JP2002093669A - Explosion-proof capacitor case - Google Patents
Explosion-proof capacitor caseInfo
- Publication number
- JP2002093669A JP2002093669A JP2000278629A JP2000278629A JP2002093669A JP 2002093669 A JP2002093669 A JP 2002093669A JP 2000278629 A JP2000278629 A JP 2000278629A JP 2000278629 A JP2000278629 A JP 2000278629A JP 2002093669 A JP2002093669 A JP 2002093669A
- Authority
- JP
- Japan
- Prior art keywords
- explosion
- proof
- case
- capacitor
- groove
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防爆形コンデンサ
ケースに関する。より詳しく言えば、本発明は、防爆弁
（安全装置）付きの電解コンデンサにおいて防爆弁が作
動したときの開口部がコンデンサ底面全体に行き渡るよ
うに大きく開弁するのを防ぎ、コンデンサケース内容物
の飛散を極力防止し得るようにした防爆形コンデンサケ
ースに関する。The present invention relates to an explosion-proof capacitor case. More specifically, the present invention prevents the opening of an electrolytic capacitor with an explosion-proof valve (safety device) from opening so that the opening when the explosion-proof valve is activated spreads over the entire bottom surface of the capacitor, and prevents the contents of the capacitor case from being opened. The present invention relates to an explosion-proof capacitor case capable of preventing scattering as much as possible.
【０００２】[0002]
【従来の技術】防爆弁付きの電解コンデンサでは、安定
した防爆弁の作動とともに、万が一防爆弁が作動したと
きの内容物の噴出、飛散をできる限り防止することが必
要である。2. Description of the Related Art In an electrolytic capacitor provided with an explosion-proof valve, it is necessary to operate the explosion-proof valve stably and to prevent as much as possible the ejection and scattering of contents when the explosion-proof valve is operated.
【０００３】従来の防爆弁付きの電解コンデンサは、図
６に示すように、電解液を含浸したコンデンサ紙を介在
させて陽極箔、陰極箔を巻回してなるコンデンサ素子１
１を、底面に防爆溝１２が形成された外装ケース１３内
に収納し、素子１１の陽極リード１５、陰極リード１４
を封口体１６の孔を通して外部へ引き出した構造になっ
ている。防爆溝１２の形成された外装ケース１３の底面
が、防爆弁として機能する。外装ケース１３はアルミニ
ウム等で作製されていて、その底面に形成された溝１２
は、図７に示すようにＹ字状に形成されたり、あるいは
図８に示すように十字状に形成されている。いずれの場
合も、この溝１２の形状はケース底面の中心位置に交差
点を有し、この交差点から外周方向の先端１２ａまで直
線状に伸びている。As shown in FIG. 6, a conventional electrolytic capacitor with an explosion-proof valve has a capacitor element 1 formed by winding an anode foil and a cathode foil with a capacitor paper impregnated with an electrolyte interposed therebetween.
1 is housed in an outer case 13 having an explosion-proof groove 12 formed on the bottom surface, and an anode lead 15 and a cathode lead 14
Is drawn out to the outside through the hole of the sealing body 16. The bottom surface of the outer case 13 in which the explosion-proof groove 12 is formed functions as an explosion-proof valve. The outer case 13 is made of aluminum or the like, and has a groove 12 formed on the bottom surface thereof.
Are formed in a Y shape as shown in FIG. 7, or in a cross shape as shown in FIG. In any case, the shape of the groove 12 has an intersection at the center position of the bottom surface of the case, and linearly extends from the intersection to the distal end 12a in the outer peripheral direction.
【０００４】上記のように構成された防爆弁付きの電解
コンデンサでは、長年使用による特性劣化や、陽陰極の
誤接続、過電圧印加及び交流印加等に起因してコンデン
サ素子１１が発熱すると、素子１１内の電解液や水分等
の蒸発及び水素ガスの発生により外装ケース１３内部の
圧力が外気圧より著しく上昇し、その結果防爆溝１２の
ところで外装ケース１３の底面が破れることにより防爆
弁が開いてケース内部が圧抜きされる。In the electrolytic capacitor with the explosion-proof valve configured as described above, if the capacitor element 11 generates heat due to deterioration of characteristics due to long-term use, erroneous connection of the positive and negative electrodes, application of overvoltage and application of AC, etc. The pressure inside the outer case 13 rises significantly from the outside air pressure due to the evaporation of the electrolyte solution and moisture therein and the generation of hydrogen gas. As a result, the bottom surface of the outer case 13 is broken at the explosion-proof groove 12 and the explosion-proof valve is opened. The inside of the case is released.
