JPH0246041Y2 - - Google Patents
Info
- Publication number
- JPH0246041Y2 JPH0246041Y2 JP14848885U JP14848885U JPH0246041Y2 JP H0246041 Y2 JPH0246041 Y2 JP H0246041Y2 JP 14848885 U JP14848885 U JP 14848885U JP 14848885 U JP14848885 U JP 14848885U JP H0246041 Y2 JPH0246041 Y2 JP H0246041Y2
- Authority
- JP
- Japan
- Prior art keywords
- explosion
- valve
- mounting hole
- sealing plate
- proof valve
- 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
- 238000007789 sealing Methods 0.000 claims description 28
- 239000011324 bead Substances 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、主としてアルミ電解コナデンサーに
使用される防爆弁に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an explosion-proof valve mainly used in aluminum electrolytic conadensers.
（従来の技術）
一般に、アルミ電解コンデンサーは、通常内部
に主としてH2ガス（１〜２Kg／cm2の圧力）が発
生するが、この場合過電流が発生すると異常に内
部圧が上昇し、この状態でプラス、マイナスの接
続を誤ると爆発を生じ、アルミ電解コンデンサー
自体の損壊や火災を生じる。このため、封口板
（上蓋）に防爆弁を設け、内部圧が８〜10Kg／cm2
になると事前に防爆弁の薄肉部を破裂させて内部
圧を逃がし、アルミ電解コンデンサーの破損を防
止している。(Prior art) In general, aluminum electrolytic capacitors normally generate mainly H 2 gas (pressure of 1 to 2 kg/cm 2 ) inside, but in this case, when an overcurrent occurs, the internal pressure abnormally increases, and this If the positive and negative connections are incorrectly connected, an explosion may occur, resulting in damage to the aluminum electrolytic capacitor itself or a fire. For this reason, an explosion-proof valve is installed on the sealing plate (upper lid) to prevent the internal pressure from 8 to 10 kg/cm 2.
When this occurs, the thin-walled part of the explosion-proof valve is ruptured in advance to release internal pressure and prevent damage to the aluminum electrolytic capacitor.
ところで、上記防爆弁に要求される機能として
は、第１に組付け後に防爆弁自体が低圧下（８
Kg／cm2以下）の状態で簡単に抜けないこと、第２
に内部ガスのシール性を有することである。 By the way, the functions required of the above-mentioned explosion-proof valve are as follows: First, after assembly, the explosion-proof valve itself must be able to operate under low pressure (88
Kg/cm 2 or less), the second
It has an internal gas sealing property.
そこで、従来の防爆弁を第４図乃至第６図に基
づいて説明するに、第４図において、１００はア
ルミ電解コンデンサーのアルミニウムケースで、
このアルミニウムケース１００の開口端には、フ
エノール樹脂からなる封口板１０１が角リング又
はＯリング等のシール部材１０２を介して装着さ
れている。また、アルミニウムケース１００に収
納された素子１０３は封口板１０１に取付けられ
た接続部１０４，１０４を介してリード線１０
５，１０５に接続されている。素子１０３は、ア
ルミニウム層と紙層とを積層したものであつて、
前記紙層にはエチレングリコール、その他の７つ
の薬品の電解液が含浸されている。 Therefore, the conventional explosion-proof valve will be explained based on FIGS. 4 to 6. In FIG. 4, 100 is an aluminum case of an aluminum electrolytic capacitor.
A sealing plate 101 made of phenolic resin is attached to the open end of the aluminum case 100 via a sealing member 102 such as a square ring or an O-ring. Further, the element 103 housed in the aluminum case 100 is connected to the lead wire 10 through the connection parts 104, 104 attached to the sealing plate 101.
5,105. The element 103 is a stack of an aluminum layer and a paper layer, and
The paper layer is impregnated with an electrolyte of ethylene glycol and seven other chemicals.
１０６は、封口板１０１の孔に挿着された防爆
弁であり、この防爆弁１０６は第５図に示すよう
に略断面逆Ｕ字形の円筒体から成り、上部に薄肉
部１０６ａが形成されている。 Reference numeral 106 denotes an explosion-proof valve inserted into a hole in the sealing plate 101. As shown in FIG. There is.
