JP3635066B2 - Connection structure at the terminal of the sheet heating element - Google Patents

Connection structure at the terminal of the sheet heating element Download PDF

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Publication number
JP3635066B2
JP3635066B2 JP2002047668A JP2002047668A JP3635066B2 JP 3635066 B2 JP3635066 B2 JP 3635066B2 JP 2002047668 A JP2002047668 A JP 2002047668A JP 2002047668 A JP2002047668 A JP 2002047668A JP 3635066 B2 JP3635066 B2 JP 3635066B2
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Prior art keywords
case
resin
hole
terminal
wiring
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JP2002047668A
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JP2003249328A (en
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昌弘 石田
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シンワ測定株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、種々の用途に供される面状発熱体の端子部での接続構造に関するものである。
【0002】
【従来の技術及び発明が解決しようとする課題】
従来から、種々の用途に供される金属薄箔を用いた面状発熱体の端子加工方法が提案されている。
【0003】
この面状発熱体は金属薄箔に通電する事で発熱させ、該面状発熱体を付設した箇所を加熱するものであるが、一般にこの面状発熱体は次のような製造方法で製造されている。
【0004】
ポリエチレンテレフタレート樹脂フィルム1の上にエステル系などの接着剤11を介してステンレス箔2を貼着し(図1)、この箔2上に所望のパターンにてエッチングレジストによる保護印刷12を施し(図2)、続いて塩化第二鉄溶液により保護印刷12の存しない部分を腐食させ(図3)、水酸化ナトリウム溶液等により保護印刷12を除去し(図4)、その上にエポキシ系などの熱可塑性接着剤11'を塗工した絶縁フィルム1'を熱プレス機にて溶融接着し(図5)、その後端子部3のステンレス箔2に半田付け13、圧着接続子、溶接などの加工方法にて配線5(電線5)を接続し(図6では半田付けの場合を示している)、シリコンやエポキシなどの絶縁樹脂14で絶縁固定し(図7)、ヒーター上の任意の場所に貼り付けしたサーモスタットなどの温度制御部品9に電線5を直列接続して面状発熱体を製造している(図8)。
【0005】
出願人は種々検討した所、上記端子加工方法には次の欠点があることを見い出した。
【0006】
( ) 端子部接続に使用する電線が太くて硬い場合、使用時や後加工作業時の物理的ス トレス(特に引き剥がしストレス)によって電線が端子部より外れ易く、その固定 に大きな工数を要する。
【0007】
( ) 端子部の樹脂充填にムラが出るため、仕上り状態がまちまちであり、機械的強度 、絶縁性、防水性が不均一となる。また外観上見苦しい状態である。
【0008】
( ) 端子部を半田付けした場合、裏面のフィルムが熱変形して絶縁性が低下する。
【0009】
( ) 外部制御部品(温度制御部品)への配線がまとまっていないため、配線が見苦し かったり余分な電線を使ったりする。
【0010】
本発明は従来の端子部の構造に上記欠点を見い出し、これを解決するもので、端子部での機械的強度・絶縁性が向上し、体裁(外観)が良く、組み立て加工が容易となるなど極めて実用性に秀れた画期的な面状発熱体の端子部での接続構造を提供することを技術的課題とするものである。
【0011】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【0012】