【０００５】[0005]
【発明が解決しようとする課題】上記従来構成の防爆形
コンデンサケースの防爆弁によるに圧抜きは、次のよう
にしてなされる。図９に示したように、防爆溝１２は外
装ケース１３底面の外周方向の中心線上に位置するの
で、防爆弁作動時ケース１３内部の圧力成分はケース１
３底面の防爆溝１２の左右部Ｃ、Ｃ´をほぼ均等に押圧
して開弁する。この場合、圧力抜けの方向（図中矢印Ｇ
で示す）は外装ケース１３の中心線Ｏ‐Ｏ´と同一とな
り、開口部は防爆弁作動時のガス通過圧力により大きく
開きやすく、防爆溝１２の先端１２ａ（図７、８）を越
えて開口し（すなわち開口部が防爆溝１２の長さを越え
て更に外周方向外側まで達し）、その結果ケース１３内
の内容固形成分等が外部に噴出あるいは飛散しやすくな
る。このように内容物が外部に噴出したり飛散すると、
コンデンサ周辺を汚染したり、他の部品の損傷を招くと
いう問題が発生することになる。The depressurization of the explosion-proof valve of the conventional explosion-proof capacitor case is performed as follows. As shown in FIG. 9, since the explosion-proof groove 12 is located on the center line in the outer peripheral direction of the bottom surface of the outer case 13, the pressure component inside the case 13 when the explosion-proof valve operates is the case 1.
The left and right portions C and C 'of the explosion-proof groove 12 on the bottom face 3 are almost uniformly pressed to open the valve. In this case, the direction of pressure release (arrow G in the figure)
) Is the same as the center line OO ′ of the outer case 13, and the opening is easily opened greatly due to the gas passage pressure when the explosion-proof valve is operated, and the opening is opened beyond the tip 12 a of the explosion-proof groove 12 (FIGS. 7 and 8). (I.e., the opening extends beyond the length of the explosion-proof groove 12 and further to the outside in the outer peripheral direction). As a result, the solid components and the like in the case 13 are easily ejected or scattered to the outside. When the contents erupt or scatter outside,
This causes a problem that the area around the capacitor is contaminated and other parts are damaged.
【０００６】そこで、本発明は、防爆弁が作動したとき
の開口の余分な拡大を防ぐことにより、内容物の外部へ
の噴出や飛散を防止することが可能な新しい防爆形コン
デンサケースの提供を目的とするものである。Accordingly, the present invention provides a new explosion-proof capacitor case capable of preventing the contents from spouting or scattering by preventing the opening from being excessively expanded when the explosion-proof valve is operated. It is the purpose.
【０００７】[0007]
【課題を解決するための手段】本発明の防爆形コンデン
サケースは、コンデンサケース底面の中心から外周方向
に直線状に伸びた防爆溝の先端に、この防爆溝と交差す
る方向に形成したストッパーを有することを特徴とす
る。The explosion-proof capacitor case of the present invention has a stopper formed at the tip of an explosion-proof groove extending linearly from the center of the bottom of the capacitor case in the outer peripheral direction in a direction intersecting the explosion-proof groove. It is characterized by having.
【０００８】このストッパーは、防爆溝と直行する方向
に線状に形成するのが好ましく、より好ましくは溝状に
形成される。また、ストッパーの長さは防爆溝の幅より
長く、コンデンサケースの半径×（３）1/2未満の長さ
でよい。The stopper is preferably formed in a linear shape in a direction perpendicular to the explosion-proof groove, more preferably in a groove shape. The length of the stopper may be longer than the width of the explosion-proof groove, and may be less than the radius of the capacitor case × (3) 1/2 .
