JPH02123719A - Capacitor with safety device - Google Patents
Capacitor with safety deviceInfo
- Publication number
- JPH02123719A JPH02123719A JP63278429A JP27842988A JPH02123719A JP H02123719 A JPH02123719 A JP H02123719A JP 63278429 A JP63278429 A JP 63278429A JP 27842988 A JP27842988 A JP 27842988A JP H02123719 A JPH02123719 A JP H02123719A
- Authority
- JP
- Japan
- Prior art keywords
- safety device
- case
- capacitor
- movable piece
- switch
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000004913 activation Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、保安装置を備えたコンデンサに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a capacitor with a safety device.
従来の技術
従来の保安装置を備えたコンデンサは、コンデンサ素子
またはその集合体をケースに収容して絶縁油などを含浸
・充填し、内部故障時の発生ガスによる内圧上昇に伴う
ケースの変形を利用して電流通路を切断する絶縁板とリ
ード板と金具よりなる保安装置を備えたもので、この種
の保安装置は万一コンデンサの故障時にケースの破裂、
噴油、出火などによる事故の拡大を防止するために大き
な効果があり、承近多（のコンデンサに実用されている
。Conventional technology A capacitor equipped with a conventional safety device houses the capacitor element or its assembly in a case, impregnates and fills it with insulating oil, etc., and takes advantage of the deformation of the case due to the rise in internal pressure due to gas generated in the event of an internal failure. This type of safety device is equipped with a safety device consisting of an insulating plate, a lead plate, and metal fittings to cut the current path.This type of safety device prevents the case from bursting or breaking in the event of a capacitor failure.
It is highly effective in preventing the spread of accidents caused by oil spills, fires, etc., and is used in the capacitors of Jokinta.
発明が解決しようとする問題点
しかし上記の保安装置はすべてコンデンサのケースに内
蔵されており、その作動を外部より目視することができ
ない。そのために内部故障を生じて保安装置が作動して
も気づかずに放置され、力率の低下などの障害を発生す
る欠点があった。Problems to be Solved by the Invention However, all of the above-mentioned safety devices are built into the capacitor case, and their operation cannot be visually observed from the outside. As a result, even if an internal failure occurs and the safety device is activated, it may go unnoticed and cause problems such as a drop in power factor.
問題点を解決するための手段
本発明は、上記の欠点を除去したもので、保安装置が作
動したことを信号としてケースの外部に取り出せるよう
にしたもので、この信号を利用してコンデンサを自動的
に電源より開放したり、警報やランプ表示により、容易
に保安装置の動作を知り得るようにした保安装置を備え
たコンデンサを提供しようとするものである。Means for Solving the Problems The present invention eliminates the above-mentioned drawbacks, and makes it possible to take out the activation of the safety device as a signal to the outside of the case.Using this signal, the capacitor is automatically activated. It is an object of the present invention to provide a capacitor equipped with a safety device in which the operation of the safety device can be easily known by disconnecting the power supply or displaying an alarm or a lamp.
すなわち、コンデンサ素子またはその集合体、および内
部故障時のケース内圧上昇によるケースの変形力を利用
して電流通路を切断する絶縁板とリード板と金具よりな
る保安装置をケースに収容し、上記ケースの内面に設け
られた取付金具にスプリングを介して可動子を備え、該
可動子の一端を保安装置と連結し、ケースの一部に設け
たベローが可動子の移動によりコンデンサの外部に設け
たスイッチを作動せしめるよう構成した保安装置を備え
たコンデンサである。That is, a capacitor element or an assembly thereof, and a safety device consisting of an insulating plate, a lead plate, and a metal fitting that cut the current path by using the deformation force of the case due to an increase in internal pressure in the case of an internal failure are housed in the case. A movable element is attached to a mounting bracket provided on the inner surface of the capacitor via a spring, one end of the movable element is connected to a safety device, and a bellows provided on a part of the case is attached to the outside of the capacitor by movement of the movable element. A capacitor with a safety device configured to activate a switch.
作用
上記保安装置を備えたコンデンサが、何らかの原因で内
部故障を生じてケース内圧が上昇すると、ケースが膨れ
て変形して保安装置を形成するリード板が切断して、保
安装置が分割され、保安装置と連結する可動子の移動に
より、ベローがコンデンサの外部に設けたスイッチを作
動せしめるものである。Function: If a capacitor equipped with the above-mentioned safety device experiences an internal failure for some reason and the internal pressure of the case increases, the case swells and deforms, and the lead plate that forms the safety device breaks, causing the safety device to be divided and the safety device to fail. The bellows actuate a switch provided outside the capacitor by movement of a movable element connected to the device.
