JPH0331041Y2 - - Google Patents
Info
- Publication number
- JPH0331041Y2 JPH0331041Y2 JP16634585U JP16634585U JPH0331041Y2 JP H0331041 Y2 JPH0331041 Y2 JP H0331041Y2 JP 16634585 U JP16634585 U JP 16634585U JP 16634585 U JP16634585 U JP 16634585U JP H0331041 Y2 JPH0331041 Y2 JP H0331041Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature coefficient
- positive temperature
- terminal
- electrode
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 13
- 229910052754 neon Inorganic materials 0.000 description 5
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、電子蚊取器等に使用される正特性サ
ーミスタ装置に関し、正特性サーミスタの両面側
に配置される一対の電極端子のうち、電極端子の
一方に過電流溶断部となる狭幅部を設けた正特性
サーミスタ装置において、狭幅部を設けた電極端
子に、給電端子とは独立して電極対接部から外部
に引出される引出端子部を設け、この引出端子部
と電極端子の他方の給電端子との間に過電流溶断
検出回路を接続することにより、狭幅部における
過電流溶断を確実に検出できるようにしたもので
ある。[Detailed description of the invention] Industrial field of application The present invention relates to a positive temperature coefficient thermistor device used in an electronic mosquito repellent, etc. In a positive temperature coefficient thermistor device that has a narrow width part that serves as an overcurrent fusing part on one side of the electrode terminal, the electrode terminal with the narrow width part has a lead-out terminal that is pulled out from the electrode contact part independently from the power supply terminal. By providing a portion and connecting an overcurrent blowout detection circuit between this lead terminal portion and the other power supply terminal of the electrode terminal, overcurrent blowout in the narrow portion can be reliably detected.
従来の技術
この種の正特性サーミスタ装置は、正特性サー
ミスタが劣化した場合、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、電極端子
に過電流溶断部となる狭幅部を設けた正特性サー
ミスタ装置が提案されている。第６図及び第７図
はその従来例を示し、アルミナ等の耐熱絶縁材料
で成るケース１の凹溝２内に弾性電極端子３を配
置し、この弾性電極端子３の上に、厚さ方向の両
面に電極４１，４２を被着形成した正特性サーミ
スタ４、電極端子５及びマイカ等でなる耐熱性の
絶縁板６を順次重ねてゆき、絶縁板６の上に重ね
られた放熱板７を、弾性電極端子３の弾発力に抗
しつつ、ケース１の方向に押圧し、放熱板７に設
けた取付腕７１〜７４をケース１の外壁に沿つて
折曲げることにより、全体を弾力的に支持固定し
た構造となつている。放熱板７は薬台となる部分
で、ステンレス板材等によつて形成される。PRIOR ART In this type of PTC thermistor device, when the PTC thermistor deteriorates, an overcurrent flows during thermal equilibrium when the current should normally be low, causing damage to the PTC thermistor, abnormal heat generation, and accompanying fire. This will result in an extremely dangerous situation. Therefore, a positive temperature coefficient thermistor device has been proposed in which an electrode terminal is provided with a narrow portion that serves as an overcurrent fusing portion. FIGS. 6 and 7 show a conventional example, in which an elastic electrode terminal 3 is arranged in a groove 2 of a case 1 made of a heat-resistant insulating material such as alumina. A positive temperature coefficient thermistor 4 having electrodes 41 and 42 adhered to both sides thereof, an electrode terminal 5, and a heat-resistant insulating plate 6 made of mica or the like are sequentially stacked on top of each other. , by pressing in the direction of the case 1 while resisting the elastic force of the elastic electrode terminal 3 and bending the mounting arms 71 to 74 provided on the heat sink 7 along the outer wall of the case 1, the whole becomes elastic. It has a structure that is supported and fixed. The heat dissipation plate 7 is a part that serves as a medicine stand, and is made of a stainless steel plate or the like.
弾性電極端子３は、正特性サーミスタ４の電極
４１に圧接する弾性電極対接部３１と、この電極
対接部３１から延長された薄板平板状の給電端子
３２とを有し、給電端子３２をケース１に形成し
た孔１０２を通つて底部から外部に導出してあ
る。 The elastic electrode terminal 3 has an elastic electrode contacting portion 31 that presses against the electrode 41 of the positive temperature coefficient thermistor 4, and a thin plate-shaped power supply terminal 32 extending from the electrode contacting portion 31. It is led out from the bottom through a hole 102 formed in the case 1.
