JP2001230057A - Positive temperature coefficient thermistor heating device and its manufacturing method - Google Patents
Positive temperature coefficient thermistor heating device and its manufacturing methodInfo
- Publication number
- JP2001230057A JP2001230057A JP2000037814A JP2000037814A JP2001230057A JP 2001230057 A JP2001230057 A JP 2001230057A JP 2000037814 A JP2000037814 A JP 2000037814A JP 2000037814 A JP2000037814 A JP 2000037814A JP 2001230057 A JP2001230057 A JP 2001230057A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- heating element
- insulating frame
- temperature coefficient
- positive temperature
- 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
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- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は温風暖房機・衣類乾
燥機・自動車室内空調などに用いられ正特性サーミスタ
発熱体装置及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positive temperature coefficient thermistor heating element device used for a hot air heater, a clothes dryer, an air conditioner in a vehicle interior, and the like, and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】図５は従来の正特性サーミスタ発熱体装
置に用いる複合発熱体ユニットの外観斜視図である。従
来の正特性サーミスタ発熱体装置の複合発熱体ユニット
７は、自己温度制御機能を有するＢａＴｉＯ3を主成分
とする正特性サーミスタ素子１と、その電極部に端子４
を有するコルゲート形状の金属放熱器３を接着剤２で固
着したものであった。2. Description of the Related Art FIG. 5 is an external perspective view of a composite heating element unit used in a conventional positive temperature coefficient thermistor heating element device. The composite heating element unit 7 of the conventional positive temperature coefficient thermistor heating element device includes a positive temperature coefficient thermistor element 1 mainly composed of BaTiO 3 having a self-temperature control function, and a terminal 4 connected to its electrode.
And a corrugated metal radiator 3 with
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の構造では金属放熱器３の表面は電気的に絶縁されて
いないため絶縁枠体の中に取り付け、更に、複合発熱体
ユニット７の発熱時の熱膨張を考慮して、複合発熱体ユ
ニット７と絶縁枠体とに間隙を設ける必要がある。この
構造では複合発熱体ユニット７が絶縁枠体に固着保持さ
れていないため外部から機械的な衝撃が加わると複合発
熱体ユニット７が振動する。外部からの機械的な衝撃が
長期間または大きい衝撃が加わる環境下では、複合発熱
体ユニット７の機械的な信頼性が低下するという課題を
有していた。However, in the above-described conventional structure, the surface of the metal radiator 3 is not electrically insulated, so that the metal radiator 3 is mounted in an insulating frame. In consideration of thermal expansion, it is necessary to provide a gap between the composite heating element unit 7 and the insulating frame. In this structure, the composite heating element unit 7 is not fixedly held on the insulating frame, so that when a mechanical shock is applied from the outside, the composite heating element unit 7 vibrates. There has been a problem that the mechanical reliability of the composite heating element unit 7 is reduced in an environment where a mechanical shock from the outside is applied for a long time or a large shock is applied.
【０００４】本発明は上記従来の課題を解決するもの
で、外部からの機械的な衝撃を吸収し、長期間の使用に
耐えうる信頼性の高い正特性サーミスタ発熱体装置を提
供することを目的とするものである。An object of the present invention is to solve the above-mentioned conventional problems and to provide a highly reliable positive-characteristic thermistor heating device capable of absorbing mechanical shock from the outside and enduring long-term use. It is assumed that.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明は、両主平面に電極を形成した正特性サーミス
タ素子及び前記電極に接合され端子機能を有する金属放
熱器とからなる複合発熱ユニットを耐熱樹脂からなる絶
縁枠体の内部に接着剤で固着し、これを取付枠体に収納
した正特性サーミスタ発熱体装置であり、これにより、
外部から機械的な衝撃が長期間または過大に加わるよう
な環境下の使用状態においても、複合発熱体ユニットの
機械的な信頼性を保持することが可能となり、所期の目
的を達成することができるものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a composite heating device comprising a positive temperature coefficient thermistor element having electrodes formed on both main surfaces and a metal radiator joined to the electrodes and having a terminal function. A positive-characteristic thermistor heating element device in which the unit is fixed with an adhesive inside an insulating frame made of a heat-resistant resin, and this is housed in a mounting frame.