【０００９】[0009]
【発明の実施の形態】本発明の防爆形コンデンサケース
は、図１（平面図）と図２（斜視図）に示したように、
通常の防爆形コンデンサケースと同様の材料であるアル
ミニウム等の材料から製作された円筒状のケース１の底
面２に、やはり通常の防爆形コンデンサケースにおける
防爆溝と同様の防爆溝４により構成された防爆弁３を有
し、この防爆溝４はケース底面２の中心から外周方向に
直線状に伸びている（図２においては、防爆溝もストッ
パーも簡略化のため線状に表現されている）。防爆溝の
形状（例えば図１に示したように十字状でもよく、ある
いは図３に示したようにＹ字状でもよい）、長さ、幅、
深さ等は、製作しようとするコンデンサの仕様に応じ
て、これまでと同様に決定することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An explosion-proof capacitor case according to the present invention has a structure as shown in FIGS. 1 (plan view) and 2 (perspective view).
An explosion-proof groove 4 similar to the explosion-proof groove of the ordinary explosion-proof capacitor case is formed on the bottom surface 2 of the cylindrical case 1 made of a material such as aluminum which is the same material as the ordinary explosion-proof capacitor case. An explosion-proof valve 3 is provided, and the explosion-proof groove 4 extends linearly from the center of the case bottom surface 2 in the outer peripheral direction (in FIG. 2, both the explosion-proof groove and the stopper are linearly represented for simplicity). . The shape of the explosion-proof groove (for example, a cross shape as shown in FIG. 1 or a Y-shape as shown in FIG. 3), a length, a width,
The depth and the like can be determined in the same manner as before according to the specifications of the capacitor to be manufactured.
【００１０】本発明の防爆形コンデンサケース１におい
ては、防爆溝４の外周方向の先端部４ａ（図１）に、防
爆溝４と交差する方向に形成したストッパー５が存在す
る。このストッパー５は、コンデンサ内圧の異常上昇時
に防爆溝５より先に開裂あるいは開口しない限りは、任
意の構造で形成することができる。例えば、防爆溝４と
同様の溝状（凹状）に形成してもよく、あるいは凸状に
形成してもよい。ストッパー５が防爆溝４と交差する方
向も任意であるが、好ましいのは防爆溝４と直行する方
向である。ストッパー５が防爆溝４と直行する場合、ス
トッパー５の長さは、防爆溝４の幅より長くなければな
らず、且つ、防爆溝４が十字状の場合ケース１の半径Ｒ
の（２）1/2倍（ストッパーの各先端５ａがケース１の
底面２の外周に達して四つのストッパー５により正方形
が形成されるときの長さ）未満、Ｙ字状である場合ケー
ス１の半径Ｒの（３）1/2倍（同様に、ストッパーの各
先端５ａがケース１の底面２の外周に達して三つのスト
ッパー５により正三角形が形成されるときの長さ）未満
となる。従って、一般に、本発明においてストッパーの
長さはコンデンサケースの半径Ｒの（３）1/2倍未満と
なる。In the explosion-proof capacitor case 1 of the present invention, a stopper 5 formed in a direction intersecting with the explosion-proof groove 4 is present at a tip 4a (FIG. 1) of the explosion-proof groove 4 in the outer peripheral direction. The stopper 5 can be formed in any structure as long as it does not break or open before the explosion-proof groove 5 when the internal pressure of the capacitor abnormally rises. For example, it may be formed in the same groove shape (concave shape) as the explosion-proof groove 4 or may be formed in a convex shape. The direction in which the stopper 5 intersects the explosion-proof groove 4 is also arbitrary, but is preferably a direction perpendicular to the explosion-proof groove 4. When the stopper 5 is perpendicular to the explosion-proof groove 4, the length of the stopper 5 must be longer than the width of the explosion-proof groove 4, and when the explosion-proof groove 4 has a cross shape, the radius R of the case 1
(2) less than 1/2 times (the length when each tip 5a of the stopper reaches the outer periphery of the bottom surface 2 of the case 1 to form a square by the four stoppers 5), and the case 1 is Y-shaped. (3) 1/2 (similarly, the length when each tip 5a of the stopper reaches the outer periphery of the bottom surface 2 of the case 1 and the three stoppers 5 form an equilateral triangle). . Therefore, in general, in the present invention, the length of the stopper is less than (3) 1/2 times the radius R of the capacitor case.