電極端子５は、正特性サーミスタ４の電極４２
に対接する電極対接部５１と給電端子５２とを、
電極対接部５１の側方に間隙をおいて形成された
狭幅部５３によつて連続させ、この狭幅部５３を
過電流溶断部とした構造となつている。給電端子
５２は狭幅部５３と同じ薄い板厚の平板状となつ
ていて、ケース１に形成した孔１０１を通つてケ
ース底部から外部に導出される。 The electrode terminal 5 is connected to the electrode 42 of the positive temperature coefficient thermistor 4.
The electrode contact portion 51 and the power supply terminal 52 that are in contact with the
The structure is such that the electrode contacting part 51 is continuous by a narrow part 53 formed with a gap on the side, and this narrow part 53 is used as an overcurrent fusing part. The power supply terminal 52 has a flat plate shape with the same thickness as the narrow part 53, and is led out from the bottom of the case 1 through a hole 101 formed in the case 1.
給電端子３２と給電端子５２との間に所定の電
圧を印加すると、電極端子３−５を通して正特性
サーミスタ４の電極４１−４２間に電圧が印加さ
れて、正特性サーミスタ４が発熱動作をする。正
特性サーミスタ４に発生した熱は電極端子５、絶
縁板６を介して放熱板７に伝達され、放熱板７の
表面上に載置された殺虫剤８（第７図参照）が加
熱される。 When a predetermined voltage is applied between the power supply terminal 32 and the power supply terminal 52, a voltage is applied between the electrodes 41-42 of the PTC thermistor 4 through the electrode terminals 3-5, and the PTC thermistor 4 generates heat. . The heat generated in the positive temperature coefficient thermistor 4 is transmitted to the heat sink 7 via the electrode terminal 5 and the insulating plate 6, and the insecticide 8 placed on the surface of the heat sink 7 (see FIG. 7) is heated. .
正特性サーミスタ４が劣化する等の原因で、本
来、低電流となるべき熱平衡時に過電流が流れる
と、狭幅部５３が過電流によつて溶断し、正特性
サーミスタ４に対する給電路が遮断されるので、
正特性サーミスタ４の破損、異常発熱、それに伴
う火災等が防止される。 If an overcurrent flows during thermal equilibrium, which should normally be a low current, due to deterioration of the PTC thermistor 4, the narrow portion 53 will melt due to the overcurrent, and the power supply path to the PTC thermistor 4 will be cut off. Because
Damage to the positive temperature coefficient thermistor 4, abnormal heat generation, and accompanying fires are prevented.
考案が解決しようとする問題点
しかし、上述した正特性サーミスタ装置は、狭
幅部５３が過電流によつて溶断されても、それを
外部から知ることができず、使用上、極めて不便
であるという問題点があつた。Problems to be Solved by the Invention However, in the above-mentioned positive temperature coefficient thermistor device, even if the narrow portion 53 is fused due to overcurrent, it cannot be known from the outside, which is extremely inconvenient in use. There was a problem.
問題点を解決するための手段
上述する従来の問題点を解決するため、本考案
は、厚み方向の両面に電極を形成した正特性サー
ミスタの両面側に、前記電極に対接する一対の電
極端子を配置し、前記電極端子の一方の、給電端
子から電極対接部に至る給電路の途中に、過電流
溶断部となる狭幅部を設けた正特性サーミスタ装
置において、前記電極端子の一方に、前記給電端
子とは独立して前記電極対接部から引出された引
出端子部を設け、この引出端子部と電極端子の他
方の給電端子との間に過電流溶断検出回路を接続
したことを特徴とする。Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention provides a positive temperature coefficient thermistor in which electrodes are formed on both sides in the thickness direction, and a pair of electrode terminals that are in contact with the electrodes are provided on both sides of the positive temperature coefficient thermistor. In a positive temperature coefficient thermistor device, in which a narrow width portion serving as an overcurrent fusing portion is provided in the middle of a power supply path from the power supply terminal to the electrode contact portion on one of the electrode terminals. A lead-out terminal part drawn out from the electrode contact part independently of the power supply terminal is provided, and an overcurrent fusing detection circuit is connected between this lead-out terminal part and the other power supply terminal of the electrode terminals. shall be.