また、第６図Ａ，Ｂに示す従来の防爆弁１０７
は還状の平板から成り、その中央部に薄肉部１０
７ａを有すると共に、その周縁部に屈曲凹部１０
７ｂを有し、この屈曲凹部１０７ｂを封口板１０
１に形成した溝１０１ａに係合させ、次いでワツ
シヤ１０８を屈曲凹部１０７ｂに嵌着すること
で、屈曲凹部１０７ｂをワツシヤ１０８で挟持し
て溝１０１ａ内に取付けるものであつた。 Moreover, the conventional explosion-proof valve 107 shown in FIGS. 6A and 6B
consists of a ring-shaped flat plate, with a thin section 10 in the center.
7a, and a bent recess 10 at the peripheral edge thereof.
7b, and the bent recess 107b is connected to the sealing plate 10.
1, and then fit the washer 108 into the bent recess 107b, so that the bent recess 107b was held between the washer 108 and installed in the groove 101a.
（考案が解決しようとする問題点）
しかしながら、上記した第４図及び第５図に示
す従来例にあつては、防爆弁１０６の形状が略断
面逆Ｕ字形のため、下方からの組込みは比較的容
易であるが、取付孔との係合代が少ないため、組
立時及び使用時に封口板１０１の孔から脱落し易
い。このため、所定の圧力（８Kg／cm2）に達する
前に抜け出すことがあり、所期の目的に供し得な
い。一方、組付けの容易性を図るため締代を小さ
くすると、シール性が低下するという問題点があ
つた。(Problem to be solved by the invention) However, in the conventional example shown in FIGS. 4 and 5, the explosion-proof valve 106 has a substantially inverted U-shaped cross section, so it is difficult to assemble it from below. Although it is easy to use, since the engagement with the mounting hole is small, it is easy to fall off from the hole of the sealing plate 101 during assembly and use. For this reason, it may escape before reaching a predetermined pressure (8 kg/cm 2 ), and it cannot be used for the intended purpose. On the other hand, when the tightening allowance is made smaller in order to facilitate assembly, there is a problem in that the sealing performance is reduced.
また、第６図に示す防爆弁１０７においては、
ワツシヤ１０８で係止するため、その分だけ取付
工数が増加し、コスト高となる。また、材料が軟
質のシリコンゴムのためワツシヤ１０８で係止す
ると屈曲凹部１０７ｂから切断され易く、防爆弁
の機能を営めない。更に薄肉部１０７ａが封口板
１０１の上面に位置しているので、下方より内圧
がかかると全体が上方へ膨出し、封口板１０１の
上面から離れた防爆弁１０７の内面全域に内部圧
が加わるため、防爆弁の肉厚にバラツキがあると
破裂予定部以外の部分が破れて使用者に不安感を
与えるという問題点があつた。 Furthermore, in the explosion-proof valve 107 shown in FIG.
Since the washer 108 is used for locking, the number of installation steps increases accordingly, resulting in higher costs. Further, since the material is soft silicone rubber, when it is locked with the washer 108, it is easily cut off from the bent recess 107b, and cannot function as an explosion-proof valve. Furthermore, since the thin wall portion 107a is located on the upper surface of the sealing plate 101, when internal pressure is applied from below, the whole bulges upward, and internal pressure is applied to the entire inner surface of the explosion-proof valve 107 away from the upper surface of the sealing plate 101. However, if there were variations in the wall thickness of the explosion-proof valve, there was a problem in that parts other than the expected rupture part would rupture, giving the user a sense of anxiety.
そこで、本考案は従来例の上記した問題点を解
決するためになされたもので、その目的とすると
ころは、低圧下（８Kg／cm2）の状態で脱落するの
を未然に防止し、併せて内部ガスのシール性を向
上させ得る防爆弁を提供することにある。 Therefore, the present invention was devised to solve the above-mentioned problems of the conventional example, and its purpose is to prevent it from falling under low pressure (8 kg/cm 2 ), and to An object of the present invention is to provide an explosion-proof valve that can improve internal gas sealing performance.