フィルムや薄板などの基板1上に通電部2となる金属薄箔を形成し、この通電部2の端子部3に電源若しくは外部制御部品9と接続する配線5を接続して、通電することにより前記金属薄箔を発熱させる面状発熱体の端子部での接続構造であって、前記配線5を外出する外出孔6を設けた樹脂成形品たる強固な樹脂ケース7で前記通電部2と前記配線5とを接続する前記端子部3を覆った構成とし、前記樹脂ケース7には、樹脂を注入して前記端子部3を絶縁樹脂で充填被覆する樹脂注入孔 10 を設けた構成とすると共に、前記樹脂ケース7は、二つの分割ケース7Aを嵌め込みにより組み合せることでケース状に形成される組み付けケース7とし、前記基板1にこの組み付けケース7を嵌め込むためのケース取付孔8を形成し、このケース取付孔8を介して前記基板1を境にして上下方向から前記分割ケース7Aを前記基板1を挟持するように嵌め込みにより組み合せて基板1に前記組み付けケース7を取り付けて、前記端子部3を隠蔽した構成としたことを特徴とする面状発熱体の端子部での接続構造に係るものである。
【0013】
また、前記樹脂ケース7に設けた前記外出孔6は、前記電源と接続する配線5を外出する外出孔6と、前記外部制御部品9と接続する配線5を外出する外出孔6とを有することを特徴とする請求項1〜3のいずれか1項に記載の面状発熱体の端子部での接続構造に係るものである。
【0014】
【発明の実施の形態】
好適と考える本発明の実施の形態(発明をどのように実施するか)を、図面に基づいてその作用効果を示して簡単に説明する。
【0015】
端子部3全体を物理的に強固な樹脂成形品(樹脂ケース7)で覆うことで端子部分の機械的強度と絶縁性を向上させることができ、また樹脂ケース7で覆うため体裁も良く、例えば分割ケース7Aを組み合せてケース状となる組み付けケース7で覆うことができるため、製作も極めて容易であり、量産性に秀れながら、機械的強度と絶縁性が向上する画期的な面状発熱体の端子部での接続構造となる。
【0016】
即ち、例えば前記樹脂ケース7を、二つの分割ケース7Aを嵌め込みにより組み合せることでケース状に形成される組み付けケース7とし、前記基板1を境にして上下方向から分割ケース7Aを嵌め込み組み合せて基板1を挟持するようにして基板1に前記組み付けケース7を取り付けて、前記端子部3を隠蔽するように構成すれば、上下より分割ケース7Aを嵌め合わせるだけの簡単な組み付け作業で、裏面も含めた端子部3全体を物理的に強固な樹脂成形品で覆うことができ、一層簡単な取付作業で機械的強度と絶縁性を向上させることができる。
【0017】
また、この樹脂ケース7に電源用あるいは外部制御部品用電線5の外出孔6を設けたから、配線も容易に行え(外部制御部品9までの配線も容易に行え)、配線5が見苦しくなく、体裁も良く、また配線5に負荷がかかりにくく、一層耐久性が向上する。即ち、例えば温度制御部品9を組み込むスペースを設けることでそれにかかる配線5を合理化でき、制御部品の配線を簡略化出来ることとなる。
【0018】
また、必要に応じて樹脂注入孔10を設けることで簡単にして確実に端子部3を絶縁樹脂で充填被覆することができ、一層簡易にして極めて機械的強度と絶縁性を向上させると共に、防水性を高めることができる。
【0019】
即ち、樹脂注入口より樹脂を注入することで防水性と絶縁性と内部配線のさらなる強度向上が見込め、また、この充填樹脂は樹脂ケース7により隠蔽されているため外観を損なうこともない。
【0020】
【実施例】
本発明の具体的な実施例について図面に基づいて説明する。
【0021】
本実施例は、通電部2と配線5とを接続する端子部3を、前記配線5を外出する外出孔6を設けた樹脂成形品たる強固な樹脂ケース7で覆った構成としたもので、前記樹脂ケース7は、二つの分割ケース7Aを嵌め込みにより組み合せることでケース状に形成される組み付けケース7とし、基板1にこの組み付けケース7を嵌め込むためのケース取付孔8を形成し、このケース取付孔8を介して前記基板1を境にして上下方向から前記分割ケース7Aを前記基板1を挟持するように嵌め込みにより組み合せて基板1に前記組み付けケース7を取り付けて、前記端子部3を隠蔽した構成としている。
【0022】
即ち、前記ケース取付孔8を通す分割ケース7Aの端部の一方に嵌合部7B、他方にこの嵌合部7Bに係合する嵌合端を設けて、ケース取付孔8を介して互いに係合して上下一対の分割ケース7Aを嵌め込み組み合せて、基板1の端子部3を上下からこの組み付けケース7により隠蔽する構成としている。
【0023】
また、本実施例では、前記外出孔6として、電源と接続する配線5を外出する外出孔6と、外部制御部品9と接続する配線5を外出する外出孔6とを設け、また、樹脂を注入して前記端子部3を絶縁樹脂で充填被覆する樹脂注入孔10を設けた構成としている。
【0024】
更に具体的に図面に基づいて説明する。
【0025】