It is possible to maintain the mechanical reliability of the combined heating element unit even in the use condition where the mechanical shock is applied for a long time or excessively from the outside, and the intended purpose can be achieved. You can do it.
【０００６】[0006]
【発明の実施の形態】本発明の請求項１に記載の発明
は、両主平面に電極を形成した正特性サーミスタ素子と
前記電極に接合され端子機能を有する金属放熱器とから
なる複合発熱ユニットを耐熱樹脂からなる絶縁枠体の内
部に接着剤で固着、収納した正特性サーミスタ発熱体装
置であり、取付枠体に取り付けられた耐熱性樹脂からな
る絶縁枠体に接着剤で固着収納された複合発熱体ユニッ
トは外部からの振動または衝撃を接着剤が吸収し、複合
発熱体ユニットの振動を抑制することができるという作
用を有するものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a composite heating unit comprising a positive temperature coefficient thermistor element having electrodes formed on both main planes and a metal radiator joined to the electrodes and having a terminal function. Is a PTC thermistor heating element device that is fixed and housed inside an insulating frame made of heat-resistant resin with an adhesive, and is fixedly housed with an adhesive in an insulating frame made of a heat-resistant resin attached to a mounting frame. The composite heating element unit has an effect that the adhesive absorbs external vibrations or shocks and can suppress the vibration of the composite heating element unit.
【０００７】本発明の請求項２に記載の発明は、複合発
熱ユニットの少なくとも長手方向の両端部を絶縁枠体の
内部に接着剤で固定した請求項１に記載の正特性サーミ
スタ発熱体装置であり、これにより発熱体の長手方向の
熱膨張を接着剤が吸収し、かつ外部からの振動または衝
撃を吸収し複合発熱体ユニットの振動が抑制されるとい
う作用を有するものである。According to a second aspect of the present invention, there is provided a positive temperature coefficient thermistor heating element device according to the first aspect, wherein at least both ends in the longitudinal direction of the composite heating unit are fixed to the inside of the insulating frame with an adhesive. There is an effect that the adhesive absorbs thermal expansion in the longitudinal direction of the heating element and absorbs external vibration or impact, thereby suppressing vibration of the composite heating element unit.
【０００８】本発明の請求項３に記載の発明は、接着剤
が弾性を有する樹脂からなる接着剤である請求項１に記
載の正特性サーミスタ発熱体装置であり、接着剤が弾性
を有する樹脂からなる接着剤で絶縁枠体と複合発熱ユニ
ットとを接合することにより、外部からの振動または衝
撃を弾性を有する接着剤が容易に吸収し、複合発熱体ユ
ニットの振動を抑制すると共に、絶縁枠体の内部に発熱
体を固定保持することができるという作用を有するもの
である。According to a third aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein the adhesive is an adhesive made of an elastic resin. By joining the insulating frame body and the composite heating unit with an adhesive made of, the adhesive having elasticity easily absorbs external vibration or impact, suppressing the vibration of the composite heating unit and insulating the frame. This has the effect that the heating element can be fixedly held inside the body.
【０００９】本発明の請求項４に記載の発明は、接着剤
が耐トラッキング性を有する樹脂からなる接着剤である
請求項１に記載の正特性サーミスタ発熱体装置であり、
これにより正特性サーミスタ発熱体装置に端子より通電
して動作させた場合、外部からの衝撃を接着剤が吸収し
複合発熱体ユニットの振動を抑制すると共に、絶縁枠体
と複合発熱体ユニットの接合面において複合発熱体ユニ
ットの端子間で発生のおそれがあるトラッキングを防止
するという作用を有するものである。According to a fourth aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein the adhesive is an adhesive made of a resin having tracking resistance.
