JP2569725Y2 - Positive characteristic thermistor device - Google Patents
Positive characteristic thermistor deviceInfo
- Publication number
- JP2569725Y2 JP2569725Y2 JP1991057211U JP5721191U JP2569725Y2 JP 2569725 Y2 JP2569725 Y2 JP 2569725Y2 JP 1991057211 U JP1991057211 U JP 1991057211U JP 5721191 U JP5721191 U JP 5721191U JP 2569725 Y2 JP2569725 Y2 JP 2569725Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- heat
- temperature coefficient
- positive temperature
- coefficient thermistor
- 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.)
- Expired - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本考案は、液体式電気蚊取器等に
使用される正特性サーミスタ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positive temperature coefficient thermistor device used for a liquid electric mosquito trap or the like.
【０００２】[0002]
【従来の技術】殺虫液を毛細管現象によって浸透させた
芯棒の外周を加熱することにより、芯棒から殺虫ガスを
放散させる液体式の電気蚊取器等において、芯棒を加熱
するための正特性サーミスタ装置としては、実開昭６２
ー１２９７９４号公報に記載された技術が知られてい
る。上記公報に記載された正特性サーミスタ装置は、ケ
ースと、正特性サーミスタと、電極端子と、放熱部材と
を有する。ケースは底部と対向する面側が開口面となっ
ている凹部を有しており、正特性サーミスタは相対する
両面に電極を有し電極が底部及び開口面の方向を向くよ
うに凹部内に配置されており、電極端子は正特性サーミ
スタの電極に重ねられケースの底部側から外部に導出さ
れており、放熱部材は電気絶縁板を介してケースの開口
面側に配置されている。電気絶縁板はマイカ等で構成さ
れ、ケースの開口面を閉塞している。放熱部材はこの電
気絶縁板の上に配置され、電気絶縁板を介して正特性サ
ーミスタに熱結合されている。2. Description of the Related Art In a liquid-type electric mosquito trap or the like that disperses insecticidal gas from a core rod by heating the outer periphery of a core rod in which an insecticidal liquid is penetrated by capillary action, the core rod is heated. As a characteristic thermistor device,
-129794 is known. The PTC thermistor device described in the above publication has a case, a PTC thermistor, an electrode terminal, and a heat dissipation member. The case has a recess in which the side facing the bottom is an opening surface, and the positive temperature coefficient thermistor has electrodes on both sides facing each other, and is arranged in the recess so that the electrodes face the bottom and the opening surface. The electrode terminal is superposed on the electrode of the positive temperature coefficient thermistor and is led out from the bottom side of the case, and the heat radiation member is disposed on the opening side of the case via an electric insulating plate. The electric insulating plate is made of mica or the like, and closes an opening surface of the case. The heat radiating member is disposed on the electric insulating plate, and is thermally coupled to the positive temperature coefficient thermistor via the electric insulating plate.
【０００３】上記従来の正特性サーミスタ装置によれ
ば、殺虫液を浸透させた芯棒の外周を加熱する液体式電
気蚊取器等を形成する場合、筒状放熱筒体に芯棒を挿着
して加熱できる。According to the above-mentioned conventional positive temperature coefficient thermistor device, when a liquid electric mosquito catcher or the like for heating the outer periphery of a core rod impregnated with an insecticide is formed, the core rod is inserted into a cylindrical heat radiation cylinder. Can be heated.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、放熱部
材がケースの開口面側に配置されているために、薬液が
電気絶縁板とケースとの接触界面等を通ってケース内部
に侵入し、内部に配置された正特性サーミスタを劣化さ
せてしまうことがあった。しかも、放熱部材への熱伝導
性向上のために、電気絶縁物はマイカ板によって構成さ
れており、吸液性が高いために、薬液浸透による電気絶
縁板の劣化等を招いてしまうという問題点もあった。However, since the heat dissipating member is disposed on the opening side of the case, the chemical liquid enters the case through the contact interface between the electric insulating plate and the case and enters the case. In some cases, the disposed positive temperature coefficient thermistor is deteriorated. In addition, the electrical insulator is made of a mica plate in order to improve the thermal conductivity to the heat radiating member, and the liquid absorbing property is high, which causes deterioration of the electrical insulating plate due to chemical penetration. There was also.
【０００５】そこで、本考案の課題は、上述する従来の
問題点を解決し、ケース内部への薬液侵入を防止し得る
正特性サーミスタ装置を提供することである。Accordingly, an object of the present invention is to solve the above-described conventional problems and to provide a positive temperature coefficient thermistor device capable of preventing a chemical solution from entering a case.
