JP2842189B2 - Polarized capacitor with reverse voltage application display function - Google Patents
Polarized capacitor with reverse voltage application display functionInfo
- Publication number
- JP2842189B2 JP2842189B2 JP5327114A JP32711493A JP2842189B2 JP 2842189 B2 JP2842189 B2 JP 2842189B2 JP 5327114 A JP5327114 A JP 5327114A JP 32711493 A JP32711493 A JP 32711493A JP 2842189 B2 JP2842189 B2 JP 2842189B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- reverse voltage
- heating element
- diode
- display function
- 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
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は有極性コンデンサに関
し、特に有極性コンデンサに逆方向の電圧が印加された
ことを表示する逆電圧印加表示機能を付加した有極性コ
ンデンサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polar capacitor, and more particularly to a polar capacitor having a reverse voltage application display function for displaying that a reverse voltage is applied to a polar capacitor.
【０００２】[0002]
【従来の技術】従来、コンデンサは直流電源線路に混入
するリプルやノイズを除去するために直流電源線路の両
極間に挿入して使用されている。このようなコンデンサ
の中には、電源線路へ外来ノイズが印加されコンデンサ
が短絡したときに短絡電流による発熱を防止するためヒ
ューズを一体構成にしたもの、更には短絡を外見で判断
できるようにするため、ヒューズの溶断と共に発光ダイ
オードを点灯させるようにした警報付コンデンサも提案
されている。（特開平２−２０００９号公報参照） また、同様の目的で、逆極性時に順方向となる発光ダイ
オードと抵抗の直列回路をコンデンサと並列に取り付け
た逆極性表示付コンデンサも提案されている。（特開平
３−１０５２６号公報参照）2. Description of the Related Art Hitherto, a capacitor has been used by being inserted between both poles of a DC power supply line in order to remove ripples and noise mixed in the DC power supply line. Among such capacitors, a fuse is integrally formed to prevent heat generation due to a short-circuit current when external noise is applied to the power supply line and the capacitor is short-circuited. For this reason, a capacitor with an alarm for lighting a light emitting diode when a fuse is blown has been proposed. For the same purpose, there is also proposed a capacitor with a reverse polarity display in which a series circuit of a light emitting diode and a resistor having a forward direction at the time of reverse polarity is mounted in parallel with a capacitor. (See JP-A-3-10526)
【発明が解決しようとする課題】従来の警報付コンデン
サにおいては、直流電源線路の極性と逆にコンデンサを
接続した場合に、コンデンサと直列に接続されその短絡
時に流れる電流によって溶断するヒューズと、ヒューズ
の溶断を検知しその接点を閉じるスイッチと、そのスイ
ッチの動作により点灯する発光ダイオードからなる短絡
表示回路とを具備する構成となっている。In a conventional capacitor with an alarm, when a capacitor is connected in reverse to the polarity of a DC power supply line, a fuse connected in series with the capacitor and blown by a current flowing when the capacitor is short-circuited, The switch comprises a switch for detecting the fusing and closing the contact, and a short-circuit display circuit comprising a light emitting diode which is turned on by the operation of the switch.
【０００３】ところが、このコンデンサは直流電源線路
の極性と逆にコンデンサを接続した場合に、短絡時に流
れる電流によりヒューズが溶断するため、これ以降コン
デンサが使用不能となる欠点があった。However, this capacitor has a drawback that when the capacitor is connected in reverse to the polarity of the DC power supply line, the fuse blows due to the current flowing at the time of short-circuit, so that the capacitor cannot be used thereafter.
【０００４】また、特開平３−１０５２６号公報に開示
されている逆極性表示機能では直流電源線路の外来ノイ
ズによる一時的な短絡電流で発光ダイオードは点灯する
が外来ノイズが除去されると発光ダイオードが滅火する
ため、累積した短絡電流によるコンデンサの劣化を検出
できない欠点があった。In the reverse polarity display function disclosed in JP-A-3-10526, the light emitting diode is turned on by a temporary short-circuit current due to external noise in the DC power supply line, but when the external noise is removed, the light emitting diode is turned on. However, there is a disadvantage that deterioration of the capacitor due to the accumulated short-circuit current cannot be detected.