This allows the adhesive to absorb external shocks and suppress the vibration of the composite heating element unit when the positive temperature coefficient thermistor heating element device is energized from the terminals, and to join the insulating frame and the composite heating element unit. This has the effect of preventing tracking that may occur between terminals of the composite heating element unit on the surface.
【００１０】本発明の請求項５に記載の発明は、接着剤
がシリコン系樹脂である請求項１に記載の正特性サーミ
スタ発熱体装置であり、耐熱性に優れたシリコン系樹脂
を用いることにより、正特性サーミスタ発熱体装置に端
子より通電して動作させた場合、複合発熱体ユニットが
高温となりこの熱による接着層の劣化を防止すると共
に、外部からの振動または衝撃を接着剤が吸収して、複
合発熱体ユニットの振動を抑制するという作用を有する
ものである。According to a fifth aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein the adhesive is a silicone resin, wherein the silicone resin having excellent heat resistance is used. When the positive temperature coefficient thermistor heating device is energized and operated from the terminals, the temperature of the composite heating unit becomes high, preventing the adhesive layer from deteriorating due to the heat, and absorbing the external vibration or shock by the adhesive. This has the effect of suppressing vibration of the composite heating element unit.
【００１１】本発明の請求項６に記載の発明は、表面に
プライマー処理を行った絶縁枠体を用いる請求項１に記
載の正特性サーミスタ発熱体装置であり、絶縁枠体の表
面にプライマー処理を行うことにより、絶縁枠体と接着
剤の界面の接着強度を向上させて、複合発熱体ユニット
を絶縁枠体に強固に固定保持させるという作用を有する
ものである。According to a sixth aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein an insulating frame whose surface is subjected to a primer treatment is used. By performing the above, the bonding strength at the interface between the insulating frame and the adhesive is improved, and the composite heating element unit is firmly fixed and held on the insulating frame.
【００１２】本発明の請求項７に記載の発明は、絶縁枠
体がＰＰＳ樹脂である請求項１に記載の正特性サーミス
タ発熱体装置であり、ＰＰＳ樹脂は機械的強度、耐熱性
に優れ、通電時に複合発熱体ユニットが高温になった場
合においても複合発熱体ユニットを強固に固定保持する
ことができるという作用を有するものである。According to a seventh aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein the insulating frame is a PPS resin, wherein the PPS resin has excellent mechanical strength and heat resistance. This has the effect that the composite heating element unit can be firmly fixed and held even when the temperature of the composite heating element unit becomes high during energization.
【００１３】本発明の請求項８に記載の発明は、絶縁枠
体の内面と複合発熱体ユニットとが接する部分に溝を設
けた請求項１に記載の正特性サーミスタ発熱体装置であ
り、これにより絶縁枠体と複合発熱体ユニットの接合面
において、複合発熱体ユニットの端子間の空間距離を長
くすると共に、溝部分に充填された接着剤がより強固に
複合発熱体ユニットを保持するという作用を有するもの
である。An eighth aspect of the present invention is the positive temperature coefficient thermistor heating element device according to the first aspect, wherein a groove is provided at a portion where an inner surface of the insulating frame and the composite heating element unit are in contact with each other. In the joint surface between the insulating frame and the composite heating element unit, the space distance between the terminals of the composite heating element unit is increased, and the adhesive filled in the groove portion holds the composite heating element unit more firmly. It has.
【００１４】本発明の請求項９に記載の発明は、取付枠
体を金属で構成した請求項１に記載の正特性サーミスタ
発熱体装置であり、取付枠体を金属で構成することによ
り、外部からの強い機械的衝撃に対し強度が向上し複合
発熱体ユニットを強固に保護することができるという作
用を有するものである。According to a ninth aspect of the present invention, there is provided the positive temperature coefficient thermistor heating device according to the first aspect, wherein the mounting frame is made of metal. This has the effect of increasing the strength against strong mechanical impact from the radiator, thereby enabling the composite heating element unit to be firmly protected.
