JPH0543466Y2 - - Google Patents
Info
- Publication number
- JPH0543466Y2 JPH0543466Y2 JP1987150688U JP15068887U JPH0543466Y2 JP H0543466 Y2 JPH0543466 Y2 JP H0543466Y2 JP 1987150688 U JP1987150688 U JP 1987150688U JP 15068887 U JP15068887 U JP 15068887U JP H0543466 Y2 JPH0543466 Y2 JP H0543466Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing body
- outer case
- sealing
- protrusion
- electrolytic capacitor
- 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
- 238000007789 sealing Methods 0.000 claims description 59
- 239000003990 capacitor Substances 0.000 claims description 20
- 230000003811 curling process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
この考案は、非真円の開口部を持つ外装ケース
を用いた電解コンデンサの封口構造に関する。
This invention relates to a sealing structure for an electrolytic capacitor using an exterior case having a non-perfect circular opening.
従来、アルミニウム板などの金属板で成形加工
され、その開口形状が円形である外装ケースを用
いた電解コンデンサでは、その開口部にゴムなど
の弾性材料で形成された封口体を挿入した後、封
口体の周面部における外装ケースを加締めるとと
もに、その開口部の周縁部を封口体の上面部にカ
ーリング処理する封口体が用いられている。
Conventionally, in electrolytic capacitors that use an exterior case that is formed from a metal plate such as an aluminum plate and has a circular opening, a sealing body made of an elastic material such as rubber is inserted into the opening, and then the sealing A sealing body is used in which the outer case is crimped on the peripheral surface of the body, and the peripheral edge of the opening is curled to the upper surface of the sealing body.
ところが、このような封口構造では、外装ケー
スの開口形状が円形である場合には、カーリング
処理が均一になるので、相当高度な封口強度が得
られるのに対し、開口形状が長円や矩形など非真
円である場合には、同様のカーリング処理を行つ
ても、曲率が部分的に異なるため、カーリング処
理が不均一になり、しかも、加締めが部分的に偏
つて封口強度が部分的に変化し、平坦部分で気密
性が低下するなど、十分な気密性の保持を実現す
ることができなかつた。
このような非真円の開口部を持つ外装ケースを
用いた電解コンデンサでは、次のような封口構造
が取られている。
即ち、この種の電解コンデンサでは、第１図に
示すように、外装ケース２が、内部に収容する電
解コンデンサ素子４の形態に応じて開口形状を円
形、長円形、あるいは、実装上の都合などの要請
から矩形などに形成される。
この外装ケース２の開口部を封じる封口体６
は、第２図のＡおよびＢに示すように、外装ケー
ス２の開口部の形状に合わせた断面形状を持つ柱
状体を以て構成し、その側面部に全周に亘つて１
または２以上の突部を任意の間隔で形成する。
この封口体６は、その透孔１０ａ，１０ｂに電
解コンデンサ素子４の端面部に引き出されたリー
ド１２ａ，１２ｂを貫通させた後、外装ケース２
の内部に電解コンデンサ素子４とともに挿入し、
封口体６の上面側に突出させた外装ケース２の開
口縁部をその中心方向に折り曲げて封口体６の表
面に臨ませ、外装ケース２を封じる。第１図で
は、突部８の形成によつて封口体６と外装ケース
２の内壁部との間に空洞が形成されているが、こ
れは説明の都合上表したものであつて、実際には
封口体６がゴムなどの弾性材料で形成されること
から、その圧縮性によつてこのような空洞部分は
生じないものであり、仮に、生じたとしても、極
めて微小である。
このように構成することによつて、封口体６の
側面部に形成された突部８は、外装ケース２の開
口形状に応じて圧縮されるとともに、湾曲など変
形によつて、外装ケース２の内壁部と密着し、外
装ケース２の密着性を保持するのである。
したがつて、このような封口体６を用いること
によつて、外装ケース２と封口体６との密着度が
高まり、外装ケース２の端面のカーリング処理は
不要になり、第１図に示すように、その開口縁部
を封口体６の表面部に折り曲げ、即ち、加締める
ことで封口体６の飛出しの防止を図ることができ
る。
そして、封口体６は、第３図のＡおよびＢに示
すように、外装ケース２の開口形状に合わせて角
柱形に形成し、その周縁部に突部８を形成すれ
ば、外装ケース２の内壁形状に応じて圧縮、変形
を生じ、外装ケース２の内壁形状を補つて十分な
気密性を保持できる。
また、第４図に示すように、封口体６は、長円
形の外装ケース２に対応して長円形状とし、その
周縁部に断面三角形状の突部８を形成してもよ
く、この場合、突部８は第５図に示すように、断
面半円状としてもよい。
そこで、この考案は、湾曲部と平坦部とからな
る非真円の開口部を持つ外装ケースの気密性を高
めた電解コンデンサの封口構造を提供することを
目的とする。
However, with this type of sealing structure, when the opening shape of the outer case is circular, the curling process becomes uniform and a considerably high degree of sealing strength can be obtained, whereas when the opening shape is oval, rectangular, etc. If the shape is not a perfect circle, even if the same curling process is performed, the curvature will be different in some parts, so the curling process will be uneven, and the tightening will be uneven in some parts, resulting in a partial sealing strength. It was not possible to maintain sufficient airtightness, as the airtightness deteriorated in flat areas. An electrolytic capacitor using an exterior case with such a non-perfect circular opening has the following sealing structure. That is, in this type of electrolytic capacitor, as shown in FIG. 1, the outer case 2 has an opening shape that is circular, oval, or shaped depending on the shape of the electrolytic capacitor element 4 accommodated therein due to mounting reasons. It is formed into a rectangular shape due to the request of A sealing body 6 that seals the opening of this exterior case 2
As shown in A and B in FIG.