【００１１】好ましくは、ストッパー５は、防爆溝４の
形成と同じ工程において溝状に形成される。このとき形
成する溝状ストッパーは、上述のとおりコンデンサ内圧
の異常上昇時に防爆溝５より先に開裂あるいは開口しな
い限りは、任意の深さ、幅、長さで形成することができ
る。Preferably, the stopper 5 is formed in a groove shape in the same step as the formation of the explosion-proof groove 4. The groove-shaped stopper formed at this time can be formed at an arbitrary depth, width, and length as long as it does not tear or open before the explosion-proof groove 5 when the internal pressure of the capacitor abnormally rises as described above.
【００１２】コンデンサ内圧が上昇して防爆弁が作動す
ると、ケース底面は防爆溝に沿って開口し、開口部から
内圧を逃がして安全を確保する。図４に示したように、
本発明の防爆形コンデンサケース１を使用した製品コン
デンサ１０において防爆弁３が作動した場合、底面中心
部（防爆溝４（図１、２）の交差点）から防爆溝４に沿
い外周方向に向かって開口部６が広がるが、この開口部
は最も大きく広がったとしてもストッパー５に達したと
ころで停止する。そのため、開口部６はそれほど大きく
ならず、それに伴い内容物の噴出あるいは飛散が効果的
に抑制される。それに対し、図５に示したようにストッ
パーのない通常のケース１´を採用した製品コンデンサ
１０´では、開口部６は防爆溝の範囲を越えて広がり、
時によっては底面２の外周部又はその近傍まで達するこ
とがある。このように開口部６が広がると、内容物はケ
ース外部に噴出あるいは飛散して、コンデンサ周辺を汚
染するばかりか、他の部品の損傷の原因にもなる。When the internal pressure of the condenser rises and the explosion-proof valve operates, the bottom of the case is opened along the explosion-proof groove to release the internal pressure from the opening to ensure safety. As shown in FIG.
When the explosion-proof valve 3 is operated in the product capacitor 10 using the explosion-proof capacitor case 1 of the present invention, the explosion-proof valve 3 is operated from the center of the bottom surface (the intersection of the explosion-proof groove 4 (FIGS. 1 and 2)) toward the outer periphery along the explosion-proof groove 4. Although the opening 6 is widened, this opening stops even when it reaches the stopper 5 even if it has widened the largest. Therefore, the opening 6 is not so large, and the ejection or scattering of the contents is effectively suppressed. On the other hand, in the product capacitor 10 'employing the normal case 1' without a stopper as shown in FIG. 5, the opening 6 extends beyond the explosion-proof groove,
Depending on the case, it may reach the outer peripheral portion of the bottom surface 2 or its vicinity. When the opening 6 is widened in this way, the contents squirt or scatter to the outside of the case, thereby contaminating the area around the capacitor and causing damage to other components.
【００１３】このように、従来の電解コンデンサケース
の防爆弁における防爆溝は外周方向の先端部に至るまで
直線状に形成されているのみであるため、防爆弁作動時
にできる開口はアルミニウムケース底面の変形（内圧の
上昇による膨れ）に従うものとなって、すなわちこの防
爆弁には開口の拡大を阻止する機能がなかった。それに
対し、本発明の防爆形コンデンサケースにおいては、防
爆弁作動時に開口部のガス通過圧力により開口部が開き
過ぎるのを防ぐことができ、内容固形物がケース外部に
飛散するのを極力少なくすることができる。As described above, since the explosion-proof groove in the explosion-proof valve of the conventional electrolytic capacitor case is formed only linearly up to the outer peripheral end, the opening formed when the explosion-proof valve is activated is formed at the bottom of the aluminum case. The explosion-proof valve did not have a function to prevent the opening from expanding, which was due to deformation (bulging due to an increase in internal pressure). On the other hand, in the explosion-proof capacitor case of the present invention, it is possible to prevent the opening from being excessively opened due to the gas passage pressure of the opening when the explosion-proof valve is operated, and to minimize the scattering of the solid content outside the case. be able to.