【０００６】[0006]
【課題を解決するための手段】上述する課題解決のた
め、本考案は、ケースと、ケース蓋と、正特性サーミス
タと、電極端子と、放熱部材とを有する正特性サーミス
タ装置であって、前記ケースは、底部と対向する面側が
開口面となっている凹部を有しており、前記ケース蓋
は、前記ケースの前記開口面を閉塞しており、前記正特
性サーミスタは、相対する両面に電極を有し、前記電極
が前記底部及び前記開口面の方向を向くように前記凹部
内に配置されており、前記電極端子は、前記凹部内にお
いて前記正特性サーミスタの前記電極に重ねられ前記開
口面側から外部に導出されており、前記放熱部材は、放
熱筒体を有しており、前記放熱筒体は、前記ケースの底
部外面上に配置され、軸方向の両端に折曲げ片を有し、
前記折曲げ片が前記ケースの裏面側に折畳まれているこ
とを特徴とする。According to the present invention, there is provided a positive temperature coefficient thermistor device comprising a case, a case lid, a positive temperature coefficient thermistor, an electrode terminal, and a heat radiating member. The case has a concave portion in which a surface side facing the bottom is an opening surface, the case lid closes the opening surface of the case, and the positive temperature coefficient thermistor has electrodes on opposite surfaces. Wherein the electrode is disposed in the concave portion so as to face the bottom and the opening surface, and the electrode terminal is overlapped with the electrode of the positive temperature coefficient thermistor in the concave portion and the opening surface is provided. are derived from the side to the outside, the heat radiating member has a heat radiation tube body, the heat radiating cylinder, the bottom of the case
Arranged on the outer surface, having bent pieces at both ends in the axial direction,
Check that the bent piece is folded on the back side of the case.
And features.
【０００７】[0007]
【作用】電極端子は開口面側から外部に導出されている
から、ケースの底部は、電極端子を導出するための孔や
穴等の開口部を有する必要がなく、完全に閉塞すること
ができる。Since the electrode terminal is led out from the opening surface side, the bottom of the case does not need to have an opening such as a hole or a hole for leading the electrode terminal, and can be completely closed. .
【０００８】放熱部材は、放熱筒体がケースの底部外面
上に配置されているから、放熱筒体に結合された芯棒等
から放散されまたは流れ落ちた薬液は、ケースの底部外
面に付着する。ケースの底部外面は、前述したように、
完全に閉塞した面として形成できるから、薬液がケース
の凹部内に侵入するのを完全に阻止できる。In the heat radiating member, since the heat radiating cylinder is disposed on the outer surface of the bottom of the case, the chemical liquid radiated or dropped from the core rod or the like connected to the heat radiating cylinder adheres to the outer surface of the bottom of the case. The bottom outer surface of the case, as described above,
Since it can be formed as a completely closed surface, it is possible to completely prevent the chemical solution from entering the concave portion of the case.
【０００９】このため、薬液侵入による正特性サーミス
タの劣化を阻止し、信頼性を高めることができる。For this reason, the deterioration of the positive temperature coefficient thermistor due to the intrusion of the chemical solution can be prevented, and the reliability can be improved.
【００１０】[0010]
【実施例】図１は本考案に係る正特性サーミスタ装置の
要部における分解斜視図、図２は同じく組立状態での正
面断面図、図３は同じくその平面図、図４は同じくその
底面図である。図において、１はケース、２は正特性サ
ーミスタ、３、４は一対の電極端子、５は放熱部材、６
はケース蓋、７は取付部材を示している。1 is an exploded perspective view of an essential part of a positive temperature coefficient thermistor device according to the present invention, FIG. 2 is a front sectional view in an assembled state, FIG. 3 is a plan view thereof, and FIG. 4 is a bottom view thereof. It is. In the figure, 1 is a case, 2 is a positive temperature coefficient thermistor, 3 and 4 are a pair of electrode terminals, 5 is a heat radiation member, 6
Denotes a case lid, and 7 denotes a mounting member.
【００１１】ケース１は底部１１と対向する面側が開口
面１２となっている凹部１３を有している。ケース１は
熱伝導性、耐薬品性に優れた電気絶縁物、例えばアルミ
ナ等によって構成され、底部１１が孔や穴等の開口部を
持たない閉じた面を構成している。The case 1 has a concave portion 13 having an opening surface 12 on the side facing the bottom portion 11. The case 1 is made of an electrical insulator having excellent thermal conductivity and chemical resistance, for example, alumina or the like, and the bottom portion 11 forms a closed surface having no opening such as a hole or a hole.