【００１５】本発明の請求項１０に記載の発明は、絶縁
枠体の表面にプライマー処理を施した後、前記絶縁枠体
の内部または複合発熱体ユニットに接着剤を塗布、乾燥
を行い、次に複合発熱体ユニットを前記絶縁枠体に接着
剤で固着する正特性サーミスタ発熱体装置の製造方法で
あり、プライマー処理を施した絶縁枠体の内部に予め接
着剤を塗布、乾燥することにより、複合発熱体ユニット
と絶縁枠体との間の接着剤の厚みを確保し、外部からの
振動または衝撃を接着剤が吸収して複合発熱体ユニット
の振動をより吸収するための製造方法を規定したもので
ある。According to a tenth aspect of the present invention, after a primer treatment is performed on the surface of the insulating frame, an adhesive is applied to the inside of the insulating frame or the composite heating element unit, and then dried. A method for manufacturing a positive temperature coefficient thermistor heating element device in which a composite heating element unit is fixed to the insulating frame with an adhesive, in which an adhesive is applied in advance to the interior of the insulating frame that has been subjected to the primer treatment, and is dried. The manufacturing method for securing the thickness of the adhesive between the composite heating element unit and the insulating frame, and for absorbing the vibration or shock from the outside by the adhesive to further absorb the vibration of the composite heating element unit is defined. Things.
【００１６】以下、本発明の一実施の形態における正特
性サーミスタの発熱体装置について、図面を参照しなが
ら説明する。Hereinafter, a heating device of a PTC thermistor according to an embodiment of the present invention will be described with reference to the drawings.
【００１７】図１は複合発熱体ユニットの斜視図、図２
（ａ）及び図２（ｂ）は樹脂からなる絶縁枠体の斜視図
で、図２（ｃ）は図２（ｂ）の反対側から見た斜視図、
図３は金属製の取付枠体の斜視図、図４は本発明の実施
の形態１における正特性サーミスタ発熱体装置の斜視図
である。FIG. 1 is a perspective view of a composite heating element unit, and FIG.
2 (a) and 2 (b) are perspective views of an insulating frame body made of resin, FIG. 2 (c) is a perspective view seen from the opposite side of FIG. 2 (b),
FIG. 3 is a perspective view of a metal mounting frame, and FIG. 4 is a perspective view of a positive temperature coefficient thermistor heating device according to Embodiment 1 of the present invention.
【００１８】図１において、１は両主平面に電極（図示
せず）を形成したＢａＴｉＯ3を主成分とする正特性サ
ーミスタ素子、２は耐熱性のシリコン系接着剤、３はア
ルミニウムからなる金属放熱器、４は銅（ステンレスで
も可）を主成分とする端子、５は発熱体ユニット、６は
リード線、７は複合発熱体ユニットである。In FIG. 1, 1 is a positive temperature coefficient thermistor element mainly composed of BaTiO 3 having electrodes (not shown) formed on both main planes, 2 is a heat-resistant silicon-based adhesive, and 3 is a metal made of aluminum. The radiator 4 is a terminal mainly composed of copper (or stainless steel), 5 is a heating unit, 6 is a lead wire, and 7 is a composite heating unit.
【００１９】先ず、図１に示すように正特性サーミスタ
素子１の両電極面に接着剤２で放熱器３を固着し発熱体
ユニット５を作製した後、発熱体ユニット５を複数個並
列に並べ、各金属放熱器３の一方の端部に通電用のリー
ド線６と共に端子４で嵌めて複合発熱体ユニット７を作
製する。尚、放熱器３はその両面から空気が通過するよ
うなコルゲート状（スカイブ状でも可）フィンである。First, as shown in FIG. 1, a radiator 3 is fixed to both electrode surfaces of a positive temperature coefficient thermistor element 1 with an adhesive 2 to produce a heating unit 5, and a plurality of heating units 5 are arranged in parallel. Then, one end of each metal radiator 3 is fitted to the terminal 4 together with the lead wire 6 for energization to produce the composite heating element unit 7. The radiator 3 is a corrugated fin (or a skive fin) through which air passes from both sides.