作 用
上述のように、正特性サーミスタの両面側に配
置される電極端子の一方に、過電流溶断部となる
狭幅部を設けた正特性サーミスタ装置において、
狭幅部を設けた電極端子に、給電端子とは独立し
て電極対接部から外部に引出される引出端子部を
設け、この引出端子部と電極端子の他方の給電端
子との間に過電流溶断検出回路を接続すると、狭
幅部が正常な間、過電流溶断検出回路には正特性
サーミスタに印加されている電圧がそのまま加わ
る。ところが、狭幅部が過電流によつて溶断する
と、正特性サーミスタに加わる電圧が消滅するの
と同時に、過電流溶断検出回路に加わる電圧も消
滅する。従つて、印加電圧の有無によつて、過電
流溶断の有無を検出することができる。Function As mentioned above, in a positive temperature coefficient thermistor device in which a narrow part that becomes an overcurrent fusing part is provided on one of the electrode terminals arranged on both sides of the positive temperature coefficient thermistor,
An electrode terminal with a narrow width part is provided with a pull-out terminal part that is drawn out from the electrode contact part independently of the power supply terminal, and there is no overload between this pull-out terminal part and the other power supply terminal of the electrode terminal. When the current fusing detection circuit is connected, the voltage applied to the positive characteristic thermistor is directly applied to the overcurrent fusing detection circuit while the narrow width portion is normal. However, when the narrow portion melts down due to overcurrent, the voltage applied to the positive temperature coefficient thermistor disappears, and at the same time, the voltage applied to the overcurrent blowout detection circuit also disappears. Therefore, depending on the presence or absence of applied voltage, it is possible to detect the presence or absence of overcurrent fusing.
実施例
第１図は本考案に係る正特性サーミスタ装置の
分解斜視図、第２図は同じく組立状態で下面側か
ら見た斜視図、第３図は同じくその組立断面図、
第４図は第３図A1−A1線上における断面図であ
る。図において、第６図及び第７図と同一の参照
符号は同一性ある構成部分を示している。狭幅部
５３を設けた電極端子５は、給電端子５２とは独
立して、電極対接部５１の周辺部に引出端子部５
４を折曲げ形成し、この引出端子部５４をケース
１に設けた通孔１０５を通してケース外部に引出
してある。そして、この引出端子部５４と電極端
子３の給電端子３２との間に、過電流溶断検出回
路９を接続してある。この実施例では、過電流溶
断検出回路９は抵抗９１とネオン管９２とによる
ランプ回路として形成されている。引出端子５４
及び給電端子３２への接続手段としてはスポツト
溶接等の耐熱信頼性の高い接続方法をとることが
望ましい。Embodiment FIG. 1 is an exploded perspective view of a positive temperature coefficient thermistor device according to the present invention, FIG. 2 is a perspective view of the PTC thermistor device in an assembled state as seen from the bottom side, and FIG. 3 is an assembled sectional view of the device.
FIG. 4 is a sectional view taken along line A1 - A1 in FIG. 3. In the figure, the same reference numerals as in FIGS. 6 and 7 indicate the same components. The electrode terminal 5 provided with the narrow width portion 53 has a lead-out terminal portion 5 at the periphery of the electrode contact portion 51 independently of the power supply terminal 52.
4 is bent and formed, and this lead-out terminal portion 54 is drawn out to the outside of the case through a through hole 105 provided in the case 1. An overcurrent blowout detection circuit 9 is connected between the lead terminal portion 54 and the power supply terminal 32 of the electrode terminal 3. In this embodiment, the overcurrent blowout detection circuit 9 is formed as a lamp circuit including a resistor 91 and a neon tube 92. Pull-out terminal 54
As a connection means to the power supply terminal 32, it is desirable to use a connection method with high heat resistance and reliability such as spot welding.
１０は電極端子３の給電端子３２にスポツト溶
接等によつて接続された耐熱性絶縁被覆を施した
リード線、１１は電極端子５の給電端子５２にス
ポツト溶接された同様のリード線である。 Reference numeral 10 designates a lead wire coated with heat-resistant insulation, which is connected to the power supply terminal 32 of the electrode terminal 3 by spot welding or the like, and 11 is a similar lead wire that is spot welded to the power supply terminal 52 of the electrode terminal 5.