【００１４】本発明のコンデンサケースにおいて防爆弁
作動時の開口部の不要な拡大が抑制されるのは、開口部
がストッパーに達したところでその拡大の伝播方向が上
にそらされて開口弁を押し広げようとする力が緩和され
るためと考えられる。In the capacitor case of the present invention, the unnecessary expansion of the opening during the operation of the explosion-proof valve is suppressed because when the opening reaches the stopper, the propagation direction of the expansion is diverted upward and the opening valve is pushed. It is considered that the force for spreading is reduced.
【００１５】[0015]
【実施例】次に実施例により本発明を更に説明するが、
本発明はこれらの実施例にいささかも限定されるもので
はない。The present invention will be further described with reference to the following examples.
The invention is not in any way restricted to these examples.
【００１６】（実施例１）防爆弁の防爆溝が図１０に示
したような十字状に形成され、防爆溝の先端部にストッ
パーを形成した防爆形コンデンサケースを使って、４０
０ＷＶ３３０μＦ（φ３０×４０Ｌ）のコンデンサ仕様
のアルミニウム電解コンデンサを１０個試作した。使用
したコンデンサケースの防爆溝の寸法は、図１０を参照
して、長さＬ1が１６ｍｍ、幅Ｗ1が０．３ｍｍ、深さが
０．３〜０．４ｍｍであり、ストッパーの寸法は、やは
り図１０を参照して、長さＬ2が３ｍｍ、幅Ｗ2が０．３
ｍｍ、深さが０．３〜０．４ｍｍであった。Example 1 An explosion-proof groove of an explosion-proof valve was formed in a cross shape as shown in FIG. 10, and an explosion-proof capacitor case having a stopper formed at the tip of the explosion-proof groove was used.
Ten prototype aluminum electrolytic capacitors having a capacitor specification of 0 WV330 μF (φ30 × 40 L) were manufactured. The dimensions of proof爆溝the capacitor case used, referring to FIG. 10, the length L 1 is 16 mm, the width W 1 is 0.3 mm, depth 0.3 to 0.4 mm, the dimension of the stopper Referring again to FIG. 10, length L 2 is 3 mm and width W 2 is 0.3.
mm and a depth of 0.3 to 0.4 mm.
【００１７】（実施例２）防爆弁の防爆溝が十字状に形
成され、防爆溝の先端部にストッパーを形成した防爆形
コンデンサケース（ストッパーの長さＬ2を７ｍｍとし
た以外は、実施例１のコンデンサケースと同じもの）を
使って、実施例１で試作したのと同じコンデンサ仕様の
アルミニウム電解コンデンサを同じく１０個試作した。[0017] (Example 2) Anti爆溝the explosion-proof valve are formed in a cross shape, except for the explosion-proof type capacitor case (stopper forming a stopper at the distal end portion of the explosion-爆溝the length L 2 and 7mm is Example Using the same capacitor case as in Example 1), ten aluminum electrolytic capacitors having the same capacitor specifications as those prototyped in Example 1 were also prototyped.
【００１８】（実施例３）防爆弁の防爆溝が図３に示し
たようなＹ字状に形成され、防爆溝の先端部にストッパ
ーを形成した防爆形コンデンサケースを使って、実施例
１で試作したのと同じコンデンサ仕様のアルミニウム電
解コンデンサを同じく１０個試作した。ここで使用した
コンデンサケースにおける防爆溝及びストッパーの各寸
法は、防爆溝長さ（ここではケース底面の中心からスト
ッパーの幅分を含めた防爆溝先端までの距離）が１２ｍ
ｍであったことを除き、実施例１の場合と同様であっ
た。(Embodiment 3) The explosion-proof groove of the explosion-proof valve is formed in a Y-shape as shown in FIG. 3, and an explosion-proof capacitor case in which a stopper is formed at the end of the explosion-proof groove is used in the first embodiment. Ten aluminum electrolytic capacitors having the same capacitor specifications as the prototypes were also prototyped. The dimensions of the explosion-proof groove and the stopper in the capacitor case used here are 12 m for the length of the explosion-proof groove (here, the distance from the center of the bottom of the case to the tip of the explosion-proof groove including the width of the stopper).
m was the same as in Example 1 except that m.