Alternatively, two or more protrusions are formed at arbitrary intervals. After the leads 12a and 12b drawn out to the end face of the electrolytic capacitor element 4 are passed through the through holes 10a and 10b of the sealing body 6, the outer case 2 is opened.
Insert it together with the electrolytic capacitor element 4 inside the
The opening edge of the exterior case 2 protruding to the upper surface side of the sealing body 6 is bent toward the center so as to face the surface of the sealing body 6, and the exterior case 2 is sealed. In FIG. 1, a cavity is formed between the sealing body 6 and the inner wall of the outer case 2 due to the formation of the protrusion 8, but this is shown for convenience of explanation and is not actually Since the sealing body 6 is made of an elastic material such as rubber, such a cavity does not occur due to its compressibility, and even if it does, it will be extremely small. With this configuration, the protrusion 8 formed on the side surface of the sealing body 6 is compressed according to the opening shape of the outer case 2, and is also deformed by bending or other deformation. It comes into close contact with the inner wall and maintains the adhesion of the outer case 2. Therefore, by using such a sealing body 6, the degree of adhesion between the outer case 2 and the sealing body 6 is increased, and the curling treatment of the end face of the outer case 2 is no longer necessary, as shown in FIG. In addition, by bending the opening edge to the surface of the sealing body 6, that is, crimping it, it is possible to prevent the sealing body 6 from popping out. Then, as shown in A and B in FIG. 3, the sealing body 6 is formed into a prismatic shape to match the opening shape of the outer case 2, and a protrusion 8 is formed on the periphery of the sealing body 6. Compression and deformation occur depending on the inner wall shape, and sufficient airtightness can be maintained by compensating for the inner wall shape of the outer case 2. Further, as shown in FIG. 4, the sealing body 6 may have an oval shape corresponding to the oval outer case 2, and a protrusion 8 having a triangular cross section may be formed on the periphery. , the protrusion 8 may have a semicircular cross section as shown in FIG. Therefore, the object of this invention is to provide a sealing structure for an electrolytic capacitor that improves the airtightness of an exterior case that has a non-perfect circular opening consisting of a curved part and a flat part.
この考案の電解コンデンサの封口構造は、湾曲
部と平坦部とからなる非真円の開口部の外装ケー
スを用いてコンデンサ素子を封入する電解コンデ
ンサの封口構造であつて、前記外装ケースの前記
湾曲部及び前記平坦部に対応した側面形状とする
とともに、その平坦部側の側壁側に選択的に突部
を設けた封口体を設け、この封口体を前記外装ケ
ースに挿入して前記突部を前記外装ケースの内壁
面に密着させるとともに、前記外装ケースの開口
縁部を前記封口体の表面部に加締めて前記外装ケ
ースを封止したことを特徴とする。
The sealing structure of an electrolytic capacitor of this invention is a sealing structure of an electrolytic capacitor in which a capacitor element is enclosed using an outer case having a non-perfect circular opening consisting of a curved part and a flat part. A sealing body is provided with a side surface shape corresponding to the flat part and the flat part, and a protrusion is selectively provided on the side wall side of the flat part, and the sealing body is inserted into the outer case to remove the protrusion. The outer case is sealed by being brought into close contact with the inner wall surface of the outer case and by crimping the opening edge of the outer case to the surface of the sealing body.