第５図は本考案に係る正特性サーミスタ装置の
電気回路図であり、電源１２から供給される電圧
を、電極端子５側では狭幅部５３による過電流溶
断部を通して、また電極端子３側ではそのまま、
正特性サーミスタ４に印加して駆動すると共に、
正特性サーミスタ４の端子間に過電流溶断検出回
路９を接続した回路となる。従つて、狭幅部５３
が正常な間は、過電流溶断検出回路９には正特性
サーミスタ４に印加されている電圧がそのまま加
わり、ネオン管９２が点灯する。 FIG. 5 is an electric circuit diagram of the PTC thermistor device according to the present invention, in which the voltage supplied from the power supply 12 is passed through the overcurrent fusing section by the narrow part 53 on the electrode terminal 5 side, and on the electrode terminal 3 side. As it is,
While applying the voltage to the positive characteristic thermistor 4 to drive it,
This circuit has an overcurrent blowout detection circuit 9 connected between the terminals of the positive characteristic thermistor 4. Therefore, the narrow portion 53
While normal, the voltage applied to the positive temperature coefficient thermistor 4 is directly applied to the overcurrent blowout detection circuit 9, and the neon tube 92 lights up.
ところが、狭幅部５３が過電流によつて溶断す
ると、正特性サーミスタ４に加わる電圧が消滅す
るのと同時に、過電流溶断検出回路９に加わる電
圧も消滅し、ネオン管９２が消灯する。 However, when the narrow portion 53 melts down due to an overcurrent, the voltage applied to the positive temperature coefficient thermistor 4 disappears, and at the same time, the voltage applied to the overcurrent blowout detection circuit 9 also disappears, and the neon tube 92 goes out.
従つて、ネオン管９２の点灯及び消灯から、過
電流溶断の有無を検出することができる。 Therefore, the presence or absence of overcurrent blowout can be detected from whether the neon tube 92 is turned on or off.
しかも、電極対接部５１の周辺部に引出端子部
５４を折曲げ形成し、この引出端子部５４をケー
ス１に設けた通孔１０５を通してケース外部に引
出してあるので、過電流によつて狭幅部５３が溶
断して、電極対接部５１が給電端子５２から切離
された場合でも、電極対接部５１が正特性サーミ
スタ４の上で移動することがない。従つて、過電
流溶断後に電極対接部５１が給電端子５２の溶断
端部に電気的に接触するのを防止することができ
る。 Moreover, since the lead-out terminal part 54 is bent and formed around the electrode contact part 51 and drawn out to the outside of the case through the through hole 105 provided in the case 1, the lead-out terminal part 54 is drawn out to the outside of the case through the through hole 105 provided in the case 1. Even if the width portion 53 is fused and the electrode contact portion 51 is separated from the power supply terminal 52, the electrode contact portion 51 does not move on the PTC thermistor 4. Therefore, it is possible to prevent the electrode contact portion 51 from electrically contacting the fusing end portion of the power supply terminal 52 after the overcurrent fusing.
この正特性サーミスタ装置を電子蚊取器等に使
用する場合には、更に外装ケース等に組込むのが
普通である。このような外装ケース組込み構造を
取る場合は、ネオン管９２を外装ケースの外部か
ら見えるような位置にセツトする。 When this positive temperature coefficient thermistor device is used in an electronic mosquito repellent or the like, it is common to further incorporate it into an external case or the like. When adopting such an exterior case built-in structure, the neon tube 92 is set at a position where it can be seen from the outside of the exterior case.
１０３は凹溝２を開口させたケース１の開口端
面１０４上に形成された凹部である。この凹部１
０３は、開口端面１０４の狭幅部５３と対応する
位置に、凹溝２から独立するように区画形成され
ている。組立状態では、第４図に示すように、凹
部１０３内に電極端子５の狭幅部５３が位置し、
その上を絶縁板６で閉塞した構造となる。 103 is a recess formed on the open end surface 104 of the case 1 in which the groove 2 is opened. This recess 1
03 is formed at a position corresponding to the narrow width portion 53 of the opening end surface 104 so as to be independent from the groove 2. In the assembled state, as shown in FIG. 4, the narrow portion 53 of the electrode terminal 5 is located within the recess 103;
The structure is such that the top thereof is closed with an insulating plate 6.