【００１２】正特性サーミスタ２は、素体２１の相対す
る両面に電極２２、２３を有する平板状となっていて、
電極２２、２３が底部１１及び開口面１２の方向を向く
ように凹部１３の内部に配置されている。その形状は、
円板または角板等の何れであってもよい。The PTC thermistor 2 is a flat plate having electrodes 22 and 23 on opposite surfaces of a body 21.
The electrodes 22 and 23 are arranged inside the concave portion 13 so as to face the bottom 11 and the opening surface 12. Its shape is
Any of a disk, a square plate and the like may be used.
【００１３】電極端子３、４は、凹部１３の内部におい
て正特性サーミスタ２の電極２２、２３に重ねられ開口
面１２側から外部に導出されている。これらの電極端子
３、４はステンレス等の金属薄板によって構成するのが
望ましい。電極端子３、４のうち、ケース１の底部１１
側に配置されて電極２２に接触する電極端子３は、電極
接触部３１、狭幅部３２及び端子部３３を有する。電極
接触部３１は平板状に形成され、狭幅部３２は電極接触
部３１の側部に間隔を隔てて配置され一端が電極接触部
３１に連続している。狭幅部３２は過電流溶断部とな
る。端子部３３はクランク状に折曲げられ、電極接触部
３１の面に対してほぼ直角となる方向に配置され、一端
が狭幅部３２の他端側に連続している。The electrode terminals 3 and 4 are superimposed on the electrodes 22 and 23 of the positive temperature coefficient thermistor 2 inside the recess 13 and are led out from the opening surface 12 side. These electrode terminals 3 and 4 are desirably formed of a thin metal plate such as stainless steel. Of the electrode terminals 3 and 4, the bottom 11 of the case 1
The electrode terminal 3 arranged on the side and in contact with the electrode 22 has an electrode contact portion 31, a narrow portion 32, and a terminal portion 33. The electrode contact portion 31 is formed in a flat plate shape, and the narrow portion 32 is arranged on the side of the electrode contact portion 31 with a space therebetween, and one end thereof is continuous with the electrode contact portion 31. The narrow portion 32 becomes an overcurrent fusing portion. The terminal portion 33 is bent in a crank shape, is disposed in a direction substantially perpendicular to the surface of the electrode contact portion 31, and has one end connected to the other end of the narrow portion 32.
【００１４】電極端子４は開口面１２側に配置され、電
極２３に接触している。電極端子４はバネ部４１及び平
板部４２を有し、バネ部４１のバネ圧により平板部４２
を電極２３に弾力的に接触させてある。バネ部４１の端
部には端子部４３が設けられており、端子部４３はクラ
ンク状に折曲げられている。The electrode terminal 4 is arranged on the side of the opening surface 12 and is in contact with the electrode 23. The electrode terminal 4 has a spring portion 41 and a flat plate portion 42.
Is elastically contacted with the electrode 23. A terminal portion 43 is provided at an end of the spring portion 41, and the terminal portion 43 is bent in a crank shape.
【００１５】放熱部材５は、放熱筒体５１を有し、放熱
筒体５１がケース１の底部１１の外面上に配置されてい
る。図６及び図７は放熱部材５の具体的な構造例を示す
図である。放熱部材５は熱伝導性の良好な金属板、例え
ばアルミニューム板を用いて構成されている。放熱筒体
５１は外周面がケース１の底部１１の外面と接触してお
り、接触部分となる熱結合部５２が平坦状となってい
る。ケース１の底部１１と熱結合部５２との接触部分に
は、例えばシリコーン樹脂等の熱伝導性樹脂を充填する
ことが望ましい。こような平坦状の熱結合部５２がある
と、放熱筒体５１とケース１の底部１１の外面との間の
熱結合が密になり、熱伝導効率が向上する。放熱筒体５
１は、更に、軸方向の両端に折曲げ片５３、５４を有
し、折曲げ片５３、５４がケース１の裏面側に折畳まれ
ている。従って、放熱部材５は全体支持固定する保持部
材として兼用されている。放熱筒体５１は軸方向に沿っ
て設けられたスリット５５を有する。The heat dissipating member 5 has a heat dissipating cylinder 51, which is disposed on the outer surface of the bottom 11 of the case 1. FIG. 6 and FIG. 7 are views showing a specific example of the structure of the heat radiation member 5. The heat radiation member 5 is formed using a metal plate having good heat conductivity, for example, an aluminum plate. The outer peripheral surface of the radiating tubular body 51 is in contact with the outer surface of the bottom 11 of the case 1, and the thermal coupling portion 52 serving as a contact portion is flat. It is desirable to fill a contact portion between the bottom 11 of the case 1 and the thermal coupling portion 52 with a thermally conductive resin such as a silicone resin. When such a flat thermal coupling portion 52 is provided, the thermal coupling between the radiating cylinder 51 and the outer surface of the bottom portion 11 of the case 1 becomes dense, and the heat conduction efficiency is improved. Heat radiation cylinder 5
1 further has bent pieces 53 and 54 at both ends in the axial direction, and the bent pieces 53 and 54 are folded on the back side of the case 1. Therefore, the heat radiation member 5 is also used as a holding member for supporting and fixing the whole. The radiator cylinder 51 has a slit 55 provided along the axial direction.