実施例
本発明の保安装置を備えたコンデンサを第１図〜第５図
に示す実施例について説明する。Embodiment An embodiment of a capacitor equipped with the safety device of the present invention shown in FIGS. 1 to 5 will be described.
第１図は保安装置作動前の要部縦側面図、第２図は保安
装置作動前の要部横断面図、第３図は一実施例における
可動子引出し部の斜視図、第４図は保安装置作動後の要
部縦側断面図、第５図は保安装置作動後の要部横断面図
である。Fig. 1 is a longitudinal side view of the main part before the safety device is activated, Fig. 2 is a cross-sectional view of the main part before the safety device is activated, Fig. 3 is a perspective view of the mover drawer part in one embodiment, and Fig. 4 is a FIG. 5 is a longitudinal cross-sectional view of the main part after the safety device is activated, and FIG. 5 is a cross-sectional view of the main part after the safety device is activated.
１はコンデンサ素子またはその集合体くコンデンサ素子
を複数個集合したもの）、２は金属からなるケース、３
は保安装置取付金具、４はケース２の変形により電流通
路を切断する保安装置で、樹脂板などの絶縁板に取付け
る金具４１とリード板４２を取付けてなり、ケース内面
に取付けられた保安装置取付金具３に取付けられている
。６はケース内面に設けられた取付金具７にスプリング
５を介して取付けられた可動子であり、この一端は保安
装置４に連結されている。この連結部の一実施例は第３
図に示すように可動子６の一端をリング状として、保安
装置に設けた連結棒４３がこのリングを貫通し、その一
端が保安装置取付金具３に設けた貫通穴３１を貫通する
如く構成されている。この可動子６の頭部突出部６１に
対向する部分のケース壁には、伸縮可能のベロー２２が
設けられている。1 is a capacitor element or a collection of capacitor elements), 2 is a case made of metal, and 3 is a case made of metal.
4 is a safety device mounting bracket, 4 is a safety device that cuts the current path by deformation of the case 2, and is made up of a metal fitting 41 that is attached to an insulating plate such as a resin plate, and a lead plate 42, and is attached to the inner surface of the case. It is attached to metal fitting 3. A movable element 6 is attached via a spring 5 to a mounting bracket 7 provided on the inner surface of the case, and one end of this movable element is connected to the safety device 4. One embodiment of this connection is the third
As shown in the figure, one end of the movable element 6 is formed into a ring shape, and a connecting rod 43 provided in the safety device passes through this ring, and one end thereof is configured to pass through a through hole 31 provided in the safety device mounting bracket 3. ing. An extendable bellows 22 is provided on the case wall of the movable element 6 at a portion thereof facing the head protrusion 61 .
保安装置４のリード板４２の一端には、引出端子２１よ
りのリード板が、他の一端には素子または素子集合体ユ
ニット１よりのリード線が接続されている。第４図およ
び第５図はこのコンデンサが内部故障を発生して内圧上
昇し、ケース変形により保安装置が動作した状態を示す
縦断面図および横断面図である。A lead plate from the lead terminal 21 is connected to one end of the lead plate 42 of the safety device 4, and a lead wire from the element or element assembly unit 1 is connected to the other end. FIGS. 4 and 5 are a longitudinal sectional view and a transverse sectional view showing a state in which the capacitor has developed an internal failure, the internal pressure has increased, and the safety device has been activated due to the deformation of the case.
コンデンサが内部故障などにより分解ガスを発生し、ケ
ース内圧が上昇すると、ケース変形を生じて第４図およ
び第５図に示すように保安装置４のリード板４２はケー
スの変形力により破断する。When the capacitor generates decomposition gas due to an internal failure or the like and the internal pressure of the case increases, the case deforms and the lead plate 42 of the safety device 4 breaks due to the deforming force of the case, as shown in FIGS. 4 and 5.
