状パターンとからなる。また、この中間電極層６の
各櫛歯状パターンは、第１電極層４と第２電極層５の各
櫛歯状パターンの間に等間隔に噛み合うように形成され
る。The intermediate electrode layer 6 is composed of a thick trunk pattern formed in a portion where the PTC heating element layer 3 is not formed along the center of the insulating film 2 and the periphery of the long hole 2a. It extends in the left-right direction and P
It is composed of a plurality of comb-like patterns formed on the TC heating element layer 3 respectively. Further, the respective comb-like patterns of the intermediate electrode layer 6 are formed so as to mesh at equal intervals between the respective comb-like patterns of the first electrode layer 4 and the second electrode layer 5.

【００１８】上記絶縁性フィルム２は、図２に示すよう
に、ＰＴＣ発熱体層３と電極層４〜６を形成した面に、
同形状のポリエステルフィルム９とウレタンフォーム１
０を貼り合わせると共に、裏面に粘着層１１を形成して
セパレータ１２で覆うことによりＰＴＣ面状発熱体１を
完成する。ポリエステルフィルム９はＰＴＣ発熱体層３
や電極層４〜６を絶縁性フィルム２との間で絶縁密閉す
るためのものであり、ウレタンフォーム１０は断熱層で
ある。また、裏面のセパレータ１２を剥がせば、このＰ
ＴＣ面状発熱体１を粘着層１１によって設置位置に貼り
付けて固定することができる。As shown in FIG. 2, the insulating film 2 is provided on the surface on which the PTC heating element layer 3 and the electrode layers 4 to 6 are formed.
Polyester film 9 and urethane foam 1 of the same shape
In addition, the PTC sheet heating element 1 is completed by attaching the adhesive layer 11 on the back surface and covering the back surface with the separator 12. Polyester film 9 is PTC heating element layer 3
And the electrode layers 4 to 6 are insulated and sealed between the insulating film 2 and the insulating layer 2. The urethane foam 10 is a heat insulating layer. If the separator 12 on the back side is peeled off, this P
The TC planar heating element 1 can be attached and fixed to the installation position by the adhesive layer 11.

【００１９】上記構成のＰＴＣ面状発熱体１は、電源８
からの２００Ｖの電圧をリード線７を介して印加する
と、第１電極層４の幹線パターンから各櫛歯状パター
ン、左側の領域のＰＴＣ発熱体層３及び中間電極層６の
左側の各櫛歯状パターンを経て、この中間電極層６の幹
線パターンから右側の各櫛歯状パターン、右側の領域の
ＰＴＣ発熱体層３、第２電極層５の各櫛歯状パターン及
び幹線パターンに至る経路で交流電流が流れる。従っ
て、第１電極層４の各櫛歯状パターンと中間電極層６の
左側の各櫛歯状パターンとの間に配置された左側の領域
のＰＴＣ発熱体層３と、中間電極層６の右側の各櫛歯状
パターンと第２電極層５の各櫛歯状パターンとの間に配
置された右側の領域のＰＴＣ発熱体層３とは、直列に接
続されることになる。即ち、本実施形態のＰＴＣ面状発
熱体１は、図３に示すように、従来の１００Ｖ用のＰＴ
Ｃ面状発熱体１３を２枚直列に接続したものと等価にな
り、電源８から印加される２００Ｖの電圧がこれらのＰ
ＴＣ面状発熱体１３で分圧されてそれぞれ１００Ｖずつ
の電圧が印加されるように、本実施形態のＰＴＣ面状発
熱体１の２箇所のＰＴＣ発熱体層３でもそれぞれ１００
Ｖずつの電圧が印加されることになる。なお、このよう
に従来のＰＴＣ面状発熱体１３をリード線７を用いて直
列接続することもできるが、この場合には、現場での施
工が面倒になり、配線ミス等によるトラブルも起き易く
なる。The PTC sheet heating element 1 having the above-described configuration is provided with a power supply 8
When a voltage of 200 V is applied through the lead wire 7 from the main line pattern of the first electrode layer 4, each of the comb-shaped patterns, the PTC heating element layer 3 in the left region and the respective comb teeth on the left side of the intermediate electrode layer 6 From the trunk pattern of the intermediate electrode layer 6 to the respective comb-teeth patterns on the right side, the PTC heating element layer 3 in the right region, the respective comb-teeth patterns of the second electrode layer 5 and the trunk pattern via the main pattern. AC current flows. Therefore, the PTC heating element layer 3 in the left region arranged between each comb-like pattern of the first electrode layer 4 and each comb-like pattern on the left side of the intermediate electrode layer 6 and the right side of the intermediate electrode layer 6 Is connected in series with the PTC heating element layer 3 in the right region arranged between each comb-shaped pattern of the second electrode layer 5 and each comb-shaped pattern of the second electrode layer 5. That is, as shown in FIG. 3, the PTC planar heating element 1 of the present embodiment is a conventional 100 V PT.
This is equivalent to connecting two C-plane heating elements 13 in series, and the voltage of 200 V applied from the power supply 8
Each of the two PTC heating element layers 3 of the PTC heating element 1 of the present embodiment has a voltage of 100 V so that the voltage is divided by the TC sheet heating element 13 and a voltage of 100 V is applied.
A voltage of V is applied. In this way, the conventional PTC planar heating element 13 can be connected in series using the lead wire 7 in this case. Become.

