JPH0537407Y2 - - Google Patents
Info
- Publication number
- JPH0537407Y2 JPH0537407Y2 JP1987027313U JP2731387U JPH0537407Y2 JP H0537407 Y2 JPH0537407 Y2 JP H0537407Y2 JP 1987027313 U JP1987027313 U JP 1987027313U JP 2731387 U JP2731387 U JP 2731387U JP H0537407 Y2 JPH0537407 Y2 JP H0537407Y2
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- pressure
- electrode
- opening
- rib
- 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
- 239000012212 insulator Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 15
- 239000003792 electrolyte Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、電子機器等の電源として使用される
電解液電池の圧力安全逃がし装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pressure safety relief device for an electrolyte battery used as a power source for electronic equipment and the like.
従来から、電解液電池として、第３図に示すよ
うにステンレス製の電極缶１の上端開口に同じく
ステンレス製の封口体２を冠合し、該封口体２の
中央に形成した開口２ａに対して断面コ字形の環
状を呈する絶縁体４を介してピン状のステンレス
製電極端子３を封着したものが知られている。こ
の電池の組み付けに際しては、あらかじめ電極缶
１内に正極と負極（ともに図示せず）を絶縁配置
し、電解液を注入する一方で、封口体２に絶縁体
４を嵌合し、該絶縁体４に電極端子３を通し、さ
らに絶縁体４の下側にスナツプリング５を配し、
電極端子３の下端３ａを潰してカシメた上で、封
口体２を電極缶１に溶接冠合する。また他の例と
して、第４図に示すように封口体（２チタン製）
と電極端子（３チタン製）の間にアルミナ絶縁体
４′を加熱接着するハーメチツク方式のものや、
第５図に示すようにガラスフリツト６を用いて封
口体（２ステンレス製）に電極端子（３コバール
製）を封着するものが知られている。
Conventionally, as an electrolyte battery, as shown in FIG. 3, a sealing body 2 also made of stainless steel is fitted to the upper end opening of an electrode can 1 made of stainless steel, and an opening 2a formed in the center of the sealing body 2 is connected. It is known that a pin-shaped stainless steel electrode terminal 3 is sealed via an annular insulator 4 having a U-shaped cross section. When assembling this battery, a positive electrode and a negative electrode (both not shown) are placed insulated in the electrode can 1 in advance, and while an electrolyte is injected, an insulator 4 is fitted into the sealing body 2, and the insulator 4 is Pass the electrode terminal 3 through the insulator 4, and place the snap ring 5 on the underside of the insulator 4.
After crushing and caulking the lower end 3a of the electrode terminal 3, the sealing body 2 is welded to the electrode can 1. As another example, as shown in Figure 4, a sealing body (made of titanium 2)
Hermetic type in which alumina insulator 4' is heat bonded between the electrode terminal (made of 3 titanium),
As shown in FIG. 5, it is known that an electrode terminal (made of Kovar 3) is sealed to a sealing body (made of stainless steel 2) using a glass frit 6.
これらの電解液電池は、各種電子機器の電源と
して使用される。最近、電子機器は、その低消費
電力化や長寿命化が急速に進み、この種電池に対
しても長期間安定した性能を維持することが求め
られるが、上記従来の電池にはそのいずれにも内
部圧力が異常に上昇して電池全体が破壊するおそ
れがある。
These electrolyte batteries are used as power sources for various electronic devices. Recently, electronic devices have rapidly become lower in power consumption and have a longer lifespan, and this type of battery is required to maintain stable performance over a long period of time. Otherwise, the internal pressure may rise abnormally and the entire battery may be destroyed.
本考案は上記事情に鑑み、内部圧力の上昇によ
る電池全体の破壊を防止し、長期信頼性を高める
ことを目的とするものである。 In view of the above circumstances, the present invention aims to prevent the entire battery from being destroyed due to an increase in internal pressure and to improve long-term reliability.
〔問題点を解決するための手段〕
すなわち本考案に係る圧力安全逃がし装置は、
電極缶の封口体に形成した開口に、絶縁体を介し
て電極端子を封着した電解液電池における安全機
構であつて、電極端子と絶縁体が互いに分離しな
い一体状をなすとともに、絶縁体の外周に前記開
口の内側端面と掛合する抜け止め用のリブを設
け、前記絶縁体の本体部分とリブとの間を、外側
から切れ込んだ適宜深さの環状の切れ目で形成さ
れた薄肉部を介して径方向に連結した構成になる
ものである。[Means for solving the problem] In other words, the pressure safety relief device according to the present invention has the following features:
This is a safety mechanism for electrolyte batteries in which an electrode terminal is sealed to an opening formed in the sealing body of an electrode can through an insulator. A rib for preventing slipping is provided on the outer periphery to engage with the inner end surface of the opening, and a thin wall portion formed by an annular cut of an appropriate depth cut from the outside is inserted between the main body portion of the insulator and the rib. The structure is such that they are connected in the radial direction.