ポリエチレンテレフタレート樹脂フィルム1(基板1)の上にエステル系などの接着剤11を介してステンレス鋼2(金属薄箔による通電部2)を貼着し、この箔2上に所望のパターンにてエッチングレジストによる保護印刷を施し、続いて塩化第二鉄溶液により保護印刷の存しない部分を腐食させ、水酸化ナトリウム溶液等により保護印刷を除去し、その上にエポキシ系などの熱可塑性接着剤11'を塗工した絶縁フィルム1'を熱プレス機にて溶融接着した面状発熱体(図9)の端子部3の金属箔2に半田付け13、圧着接続子、溶接などの加工方法にて配線5(電線5)を接続し(図10では半田付けの場合を示している)、サーモスタット電線5(外部制御部品用電線5)とヒーター電線5(電源接続用配線5)を上側の分割ケース7Aのそれぞれの外出孔6に挿入し(図11)、電線5(外部制御部品用電線5)を引き出しながら分割ケース7Aの位置を所定位置に合わせ、下側分割ケース7Aをヒーター裏面よりはめ込んで固定する(図13)。
【0026】
さらに樹脂注入孔10よりシリコン樹脂16をもう一方の孔より吹き出す直前まで注入して硬化させ、ネームプレート17を貼って端子加工を行う(図14)。その後温度検知部の直上にサーモスタット9(外部制御部品9)を貼り付け、サーモスタット電線5の接続を行う(図15)。
【0027】
本実施例は上記構成であるから次の特長を有する。
【0028】
1.端子部全体を強固な樹脂成形品(樹脂ケース7)で覆うことで外部からの物理的ス トレスが端子部3に伝わることを防ぎ、さらに絶縁性を均一に向上させることが出来 る。
【0029】
2.その組み立てについても面状発熱体に固定孔(ケース取付孔8)を設ける事でその 孔を介して上下より部品(分割ケース7A)をはめ込むだけの簡単な作業で出来る。
【0030】
3.さらに端子側部品(樹脂ケース7)には電源用電線5と外部制御部品用電線5を挿 入するための孔(外出孔6)が設けてあるため電線5の固定も一緒に行うことが出来 る。
【0031】
4.さらに端子側部品(樹脂ケース7)に樹脂注入孔10を設けているため、絶縁樹脂を 注入する事で防水性と絶縁性と機械的強度を格段に向上することが出来る。
【0032】
5.またケース7内の容積を広く取ることで例えば温度制御部品をケース内に設置する 事を可能とし、制御部品までの配線コストとスペースを削減する事が可能である。
【0033】
6.外部制御部品9を使う場合でも配線口(外出孔6)を端子にまとめた事で外部制御 部品までの配線が最短のルートで行う事が容易となる。
【0034】
7.樹脂注入用孔10についても対角位置に設けた事で樹脂がケース7内に行き渡り易く している。さらに孔の形状に段を設け、樹脂注入時の溢れ出しの確認を行い易くして いる。
【0035】
8.また樹脂注入孔10の上にシールを貼れるようにしたため、注入口をふさぐと同時に ネームプレート17の貼合せを行う事が出来る。
【0036】
9.部品成形の際に外部制御部品9の引き出し孔(外出孔6)を塞ぐためのキャップも 一緒に成形し、外部制御部品9を使わない場合にはその部分にはめ込むことで樹脂を 注入した際の流れ出しを防止させる。
【0037】
尚、本発明は、本実施例に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。
【0038】
【発明の効果】
本発明は上述のように構成したから、電気的信頼性および強度に優れ、組み立ても容易な面状発熱体用端子ケースとなる。
【0039】
即ち、端子部全体を物理的に強固な樹脂成形品(樹脂ケース)で覆うことで端子部分の機械的強度と絶縁性を向上させることができ、また樹脂ケースで覆うため体裁も良く、特に本発明においては、分割ケースを組み合せてケース状となる組み付けケースで覆うことができるため、製作も極めて容易であり、量産性に秀れながら、機械的強度と絶縁性が向上する画期的な面状発熱体の端子部での接続構造となる。
【0040】
また、本発明においては、樹脂注入孔を設けることで簡単にして確実に端子部を絶縁樹脂で充填被覆することができ、一層簡易にして極めて機械的強度と絶縁性を向上させると 共に、防水性を高めることができる。
【0041】
即ち、樹脂注入口より樹脂を注入することで防水性と絶縁性と内部配線のさらなる強度向上が見込め、また、この充填樹脂は樹脂ケースにより隠蔽されているため外観を損なうこともないなど極めて画期的な面状発熱体の端子部での接続構造となる。
【0042】
また、請求項記載の発明においては、外部制御部品までの配線も容易に行え、配線が見苦しくなく、体裁も良く、また配線に負荷がかかりにくく、一層耐久性が向上する。
【図面の簡単な説明】
【図1】従来例の製造工程1の説明図である。
【図2】従来例の製造工程2の説明図である。
【図3】従来例の製造工程3の説明図である。
【図4】従来例の製造工程4の説明図である。
【図5】従来例の製造工程5の説明図である。
【図6】従来例の製造工程6の説明図である。
【図7】従来例の製造工程7の説明図である。
【図8】従来例の製品の俯瞰図である。