【００１９】（比較例１）防爆弁の防爆溝が図８に示し
たような十字状に形成されただけで、防爆溝の先端部に
ストッパーのない防爆形コンデンサケース（防爆溝の長
さ、幅、深さは実施例１のものと同じ）を使って、実施
例１で試作したのと同じコンデンサ仕様のアルミニウム
電解コンデンサをやはり１０個試作した。(Comparative Example 1) An explosion-proof valve case (the length of the explosion-proof groove, the length of the explosion-proof groove, in which the explosion-proof groove of the explosion-proof valve was merely formed in a cross shape as shown in FIG. Using the same width and depth as those of the first embodiment), ten aluminum electrolytic capacitors having the same capacitor specifications as the prototypes of the first embodiment were also manufactured.
【００２０】（比較例２）防爆弁の防爆溝が図７に示し
たようなＹ字状に形成されただけで、防爆溝の先端部に
ストッパーのない防爆形コンデンサケース（防爆溝の長
さ、幅、深さは実施例３のものと同じ）を使って、実施
例１で試作したのと同じコンデンサ仕様のアルミニウム
電解コンデンサを同じく１０個試作した。Comparative Example 2 An explosion-proof capacitor case (the length of an explosion-proof groove) in which an explosion-proof groove of an explosion-proof valve is formed in a Y-shape as shown in FIG. , Width and depth are the same as those of the third embodiment), and ten aluminum electrolytic capacitors having the same capacitor specifications as the prototypes of the first embodiment were manufactured.
【００２１】試作した上記各例のコンデンサを防爆弁
（安全装置）作動性試験（定格電圧の１．５倍の電圧印
加）にかけた。試験後の各コンデンサの状態を表１及び
表２に示す。The prototyped capacitors of each of the above examples were subjected to an explosion-proof valve (safety device) operability test (a voltage 1.5 times the rated voltage was applied). Tables 1 and 2 show the state of each capacitor after the test.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 [Table 2]
【００２４】これらの表から明らかなように、防爆溝の
先端部分にストッパーを入れなかった比較例１、２のア
ルミニウム電解コンデンサでは、防爆弁が大きく開口し
内容物の噴出や飛散が見られた。それに対し、防爆溝の
先端部分にストッパーを入れた実施例１〜３は、防爆弁
が開いているものの内容物の飛散は認められなかった。
これは、防爆溝の先端部分にストッパーを入れたことに
より防爆弁の開口部がコンデンサ底面全体に行き渡るよ
うな大きな開弁を防いだためと考えられる。As is clear from these tables, in the aluminum electrolytic capacitors of Comparative Examples 1 and 2 in which a stopper was not provided at the end of the explosion-proof groove, the explosion-proof valve was greatly opened, and squirting and scattering of the contents were observed. . On the other hand, in Examples 1 to 3 in which a stopper was provided at the tip of the explosion-proof groove, although the explosion-proof valve was open, the contents were not scattered.
This is presumably because the stopper at the end of the explosion-proof groove prevented a large valve opening such that the opening of the explosion-proof valve spread over the entire bottom surface of the capacitor.
【００２５】[0025]
【発明の効果】以上述べたように、本発明によれば、ケ
ース内部圧力上昇による防爆弁開口時における開口部の
広がりが防爆溝先端のストッパーにより阻止され、それ
以上の開口を抑制することができ、内容物の噴出や飛散
を防止することができる。As described above, according to the present invention, the expansion of the opening when the explosion-proof valve is opened due to an increase in the internal pressure of the case is prevented by the stopper at the tip of the explosion-proof groove, and further opening can be suppressed. It is possible to prevent ejection and scattering of the contents.
【図１】本発明の防爆形コンデンサケースの一態様の平
面図である。FIG. 1 is a plan view of one embodiment of an explosion-proof capacitor case of the present invention.