【００２０】以上説明したように、本実施形態のＰＴＣ
面状発熱体１によれば、絶縁性フィルム２上に２箇所に
分離して成膜したＰＴＣ発熱体層３が中間電極層６を介
して直列に接続されるので、各領域のＰＴＣ発熱体層３
には、電源８の電圧を半分に分圧した電圧が印加される
ようになる。従って、ＰＴＣ発熱体層３には、１００Ｖ
用のものを用いることができるので、さらに高電圧用の
ものを用いることにより安定性や安全性が損なわれるよ
うなことがなく、しかも、単相３線式で給電される２０
０Ｖの電源８を用いることができるので、比較的電力消
費の大きな床暖房用等に用いても、電力の無駄が増加す
るようなことがなくなる。As described above, the PTC of this embodiment
According to the planar heating element 1, the PTC heating elements 3 formed separately on the insulating film 2 at two locations are connected in series via the intermediate electrode layer 6. Layer 3
, A voltage obtained by dividing the voltage of the power supply 8 by half is applied. Therefore, 100 V is applied to the PTC heating element layer 3.
Therefore, the use of a high-voltage power supply does not impair stability and safety, and power is supplied by a single-phase three-wire system.
Since the power supply 8 of 0 V can be used, even when the power supply 8 is used for floor heating or the like which consumes relatively large power, the waste of power does not increase.

【００２１】なお、上記実施形態では、中間電極層６を
外部には接続しない浮いた状態にしていたが、ここにも
端末部を設けて、第１電極層４と第２電極層５との間に
それぞれ１００Ｖの電源を接続すれば、２箇所のＰＴＣ
発熱体層３を並列接続した１００Ｖ用のＰＴＣ面状発熱
体１として使用することもできるようになる。In the above embodiment, the intermediate electrode layer 6 is in a floating state without being connected to the outside. However, a terminal portion is also provided here to allow the first electrode layer 4 and the second electrode layer 5 to be connected to each other. If a 100V power supply is connected between them, two PTCs
The heating element layer 3 can also be used as a 100 V PTC sheet heating element 1 connected in parallel.

【００２２】また、上記実施形態では、各電極層４〜６
にそれぞれ櫛歯状パターンを設けたが、同じ領域のＰＴ
Ｃ発熱体層３上に形成される１対の電極層４〜６のパタ
ーンが互いにほぼ等間隔で向かい合うようになるもので
あれば、これ以外のパターンを用いることも可能であ
る。In the above embodiment, each of the electrode layers 4 to 6
Are provided with a comb-like pattern, respectively, but the PT
Other patterns can be used as long as the patterns of the pair of electrode layers 4 to 6 formed on the C heating element layer 3 face each other at substantially equal intervals.

【００２３】さらに、上記実施形態では、ＰＴＣ発熱体
層３を２箇所に形成したが、これを３箇所以上に分離し
て形成し、中間電極層６もこれらＰＴＣ発熱体層３の間
ごとに２箇所以上設ければ、より高電圧の電源に対応す
ることも可能となる。Further, in the above embodiment, the PTC heating element layer 3 is formed at two places. However, the PTC heating element layer 3 is formed at three or more places, and the intermediate electrode layer 6 is also provided between these PTC heating element layers 3. Providing two or more places makes it possible to support a higher-voltage power supply.

【００２４】[0024]

【発明の効果】以上の説明から明らかなように、本発明
のＰＴＣ面状発熱体によれば、各領域のＰＴＣ発熱体層
が中間電極層を介して順次直列に接続されるので、低圧
用のＰＴＣ発熱体層を用いた場合にも、これの整数倍の
高圧の電源を供給することができるようになる。As is apparent from the above description, according to the PTC planar heating element of the present invention, the PTC heating element layers in each region are connected in series via the intermediate electrode layer in order, so When the PTC heating element layer is used, a high-voltage power of an integral multiple of the PTC heating element layer can be supplied.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一実施形態を示すものであって、ＰＴ
Ｃ面状発熱体の絶縁性フィルム上に形成されるＰＴＣ発
熱体層と電極層の構成を示す平面図である。FIG. 1 illustrates one embodiment of the present invention, wherein a PT
It is a top view showing composition of a PTC heating element layer and an electrode layer formed on an insulating film of a C plane heating element.

【図２】本発明の一実施形態を示すものであって、ＰＴ
Ｃ面状発熱体の構造を示す斜視図である。FIG. 2 illustrates an embodiment of the present invention, wherein PT
It is a perspective view which shows the structure of a C plane heating element.