これにより保安装置４は２分割されてその間が拡がるが
、このため保安装置に設けた連結棒４３は可動子６のリ
ング部より抜は出し、可動子６と保安装置４の連結は引
外されて、可動子６はスプリング５の復帰力により移動
し、可動子６の頭部突出部６１はケースに設けたベロー
２２を伸長させて、ケース外部のへローに近接して取付
けたスイッチ２３の動作レバーを押し上げて、スイッチ
を動作させることができる。スイッチとしては、−船釣
なマイクロスインチまたはりミツトスイッチが使用可能
であり、無接点式の近接スイッチでもよい。As a result, the safety device 4 is divided into two parts and the space between them is expanded, but for this reason, the connecting rod 43 provided on the safety device is pulled out from the ring part of the movable element 6, and the connection between the movable element 6 and the safety device 4 is pulled out. Then, the movable element 6 is moved by the return force of the spring 5, and the head protrusion 61 of the movable element 6 extends the bellows 22 provided on the case, and the switch 23, which is mounted close to the bellows outside the case, is moved. The switch can be operated by pushing up on the operating lever. As the switch, a micro-sinch or a Mitsubishi switch can be used, and a non-contact type proximity switch may also be used.
第６図は本コンデンサの接続の一実施例を示すもので、
コンデンサ１０は開閉器２０を介して電源に接続されて
おり、コンデンサケース外部に取付けられたスイッチ２
３は操作電源４０と接続した開閉器のトリップコイル２
５と表示ランプ３０と並列としたものと直列に接続され
る。コンデンサ１０が内部故障などにより保安装置が動
作した場合、スイッチ２３の接点は閉となり、開閉器２
０のトリップコイル２５に電流が流れて開閉器２０は開
路し、コンデンサは電源より自動的に開放されるととも
に、表示ランプ３０が点灯してコンデンサの保安装置が
動作したことを表示する。さらにベルまたはブザーを接
続しておけば、保安装置が動作したことを警報すること
もできる。Figure 6 shows an example of the connection of this capacitor.
The capacitor 10 is connected to a power supply via a switch 20, and a switch 2 installed outside the capacitor case.
3 is the trip coil 2 of the switch connected to the operating power source 40
5 and the indicator lamp 30 are connected in parallel. When the safety device is activated due to an internal failure of the capacitor 10, the contact of the switch 23 is closed and the switch 2
A current flows through the trip coil 25 of 0, the switch 20 is opened, and the capacitor is automatically disconnected from the power source, and the indicator lamp 30 lights up to indicate that the capacitor safety device has operated. Furthermore, if you connect a bell or buzzer, you can be alerted when a security device is activated.
第７図および第８図は他の実施例を示し、ケースに取付
けるベロー２２はケース内側に取付けられ、ベロー２２
内にスイッチ押棒２４を取付けている。保安装置の動作
により可動子６が移動してベロー２２を圧縮し、ベロー
２２内のスイッチ押棒２４が突出してスイッチ２３の動
作レバーを押し上げてスイッチ２３を動作させることも
できる。7 and 8 show another embodiment, in which the bellows 22 attached to the case is attached inside the case, and the bellows 22 is attached to the inside of the case.
A switch push rod 24 is attached inside. When the safety device operates, the movable member 6 moves to compress the bellows 22, and the switch push rod 24 inside the bellows 22 protrudes to push up the operating lever of the switch 23, so that the switch 23 can be operated.
発明の効果
本発明の保安装置を備えたコンデンサは、保安装置が動
作したことを外部に警報、表示などにより伝達させるこ
とができるので、保守上便利であり、従来のように保安
装置の動作を気づかないままで力率低下を生じたりする
ことなく、動作信号によりコンデンサを自動的に電源よ
り開放したり、ランプ表示したり、警報を発することが
できるので、極めて保守上便利である。またスイッチを
外部に取付けるのでケースにはベローを取付けるのみで
、特別な引出端子を設けるなどの必要もないため、取付
けが容易であり、コンデンサの信幀性を損なうおそれが
全くないなどの効果があり、工業的ならびに実用的価値
大である。Effects of the Invention The capacitor equipped with the safety device of the present invention is convenient for maintenance because it is possible to communicate to the outside that the safety device has operated through an alarm, display, etc. It is extremely convenient for maintenance because it is possible to automatically disconnect the capacitor from the power supply, display a lamp, or issue an alarm in response to an operation signal without causing an unnoticed power factor drop. In addition, since the switch is mounted externally, only a bellows is attached to the case, and there is no need to provide any special lead-out terminals, so installation is easy and there is no risk of compromising the reliability of the capacitor. It has great industrial and practical value.