この構成によれば、何らかの理由で電池の内部
圧力が異常に高くなると該圧力を受けて外力へ押
圧された絶縁体は、切れ目から破断して電極端子
もろとも封口体の開口から離脱し、缶内圧力を開
放する。
According to this configuration, if the internal pressure of the battery becomes abnormally high for some reason, the insulator, which is pressed by an external force under the pressure, breaks at the cut and separates from the opening of the sealing body together with the electrode terminal, and Release internal pressure.
つぎに、本考案の実施例を図面にしたがつて説
明する。
Next, embodiments of the present invention will be described with reference to the drawings.
第１図において符号１１は内部に正極と負極
（ともに図示せず）を絶縁配置して電解液を封入
したステンレス製の電極缶、１２は電極缶１１の
上縁に嵌合・溶接された封口体、１３は周縁１２
ｂを缶内へ向けて屈曲した封口体１２の開口１２
ａに絶縁体１４を介して封着された電極端子であ
る。絶縁体１４は弾性を有し、開口１２ａと電極
端子１３との間で適当な締め代が設定されて缶内
電解液に対するシール力を付与されている。絶縁
体１４外周には前記開口周縁１２ｂの内側端面１
２ｃと掛合して該絶縁体１４を抜け止めしてなる
リブ１４ａが形成されており、このリブ１４ａと
絶縁体１４本体部分との間は、外側から切れ込ん
だ環状の切れ目１４ｂが形成され、これによる薄
肉部１４ｃを介して径方向に連結されている。電
極端子１３はその下端が潰されて形成されたカシ
メ部１３ａを有し、これにより絶縁体１４と分離
不可能な状態に一体化されている。 In FIG. 1, reference numeral 11 is a stainless steel electrode can in which a positive electrode and a negative electrode (both not shown) are insulated and filled with an electrolyte, and 12 is a sealing cap fitted and welded to the upper edge of the electrode can 11. body, 13 is periphery 12
Opening 12 of the sealing body 12 bent toward the inside of the can
This is an electrode terminal sealed to a through an insulator 14. The insulator 14 has elasticity, and a suitable interference is set between the opening 12a and the electrode terminal 13 to provide a sealing force against the electrolyte in the can. The inner end surface 1 of the opening periphery 12b is provided on the outer periphery of the insulator 14.
A rib 14a is formed which engages with the insulator 14 to prevent it from coming off, and an annular cut 14b cut from the outside is formed between the rib 14a and the main body of the insulator 14. They are connected in the radial direction via a thin wall portion 14c. The electrode terminal 13 has a caulked portion 13a formed by crushing its lower end, and is thereby integrated with the insulator 14 in an inseparable manner.
上記構成において、何らかの原因で缶内圧力が
上昇すると、該圧力によつて電極端子１３と絶縁
体１４が外側へ押圧される。そして、この圧力が
所定の許容限度を超えて異常に上昇した場合は、
絶縁体１４が封口体１２の開口１２ａの外側へ向
けて押圧されることによつて、第２図Ａに示すよ
うに、前記開口１２の内側端面１２ｃと掛合した
リブ１４ａが切れ目１４ｂを開くように変形され
るので、絶縁体１４の本体部分とリブ１４ａとの
間の径方向に延在する薄肉部１４ｃが前記切れ目
１４ｂから引き裂かれるようにして破断する。こ
のため、前記絶縁体１４の本体部分は、第２図Ｂ
に示すように、電極端子１３と一体に封口体１２
から抜け出て圧力Ｐが開放される。 In the above configuration, if the pressure inside the can increases for some reason, the electrode terminal 13 and the insulator 14 are pressed outward by the pressure. And if this pressure rises abnormally beyond the predetermined permissible limit,
By pressing the insulator 14 toward the outside of the opening 12a of the sealing body 12, the rib 14a engaged with the inner end surface 12c of the opening 12 opens the cut 14b, as shown in FIG. 2A. As the insulator 14 is deformed, the radially extending thin portion 14c between the main body portion of the insulator 14 and the rib 14a is torn away from the cut 14b. Therefore, the main body portion of the insulator 14 is
As shown in FIG.
The pressure P is released.
この実施例によれば、電極端子１３および絶縁
体１４の双方が受圧して抜け出す構成になり、す
なわち圧力開放部が大きなものとなるため、急激
な圧力上昇にも対応できる。また、切れ目１４ｂ
の断面形状や、該切れ目１４ｂ部分における絶縁
体１４の肉厚を変えることにより、缶内圧力の許
容限度を調整することができる。 According to this embodiment, both the electrode terminal 13 and the insulator 14 are configured to receive pressure and escape, that is, the pressure release portion is large, so that it is possible to cope with sudden pressure increases. Also, the cut 14b
By changing the cross-sectional shape of the insulator 14 and the thickness of the insulator 14 at the cut 14b portion, the allowable limit of the pressure inside the can can be adjusted.