【０００５】[0005]
【課題を解決するための手段】本発明の逆電圧印加表示
機能付有極性コンデンサは、有極性コンデンサの陽極端
子と陰極端子との間に直列接続されたダイオードと発熱
体を有し、前記ダイオードのカソードは前記有極性コン
デンサの陽極端子に接続され、前記発熱体の第１の端子
は前記ダイオードのアノードに接続され、前記発熱体の
第２の端子は前記有極性コンデンサの陰極端子に接続さ
れ、前記有極性コンデンサと前記ダイオードと前記発熱
体とを外装樹脂で被覆して当該外装樹脂の表面で前記発
熱体部分に感熱フィルムを付着したことを特徴としてい
る。According to the present invention, there is provided a polar capacitor having a reverse voltage application display function, comprising a diode and a heating element connected in series between an anode terminal and a cathode terminal of the polar capacitor. Is connected to an anode terminal of the polar capacitor, a first terminal of the heating element is connected to an anode of the diode, and a second terminal of the heating element is connected to a cathode terminal of the polar capacitor. The polar capacitor, the diode, and the heating element are covered with an exterior resin, and a heat-sensitive film is attached to the heating element on the surface of the exterior resin.
【０００６】[0006]
【実施例】以下実施例について本発明の説明をする。The present invention will be described below with reference to examples.
【０００７】図１は、本発明の逆電圧表示機能付有極性
コンデンサの一実施例の構成を示す回路構成図である。FIG. 1 is a circuit diagram showing the configuration of an embodiment of a polar capacitor having a reverse voltage display function according to the present invention.
【０００８】有極コンデンサ２の陽極のリード線３はダ
イオード５のカソードと接続され、陰極のリード線４は
発熱体６に接続されている。ダイオード５のアノードは
発熱体６と接続されている。有極性コンデンサ２，リー
ド線３と４，ダイオード５，発熱体６は外装樹脂１で覆
れている。発熱体６の上面の外装樹脂には感熱フィルム
７が接着されている。[0008] The anode lead 3 of the polarized capacitor 2 is connected to the cathode of the diode 5, and the cathode lead 4 is connected to the heating element 6. The anode of the diode 5 is connected to the heating element 6. The polar capacitor 2, the lead wires 3 and 4, the diode 5, and the heating element 6 are covered with the exterior resin 1. A heat-sensitive film 7 is adhered to the exterior resin on the upper surface of the heating element 6.
【０００９】次に、本実施例の動作について説明する。
本発明に係る逆電圧表示機能付有極性コンデンサは、通
常の極性状態で使用されているとき交流成分を除去する
動作をする。この状態では、直流電源線路の正極性側に
リード線３，負極性側にリード線４が接続されているた
め、ダイオード５には逆方向に電圧が印加されるため電
流が流れず、発熱体６にも同様に電流が流れない。Next, the operation of this embodiment will be described.
The polar capacitor with a reverse voltage display function according to the present invention operates to remove an AC component when used in a normal polarity state. In this state, the lead wire 3 is connected to the positive polarity side of the DC power supply line, and the lead wire 4 is connected to the negative polarity side. Similarly, no current flows through 6.
【００１０】次に、コンデンサ２に直流電源線路の逆電
圧が印加された場合、リード線３が負極性にリード４が
正極性となりダイオード５は順方向に電圧が印加される
ためダイオード５，発熱体６に電流が流れる。発熱体６
は、電流により発熱し、発熱により感熱フィルム７が熱
変化により変色する。Next, when a reverse voltage of the DC power supply line is applied to the capacitor 2, the lead wire 3 becomes negative and the lead 4 becomes positive, and a voltage is applied to the diode 5 in the forward direction. Electric current flows through the body 6. Heating element 6
Generates heat due to an electric current, and the heat-sensitive film 7 is discolored by a heat change due to the heat generation.
【００１１】感熱フィルム７の変色によりコンデンサ２
の逆電圧印加が表示されるため、外部よりそれを知るこ
とができる。The discoloration of the heat-sensitive film 7 causes the capacitor 2
Is displayed, so that it can be known from outside.