このような構造であると、狭幅部５３が過電流
によつて溶断した場合、溶融金属は凹部１０３内
に留どまり、正特性サーミスタ４のある凹溝２内
に飛散することがない。従つて、溶融金属が正特
性サーミスタ４の外周面等に付着することによる
電極４１−４２間短絡を阻止することができる。 With such a structure, when the narrow portion 53 is fused due to an overcurrent, the molten metal remains within the recess 103 and does not scatter into the recess 2 where the positive temperature coefficient thermistor 4 is located. Therefore, a short circuit between the electrodes 41 and 42 due to adhesion of molten metal to the outer circumferential surface of the PTC thermistor 4 can be prevented.
また、電極端子５は、狭幅部５３の略中間部
に、その上に重ねられる絶縁板６から離間するよ
うに、下向きに凹陥する湾曲部５３１を設け、こ
の湾曲部５３１を凹部１０３内に位置させてあ
る。このような構造であると、前述の溶融金属の
飛散防止と共に、狭幅部５３を湾曲部５３１の部
分でその凹陥量だけ絶縁板６から離間させ、狭幅
部５３から絶縁板６への熱放散を低下させ、過電
流溶断時間を短縮することができる。 Further, the electrode terminal 5 is provided with a curved portion 531 that is recessed downward so as to be spaced from the insulating plate 6 stacked thereon, approximately in the middle of the narrow width portion 53, and this curved portion 531 is inserted into the recess 103. It is located. With such a structure, in addition to preventing the above-mentioned molten metal from scattering, the narrow portion 53 is separated from the insulating plate 6 by the amount of the recess at the curved portion 531, thereby reducing the heat transfer from the narrow portion 53 to the insulating plate 6. It is possible to reduce the dissipation and shorten the overcurrent fusing time.
考案の効果
以上述べたように、本考案は、正特性サーミス
タの両面側に配置される一対の電極端子のうち、
電極端子の一方に過電流溶断部となる狭幅部を設
けた正特性サーミスタ装置において、狭幅部を設
けた電極端子に、給電端子とは独立して電極対接
部から外部に引出される引出端子部を設け、この
引出端子部と電極端子の他方の給電端子との間に
過電流溶断検出回路を接続することにより、狭幅
部における過電流溶断を確実に検出できるように
した正特性サーミスタ装置を提供することができ
る。Effects of the Invention As described above, the present invention provides a positive temperature coefficient thermistor with a pair of electrode terminals arranged on both sides of the positive temperature coefficient thermistor.
In a positive temperature coefficient thermistor device in which one of the electrode terminals is provided with a narrow part that serves as an overcurrent fusion part, the electrode terminal with the narrow part is drawn out from the electrode contact part independently of the power supply terminal. By providing a lead-out terminal part and connecting an overcurrent blowout detection circuit between this lead-out terminal part and the other power supply terminal of the electrode terminal, positive characteristics ensure that overcurrent blowout in narrow parts can be detected. A thermistor device can be provided.
第１図は本考案に係る正特性サーミスタ装置の
分解斜視図、第２図は同じく組立状態で下面側か
ら見た斜視図、第３図は同じくその組立断面図、
第４図は第３図A1−A1線上における断面図、第
５図は同じくその電気的等価回路図、第６図は従
来の正特性サーミスタ装置の分解斜視図、第７図
は同じくその組立断面図である。
１……ケース、３……電極端子、３２……給電
端子、５……電極端子、４……正特性サーミス
タ、６……絶縁板、７……放熱板、５１……電極
対接部、５２……給電端子、５３……狭幅部、５
４……引出端子部。
FIG. 1 is an exploded perspective view of a PTC thermistor device according to the present invention, FIG. 2 is a perspective view of the PTC thermistor device in an assembled state seen from the bottom side, and FIG. 3 is an assembled cross-sectional view of the same.
Figure 4 is a sectional view taken along line A1 - A1 in Figure 3, Figure 5 is its electrical equivalent circuit diagram, Figure 6 is an exploded perspective view of a conventional positive temperature coefficient thermistor device, and Figure 7 is its same. It is an assembled sectional view. DESCRIPTION OF SYMBOLS 1... Case, 3... Electrode terminal, 32... Power supply terminal, 5... Electrode terminal, 4... Positive characteristic thermistor, 6... Insulating plate, 7... Heat sink, 51... Electrode contact part, 52...Power supply terminal, 53...Narrow width part, 5
4...Output terminal section.