【図9】本実施例の製造工程1の説明図である。
【図10】本実施例の製造工程2の説明図である。
【図11】本実施例の製造工程3の説明図である。
【図12】本実施例の製造工程4の説明図である。
【図13】本実施例の製造工程5の説明図である。
【図14】本実施例の製造工程6の説明図である。
【図15】本実施例の製品の俯瞰図である。
【図16】本実施例の要部の拡大説明分解斜視図である。
【図17】本実施例の要部の拡大説明斜視図である。
【図18】本実施例の要部の裏面より見た拡大説明斜視図である。
【図19】本実施例の要部の上側の分割ケースを取り外した拡大説明斜視図である。
【図20】本実施例の要部の上側の分割ケースを取り外した拡大説明平面図である。
【符号の説明】
1 基板(樹脂フィルム)
2 通電部(ステンレス箔,箔,ステンレス鋼,金属箔)
3 端子部
5 配線(電線,サーモスタット電線,ヒーター電線,電源接続用配線,外部
制御部品用電線)
6 外出孔
7 樹脂ケース(組み付けケース)
7A 分割ケース
8 ケース取付孔
9 外部制御部品(サーモスタット,温度制御部品)
10 樹脂注入孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure at a terminal portion of a planar heating element used for various applications.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, a method of processing a terminal of a planar heating element using a thin metal foil for various uses has been proposed.
[0003]
This planar heating element generates heat by energizing a thin metal foil, and heats the location where the planar heating element is attached. In general, this planar heating element is manufactured by the following manufacturing method. ing.
[0004]
A stainless steel foil 2 is stuck on a polyethylene terephthalate resin film 1 via an adhesive 11 such as an ester (FIG. 1), and protective printing 12 with an etching resist is applied on the foil 2 in a desired pattern (FIG. 1). 2) Subsequently, the portion where the protective printing 12 does not exist is corroded with a ferric chloride solution (FIG. 3), and the protective printing 12 is removed with a sodium hydroxide solution or the like (FIG. 4). Insulating film 1 ′ coated with thermoplastic adhesive 11 ′ is melt-bonded with a hot press (FIG. 5), and then soldered to the stainless steel foil 2 of the terminal portion 3, crimping connector, welding, and other processing methods Connect the wiring 5 (electric wire 5) with (Fig. 6 shows the case of soldering), insulate and fix it with an insulating resin 14 such as silicon or epoxy (Fig. 7), and paste it at any place on the heater Such as a thermostat The planar heating element is manufactured by connecting the electric wire 5 in series to the temperature control component 9 (FIG. 8).