（問題点を解決するための手段）
上記目的を達成するために、本考案にあつて
は、電解コンデンサーの封口板に貫通形成した異
径の取付孔内に段付き円筒体の弁本体を挿着して
成る防爆弁であつて、前記取付孔の第２内壁に密
接せしめられるビードを備えた大径の胴部材と、
前記取付孔の段差部に係合せしめられる係止段部
を介して、上記胴部材と一体的に連続し頂部を簿
膜で被覆した小径の首部材とによつて弁本体を形
成し、弁本体の首部材には前記取付孔の第１内壁
と係合する鍔部を設けると共に、弁本体の胴部材
には半径方向外方へ突出して封口板の下面と係合
する外向きフランジを突設することにより構成さ
れている。(Means for Solving the Problems) In order to achieve the above object, in the present invention, a stepped cylindrical valve body is inserted into mounting holes of different diameters formed through the sealing plate of an electrolytic capacitor. an explosion-proof valve comprising: a large-diameter body member having a bead that is brought into close contact with a second inner wall of the mounting hole;
A valve body is formed by a small-diameter neck member that is integrally continuous with the body member and whose top portion is covered with a membrane, through a locking step that engages with the step of the mounting hole. The neck member of the main body is provided with a flange that engages with the first inner wall of the mounting hole, and the body member of the valve main body is provided with an outward flange that projects radially outward and engages with the lower surface of the sealing plate. It is configured by setting up
（実施例）
以下に本考案を図示の実施例に基づいて説明す
ると、第１図乃至第３図において、１は概して段
付きの円筒体より成る弁本体で、この弁本体１は
アルミ電解コンデンサーの封口板１０に貫通形成
した異径の取付孔１１に挿着されるものである。
更に詳述すると、弁本体１は概ね大径の胴部材２
と該胴部材２に係止段部３を介して連続する小径
の首部材４とから成つており、この胴部材２はそ
の外周中途部に軸方向へ所定の間隔を設けて配置
される複数条の還状ビード２ａ，…を備えている
と共に、外周下端部には半径方向外方へ突出する
環状の外向きフランジ２ｂを一体的に有してい
る。この場合において、胴部材２の外周に設けた
ビード２ａ部の外径は前記取付孔１１の第２内壁
１１ｂ（第１内壁の内径より大きい）の内径より
若干大きく、また外向きフランジ２ｂ部の外径は
該取付孔１１の第２内壁１１ｂの内径より相当大
きく設定されている。一方、胴部材２と係止段部
３を介して連続する首部材４の頂部は薄肉部４ａ
によつて被覆されており、また上記首部材４の上
端外周には半径方向外方へ突出する環状の鍔部４
ｂが形成され、首部材４の剛性を高めている。而
して、この首部材４は組付け時に取付孔１１の第
１内壁１１ａに対して隙間Ｓが形成されるように
その外径を設定されている。(Embodiment) The present invention will be explained below based on the illustrated embodiment. In Figs. 1 to 3, 1 is a valve body generally made of a stepped cylindrical body, and this valve body 1 is an aluminum electrolytic capacitor. It is inserted into attachment holes 11 of different diameters formed through the sealing plate 10 of.
More specifically, the valve body 1 includes a body member 2 having a generally large diameter.
and a small-diameter neck member 4 that is continuous to the body member 2 via a locking step 3, and this body member 2 has a plurality of neck members arranged at a predetermined interval in the axial direction in the middle of its outer circumference. It is provided with circular circular beads 2a, . . . , and integrally has an annular outward flange 2b projecting radially outward at the lower end of the outer periphery. In this case, the outer diameter of the bead 2a provided on the outer periphery of the body member 2 is slightly larger than the inner diameter of the second inner wall 11b (larger than the inner diameter of the first inner wall) of the mounting hole 11, and the outer diameter of the outward flange 2b The outer diameter is set to be considerably larger than the inner diameter of the second inner wall 11b of the attachment hole 11. On the other hand, the top part of the neck member 4 that is continuous with the body member 2 via the locking step part 3 has a thin wall part 4a.
The upper end outer periphery of the neck member 4 has an annular collar portion 4 projecting outward in the radial direction.
b is formed to increase the rigidity of the neck member 4. The outer diameter of the neck member 4 is set so that a gap S is formed with respect to the first inner wall 11a of the mounting hole 11 when the neck member 4 is assembled.