以上説明したとおり、本考案は電池内の圧力が
異常に高くなつたときに電極端子とこれに一体的
になる絶縁体が封口体から抜け出すことによつて
前記圧力を開放し、電池全体、ひいては該電池を
使用する電子機器の破壊を未然に防止して安全性
の向上を図るもので、絶縁体が缶内側から過大な
圧力を受けた時に、その外周の切れ目から引き裂
かれるようにして掛合リブとの間が確実に破断さ
れるため、非常に急激な圧力上昇にも即対応で
き、また、許容圧力の設定も容易であり、その実
用的効果はきわめて大きい。
As explained above, in the present invention, when the pressure inside the battery becomes abnormally high, the electrode terminal and the insulator integrated therewith escape from the sealing body, thereby releasing the pressure, thereby reducing the pressure on the entire battery, and eventually This is intended to improve safety by preventing the destruction of electronic equipment that uses these batteries.When the insulator receives excessive pressure from inside the can, the hooking rib is torn off from the cut on the outer periphery. Since the gap between the two parts is reliably broken, it is possible to immediately respond to extremely rapid pressure increases, and the allowable pressure can be easily set, so the practical effect is extremely large.
第１図は本考案圧力安全逃がし装置を有する電
解液電池の断面図、第２図は同じく圧力開放動作
を示す説明図、第３図は電解液電池の従来構造を
示す断面図、第４図および第５図は従来構造の他
の例を示す要部断面図である。
１１……電極缶、１２……封口体、１２ａ……
開口、１３……電極端子、１３ａ……カシメ部、
１４……絶縁体、１４ａ……リブ、１４ｂ……切
れ目。
Fig. 1 is a sectional view of an electrolyte battery having the pressure safety relief device of the present invention, Fig. 2 is an explanatory diagram showing the same pressure release operation, Fig. 3 is a sectional view showing the conventional structure of an electrolyte battery, and Fig. 4 and FIG. 5 is a sectional view of a main part showing another example of the conventional structure. 11... Electrode can, 12... Sealing body, 12a...
Opening, 13... Electrode terminal, 13a... Caulking part,
14... Insulator, 14a... Rib, 14b... Cut.
Claims (1)
して電極端子を封着した電解液電池における安全
機構であつて、電極端子と絶縁体が互いに分離し
ない一体状をなすとともに、絶縁体の外周に、前
記開口の内側端面と掛合する抜け止め用のリブを
設け、前記絶縁体の本体部分とリブとの間を、外
側から切れ込んだ適宜深さの環状の切れ目で形成
された薄肉部を介して径方向に連結したことを特
徴とする圧力安全逃がし装置。 This is a safety mechanism for electrolyte batteries in which an electrode terminal is sealed to an opening formed in the sealing body of an electrode can through an insulator. A rib for preventing slippage is provided on the outer periphery to engage with the inner end surface of the opening, and a thin part formed by an annular cut of an appropriate depth cut from the outside is formed between the main body portion of the insulator and the rib. A pressure relief device characterized in that it is radially connected through a pressure relief device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987027313U JPH0537407Y2 (en) | 1987-02-27 | 1987-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987027313U JPH0537407Y2 (en) | 1987-02-27 | 1987-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63135764U JPS63135764U (en) | 1988-09-06 |
| JPH0537407Y2 true JPH0537407Y2 (en) | 1993-09-21 |
Family
ID=30829223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987027313U Expired - Lifetime JPH0537407Y2 (en) | 1987-02-27 | 1987-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537407Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7544439B2 (en) * | 2005-04-27 | 2009-06-09 | The Gillette Company | Venting water-tight battery-operated devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650049A (en) * | 1979-09-12 | 1981-05-07 | Berec Group Ltd | Sealed galvani battery |
| JPS5941867B2 (en) * | 1976-02-26 | 1984-10-11 | 日本石油化学株式会社 | resin multilayer structure |
| JPS6226863B2 (en) * | 1984-04-24 | 1987-06-11 | Stopinc Ag |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941867U (en) * | 1982-09-02 | 1984-03-17 | 日立マクセル株式会社 | sealed battery |
| JPS59192267U (en) * | 1983-06-09 | 1984-12-20 | 日本電池株式会社 | sealed lithium battery |
| JPS6226863U (en) * | 1985-07-31 | 1987-02-18 |
-
1987
- 1987-02-27 JP JP1987027313U patent/JPH0537407Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941867B2 (en) * | 1976-02-26 | 1984-10-11 | 日本石油化学株式会社 | resin multilayer structure |
| JPS5650049A (en) * | 1979-09-12 | 1981-05-07 | Berec Group Ltd | Sealed galvani battery |
| JPS6226863B2 (en) * | 1984-04-24 | 1987-06-11 | Stopinc Ag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63135764U (en) | 1988-09-06 |
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