図面は本発明の保安装置を備えたこの実施例で、第１図
は保安装置作動前の要部縦側面図、第２図は保安装置作
動前の要部横断面図、第３図は一実施例における可動子
引出し部の斜視図、第４図は保安装置作動後の要部縦側
断面図、第５図は保安装置作動後の要部横断面図、第６
図は本発明のコンデンサの接続図の一実施例、第７図は
他の実施例の要部縦断面図、第８図は第７図の作動後の
要部縦断面図である。
１：コンデンサ素子またはその集合体
２：ケース ３：保安装置取付金具
４：保安装置 ４１：金具 ４２：リード板４３：連結
棒 ５ニスプリング ６：可動子７：取付金具 ２３：
スイッチThe drawings show this embodiment equipped with the safety device of the present invention; FIG. 1 is a longitudinal side view of the main part before the safety device is activated, FIG. 2 is a cross-sectional view of the main part before the safety device is activated, and FIG. A perspective view of the mover drawer part in the embodiment, FIG. 4 is a longitudinal cross-sectional view of the main part after the safety device is activated, FIG. 5 is a cross-sectional view of the main part after the safety device is activated, and FIG.
The figure shows one embodiment of a connection diagram of a capacitor according to the present invention, FIG. 7 is a vertical sectional view of a main part of another embodiment, and FIG. 8 is a longitudinal sectional view of a main part after the operation of FIG. 7. 1: Capacitor element or assembly thereof 2: Case 3: Safety device mounting bracket 4: Safety device 41: Metal fitting 42: Lead plate 43: Connecting rod 5 Spring 6: Mover 7: Mounting bracket 23:
switch
Claims (1)
内部故障時のケース内圧上昇によるケースの変形力を利
用して電流通路を切断する絶縁板とリード板と金具より
なる保安装置を備えたコンデンサにおいて、上記ケース
の内面に設けられた取付金具にスプリングを介して可動
子を備え、該可動子の一端を保安装置と連結し、ケース
の一部に設けたベローが可動子の移動によりコンデンサ
の外部に設けたスイッチを作動せしめるよう構成したこ
とを特徴とする保安装置を備えたコンデンサ。A capacitor element or an assembly thereof is housed in a case,
In a capacitor equipped with a safety device consisting of an insulating plate, a lead plate, and a metal fitting that uses the deformation force of the case due to an increase in case internal pressure in the event of an internal failure, a spring is attached to the mounting metal fitting provided on the inner surface of the case. A movable element is provided through the capacitor, one end of the movable element is connected to a safety device, and a bellows provided in a part of the case is configured such that movement of the movable element activates a switch provided outside the capacitor. A capacitor equipped with a safety device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278429A JPH0831389B2 (en) | 1988-11-01 | 1988-11-01 | Capacitor with security device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278429A JPH0831389B2 (en) | 1988-11-01 | 1988-11-01 | Capacitor with security device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02123719A true JPH02123719A (en) | 1990-05-11 |
| JPH0831389B2 JPH0831389B2 (en) | 1996-03-27 |
Family
ID=17597224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63278429A Expired - Fee Related JPH0831389B2 (en) | 1988-11-01 | 1988-11-01 | Capacitor with security device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0831389B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022184019A (en) * | 2021-05-31 | 2022-12-13 | 富士電機株式会社 | Power conversion device and fault detection circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558806A (en) * | 1978-07-03 | 1980-01-22 | Kuri Kagaku Sochi Kk | Liquefaction or concentration of specified component present in gaseous mixture |
| JPS6179527A (en) * | 1984-09-27 | 1986-04-23 | Fujitsu Ltd | Line work system |
-
1988
- 1988-11-01 JP JP63278429A patent/JPH0831389B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS558806A (en) * | 1978-07-03 | 1980-01-22 | Kuri Kagaku Sochi Kk | Liquefaction or concentration of specified component present in gaseous mixture |
| JPS6179527A (en) * | 1984-09-27 | 1986-04-23 | Fujitsu Ltd | Line work system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022184019A (en) * | 2021-05-31 | 2022-12-13 | 富士電機株式会社 | Power conversion device and fault detection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0831389B2 (en) | 1996-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
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