【００２０】この複合発熱体ユニット７の長手方向の両
端面に、弾性を有する耐熱性のシリコン系接着剤１２を
塗布した後、端子４側に耐熱性ＰＰＳ製樹脂の絶縁枠体
１５を被せ貫通孔２０からリード線６を導出させると共
に、反対側に同じく耐熱性ＰＰＳ製樹脂の絶縁枠体１０
を被せて固着を行う。尚、絶縁枠体１０、絶縁枠体１５
が複合発熱体ユニット７と接する正特性サーミスタ素子
１部分の内面１４，１７には図２（ａ），（ｃ）に示す
ような溝１１，１６が形成されたものを用い、予め接合
前に絶縁枠体１０、絶縁枠体１５の内面１４，１７また
は全面にプライマー処理を行った後、内面１４，１７に
接着剤１２を塗布し乾燥を行っている。After applying heat-resistant silicone adhesive 12 having elasticity to both end surfaces in the longitudinal direction of the composite heating element unit 7, the terminal 4 is covered with an insulating frame 15 made of heat-resistant PPS resin. The lead wire 6 is led out from the hole 20 and the insulating frame 10 made of a heat-resistant PPS resin is provided on the opposite side.
And fix it. The insulating frame 10 and the insulating frame 15
Are formed with grooves 11 and 16 as shown in FIGS. 2A and 2C on the inner surfaces 14 and 17 of the positive temperature coefficient thermistor element 1 in contact with the composite heating element unit 7. After the inner surface 14, 17 or the entire surface of the insulating frame 10 and the insulating frame 15 has been subjected to the primer treatment, the adhesive 12 is applied to the inner surface 14, 17 and dried.
【００２１】また、絶縁枠体１０、絶縁枠体１５にＰＰ
Ｓ製の樹脂を用いたのは機械的強度、耐熱性に優れてい
るためであり、溝１１，１６を形成したのは絶縁枠体１
０、絶縁枠体１５と複合発熱体ユニット７との接合面で
絶縁枠体１０、絶縁枠体１５の表面の空間距離を広く
し、その表面での耐トラッキング性を向上させると共
に、複合発熱体ユニット７との接合面における接着剤１
２層の厚さを設け、複合発熱体ユニット７の保持力と、
耐衝撃吸収力を強めるためである。更にプライマー処理
を行うのは接着剤１２と絶縁枠体１０、絶縁枠体１５と
の界面の接着強度を向上させるためである。The insulating frame 10 and the insulating frame 15 are made of PP.
The S resin was used because of its excellent mechanical strength and heat resistance. The grooves 11 and 16 were formed on the insulating frame 1.
0, increasing the spatial distance between the surfaces of the insulating frame 10 and the insulating frame 15 at the joint surface between the insulating frame 15 and the composite heating element unit 7, improving the tracking resistance on the surface, and improving the composite heating element. Adhesive 1 at joint surface with unit 7
By providing a two-layer thickness, the holding power of the composite heating element unit 7 and
This is to increase the shock absorption resistance. Further, the reason why the primer treatment is performed is to improve the adhesive strength at the interface between the adhesive 12 and the insulating frames 10 and 15.
【００２２】また、更にプライマー処理面に予め接着剤
１２を塗布乾燥したのは絶縁枠体１０、絶縁枠体１５と
複合発熱体ユニット７との接合面に可能な限り多くの量
の接着剤１２層を形成し、図４に示す正特性サーミスタ
発熱体装置の完成品が、実用時に外部からの機械的な振
動または衝撃が加わった場合に接着剤１２層が吸収し複
合発熱体ユニット７の振動を抑制、保護するためであ
る。Furthermore, the reason why the adhesive 12 is applied and dried on the primer-treated surface in advance is that as much as possible the amount of the adhesive 12 is applied to the joint surface between the insulating frame 10 and the insulating frame 15 and the composite heating element unit 7. After the layer is formed, the finished product of the positive temperature coefficient thermistor heating element device shown in FIG. 4 is absorbed by the adhesive 12 layer when mechanical vibration or impact is applied from outside in practical use, and the vibration of the composite heating element unit 7 In order to suppress and protect.