【００１６】ケース蓋６は、ケース１の開口面１２を閉
塞するように配置されている。ケース蓋６はケース１の
凹部１３の周辺に設けられた段面で受けられ、電極端子
３、４の端子部３３、４３は段面に生じるケース１とケ
ース蓋６との間の界面を通って外部に導出されている。
ケース蓋６とケース１の接触界面及び端子部３３、４３
の導出部の周りは耐候性樹脂等を充填して密閉する。取
付部材７は腕片５８により放熱部材５に組合わされてい
る。取付部材７は機械的強度が大きく、耐薬品性に優れ
た金属板材、例えばステンレス等によって構成されてい
る。The case lid 6 is arranged so as to close the opening surface 12 of the case 1. The case lid 6 is received on a step surface provided around the concave portion 13 of the case 1, and the terminal portions 33 and 43 of the electrode terminals 3 and 4 pass through an interface between the case 1 and the case lid 6 generated on the step surface. Out to the outside.
Contact interface between case lid 6 and case 1 and terminals 33 and 43
Around the lead-out portion is filled with a weather-resistant resin or the like and hermetically sealed. The mounting member 7 is combined with the heat radiating member 5 by the arm piece 58. The mounting member 7 is made of a metal plate having high mechanical strength and excellent chemical resistance, such as stainless steel.
【００１７】組立状態では、ケース１の凹部１３の底部
１１に電極端子３を配置し、電極端子３の上に、正特性
サーミスタ２、電極端子４及びケース蓋６を順次重ねる
と共に、ケース１の底部１１の外面に放熱部材５を配置
し、折曲げ片５３、５４をケース蓋６の上面に折曲げ固
定し、電極端子４の弾発力に抗しつつ、全体を弾力的に
支持固定する。そして、腕片５８を用いて取付部材７を
放熱部材５に連結する。In the assembled state, the electrode terminal 3 is arranged on the bottom 11 of the concave portion 13 of the case 1, and the positive temperature coefficient thermistor 2, the electrode terminal 4 and the case lid 6 are sequentially stacked on the electrode terminal 3, and The heat dissipating member 5 is arranged on the outer surface of the bottom 11, and the bent pieces 53, 54 are bent and fixed to the upper surface of the case lid 6, and the whole is elastically supported and fixed while resisting the elasticity of the electrode terminals 4. . Then, the mounting member 7 is connected to the heat radiation member 5 using the arm piece 58.
【００１８】図５は本考案に係る正特性サーミスタ装置
の使用状態を示す図で、放熱筒体５１の内径部内に殺虫
剤を吸い上げる芯棒８を挿入し、この芯棒８を周囲から
加熱して殺虫成分を熱放散させる。芯棒８の下端部は図
示しない殺虫液収納容器に浸されている。ここで、電極
端子３、４は開口面１２側から外部に導出されているか
ら、ケース１の底部１１に電極端子３、４を導出するた
めの孔や穴等の開口部を有する必要がなく、完全に閉塞
されている。この閉塞された底部１１の外面上に、放熱
部材５の放熱筒体５１が配置されているから、放熱部材
５の放熱筒体５１に結合された芯棒８から放散されまた
は流れ落ちた薬液が、ケース１の凹部１３の内部に侵入
するのを完全に阻止できる。このため、薬液侵入による
正特性サーミスタ２の劣化を阻止し、信頼性を高めるこ
とができる。FIG. 5 is a diagram showing a use state of the positive temperature coefficient thermistor device according to the present invention. A core rod 8 for sucking up the insecticide is inserted into the inner diameter of the radiating cylinder 51, and the core rod 8 is heated from the surroundings. To dissipate the insecticidal ingredients. The lower end of the core rod 8 is immersed in an insecticide liquid storage container (not shown). Here, since the electrode terminals 3 and 4 are led out from the opening surface 12 side, there is no need to have an opening such as a hole or a hole for leading the electrode terminals 3 and 4 on the bottom 11 of the case 1. , Completely closed. Since the heat radiating cylinder 51 of the heat radiating member 5 is disposed on the outer surface of the closed bottom 11, the chemical liquid radiated or dropped from the core rod 8 connected to the heat radiating cylinder 51 of the heat radiating member 5 is Intrusion into the recess 13 of the case 1 can be completely prevented. For this reason, the deterioration of the PTC thermistor 2 due to the intrusion of the chemical can be prevented, and the reliability can be improved.