[0005]
The applicant has made various studies and found that the above terminal processing method has the following drawbacks.
[0006]
( 1 ) If the wire used for connecting the terminal part is thick and hard, the wire is likely to come off from the terminal part due to physical stress (especially peeling stress) during use or post-processing work, and it takes a lot of man-hours to fix it. .
[0007]
( 2 ) Since the resin filling of the terminal portion is uneven, the finished state varies, and the mechanical strength, insulation, and waterproofness are uneven. It is also unsightly in appearance.
[0008]
( 3 ) When the terminal portion is soldered, the film on the back surface is thermally deformed and the insulation is lowered.
[0009]
( 4 ) Since wiring to external control parts (temperature control parts) is not organized, wiring is difficult to see or extra wires are used.
[0010]
The present invention finds out the above-mentioned drawbacks in the structure of the conventional terminal portion and solves this problem. The mechanical strength and insulation at the terminal portion are improved, the appearance (appearance) is good, and the assembly process is easy. It is a technical object to provide a connection structure at the terminal portion of an innovative planar heating element that is extremely practical.
[0011]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0012]
By forming a thin metal foil to be a current-carrying part 2 on a substrate 1 such as a film or a thin plate, and connecting a power source or a wiring 5 connected to an external control component 9 to the terminal part 3 of the current-carrying part 2 A connection structure at a terminal portion of a sheet heating element that generates heat from the thin metal foil, and the current-carrying portion 2 and the conductive portion 2 are formed by a strong resin case 7 that is a resin molded product provided with an out-going hole 6 through which the wiring 5 goes out. The resin case 7 is provided with a resin injection hole 10 for injecting resin and filling and covering the terminal part 3 with an insulating resin. The resin case 7 is an assembly case 7 formed in a case shape by combining two divided cases 7A by fitting, and a case mounting hole 8 for fitting the assembly case 7 is formed in the substrate 1. , Take this case The division case 7A is assembled by fitting so as to sandwich the substrate 1 from above and below with the substrate 1 as a boundary through the hole 8, and the assembly case 7 is attached to the substrate 1 to conceal the terminal portion 3. The present invention relates to a connection structure at a terminal portion of a planar heating element characterized by having a configuration .
[0013]
Moreover, the said going out hole 6 provided in the said resin case 7 has the going out hole 6 which goes out of the wiring 5 connected to the said power supply, and the going out hole 6 which goes out of the wiring 5 connected to the said external control component 9. It concerns on the connection structure in the terminal part of the planar heating element of any one of Claims 1-3 characterized by these.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0015]
By covering the entire terminal part 3 with a physically strong resin molded product (resin case 7), the mechanical strength and insulation of the terminal part can be improved. Since the split case 7A can be combined and covered with an assembly case 7 that is in the form of a case, it is extremely easy to manufacture, and is excellent in mass production, while achieving groundbreaking planar heating that improves mechanical strength and insulation. It becomes the connection structure in the terminal part of the body.
[0016]
That is, for example, the resin case 7 is formed into a case 7 formed by combining two divided cases 7A by fitting, and the divided case 7A is fitted and combined from above and below with the substrate 1 as a boundary. If the assembly case 7 is attached to the substrate 1 so as to sandwich the substrate 1 and the terminal portion 3 is concealed, the assembly operation can be performed simply by fitting the divided case 7A from above and below, including the back surface. Further, the entire terminal portion 3 can be covered with a physically strong resin molded product, and mechanical strength and insulation can be improved by a simpler mounting operation.
