JPS6225884Y2 - - Google Patents
Info
- Publication number
- JPS6225884Y2 JPS6225884Y2 JP4188582U JP4188582U JPS6225884Y2 JP S6225884 Y2 JPS6225884 Y2 JP S6225884Y2 JP 4188582 U JP4188582 U JP 4188582U JP 4188582 U JP4188582 U JP 4188582U JP S6225884 Y2 JPS6225884 Y2 JP S6225884Y2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- explosion
- lid
- shielding film
- sealed
- 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
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000011888 foil Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は防爆装置を有する密閉型コンデンサに
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealed capacitor with an explosion-proof device.
アルミ電解コンデンサ等のような密閉型コンデ
ンサは、ケース内部にペースト等が充填されてお
り、そのために使用中に、水素ガスの発生や空気
の膨張のために内圧が上昇し、爆発する事故が
往々にして発生する。 Sealed capacitors such as aluminum electrolytic capacitors have a case filled with paste, etc. During use, the internal pressure increases due to the generation of hydrogen gas and expansion of air, which often leads to explosions. occurs.
このような事故を防止するために、従来から
種々の防爆装置が採用されているが、一度この防
爆装置が作動すると、コンデンサ内部のリード線
が切断されて開放状態になつたり、あるいは蓋の
１部が開放されて密閉状態が破られる構造のため
にその後の使用が出来なくなる欠点があつた。 In order to prevent such accidents, various explosion-proof devices have been used in the past, but once these explosion-proof devices are activated, the lead wire inside the capacitor may be cut and the capacitor may become open, or one part of the lid may become open. The structure had the disadvantage that it could not be used afterward because the part could be opened and the sealed state broken.
本考案は、以上の欠点を防止し、防爆装置が働
いてもコンデンサとしての機能を失うことのない
密閉型コンデンサの提供を目的とするものであ
る。 The present invention aims to prevent the above-mentioned drawbacks and provide a sealed capacitor that does not lose its function as a capacitor even if an explosion-proof device is activated.
本考案は、上記の目的を達成するために、蓋に
貫通孔を設け、該貫通孔に、気体のみを通過しう
る遮蔽膜と該遮蔽膜を挟持している複数の孔を有
する金属箔とからなる防爆弁を設けることを特徴
とする密閉型コンデンサを提供するものである。 In order to achieve the above object, the present invention provides a through hole in the lid, and a shielding film through which only gas can pass, and a metal foil having a plurality of holes sandwiching the shielding film. The present invention provides a sealed capacitor characterized by being provided with an explosion-proof valve consisting of:
以下、本考案の実施例を図面に基づいて説明す
る。 Hereinafter, embodiments of the present invention will be described based on the drawings.
１は陽極箔と陰極箔とをセパレータを介して積
層し巻回した円筒状のコンデンサ素子であり、エ
チレングリコールや硼酸等からなるペーストが含
浸されている。２はコンデンサ素子を内蔵してい
るアルミ金属やエポキシ樹脂等の円筒状のケース
である。３はケース２の開口端を密閉する、ゴム
張り積層板やエポキシ樹脂等からなる蓋である。
４及び５は蓋３に貫設されている端子であり、コ
ンデンサ素子１から引き出されているリード線６
及び７が各々接続されている。８は蓋３に設けら
れている貫通孔である。９は貫通孔８の中途にこ
の貫通孔８を遮蔽するように設けられている防爆
弁であり、遮蔽膜１０とこの遮蔽膜１０をＵ字状
に挟持している複数の孔１１を有するアルミ等の
金属箔１２から構成されている。遮蔽膜１０は気
体を通し液体の通過を遮蔽する性質を有するもの
で、例えば厚さ150μ程度の、ポリエチレン樹脂
を主材料とするセルポア（積水化学工業株式会社
商品名）を用いる。 Reference numeral 1 denotes a cylindrical capacitor element in which an anode foil and a cathode foil are laminated and wound with a separator in between, and is impregnated with a paste made of ethylene glycol, boric acid, or the like. Reference numeral 2 denotes a cylindrical case made of aluminum metal, epoxy resin, etc., which contains a capacitor element. Reference numeral 3 denotes a lid made of a rubber-covered laminate, epoxy resin, or the like, which seals the open end of the case 2.