【００１９】図示の放熱筒体５１はケース１の底部１１
の外面に面接触しているから、正特性サーミスタ２に発
生した熱が放熱筒体５１に効率良く伝達できる。このた
め、発熱温度の低い正特性サーミスタ２を使用してケー
ス１の温度上昇を押えると共に、放熱筒体５１を必要な
温度まで上昇させることができるようになる。The heat-dissipating cylinder 51 shown in FIG.
, The heat generated in the positive temperature coefficient thermistor 2 can be efficiently transmitted to the radiator cylinder 51. Therefore, the temperature rise of the case 1 can be suppressed by using the positive temperature coefficient thermistor 2 having a low heat generation temperature, and the radiating cylinder 51 can be raised to a required temperature.
【００２０】電極端子３は、正特性サーミスタ２の電極
２２に面接触する接触部３１と端子部３３とを、接触部
３１の側方に間隔をおいて形成された狭幅部３２によっ
て連続させ、この狭幅部３２を過電流溶断部とした構造
となっている。正特性サーミスタ２が劣化した場合、本
来、低電流となるべき熱平衡時に過電流が流れ、正特性
サーミスタ２の破損、異常発熱、それに伴う火災等を生
じてしまう等、極めて危険な状態となる。そこで、この
実施例では、電極端子３に過電流溶断部となる狭幅部３
２を設け、過電流保護を行なう。In the electrode terminal 3, a contact portion 31 and a terminal portion 33 which are in surface contact with the electrode 22 of the positive temperature coefficient thermistor 2 are connected by a narrow portion 32 formed on the side of the contact portion 31 with a space therebetween. The narrow width portion 32 is formed as an overcurrent fusing portion. When the positive temperature coefficient thermistor 2 is deteriorated, an overcurrent flows at the time of thermal equilibrium, which should be a low current, resulting in an extremely dangerous state such as damage to the positive temperature coefficient thermistor 2, abnormal heat generation, and accompanying fire. Thus, in this embodiment, the electrode terminal 3 is provided with a narrow portion 3 serving as an overcurrent fusing portion.
2 for overcurrent protection.
【００２１】ケース１は電極端子３の狭幅部３２と対応
する位置に、凹部１３から独立するように区画形成され
た凹部１４を有する。組立状態では、凹部１４内に電極
端子３の狭幅部３２が位置し、その上をケース蓋６で閉
塞した構造となる。このような構造であると、狭幅部３
２が過電流によって溶断した場合、溶融金属は凹部１４
内にとどまり、正特性サーミスタ２のある凹部１３内に
飛散することがない。従って、溶融金属が正特性サーミ
スタ２の外周面等に付着することによる電極２２ー３３
間短絡を阻止することができる。狭幅部３２は凹部１４
の内壁面から離して配置する。こうすることにより、狭
幅部３２からケース１への放熱を抑え、所定の過電流溶
断電流値で確実に溶断できるようになる。The case 1 has a recess 14 formed at a position corresponding to the narrow portion 32 of the electrode terminal 3 so as to be separated from the recess 13. In the assembled state, the narrow portion 32 of the electrode terminal 3 is located in the concave portion 14, and the narrow portion 32 is closed by the case lid 6. With such a structure, the narrow portion 3
2 melts due to overcurrent, the molten metal
And does not scatter in the recess 13 where the PTC thermistor 2 is located. Therefore, the electrodes 22-33 due to the molten metal adhering to the outer peripheral surface and the like of the positive temperature coefficient thermistor 2
Short circuit can be prevented. The narrow portion 32 is the concave portion 14
And placed away from the inner wall surface. By doing so, heat radiation from the narrow portion 32 to the case 1 is suppressed, and fusing can be reliably performed at a predetermined overcurrent fusing current value.