湾曲部と平坦部とからある非真円の開口部を持
つ外装ケースでは、封口体の断面形状を外装ケー
スの開口形状に合わせても、封止状態が曲率の違
いから部分的に変化し、強力にカーリング処理を
行つても、依然として気密性の保持ないし信頼性
が不十分になるおそれがある。
そこで、この考案では、封口体の平坦部側に選
択的に突部を形成し、この突部を外装ケースの平
坦部の内壁面に密着させ、外装ケースのカーリン
グ処理と相俟つて高度な気密性の保持を実現して
いる。
そして、封口体の平坦部側の壁面に選択的に突
部を形成したことは、非真円の封口体に全周に亘
つて突部を形成した場合に比較し、気密性保持の
弱点である平坦部を補完でき、より高い気密性の
保持ないし信頼性を実現することができるのであ
る。
In an exterior case with a non-perfect circular opening consisting of a curved part and a flat part, even if the cross-sectional shape of the sealing body is matched to the opening shape of the exterior case, the sealed state will partially change due to the difference in curvature. Even if a strong curling process is performed, there is still a risk that the airtightness or reliability will be insufficient. Therefore, in this invention, a protrusion is selectively formed on the flat side of the sealing body, and this protrusion is brought into close contact with the inner wall surface of the flat part of the outer case, and in combination with the curling treatment of the outer case, a high degree of airtightness is achieved. Achieves preservation of sexuality. In addition, selectively forming protrusions on the wall surface of the flat side of the sealing body is a weak point in maintaining airtightness compared to forming protrusions around the entire circumference of a non-round sealing body. It is possible to complement certain flat areas and achieve higher airtightness or reliability.
以下、この考案を図面に示した実施例を参照し
て詳細に説明する。
第６図は、この考案の電解コンデンサの封口構
造に用いられる封口体を示している。
この封口体６は、開口部が湾曲部と平坦部とか
らなる非真円の開口部を持つ外装ケース２に対応
するものである。即ち、この封口体６は、その外
装ケース２の湾曲部及び平坦部に対応した壁面を
備えており、平坦部側には選択的に突部８が形成
されている。この突部８は、外装ケース２の平坦
部側の内壁面に密着させられ、その断面形状ない
し形成位置は、例えば、第２図のＢ、第３図のＢ
又は第５図に記載の封口体６から明らかである。
このようにすれば、矩形、長円などの非真円の
開口部を持つ外装ケース２において、封口体６の
平坦部分を補つて封口強度を強化し、気密性を高
めることができる。
次に、第７図は、この考案の電解コンデンサの
封口構造に用いられる封口体の他の実施例を示し
ている。
第６図に示した実施例は、４辺の平坦部と４つ
の湾曲部とからなる四角形状を成す非真円である
のに対し、この実施例は、一対の湾曲部と平坦部
とからなる長円形を成す封口体６について示した
ものである。
このような長円形の封口体６では、第６図の実
施例と同様に平坦部側に選択的に突部８を形成す
ることで、前記実施例と同様の効果が得られる。
Hereinafter, this invention will be described in detail with reference to embodiments shown in the drawings. FIG. 6 shows a sealing body used in the sealing structure of the electrolytic capacitor of this invention. This sealing body 6 corresponds to the exterior case 2 having a non-perfect circular opening including a curved portion and a flat portion. That is, the sealing body 6 has a wall surface corresponding to the curved portion and flat portion of the outer case 2, and a protrusion 8 is selectively formed on the flat portion side. This protrusion 8 is brought into close contact with the inner wall surface on the flat side of the outer case 2, and its cross-sectional shape and formation position are, for example, B in FIG. 2 and B in FIG. 3.
Or it is clear from the sealing body 6 shown in FIG. In this way, in the exterior case 2 having a non-perfect circular opening such as a rectangular or elliptical opening, the flat portion of the sealing body 6 can be supplemented to strengthen the sealing strength and improve airtightness. Next, FIG. 7 shows another embodiment of the sealing body used in the sealing structure of the electrolytic capacitor of this invention. The embodiment shown in FIG. 6 is a non-perfect circle with a rectangular shape consisting of four flat parts and four curved parts, whereas this embodiment is made of a pair of curved parts and a flat part. This figure shows a sealing body 6 having an oval shape. In such an oval sealing body 6, by selectively forming the protrusion 8 on the flat side as in the embodiment shown in FIG. 6, the same effects as in the previous embodiment can be obtained.
以上説明したように、この考案によれば、外装
ケースの湾曲部及び平坦部に対応した側面形状と
するとともに、その平坦部側の側壁側に選択的に
突部を形成し、この突部と外装ケースの平坦面を
成す内壁部とを密着させるとともに、外装ケース
の開口縁部を加締めて封口体の表面に臨ませたの
で、封口体の突部は非真円を成す外装ケースに応
じた圧縮状態で外装ケースの形状を補完し、封口
体と外装ケースとの密着性を高めることができ、
高度な密封性を実現することができる。
As explained above, according to this invention, the side surface shape corresponds to the curved part and flat part of the outer case, and a protrusion is selectively formed on the side wall side of the flat part, and the protrusion and In addition to closely contacting the flat inner wall of the outer case, the opening edge of the outer case is swaged to expose the surface of the sealing body, so that the protrusion of the sealing body can conform to the outer case, which is not a perfect circle. It complements the shape of the outer case in the compressed state and improves the adhesion between the sealing body and the outer case.