【図３】本発明の一実施形態を示すものであって、従来
のＰＴＣ面状発熱体を用いた等価回路を示す平面図であ
る。FIG. 3, showing an embodiment of the present invention, is a plan view illustrating an equivalent circuit using a conventional PTC planar heating element.

【図４】従来例を示すものであって、ＰＴＣ面状発熱体
の絶縁性フィルム上に形成されるＰＴＣ発熱体層と電極
層の構成を示す平面図である。FIG. 4 is a plan view showing a conventional example and showing a configuration of a PTC heating element layer and an electrode layer formed on an insulating film of a PTC sheet heating element.

【符号の説明】[Explanation of symbols]

１ ＰＴＣ面状発熱体 ２ 絶縁性フィルム ３ ＰＴＣ発熱体層 ４ 第１電極層 ５ 第２電極層 ６ 中間電極層 REFERENCE SIGNS LIST 1 PTC heating element 2 Insulating film 3 PTC heating element layer 4 First electrode layer 5 Second electrode layer 6 Intermediate electrode layer

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 面状の絶縁基材上に複数の領域に分離し
て形成されたＰＴＣ発熱体層と、 いずれかのＰＴＣ発熱体層の領域上にパターン形成され
た第１電極層と、 この第１電極層が形成された領域以外のＰＴＣ発熱体層
の領域上にパターン形成された第２電極層と、 それぞれ電極層が１つだけ形成された２箇所のＰＴＣ発
熱体層の領域を架け渡すように形成され、双方のＰＴＣ
発熱体層の領域上において、それぞれその領域上の電極
層のパターンに対しほぼ等間隔となるようにパターン形
成された中間電極層とを備えたことを特徴とするＰＴＣ
面状発熱体。1. A PTC heating element layer formed separately on a planar insulating base material in a plurality of regions; a first electrode layer patterned on any of the PTC heating element layer regions; The second electrode layer patterned on the area of the PTC heating element layer other than the area where the first electrode layer is formed, and the areas of the two PTC heating element layers where only one electrode layer is formed, respectively. It is formed to be bridged, and both PTCs
A PTC having an intermediate electrode layer formed on the region of the heating element layer so as to be substantially equidistant from the pattern of the electrode layer on the region.
Sheet heating element. 【請求項２】 前記ＰＴＣ発熱体層が絶縁基材上に２箇
所の領域に分離して形成されると共に、前記第１電極層
が一方のＰＴＣ発熱体層の領域上に形成され、前記第２
電極層が他方のＰＴＣ発熱体層の領域上に形成され、前
記中間電極層がこれら一方と他方のＰＴＣ発熱体層の領
域を架け渡すように形成されたものであることを特徴と
する請求項１に記載のＰＴＣ面状発熱体。2. The PTC heating element layer is formed separately on an insulating base material in two regions, and the first electrode layer is formed on one PTC heating element region. 2
The electrode layer is formed on the area of the other PTC heating element layer, and the intermediate electrode layer is formed so as to bridge over the area of the one PTC heating element layer and the area of the other PTC heating element layer. 2. The PTC planar heating element according to 1. 【請求項３】 前記各電極層が、ＰＴＣ発熱体層の領域
上で、もう一方の電極層と互いにほぼ等間隔で噛み合う
ように櫛歯状にパターン形成されたものであることを特
徴とする請求項１又は請求項２に記載のＰＴＣ面状発熱
体。3. Each of the electrode layers is formed in a comb-like pattern on the region of the PTC heating element layer so as to mesh with the other electrode layer at substantially equal intervals. The PTC planar heating element according to claim 1 or 2.
JP9191048A 1997-07-16 1997-07-16 Ptc surfaced heating element Pending JPH1140328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9191048A JPH1140328A (en) 1997-07-16 1997-07-16 Ptc surfaced heating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9191048A JPH1140328A (en) 1997-07-16 1997-07-16 Ptc surfaced heating element

Publications (1)

Publication Number Publication Date
JPH1140328A true JPH1140328A (en) 1999-02-12

Family

ID=16268032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9191048A Pending JPH1140328A (en) 1997-07-16 1997-07-16 Ptc surfaced heating element

Country Status (1)

Country Link
JP (1) JPH1140328A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004511890A (en) * 2000-10-06 2004-04-15 イリノイ　トゥール　ワークス　インコーポレイティド Electric heater with thermistor
JP2011003429A (en) * 2009-06-19 2011-01-06 Panasonic Corp Planar heating element
JP2011014267A (en) * 2009-06-30 2011-01-20 Panasonic Corp Planar heating element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004511890A (en) * 2000-10-06 2004-04-15 イリノイ　トゥール　ワークス　インコーポレイティド Electric heater with thermistor
JP2011003429A (en) * 2009-06-19 2011-01-06 Panasonic Corp Planar heating element
JP2011014267A (en) * 2009-06-30 2011-01-20 Panasonic Corp Planar heating element

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