【００２２】次に本考案の他の実施例について説明す
る。図８は本考案に係る正特性サーミスタ装置の別の実
施例における分解斜視図、図９は同じくその断面図、図
１０は同じく放熱部材の拡大斜視図、図１１は同じくそ
の断面図である。図において、図１〜図７と同一の参照
符号は同一性ある構成部分を示している。この実施で
は、放熱部材５は、放熱筒体５１の他に、集熱部５０を
有し、集熱部５０がケース１の底部１１の外面上に重ね
られ、放熱筒体５１が集熱部５０の上に配置されてい
る。図１０及び図１１は放熱部材５の具体的な構造例を
示す図で、放熱部材５は熱伝導性の良好な金属板、例え
ばアルミニューム板を用いて構成され、集熱部５０の周
辺部に固定用腕片５７、位置決め用腕片５６及び取付部
材固定用腕片５８を有している。放熱部材５は、集熱部
５０がケース１の底部１１の外面に面接触し、放熱筒体
５１の外周面が集熱部５０の表面に面接触している。こ
のため、集熱部５０から放熱筒体５１への熱伝導効率が
高くなる。図示の放熱筒体５１は、集熱部５０との熱結
合部５２が平坦状であるから、集熱部５０から放熱筒体
５１への熱伝導効率がより一層向上する。集熱部５０の
表面と平坦状の熱結合部５２との間にはシリコーン樹脂
等の熱伝導性樹脂を充填することが望ましい。Next, another embodiment of the present invention will be described. 8 is an exploded perspective view of another embodiment of the positive temperature coefficient thermistor device according to the present invention, FIG. 9 is a sectional view of the same, FIG. 10 is an enlarged perspective view of a heat dissipating member, and FIG. 11 is a sectional view of the same. In the drawings, the same reference numerals as those in FIGS. 1 to 7 indicate the same components. In this embodiment, the heat radiating member 5 has a heat collecting part 50 in addition to the heat radiating cylinder 51, the heat collecting part 50 is overlapped on the outer surface of the bottom 11 of the case 1, and the heat radiating cylindrical body 51 is It is located above 50. FIGS. 10 and 11 are views showing a specific example of the structure of the heat radiating member 5. The heat radiating member 5 is made of a metal plate having good heat conductivity, for example, an aluminum plate. A fixing arm piece 57, a positioning arm piece 56 and a mounting member fixing arm piece 58. In the heat radiating member 5, the heat collecting part 50 is in surface contact with the outer surface of the bottom 11 of the case 1, and the outer peripheral surface of the heat radiating cylinder 51 is in surface contact with the surface of the heat collecting part 50. For this reason, the heat transfer efficiency from the heat collecting part 50 to the radiating cylinder 51 increases. In the illustrated heat radiating cylinder 51, the heat coupling part 52 with the heat collecting part 50 is flat, so that the efficiency of heat conduction from the heat collecting part 50 to the heat radiating cylinder 51 is further improved. It is desirable to fill a space between the surface of the heat collecting portion 50 and the flat thermal coupling portion 52 with a heat conductive resin such as a silicone resin.
【００２３】電極端子４は電極端子４のバネ部４１を正
特性サーミスタ２の電極２３に接触させるようになって
いる。また、放熱筒体５１は、軸方向の一端側が折曲げ
部５３により集熱部５０に連続し、他端側が集熱部５０
から延び筒部の内周面に折畳まれた折曲げ片５４によっ
て押えられている。The electrode terminal 4 is adapted to bring the spring portion 41 of the electrode terminal 4 into contact with the electrode 23 of the positive temperature coefficient thermistor 2. The radiating cylinder 51 has one end in the axial direction connected to the heat collector 50 by the bent portion 53 and the other end in the heat collector 50.
And is held down by a bent piece 54 folded on the inner peripheral surface of the cylindrical portion.
【００２４】図１２は本考案に係る正特性サーミスタ装
置の別の実施例における平面図を示している。この実施
例の特徴は、ケース１を放熱部材５の放熱筒体５１の軸
長よりも△ｈだけ短くしたことで、放熱筒体５１の軸長
調整により薬液の揮散量を調整できることを示唆してい
る。FIG. 12 is a plan view showing another embodiment of the positive temperature coefficient thermistor device according to the present invention. A feature of this embodiment is that the case 1 is shorter than the axial length of the heat radiating cylinder 51 of the heat radiating member 5 by Δh, thereby suggesting that the volatilization amount of the chemical solution can be adjusted by adjusting the axial length of the heat radiating cylindrical body 51. ing.
【００２５】[0025]
【考案の効果】以上述べたように、本考案に係る正特性
サーミスタ装置において、電極端子は、ケースの凹部内
において正特性サーミスタの電極に重ねられケースの開
口面側から外部に導出されており、放熱部材は放熱筒体
がケースの底部外面の上に配置されているから、ケース
内部への薬液侵入を防止し得る正特性サーミスタ装置を
提供することができる。As described above, in the positive temperature coefficient thermistor device according to the present invention, the electrode terminal is superposed on the positive temperature coefficient thermistor electrode in the concave portion of the case and is led out from the opening side of the case. Since the heat radiating member has the heat radiating cylinder disposed on the outer surface of the bottom of the case, it is possible to provide a positive temperature coefficient thermistor device capable of preventing a chemical solution from entering the inside of the case.