[0017]
In addition, since the resin case 7 is provided with the outlet holes 6 for the power supply or external control component wires 5, wiring can be performed easily (wiring up to the external control components 9 can also be performed easily), and the wiring 5 is not unsightly and is in appearance. In addition, it is difficult to apply a load to the wiring 5, and the durability is further improved. That is, for example, by providing a space for incorporating the temperature control component 9, it is possible to rationalize the wiring 5 and simplify the control component wiring.
[0018]
In addition, if necessary, the resin injection hole 10 can be provided to easily and reliably fill and coat the terminal portion 3 with an insulating resin, which can be further simplified and extremely improved in mechanical strength and insulation and waterproof. Can increase the sex.
[0019]
That is, by injecting the resin from the resin injection port, further improvement in waterproofness, insulation, and strength of the internal wiring can be expected, and since the filling resin is concealed by the resin case 7, the appearance is not impaired.
[0020]
【Example】
Specific embodiments of the present invention will be described with reference to the drawings.
[0021]
In this embodiment, the terminal portion 3 that connects the energization portion 2 and the wiring 5 is covered with a strong resin case 7 that is a resin molded product provided with an out-going hole 6 that goes out of the wiring 5. The resin case 7 is an assembly case 7 formed in a case shape by combining two divided cases 7A by fitting, and a case mounting hole 8 for fitting the assembly case 7 is formed in the substrate 1, The terminal case 3 is attached to the substrate 1 by attaching the divided case 7A so as to sandwich the substrate 1 from above and below the substrate 1 through the case attachment hole 8 so as to sandwich the substrate 1. Concealed configuration.
[0022]
That is, one end of the split case 7A through which the case mounting hole 8 passes is provided with a fitting portion 7B, and the other is provided with a fitting end that engages with the fitting portion 7B. In combination, a pair of upper and lower divided cases 7A are fitted and combined so that the terminal portion 3 of the substrate 1 is concealed by the assembly case 7 from above and below.
[0023]
In the present embodiment, as the exit hole 6, an exit hole 6 for exiting the wiring 5 connected to the power source and an exit hole 6 for exiting the wiring 5 connected to the external control component 9 are provided, and resin is used. A resin injection hole 10 for filling and covering the terminal portion 3 with an insulating resin is provided.
[0024]
Further specific description will be given based on the drawings.
[0025]
Stainless steel 2 (current-carrying part 2 made of a thin metal foil) is pasted on polyethylene terephthalate resin film 1 (substrate 1) via an ester-based adhesive 11 and etched in a desired pattern on this foil 2. Perform protective printing with resist, then corrode the part where the protective printing does not exist with ferric chloride solution, remove the protective printing with sodium hydroxide solution etc., and then thermoplastic adhesive 11 'such as epoxy system Insulating film 1 'coated with solder is soldered to the metal foil 2 of the terminal portion 3 of the sheet heating element (FIG. 9) melted and bonded by a hot press machine, crimping connector, welding, etc. 5 (electric wire 5) is connected (FIG. 10 shows the case of soldering), and the thermostat electric wire 5 (external control component electric wire 5) and the heater electric wire 5 (power supply connecting wire 5) are connected to the upper divided case 7A. It's 11 is inserted into the outlet hole 6 (FIG. 11), and the position of the split case 7A is adjusted to a predetermined position while the electric wire 5 (external control component electric wire 5) is pulled out, and the lower split case 7A is fitted and fixed from the back surface of the heater. (FIG. 13).
[0026]
Further, the silicon resin 16 is injected from the resin injection hole 10 until just before it is blown out from the other hole and cured, and the terminal is processed by attaching the name plate 17 (FIG. 14). Thereafter, a thermostat 9 (external control component 9) is attached immediately above the temperature detection unit, and the thermostat electric wire 5 is connected (FIG. 15).
[0027]
Since the present embodiment has the above configuration, it has the following features.
[0028]
1. By covering the entire terminal part with a strong resin molded product (resin case 7), it is possible to prevent physical stress from the outside from being transmitted to the terminal part 3, and to improve the insulation property evenly.