Claims (1)
ミスタの前記両面側に、前記電極に対接する一
対の電極端子を配置し、前記電極端子の一方
の、給電端子から電極対接部に至る給電路の途
中に、過電流溶断部となる狭幅部を設けた正特
性サーミスタ装置において、前記電極端子の一
方に、前記給電端子とは独立して前記電極対接
部から引出された引出端子部を設け、この引出
端子部と電極端子の他方の給電端子との間に過
電流溶断検出回路を接続したことを特徴とする
正特性サーミスタ装置。 (2) 前記過電流溶断検出回路は、ランプ回路でな
ることを特徴とする実用新案登録請求の範囲第
１項に記載の正特性サーミスタ装置。 (3) 前記正特性サーミスタ及び前記一対の電極端
子は、ケースに設けた凹溝内で重ね合せると共
に、前記凹溝の開口端面側に絶縁して重ねら
れ、かつ、前記ケースに固定される放熱板によ
り、前記ケース内に弾力的に支持されているこ
とを特徴とする実用新案登録請求の範囲第１項
または第２項に記載の正特性サーミスタ装置。[Claims for Utility Model Registration] (1) A positive temperature coefficient thermistor in which electrodes are formed on both sides in the thickness direction is provided with a pair of electrode terminals facing the electrodes on both sides, and one of the electrode terminals is arranged to supply power. In a positive temperature coefficient thermistor device in which a narrow width portion serving as an overcurrent fusing portion is provided in the middle of a power supply path from a terminal to an electrode contact portion, the electrode pair is connected to one of the electrode terminals independently of the power supply terminal. 1. A positive temperature coefficient thermistor device comprising: a lead-out terminal portion drawn out from the contact portion; and an overcurrent fusing detection circuit connected between the lead-out terminal portion and the other power supply terminal of the electrode terminal. (2) The positive temperature coefficient thermistor device according to claim 1, wherein the overcurrent fusing detection circuit is a lamp circuit. (3) The positive temperature coefficient thermistor and the pair of electrode terminals are overlapped in a groove provided in the case, and are insulated and overlapped on the open end side of the groove, and are fixed to the case. The positive temperature coefficient thermistor device according to claim 1 or 2, wherein the PTC thermistor device is elastically supported within the case by a plate.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16634585U JPH0331041Y2 (en) | 1985-10-29 | 1985-10-29 | |
| US06/910,415 US4728779A (en) | 1985-09-27 | 1986-09-22 | PTC heating device |
| GB08622891A GB2181629B (en) | 1985-09-27 | 1986-09-23 | Ptc heating device |
| AU63067/86A AU592371B2 (en) | 1985-09-27 | 1986-09-23 | Ptc heating device |
| NZ217682A NZ217682A (en) | 1985-09-27 | 1986-09-24 | Ptc heater as insect exterminator |
| IT865217A IT1201652B (en) | 1985-09-27 | 1986-09-25 | HEATING DEVICE WITH POSITIVE TEMPERATURE COEFFICIENT PTC |
| BR8604658A BR8604658A (en) | 1985-09-27 | 1986-09-26 | HEATING DEVICE WITH CTP |
| KR1019860008069A KR940005459B1 (en) | 1985-09-27 | 1986-09-26 | Ptc heating device |
| SG1097/91A SG109791G (en) | 1985-09-27 | 1991-12-28 | Ptc heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16634585U JPH0331041Y2 (en) | 1985-10-29 | 1985-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6274301U JPS6274301U (en) | 1987-05-13 |
| JPH0331041Y2 true JPH0331041Y2 (en) | 1991-07-01 |
Family
ID=31097227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16634585U Expired JPH0331041Y2 (en) | 1985-09-27 | 1985-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0331041Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000689A1 (en) * | 1991-06-26 | 1993-01-07 | Tdk Corporation | Thermister device of positive characteristic |
-
1985
- 1985-10-29 JP JP16634585U patent/JPH0331041Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993000689A1 (en) * | 1991-06-26 | 1993-01-07 | Tdk Corporation | Thermister device of positive characteristic |
| GB2272795A (en) * | 1991-06-26 | 1994-05-25 | Tdk Corp | Thermister device of positive characteristic |
| GB2272795B (en) * | 1991-06-26 | 1995-07-12 | Tdk Corp | Positive characteristic thermistor device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6274301U (en) | 1987-05-13 |
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