【図１】本考案に係る正特性サーミスタ装置の要部にお
ける分解斜視図である。FIG. 1 is an exploded perspective view of a main part of a positive temperature coefficient thermistor device according to the present invention.
【図２】本考案に係る正特性サーミスタ装置の組立状態
における正面断面図である。FIG. 2 is a front sectional view of the PTC thermistor device according to the present invention in an assembled state.
【図３】本考案に係る正特性サーミスタ装置の組立状態
における平面図である。FIG. 3 is a plan view of the PTC thermistor device according to the present invention in an assembled state.
【図４】本考案に係る正特性サーミスタ装置の組立状態
における底面図である。FIG. 4 is a bottom view of the positive temperature coefficient thermistor device according to the present invention in an assembled state.
【図５】本考案に係る正特性サーミスタ装置の使用状態
を示す図である。FIG. 5 is a diagram illustrating a use state of the PTC thermistor device according to the present invention.
【図６】本考案に係る正特性サーミスタ装置に用いられ
る放熱部材の具体例を示す斜視図である。FIG. 6 is a perspective view showing a specific example of a heat radiating member used in the positive temperature coefficient thermistor device according to the present invention.
【図７】本考案に係る正特性サーミスタ装置に用いられ
る放熱部材の具体例の断面図である。FIG. 7 is a cross-sectional view of a specific example of a heat radiating member used in the positive temperature coefficient thermistor device according to the present invention.
【図８】本考案に係る正特性サーミスタ装置の別の実施
例における分解斜視図である。FIG. 8 is an exploded perspective view of another embodiment of the positive temperature coefficient thermistor device according to the present invention.
【図９】本考案に係る正特性サーミスタ装置の別の実施
例における断面図である。FIG. 9 is a sectional view of another embodiment of the positive temperature coefficient thermistor device according to the present invention.
【図１０】本考案に係る正特性サーミスタ装置に用いら
れる放熱部材の他の実施例の拡大斜視図である。FIG. 10 is an enlarged perspective view of another embodiment of the heat radiating member used in the positive temperature coefficient thermistor device according to the present invention.
【図１１】本考案に係る正特性サーミスタ装置に用いら
れる放熱部材の他の実施例の断面図である。FIG. 11 is a cross-sectional view of another embodiment of a heat radiation member used in the positive temperature coefficient thermistor device according to the present invention.
【図１２】本考案に係る正特性サーミスタ装置の別の実
施例における平面図である。FIG. 12 is a plan view of another embodiment of the positive temperature coefficient thermistor device according to the present invention.
１ ケース ２ 正特性サーミスタ ３、４ 電極端子 ５ 放熱部材 ６ ケース蓋 DESCRIPTION OF SYMBOLS 1 Case 2 Positive characteristic thermistor 3, 4 Electrode terminal 5 Heat dissipation member 6 Case lid
───────────────────────────────────────────────────── フロントページの続き (72)考案者 佐藤 武吉 東京都中央区日本橋１丁目13番１号 テ ィーディーケイ株式会社内 (72)考案者 野原 洋 東京都中央区日本橋１丁目13番１号 テ ィーディーケイ株式会社内 (56)参考文献 特開 平３−145087（ＪＰ，Ａ) 実開 平２−113291（ＪＰ，Ｕ) ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takeyoshi Sato 1-13-1 Nihonbashi, Chuo-ku, Tokyo Inside TDC Corporation (72) Inventor Hiroshi Nohara 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDK (56) References JP-A-3-145087 (JP, A) JP-A-2-113291 (JP, U)
Claims (4)
タと、電極端子と、放熱部材とを有する正特性サーミス
タ装置であって、 前記ケースは、底部と対向する面側が開口面となってい
る凹部を有しており、 前記ケース蓋は、前記ケースの前記開口面を閉塞してお
り、 前記正特性サーミスタは、相対する両面に電極を有し、
前記電極が前記底部及び前記開口面の方向を向くように
前記凹部内に配置されており、 前記電極端子は、前記凹部内において前記正特性サーミ
スタの前記電極に重ねられ前記開口面側から外部に導出
されており、 前記放熱部材は、放熱筒体を有しており、前記放熱筒体は、前記ケースの底部外面上に配置され、
軸方向の両端に折曲げ片を有し、前記折曲げ片が前記ケ
ースの裏面側に折畳まれていること を特徴とする正特性
サーミスタ装置。1. A positive temperature coefficient thermistor device comprising a case, a case lid, a positive temperature coefficient thermistor, an electrode terminal, and a heat radiating member, wherein the case has an opening surface on the side facing the bottom. A concave portion, the case lid closes the opening surface of the case, the positive temperature coefficient thermistor has electrodes on opposite surfaces,
The electrode is disposed in the concave portion so as to face the bottom and the opening surface, and the electrode terminal is overlapped with the electrode of the positive temperature coefficient thermistor in the concave portion and is externally provided from the opening surface side. The heat dissipation member has a heat dissipation cylinder, and the heat dissipation cylinder is disposed on a bottom outer surface of the case,
Bending pieces are provided at both ends in the axial direction, and the bending pieces are
A PTC thermistor device characterized by being folded on the back side of a base .