次に、上記のように構成された弁本体１を封口
板１０の取付孔１１に挿着すると、第２図に示す
ように、首部材４の鍔部４ｂが第１内壁１１ａの
傾斜部１１ｄに当接すると共に、胴部材２の係止
段部３が取付孔１１の段差部１１ｃに当接して係
止され、さらに胴部材２のビード２ａが第２内壁
１１ｂに圧接される。なお頂部の薄肉部４ａは、
封口板１０上面より上方へ突出しないように取付
孔１１に内在するようにしてある。 Next, when the valve body 1 configured as described above is inserted into the mounting hole 11 of the sealing plate 10, as shown in FIG. At the same time, the locking step 3 of the body member 2 comes into contact with and is locked to the step 11c of the attachment hole 11, and the bead 2a of the body member 2 is pressed against the second inner wall 11b. Note that the thin wall portion 4a at the top is
It is arranged to remain within the mounting hole 11 so as not to protrude upward from the upper surface of the sealing plate 10.
そして、弁本体１にコンデンサー内部から圧力
が加わつた状態では、第３図に示すように、外向
きフランジ２ｂが封口板１０の下面側に折曲して
当接し抜け防止としての機能を果すと共に、補助
的なシール効果をも有する。さらに内圧が高まつ
て規定の圧力（８〜10Kg／cm2）に達すると、薄肉
部４ａが確実に破裂して内圧を逃がし、電解コン
デンサーの破損等を未然に防止するのであるが、
本考案に係る防爆弁においては下側への脱落防止
として鍔部４ｂを形成すると共に、上側への脱落
防止として係止段部３を形成しているので、規定
圧力に達する前に防爆弁がコンデンサーケースか
ら抜けることはない。更に、シール性を向上させ
るために、胴部材２にビード２ａを形成して第２
内壁１１ｂに対して圧接するように締代を与え、
且つ封口板１０の下面に延出する外向きフランジ
２ｂを胴部材２に形成して、内圧の増加に従つて
封口板１０の下面と密接する補助的なシール機能
を果させているので、内部ガスが外方へ洩れる心
配もない。 When pressure is applied to the valve body 1 from inside the condenser, the outward flange 2b bends and comes into contact with the lower surface of the sealing plate 10, as shown in FIG. , also has an auxiliary sealing effect. When the internal pressure increases further and reaches a specified pressure (8 to 10 kg/cm 2 ), the thin wall portion 4a will surely rupture, releasing the internal pressure and preventing damage to the electrolytic capacitor.
In the explosion-proof valve according to the present invention, the flange 4b is formed to prevent the valve from falling downward, and the locking step 3 is formed to prevent the valve from falling upward, so that the explosion-proof valve closes before the specified pressure is reached. It never comes out of the condenser case. Furthermore, in order to improve sealing performance, a bead 2a is formed on the body member 2 and a second bead 2a is formed on the body member 2.
Applying a tightening margin so as to press against the inner wall 11b,
In addition, an outward flange 2b extending to the lower surface of the sealing plate 10 is formed on the body member 2 to perform an auxiliary sealing function of coming into close contact with the lower surface of the sealing plate 10 as the internal pressure increases. There is no need to worry about gas leaking outside.
尚、本考案は、上記実施例に限定されるもので
なく、ビードは２条でなく、それ以上形成しても
よく、その形状もリツプ状に形成してもよい。 It should be noted that the present invention is not limited to the above-mentioned embodiment, and the number of beads may be more than two, and the bead may be formed into a lip shape.
（考案の効果）
本考案に係る防爆弁は以上の構成及び作用から
なるもので、組付後や使用時でも低圧下の状態で
離脱することがなく、また内部ガスのシール性を
大幅に向上させることができる。さらに従来例の
ようにワツシヤで取付けることがないので、部品
点数及び工数を低減させ得る効果を奏する。(Effects of the invention) The explosion-proof valve according to the invention has the above-mentioned structure and function, so that it will not come off under low pressure even after assembly or during use, and the sealing performance of the internal gas is greatly improved. can be done. Furthermore, since there is no need to attach with washers as in the conventional example, the number of parts and man-hours can be reduced.