【図２】図１のコンデンサケースの斜視図である。FIG. 2 is a perspective view of the capacitor case of FIG.
【図３】本発明のもう一つの態様の平面図である。FIG. 3 is a plan view of another embodiment of the present invention.
【図４】本発明の防爆形コンデンサケースの防爆弁が作
動した状態を説明する斜視図である。FIG. 4 is a perspective view illustrating a state in which an explosion-proof valve of the explosion-proof capacitor case of the present invention is operated.
【図５】従来の防爆形コンデンサケースの防爆弁が作動
した状態を説明する斜視図である。FIG. 5 is a perspective view illustrating a state in which an explosion-proof valve of a conventional explosion-proof capacitor case is operated.
【図６】電解コンデンサの構造を説明する図である。FIG. 6 is a diagram illustrating the structure of an electrolytic capacitor.
【図７】従来の防爆形コンデンサケースのＹ字状防爆溝
を示す図である。FIG. 7 is a view showing a Y-shaped explosion-proof groove of a conventional explosion-proof capacitor case.
【図８】従来の防爆形コンデンサケースの十字状防爆溝
を示す図である。FIG. 8 is a view showing a cross-shaped explosion-proof groove of a conventional explosion-proof capacitor case.
【図９】防爆弁作動時の状態を説明する図である。FIG. 9 is a diagram illustrating a state when an explosion-proof valve is operated.
【図１０】実施例１の防爆形コンデンサケースの防爆溝
を説明する図である。FIG. 10 is a diagram illustrating an explosion-proof groove of the explosion-proof capacitor case of the first embodiment.
１…ケース ２…ケース底面 ３…防爆弁 ４…防爆溝 ４ａ…防爆溝先端部 ５…ストッパー ６…開口部 １０…製品コンデンサ DESCRIPTION OF SYMBOLS 1 ... Case 2 ... Case bottom surface 3 ... Explosion-proof valve 4 ... Explosion-proof groove 4a ... Explosion-proof groove tip part 5 ... Stopper 6 ... Opening 10 ... Product condenser
Claims (4)
向に直線状に伸びた防爆溝の先端に、この防爆溝と交差
する方向に形成したストッパーを有することを特徴とす
る防爆形コンデンサケース。1. An explosion-proof capacitor case comprising: a stopper formed in a direction intersecting with the explosion-proof groove at a tip of the explosion-proof groove extending linearly in the outer peripheral direction from the center of the bottom surface of the capacitor case.
に線状に形成されている、請求項１記載の防爆形コンデ
ンサケース。2. The explosion-proof capacitor case according to claim 1, wherein the stopper is linearly formed in a direction perpendicular to the explosion-proof groove.
る、請求項２記載の防爆形コンデンサケース。3. The explosion-proof capacitor case according to claim 2, wherein the stopper is formed in a groove shape.
長く、コンデンサケースの半径×（３）1/2未満であ
る、請求項１から３までのいずれか一つに記載の防爆形
コンデンサケース。4. The explosion-proof capacitor according to claim 1, wherein the length of the stopper is longer than the width of the explosion-proof groove and less than the radius of the capacitor case × (3) 1/2. Case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000278629A JP2002093669A (en) | 2000-09-13 | 2000-09-13 | Explosion-proof capacitor case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000278629A JP2002093669A (en) | 2000-09-13 | 2000-09-13 | Explosion-proof capacitor case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002093669A true JP2002093669A (en) | 2002-03-29 |
Family
ID=18763762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000278629A Pending JP2002093669A (en) | 2000-09-13 | 2000-09-13 | Explosion-proof capacitor case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002093669A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010176867A (en) * | 2009-01-27 | 2010-08-12 | Toyota Motor Corp | Safety valve and its manufacturing method, sealed battery and its manufacturing method, vehicle, battery-mounted equipment |
| WO2010100731A1 (en) * | 2009-03-04 | 2010-09-10 | トヨタ自動車株式会社 | Sealed battery and method of producing sealed battery |
| JP2014182949A (en) * | 2013-03-19 | 2014-09-29 | Lithium Energy Japan:Kk | Power storage element |