【００２３】次に、絶縁枠体１０、絶縁枠体１５と一体
化した複合発熱体ユニット７を、図３に示す金属製の取
付枠体２２の切欠き孔２３側に絶縁枠体１５の凸部１９
が露出するように収納した後、絶縁枠体１０、絶縁枠体
１５の取付孔１３，１８を介して取付枠体２２のビス受
け部２４にビス２１により固定保持して、図４に示す正
特性サーミスタ発熱体装置を完成する。ビス２１による
固定は数ヵ所行うが、好ましくは４ヵ所にて行う方が良
い。また取付枠体２２は金属板を曲げ加工、もしくは複
数の金属板を溶接などにより形成したものでもよい。Next, the composite heating element unit 7 integrated with the insulating frame 10 and the insulating frame 15 is inserted into the metal mounting frame 22 shown in FIG. Part 19
Are exposed and then fixed and held by screws 21 to the screw receiving portions 24 of the mounting frame 22 through the mounting holes 13 and 18 of the insulating frame 10 and the insulating frame 15, so that the front shown in FIG. Complete the characteristic thermistor heating element device. The fixing with the screw 21 is performed at several places, but preferably at four places. The mounting frame 22 may be formed by bending a metal plate or by welding a plurality of metal plates.
【００２４】以上のような構成の正特性サーミスタ発熱
装置において、カプラー端子２５を介してリード線６に
電圧を印加すると、金属放熱器３を通して正特性サーミ
スタ素子１に通電され、正特性サーミスタ素子１が発熱
すると共に、所定の温度に到達すると正特性サーミスタ
素子１が温度を自己制御して定常発熱状態となり、この
正特性サーミスタ素子１の熱が金属放熱器３に伝えられ
る。この時、金属放熱器３に一方から通風すると、温風
が得られる。正特性サーミスタ発熱装置に通風するため
の送風装置あるいは、自動車のように走行中常時振動が
加わる環境下では、取付枠体２２を介して複合発熱体ユ
ニット７に振動や衝撃力が負荷される。しかしながら本
発明の正特性サーミスタ発熱装置は絶縁枠体１０、絶縁
枠体１５と複合発熱体ユニット７との接合面に弾性を有
する適度の厚さを有する接着剤１２層が介在するため、
取付枠体２２に加わった振動や衝撃力は接着剤１２層に
よって吸収され急激に減衰させることができる。その結
果複合発熱体ユニット７に加わる機械的ストレスが緩和
され、長期間の使用においても信頼性の高い正特性サー
ミスタ発熱装置を提供することができる。When a voltage is applied to the lead wire 6 through the coupler terminal 25 in the positive-characteristic thermistor heating device having the above-described configuration, the positive-characteristic thermistor element 1 is energized through the metal radiator 3 and is applied. When the temperature of the positive temperature coefficient thermistor element 1 reaches a predetermined temperature, the temperature of the positive temperature coefficient thermistor element 1 self-controls to a steady heating state, and the heat of the positive temperature coefficient thermistor element 1 is transmitted to the metal radiator 3. At this time, when air is passed through the metal radiator 3 from one side, warm air is obtained. In a blowing device for ventilating the positive temperature coefficient thermistor heating device, or in an environment where vibration is constantly applied during traveling such as a car, vibration and impact force are applied to the composite heating element unit 7 via the mounting frame 22. However, in the positive temperature coefficient thermistor heating device of the present invention, the insulating frame 10, the adhesive 12 having an appropriate thickness having a moderate thickness is interposed on the joint surface between the insulating frame 15 and the composite heating element unit 7.
Vibration and impact applied to the mounting frame 22 are absorbed by the adhesive 12 layer and can be rapidly attenuated. As a result, the mechanical stress applied to the composite heating element unit 7 is reduced, and a positive temperature coefficient thermistor heating device having high reliability even when used for a long time can be provided.