【００１２】また、コンデンサ２にノイズ等による電圧
が一時的に逆電圧となって印加された場合でも、ダイオ
ード５，発熱体６に電流が流れるため感熱フィルム７は
変色する。従って、一時的な逆電圧であっても、その累
積を感熱フィルム７の変色により知ることができる。Further, even when a voltage due to noise or the like is temporarily applied to the capacitor 2 as a reverse voltage, a current flows through the diode 5 and the heating element 6, so that the heat-sensitive film 7 is discolored. Therefore, even if it is a temporary reverse voltage, the accumulation can be known by the discoloration of the heat-sensitive film 7.
【００１３】[0013]
【発明の効果】以上説明したように本発明は、有極性コ
ンデンサの逆電圧印加表示を感熱フィルムにより行って
いるので、電子機器製造時にコンデンサが誤って逆電圧
が印加される方向に実装されてしまった場合でも当該コ
ンデンサを劣化させずに、かつまた、容易にこれを発見
することができ、更に、正常極性の実装ではあるが、一
時的なノイズ電圧が逆電圧となって累積するような場合
でも容易にこれを発見することができる効果を有する。As described above, according to the present invention, the indication of the application of the reverse voltage of the polar capacitor is performed by the heat-sensitive film. Even if it has, the capacitor can be easily detected without deteriorating the capacitor.In addition, although it is a normal polarity implementation, a temporary noise voltage may be accumulated as a reverse voltage. This has the effect that this can be easily found even in the case.
【図１】本発明の一実施例の構成を示す回路構成図。FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention.
１ 外装樹脂 ２ コンデンサ ３ リード線（陽極） ４ リード線（陰極） ５ ダイオード ６ 発熱体 ７ 感熱フィルム DESCRIPTION OF SYMBOLS 1 Exterior resin 2 Capacitor 3 Lead wire (anode) 4 Lead wire (cathode) 5 Diode 6 Heating element 7 Thermal film
Claims (1)
との間に直列接続されたダイオードと発熱体を有し、 前記ダイオードのカソードは前記有極性コンデンサの陽
極端子に接続され、前記発熱体の第１の端子は前記ダイ
オードのアノードに接続され、前記発熱体の第２の端子
は前記有極性コンデンサの陰極端子に接続され、 前記有極性コンデンサと前記ダイオードと前記発熱体と
を外装樹脂で被覆して当該外装樹脂の表面で前記発熱体
部分に感熱フィルムを付着したことを特徴とする逆電圧
印加表示機能付有極性コンデンサ。1. A diode and a heating element connected in series between an anode terminal and a cathode terminal of a polar capacitor, a cathode of the diode being connected to an anode terminal of the polar capacitor, A first terminal is connected to an anode of the diode, a second terminal of the heating element is connected to a cathode terminal of the polar capacitor, and the polar capacitor, the diode, and the heating element are covered with an exterior resin. A polar capacitor with a reverse voltage application display function, wherein a heat-sensitive film is attached to the heating element on the surface of the exterior resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5327114A JP2842189B2 (en) | 1993-12-24 | 1993-12-24 | Polarized capacitor with reverse voltage application display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5327114A JP2842189B2 (en) | 1993-12-24 | 1993-12-24 | Polarized capacitor with reverse voltage application display function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07183168A JPH07183168A (en) | 1995-07-21 |
| JP2842189B2 true JP2842189B2 (en) | 1998-12-24 |
Family
ID=18195460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5327114A Expired - Lifetime JP2842189B2 (en) | 1993-12-24 | 1993-12-24 | Polarized capacitor with reverse voltage application display function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2842189B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01107122U (en) * | 1988-01-08 | 1989-07-19 | ||
| JPH0263529U (en) * | 1988-10-31 | 1990-05-11 | ||
| JP3057927U (en) * | 1998-09-22 | 1999-06-08 | 株式会社ウエダ | Multiple pile knitted fabric |
-
1993
- 1993-12-24 JP JP5327114A patent/JP2842189B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07183168A (en) | 1995-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980922 |