[0029]
2. Assembling can also be done by simply attaching a part (divided case 7A) from above and below through the hole by providing a fixing hole ( case attachment hole 8) in the sheet heating element.
[0030]
3. Furthermore, since the terminal side component (resin case 7) has a hole (outing hole 6) for inserting the power supply wire 5 and the external control component wire 5, the wire 5 can be fixed together. The
[0031]
4). Furthermore, since the resin injection hole 10 is provided in the terminal side part (resin case 7), the waterproofness, the insulation and the mechanical strength can be remarkably improved by injecting the insulating resin.
[0032]
5. Further, by taking a large volume in the case 7, for example, it is possible to install a temperature control component in the case, and it is possible to reduce wiring cost and space to the control component.
[0033]
6). Even when the external control component 9 is used, wiring to the external control component can be easily performed by the shortest route by arranging the wiring port (outgoing hole 6) in the terminal.
[0034]
7). The resin injection holes 10 are also provided at diagonal positions so that the resin can easily reach the case 7. In addition, a step is provided in the shape of the hole to make it easier to check for overflow during resin injection.
[0035]
8). In addition, since the seal can be pasted on the resin injection hole 10, the name plate 17 can be bonded at the same time as the injection port is closed.
[0036]
9. A cap for closing the lead-out hole (outgoing hole 6) of the external control component 9 is also molded together when molding the component, and when the external control component 9 is not used, it is inserted into that part when the resin is injected. Prevent outflow.
[0037]
The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.
[0038]
【The invention's effect】
Since the present invention is configured as described above, the terminal case for a planar heating element is excellent in electrical reliability and strength and easy to assemble.
[0039]
That is, the entire terminal unit physically robust resin molded article can be improved mechanical strength and insulating terminal portion by covering with (resin case), and also good appearance to cover in the resin case, in particular the in the invention, it is possible to cover a case assembly comprising a case-like in combination split case, fabrication is also extremely easy, while Xiu are in mass production, is innovative to improve mechanical strength and insulating properties It becomes a connection structure in the terminal part of a planar heating element.
[0040]
In the present invention, both reliably terminal portion it easy by providing the resin injection hole can be filled covered with an insulating resin and further improve the very mechanical strength and insulating properties in the simple, waterproof Can increase the sex.
[0041]
That is, by injecting resin from the resin injection port, further improvement in waterproofness, insulation, and strength of internal wiring can be expected, and since this filling resin is concealed by the resin case, the appearance is not impaired. This is a connection structure at the terminal portion of the planar sheet heating element.
[0042]
According to the second aspect of the present invention, wiring to the external control component can be easily performed, the wiring is not unsightly, the appearance is good, the load is not easily applied to the wiring, and the durability is further improved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a manufacturing process 1 of a conventional example.
FIG. 2 is an explanatory diagram of a manufacturing process 2 of a conventional example.
FIG. 3 is an explanatory diagram of a manufacturing process 3 of a conventional example.
FIG. 4 is an explanatory diagram of a manufacturing process 4 of a conventional example.
FIG. 5 is an explanatory diagram of a manufacturing process 5 of a conventional example.
FIG. 6 is an explanatory diagram of a manufacturing process 6 of a conventional example.
FIG. 7 is an explanatory diagram of a manufacturing process 7 of a conventional example.
FIG. 8 is an overhead view of a conventional product.
FIG. 9 is an explanatory diagram of the production process 1 of the present embodiment.
FIG. 10 is an explanatory diagram of the manufacturing process 2 of the present embodiment.
11 is an explanatory diagram of a manufacturing process 3 of the present embodiment. FIG.
FIG. 12 is an explanatory diagram of the production process 4 of the present embodiment.
FIG. 13 is an explanatory diagram of the production process 5 of the present embodiment.
FIG. 14 is an explanatory diagram of the manufacturing process 6 of this example.
FIG. 15 is a bird's-eye view of the product of this example.
FIG. 16 is an enlarged exploded exploded perspective view of a main part of the present embodiment.