【００２５】尚、図１に発熱体ユニット５を三個接続し
たものを用いたがこの数に限定されるものではなく、ま
た端子４と共に複合発熱体ユニット７の一方の方向にの
みリード線６を接続したが端子４を複合発熱体ユニット
７の長手方向の両側に設ける構成も可能である。Although FIG. 1 shows an example in which three heating element units 5 are connected, the number is not limited to this, and the lead wires 6 are provided only in one direction of the composite heating element unit 7 together with the terminals 4. However, a configuration in which the terminals 4 are provided on both sides in the longitudinal direction of the composite heating element unit 7 is also possible.
【００２６】[0026]
【発明の効果】以上のように本発明の正特性サーミスタ
発熱体装置は、発熱体ユニットと絶縁枠体との接合面
を、弾性を有する適性な厚さの接着剤層で固着保持を行
っているため、正特性サーミスタ発熱体装置に外部から
振動や衝撃力が加わった場合においても、接着剤層が振
動や衝撃を吸収して発熱体ユニットに加わる機械的スト
レスを抑制する。このため正特性サーミスタ発熱体装置
の信頼性をより向上させることができるという効果が発
揮されるものである。As described above, in the positive temperature coefficient thermistor heating element device of the present invention, the bonding surface between the heating element unit and the insulating frame is fixed and held by an elastic adhesive layer having an appropriate thickness. Therefore, even when external vibration or impact is applied to the positive temperature coefficient thermistor heating device, the adhesive layer absorbs the vibration or impact and suppresses the mechanical stress applied to the heating unit. For this reason, the effect that the reliability of the positive temperature coefficient thermistor heating element device can be further improved is exhibited.
【図１】本発明の一実施の形態における複合発熱体ユニ
ットの斜視図FIG. 1 is a perspective view of a composite heating element unit according to an embodiment of the present invention.
【図２】（ａ）同端子側に対して反対側の絶縁枠体の斜
視図 （ｂ）同端子側の絶縁枠体の斜視図 （ｃ）同（ｂ）の反対側から見た斜視図FIG. 2A is a perspective view of an insulating frame body on the opposite side to the terminal side. FIG. 2B is a perspective view of the insulating frame body on the same terminal side.
【図３】同金属取付枠体の斜視図FIG. 3 is a perspective view of the metal mounting frame.
【図４】同正特性サーミスタ発熱体装置の斜視図FIG. 4 is a perspective view of the PTC thermistor heating device.
【図５】従来の正特性サーミスタ発熱体装置の複合発熱
体ユニットの外観斜視図FIG. 5 is an external perspective view of a composite heating element unit of a conventional PTC thermistor heating element device.
１ 正特性サーミスタ素子 ２ 接着剤 ３ 金属放熱器 ４ 端子 ５ 発熱体ユニット ６ リード線 ７ 複合発熱体ユニット １０，１５ 絶縁枠体 １１，１６ 溝 １２ 接着剤 １３，１８ 取付孔 １４，１７ 絶縁枠体の内面 １９ 凸部 ２０ 貫通孔 ２１ ビス ２２ 取付枠体 ２３ 切欠き孔 ２４ ビス受け部 DESCRIPTION OF SYMBOLS 1 Positive characteristic thermistor element 2 Adhesive 3 Metal radiator 4 Terminal 5 Heating element unit 6 Lead wire 7 Composite heating element unit 10, 15 Insulating frame 11, 16 Groove 12 Adhesive 13, 18 Mounting hole 14, 17 Insulating frame Inner surface 19 convex portion 20 through hole 21 screw 22 mounting frame 23 notch hole 24 screw receiving portion
Claims (10)
スタ素子と前記電極に接合され端子機能を有する金属放
熱器とからなる複合発熱ユニットを耐熱性樹脂からなる
絶縁枠体の内部に接着剤で固着し、これを取付枠体に収
納した正特性サーミスタ発熱体装置。1. A composite heat generating unit comprising a positive temperature coefficient thermistor element having electrodes formed on both main planes and a metal radiator having a terminal function and joined to said electrodes is provided with an adhesive inside an insulating frame made of heat resistant resin. A positive temperature coefficient thermistor heating element device that is fixed in the mounting frame body.