4 and 5 are terminals extending through the lid 3, and lead wires 6 drawn out from the capacitor element 1.
and 7 are connected to each other. 8 is a through hole provided in the lid 3. 9 is an explosion-proof valve provided in the middle of the through hole 8 so as to shield the through hole 8, and is made of aluminum having a shielding membrane 10 and a plurality of holes 11 sandwiching the shielding membrane 10 in a U-shape. It is composed of metal foil 12 such as. The shielding film 10 has the property of allowing gas to pass through and blocking the passage of liquid, and is made of, for example, Cellpore (trade name, Sekisui Chemical Co., Ltd.), which has a thickness of about 150 μm and is mainly made of polyethylene resin.
すなわち、上記のコンデンサ１１を回路に組み
込んで用いると、水素ガスの発生や内部空気の膨
張が生じるが、これ等は皆、防爆弁９を通してケ
ース２の外部え放出される。従つて、ケース２の
内圧が低下して爆発が未然に防止される。しかも
ペーストは外部への流出が遮蔽される。 That is, when the capacitor 11 is incorporated into a circuit and used, hydrogen gas is generated and internal air expands, but these are all discharged to the outside of the case 2 through the explosion-proof valve 9. Therefore, the internal pressure of the case 2 is reduced and an explosion is prevented. Moreover, the paste is prevented from leaking to the outside.
なお、遮蔽膜１０だけでは機械的強度が低くて
損傷し易いが、この遮蔽膜１０を金属箔１２によ
り挟持しているので機械的強度が向上し、耐久性
が増す。また、特に、蓋３を樹脂モールドにより
製造する場合に防爆弁９も一緒にモールドすると
き、遮蔽膜１０の変形等を防止できる。 Note that the shielding film 10 alone has low mechanical strength and is easily damaged, but since the shielding film 10 is sandwiched between the metal foils 12, the mechanical strength is improved and the durability is increased. Further, especially when the lid 3 is manufactured by resin molding and the explosion-proof valve 9 is also molded together, deformation of the shielding film 10 can be prevented.
以上の通り、本考案によれば、機械的強度の大
きい、ケース内の圧力上昇を未然に防止できる防
爆弁が設けられているので、コンデンサとしての
機能を損うことなく防爆が可能な密閉型コンデン
サが得られる。 As described above, the present invention is equipped with an explosion-proof valve that has high mechanical strength and can prevent pressure rise inside the case, so it is a sealed type that can be explosion-proof without impairing its function as a capacitor. A capacitor is obtained.
図は本考案の実施例の正面断面図を示す。
１……コンデンサ素子、２……ケース、３……
蓋、８……貫通孔、９……防爆弁、１０……遮蔽
膜、１１……孔、１２……金属箔。
The figure shows a front sectional view of an embodiment of the invention. 1... Capacitor element, 2... Case, 3...
Lid, 8...through hole, 9...explosion proof valve, 10...shielding membrane, 11...hole, 12...metal foil.
Claims (1)
してなる密閉型コンデンサにおいて、蓋に貫通孔
を設け、該貫通孔に気体のみを通過しうる遮蔽膜
と該遮蔽膜を挟持している複数の孔を有する金属
箔とからなる防爆弁を設けることを特徴とする密
閉型コンデンサ。 In a sealed capacitor in which a capacitor element is built into a case and hermetically sealed with a lid, a through hole is provided in the lid, and the through hole is provided with a shielding film through which only gas can pass and a plurality of holes sandwiching the shielding film. A sealed capacitor characterized by being provided with an explosion-proof valve made of metal foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4188582U JPS58144827U (en) | 1982-03-26 | 1982-03-26 | sealed capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4188582U JPS58144827U (en) | 1982-03-26 | 1982-03-26 | sealed capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58144827U JPS58144827U (en) | 1983-09-29 |
| JPS6225884Y2 true JPS6225884Y2 (en) | 1987-07-02 |
Family
ID=30053055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4188582U Granted JPS58144827U (en) | 1982-03-26 | 1982-03-26 | sealed capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58144827U (en) |
-
1982
- 1982-03-26 JP JP4188582U patent/JPS58144827U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144827U (en) | 1983-09-29 |
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