第１図は本考案に係る防爆弁の一実施例を示す
断面図、第２図は同実施例の封口板への取付状態
を示す要部断面図、第３図は同実施例の加圧時の
状態を示す要部断面図、第４図は従来の防爆弁の
取付状態を示す要部断面図、第５図Ａ，Ｂは同従
来例を示し、Ａは取付状態を示す要部断面図、Ｂ
は防爆弁の断面図、第６図Ａ，Ｂは他の従来例の
防爆弁を示し、Ａは取付状態を示す要部断面図、
Ｂはその防爆弁の断面図である。
符号の説明、１……弁本体、２……胴部材、２
ａ……ビード、２ｂ……外向きフランジ、３……
係止段部、４……首部材、４ａ……薄肉部、４ｂ
……鍔部、１０……封口板、１１……取付孔、１
１ａ……第１内壁、１１ｂ……第２内壁、１１ｃ
……段差部、Ｓ……隙間。
Fig. 1 is a sectional view showing an embodiment of the explosion-proof valve according to the present invention, Fig. 2 is a sectional view of the main part showing how the embodiment is attached to a sealing plate, and Fig. 3 is a pressurized version of the embodiment. Fig. 4 is a sectional view of the main part showing the installation state of a conventional explosion-proof valve; Fig. 5 A and B show the same conventional example, and A is a sectional view of the main part showing the installation state. Figure, B
6 is a sectional view of the explosion-proof valve, FIGS. 6A and 6B show other conventional explosion-proof valves, and A is a sectional view of the main part showing the installed state.
B is a sectional view of the explosion-proof valve. Explanation of symbols, 1... Valve body, 2... Body member, 2
a...Bead, 2b...Outward flange, 3...
Locking stepped portion, 4... Neck member, 4a... Thin wall portion, 4b
...Flame part, 10...Sealing plate, 11...Mounting hole, 1
1a...first inner wall, 11b...second inner wall, 11c
...Step, S...Gap.
Claims (1)
の取付孔内に段付き円筒体の弁本体を挿着して成
る防爆弁であつて、前記取付孔の第２内壁に密接
せしめられるビードを備えた大径の胴部材と、前
記取付孔の段差部に係合せしめられる係止段部を
介して、上記胴部材と一体的に連続し頂部を簿膜
で被覆した小径の首部材とによつて弁本体を形成
し、弁本体の首部材には前記取付孔の第１内壁と
係合する鍔部を設けると共に、弁本体の胴部材に
は半径方向外方へ突出して封口板の下面と係合す
る外向きフランジを突設したことを特徴とする防
爆弁。 An explosion-proof valve comprising a stepped cylindrical valve body inserted into a mounting hole of different diameter formed through a sealing plate of an electrolytic capacitor, the valve having a bead that is brought into close contact with a second inner wall of the mounting hole. A large-diameter body member and a small-diameter neck member integrally continuous with the body member and having a top portion covered with a membrane through a locking step that engages with the stepped portion of the mounting hole. A valve body is formed, and the neck member of the valve body is provided with a flange that engages with the first inner wall of the mounting hole, and the body member of the valve body is provided with a flange that protrudes radially outward and engages with the lower surface of the sealing plate. An explosion-proof valve characterized by a protruding outward flange that fits together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14848885U JPH0246041Y2 (en) | 1985-09-28 | 1985-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14848885U JPH0246041Y2 (en) | 1985-09-28 | 1985-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6258035U JPS6258035U (en) | 1987-04-10 |
| JPH0246041Y2 true JPH0246041Y2 (en) | 1990-12-05 |
Family
ID=31062802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14848885U Expired JPH0246041Y2 (en) | 1985-09-28 | 1985-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246041Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6104535B2 (en) * | 2012-08-09 | 2017-03-29 | Nok株式会社 | Explosion-proof valve structure and manufacturing method thereof |
| JP6406491B2 (en) * | 2013-03-22 | 2018-10-17 | 日本ケミコン株式会社 | Power storage device |
| JP6489124B2 (en) * | 2014-07-04 | 2019-03-27 | 日本ケミコン株式会社 | Capacitor |
| CN116982129A (en) | 2021-02-26 | 2023-10-31 | 日本贵弥功株式会社 | Valve structure, sealing component, power storage device and manufacturing method thereof |
-
1985
- 1985-09-28 JP JP14848885U patent/JPH0246041Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6258035U (en) | 1987-04-10 |
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