の両端部を絶縁枠体の内部に接着剤で固定した請求項１
に記載の正特性サーミスタ発熱体装置。2. The composite heating unit according to claim 1, wherein at least both ends in the longitudinal direction are fixed to the inside of the insulating frame with an adhesive.
The positive temperature coefficient thermistor heating element device according to 1.
剤である請求項１に記載の正特性サーミスタ発熱体装
置。3. The heating device according to claim 1, wherein the adhesive is an adhesive made of an elastic resin.
からなる接着剤である請求項１に記載の正特性サーミス
タ発熱体装置。4. The heating device according to claim 1, wherein the adhesive is an adhesive made of a resin having tracking resistance.
に記載の正特性サーミスタ発熱体装置。5. The adhesive according to claim 1, wherein the adhesive is a silicone resin.
The positive temperature coefficient thermistor heating element device according to 1.
を用いる請求項１に記載の正特性サーミスタ発熱体装
置。6. The positive temperature coefficient thermistor heating device according to claim 1, wherein an insulating frame whose surface is subjected to a primer treatment is used.
記載の正特性サーミスタ発熱体装置。7. The heating device according to claim 1, wherein the insulating frame is a PPS resin.
が接する部分に溝を設けた請求項１に記載の正特性サー
ミスタ発熱体装置。8. The PTC thermistor heating element device according to claim 1, wherein a groove is provided at a portion where the inner surface of the insulating frame body and the composite heating element unit are in contact with each other.
載の正特性サーミスタ発熱体装置。9. The PTC thermistor device according to claim 1, wherein the mounting frame is made of metal.
した後、前記絶縁枠体の内部または複合発熱体ユニット
に接着剤を塗布、乾燥を行い、次に複合発熱体ユニット
を前記絶縁枠体に接着剤で固着する正特性サーミスタ発
熱体装置の製造方法。10. After applying a primer treatment to the surface of the insulating frame, an adhesive is applied to the inside of the insulating frame or to the composite heating element unit and dried, and then the composite heating element unit is attached to the insulating frame body. For manufacturing a positive-characteristic thermistor heating element device which is fixed to an adhesive by an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000037814A JP2001230057A (en) | 2000-02-16 | 2000-02-16 | Positive temperature coefficient thermistor heating device and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000037814A JP2001230057A (en) | 2000-02-16 | 2000-02-16 | Positive temperature coefficient thermistor heating device and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001230057A true JP2001230057A (en) | 2001-08-24 |
Family
ID=18561647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000037814A Pending JP2001230057A (en) | 2000-02-16 | 2000-02-16 | Positive temperature coefficient thermistor heating device and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001230057A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008270551A (en) * | 2007-04-20 | 2008-11-06 | Nichicon Corp | Positive thermistor apparatus and method of manufacturing the same |
| JP2016515490A (en) * | 2013-04-28 | 2016-05-30 | ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ | Electric heater, defroster, heating air conditioning system and vehicle |
| EP3291640A1 (en) * | 2016-09-06 | 2018-03-07 | Mahle International GmbH | Electric heater |
-
2000
- 2000-02-16 JP JP2000037814A patent/JP2001230057A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008270551A (en) * | 2007-04-20 | 2008-11-06 | Nichicon Corp | Positive thermistor apparatus and method of manufacturing the same |
| JP2016515490A (en) * | 2013-04-28 | 2016-05-30 | ビーワイディー カンパニー リミテッドＢｙｄ Ｃｏｍｐａｎｙ Ｌｉｍｉｔｅｄ | Electric heater, defroster, heating air conditioning system and vehicle |
| US9879880B2 (en) | 2013-04-28 | 2018-01-30 | Shenzhen Byd Auto R&D Company Limited | Electric heater, and apparatus, heating and air conditioning system, and vehicle comprising the same |
| EP3291640A1 (en) * | 2016-09-06 | 2018-03-07 | Mahle International GmbH | Electric heater |
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