| JP2015069716A (en) * | 2013-09-26 | 2015-04-13 | 株式会社協豊製作所 | Safety valve of sealed battery |
| CN107275094A (en) * | 2017-07-18 | 2017-10-20 | 丰宾电子（深圳）有限公司 | A kind of capacitor case and the capacitor with it |
| CN107369796A (en) * | 2017-08-29 | 2017-11-21 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933342U (en) * | 1972-06-26 | 1974-03-23 | ||
| JPS55111341U (en) * | 1979-01-26 | 1980-08-05 | ||
| JPS55164838U (en) * | 1979-05-11 | 1980-11-27 |
-
2000
- 2000-09-13 JP JP2000278629A patent/JP2002093669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4933342U (en) * | 1972-06-26 | 1974-03-23 | ||
| JPS55111341U (en) * | 1979-01-26 | 1980-08-05 | ||
| JPS55164838U (en) * | 1979-05-11 | 1980-11-27 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010176867A (en) * | 2009-01-27 | 2010-08-12 | Toyota Motor Corp | Safety valve and its manufacturing method, sealed battery and its manufacturing method, vehicle, battery-mounted equipment |
| WO2010100731A1 (en) * | 2009-03-04 | 2010-09-10 | トヨタ自動車株式会社 | Sealed battery and method of producing sealed battery |
| JP4831265B2 (en) * | 2009-03-04 | 2011-12-07 | トヨタ自動車株式会社 | Sealed battery and method for manufacturing sealed battery |
| CN102341936A (en) * | 2009-03-04 | 2012-02-01 | 丰田自动车株式会社 | Sealed Battery And Method Of Producing Sealed Battery |
| CN102341936B (en) * | 2009-03-04 | 2013-06-12 | 丰田自动车株式会社 | Sealed Battery And Method Of Producing Sealed Battery |
| JP2014182949A (en) * | 2013-03-19 | 2014-09-29 | Lithium Energy Japan:Kk | Power storage element |
| JP2015069716A (en) * | 2013-09-26 | 2015-04-13 | 株式会社協豊製作所 | Safety valve of sealed battery |
| CN107275094A (en) * | 2017-07-18 | 2017-10-20 | 丰宾电子（深圳）有限公司 | A kind of capacitor case and the capacitor with it |
| CN107369796A (en) * | 2017-08-29 | 2017-11-21 | 力信（江苏）能源科技有限责任公司 | A kind of lithium ion battery anti-exploding valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6231811B2 (en) | ||
| JPH03225811A (en) | Electric double layer capacitor | |
| JP2002093669A (en) | Explosion-proof capacitor case | |
| JP3987862B2 (en) | Power storage device | |
| JP6547000B2 (en) | Pressure valve and electrolytic capacitor | |
| JP2022509421A (en) | Capacitor | |
| JP2000030981A (en) | Aluminum electrolytic capacitor | |
| JP2006196394A (en) | Sealed type battery and method for manufacturing sealed type battery | |
| JPS5951090A (en) | Nozzle with square nose section | |
| JPH0142337Y2 (en) | ||
| JP6191015B2 (en) | Electrolytic capacitor | |
| JP2018190791A (en) | Pressure valve and electrolytic capacitor | |
| JPH0427165Y2 (en) | ||
| JP6244152B2 (en) | Sealed battery safety valve | |
| JPH0555537U (en) | Explosion-proof device for electrolytic capacitors | |
| JP3005989B2 (en) | Aluminum electrolytic capacitor | |
| JP6227742B2 (en) | Capacitor | |
| JP2825921B2 (en) | Manganese dry cell | |
| KR102345403B1 (en) | Pressurizing Mask and Method for Joining Top Cap Assembly and Electrode Tab By Using Pressurizing Mask | |
| JP2003157859A (en) | Dry battery | |
| JP2528339Y2 (en) | Electrolytic capacitor | |
| JPH0325399Y2 (en) | ||
| JPS5821478Y2 (en) | alkaline battery | |
| JP2559923Y2 (en) | Electrolytic capacitor | |
| JPS6065447A (en) | Cylindrical alkaline battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070911 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100316 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20100831 |