A high level of sealing performance can be achieved.
第１図は電解コンデンサの封口構造を示す断面
図、第２図は第１図に示した電解コンデンサの封
口構造における封口体を示す図、第３図ないし第
５図は電解コンデンサの封口構造における封口体
を示す図、第６図及び第７図はこの考案の電解コ
ンデンサの封口構造に用いられる封口体を示す平
面図である。
２……外装ケース、６……封口体、８……突
部。
Figure 1 is a sectional view showing the sealing structure of an electrolytic capacitor, Figure 2 is a diagram showing the sealing body in the sealing structure of the electrolytic capacitor shown in Figure 1, and Figures 3 to 5 are cross-sectional views of the sealing structure of the electrolytic capacitor. 6 and 7 are plan views showing the sealing body used in the sealing structure of the electrolytic capacitor of this invention. 2...Exterior case, 6...Sealing body, 8...Protrusion.
Claims (1)
の外装ケースを用いてコンデンサ素子を封入する
電解コンデンサの封口構造であつて、 前記外装ケースの前記湾曲部及び前記平坦部に
対応した側面形状とするとともに、その平坦部側
の側壁側に選択的に突部を設けた封口体を設け、
この封口体を前記外装ケースに挿入して前記突部
を前記外装ケースの内壁面に密着させるととも
に、前記外装ケースの開口縁部を前記封口体の表
面部に加締めて前記外装ケースを封止したことを
特徴とする電解コンデンサの封口構造。[Claims for Utility Model Registration] A sealing structure for an electrolytic capacitor in which a capacitor element is enclosed using an outer case having a non-perfect circular opening consisting of a curved part and a flat part, the curved part of the outer case and a sealing body having a side surface shape corresponding to the flat part and having a protrusion selectively provided on the side wall side of the flat part,
This sealing body is inserted into the exterior case to bring the protrusion into close contact with the inner wall surface of the exterior case, and the opening edge of the exterior case is crimped to the surface of the sealing body to seal the exterior case. The sealed structure of an electrolytic capacitor is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987150688U JPH0543466Y2 (en) | 1987-10-01 | 1987-10-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987150688U JPH0543466Y2 (en) | 1987-10-01 | 1987-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6457630U JPS6457630U (en) | 1989-04-10 |
| JPH0543466Y2 true JPH0543466Y2 (en) | 1993-11-02 |
Family
ID=31424054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987150688U Expired - Lifetime JPH0543466Y2 (en) | 1987-10-01 | 1987-10-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543466Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2986656B1 (en) * | 2012-02-07 | 2017-07-28 | Batscap Sa | DEVICE AND METHOD FOR MANUFACTURING AN ELECTRIC ENERGY STORAGE ASSEMBLY |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741645B2 (en) * | 1977-05-12 | 1982-09-04 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5176649U (en) * | 1974-12-13 | 1976-06-16 | ||
| JPS5741645U (en) * | 1980-08-20 | 1982-03-06 |
-
1987
- 1987-10-01 JP JP1987150688U patent/JPH0543466Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5741645B2 (en) * | 1977-05-12 | 1982-09-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6457630U (en) | 1989-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5656112A (en) | Synthetic resin container including a mouthpiece sealed by a closure and a method for sealing the same | |
| JPH0543466Y2 (en) | ||
| JP4223134B2 (en) | Sealed battery container sealing structure | |
| JPH0414924Y2 (en) | ||
| JPS5831402Y2 (en) | Electrolytic capacitor | |
| JPS5922042Y2 (en) | can sealing device | |
| JPH0432752Y2 (en) | ||
| JPH0331071Y2 (en) | ||
| JPS63245851A (en) | Process for manufacture of angular enclosed battery | |
| JPH0482171B2 (en) | ||
| JPH062906Y2 (en) | Pressure vessel | |
| JPS5923396Y2 (en) | Sealing structure of synthetic resin container capacitor | |
| JP2585992Y2 (en) | Diaphragm type switch | |
| JPH02252948A (en) | Sealing member for cylinder head cover | |
| JPS6041713Y2 (en) | elliptical capacitor | |
| JPH029195Y2 (en) | ||
| JP3058817U (en) | Container screw lid | |
| JP2890679B2 (en) | Manufacturing method of aluminum electrolytic capacitor | |
| JPH0439179Y2 (en) | ||
| JPH0351963Y2 (en) | ||
| JP2003072791A (en) | Metal lid with screw for metal container with screw | |
| KR20240038153A (en) | Double-winding structure and battery and canned food cans having the same | |
| JPH04326505A (en) | Case for electrolytic capacitor and its machining method | |
| JPH09293486A (en) | Manufacture of metal case for square sealed battery | |
| JPH0520928Y2 (en) |