熱部が前記ケースの底部外面に面接触し、前記放熱筒体
の外周面が前記集熱部の表面に面接触していることを特
徴とする請求項１に記載の正特性サーミスタ装置。2. The heat radiating member has a heat collecting section,
The heat part is in surface contact with the bottom outer surface of the case, and
The outer peripheral surface of the heat collector is in surface contact with the surface of the heat collector.
2. The positive temperature coefficient thermistor device according to claim 1, wherein:
集熱部に連続し、他端側が前記集熱部から延び内周面に
折畳まれた折曲げ片によって押えられていることを特徴
とする請求項２に記載の正特性サーミスタ装置。3. The radiating cylinder body has one end in the axial direction.
Continuing with the heat collecting section, the other end side extends from the heat collecting section to the inner peripheral surface.
Characterized by being held down by folded pieces
The positive temperature coefficient thermistor device according to claim 2, wherein
熱部との間の接触部分に熱伝導性樹脂を充填したことを
特徴とする請求項１、２または３に記載の正特性サーミ
スタ装置。 4. The radiating cylinder and the case or the collector.
Make sure that the heat conductive resin is filled in the contact area between
The positive temperature coefficient thermistor according to claim 1, 2 or 3,
Star device .
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991057211U JP2569725Y2 (en) | 1991-06-26 | 1991-06-26 | Positive characteristic thermistor device |
| KR1019930703050A KR0143879B1 (en) | 1991-06-26 | 1992-06-26 | Thermister device of positive characteristic |
| GB9325199A GB2272795B (en) | 1991-06-26 | 1992-06-26 | Positive characteristic thermistor device |
| BR9206185A BR9206185A (en) | 1991-06-26 | 1992-06-26 | Positive characteristic thermistor device |
| EP92913390A EP0591537B1 (en) | 1991-06-26 | 1992-06-26 | Thermister device of positive characteristic |
| PCT/JP1992/000811 WO1993000689A1 (en) | 1991-06-26 | 1992-06-26 | Thermister device of positive characteristic |
| DE4292013T DE4292013T1 (en) | 1991-06-26 | 1992-06-26 | Device for a thermistor with a positive characteristic |
| AU21668/92A AU659855B2 (en) | 1991-06-26 | 1992-06-26 | Thermister device of positive characteristic |
| DE4292013A DE4292013B8 (en) | 1991-06-26 | 1992-06-26 | Device with a PTC resistor and a heater |
| ES09350004A ES2100113B1 (en) | 1991-06-26 | 1992-06-26 | POSITIVE CHARACTERISTIC THERMISTOR DEVICE. |
| MYPI92001469A MY110314A (en) | 1991-06-26 | 1992-08-17 | Positive characteristic thermistor device |
| GR960403354T GR3022328T3 (en) | 1991-06-26 | 1997-01-22 | Thermister device of positive characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991057211U JP2569725Y2 (en) | 1991-06-26 | 1991-06-26 | Positive characteristic thermistor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0518003U JPH0518003U (en) | 1993-03-05 |
| JP2569725Y2 true JP2569725Y2 (en) | 1998-04-28 |
Family
ID=13049187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991057211U Expired - Lifetime JP2569725Y2 (en) | 1991-06-26 | 1991-06-26 | Positive characteristic thermistor device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2569725Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007151488A (en) * | 2005-12-07 | 2007-06-21 | Oizumi Seisakusho:Kk | Heater for liquid evaporator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03145087A (en) * | 1989-10-30 | 1991-06-20 | Matsushita Electric Ind Co Ltd | Heating apparatus using positive thermistor |
-
1991
- 1991-06-26 JP JP1991057211U patent/JP2569725Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007151488A (en) * | 2005-12-07 | 2007-06-21 | Oizumi Seisakusho:Kk | Heater for liquid evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0518003U (en) | 1993-03-05 |
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