FIG. 17 is an enlarged explanatory perspective view of a main part of the present embodiment.
FIG. 18 is an enlarged explanatory perspective view seen from the back surface of the main part of the present embodiment.
FIG. 19 is an enlarged explanatory perspective view with the upper divided case of the main part of the embodiment removed.
FIG. 20 is an enlarged explanatory plan view with the upper divided case of the main part of the embodiment removed.
[Explanation of symbols]
1 Substrate (resin film)
2 Current-carrying part (stainless steel foil, foil, stainless steel, metal foil)
3 Terminal 5 wiring (wire, thermostat wire, heater wire, power supply connection wire, external control component wire)
6 Outgoing hole 7 Resin case (assembled case)
7A Split case 8 Case mounting hole 9 External control parts (thermostat, temperature control parts)
10 Resin injection hole

Claims (2)

フィルムや薄板などの基板上に通電部となる金属薄箔を形成し、この通電部の端子部に電源若しくは外部制御部品と接続する配線を接続して、通電することにより前記金属薄箔を発熱させる面状発熱体の端子部での接続構造であって、前記配線を外出する外出孔を設けた樹脂成形品たる強固な樹脂ケースで前記通電部と前記配線とを接続する前記端子部を覆った構成とし、前記樹脂ケースには、樹脂を注入して前記端子部を絶縁樹脂で充填被覆する樹脂注入孔を設けた構成とすると共に、前記樹脂ケースは、二つの分割ケースを嵌め込みにより組み合せることでケース状に形成される組み付けケースとし、前記基板にこの組み付けケースを嵌め込むためのケース取付孔を形成し、このケース取付孔を介して前記基板を境にして上下方向から前記分割ケースを前記基板を挟持するように嵌め込みにより組み合せて基板に前記組み付けケースを取り付けて、前記端子部を隠蔽した構成としたことを特徴とする面状発熱体の端子部での接続構造。A thin metal foil to be a current-carrying part is formed on a substrate such as a film or a thin plate, and a wire connected to a power source or an external control component is connected to the terminal part of the current-carrying part. A connection structure at a terminal portion of a planar heating element to be covered, wherein the terminal portion connecting the current-carrying portion and the wiring is covered with a strong resin case as a resin molded product provided with an out-going hole through which the wiring goes out. The resin case is provided with a resin injection hole for injecting resin and filling and covering the terminal portion with an insulating resin, and the resin case is assembled by fitting two divided cases. A case mounting hole is formed in the board, and a case mounting hole for fitting the mounting case is formed in the board. The separate casing is attached to the assembled casing in combination by fitting the substrate so as to sandwich the substrate, the connecting structure at the terminal part of the planar heating element, characterized in that it has a structure in which concealed the terminal portion. 前記樹脂ケースに設けた前記外出孔は、前記電源と接続する配線を外出する外出孔と、前記外部制御部品と接続する配線を外出する外出孔とを有することを特徴とする請求項1〜3のいずれか1項に記載の面状発熱体の端子部での接続構造。The said going out hole provided in the said resin case has an going out hole which goes out of the wiring connected to the said power supply, and the going out hole which goes out of the wiring connected to the said external control component. The connection structure in the terminal part of the planar heating element of any one of these.
JP2002047668A 2002-02-25 2002-02-25 Connection structure at the terminal of the sheet heating element Expired - Fee Related JP3635066B2 (en)

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JP4948187B2 (en) * 2007-01-26 2012-06-06 プライムアースEvエナジー株式会社 Laminated thin heater, laminated thin heater with lead wire, battery structure with heater, and heater unit
KR101465790B1 (en) * 2014-04-18 2014-12-01 윤채권 Sealed housing and Embedment heating equipment using this material and its facilities and Manufacturing method thereof
KR101582596B1 (en) * 2014-08-25 2016-01-05 주식회사 지앤브이 Sealed housing and Embedment heating equipment using this material and its facilities and Manufacturing method thereof

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