JPH0412598Y2 - - Google Patents
Info
- Publication number
- JPH0412598Y2 JPH0412598Y2 JP1985134439U JP13443985U JPH0412598Y2 JP H0412598 Y2 JPH0412598 Y2 JP H0412598Y2 JP 1985134439 U JP1985134439 U JP 1985134439U JP 13443985 U JP13443985 U JP 13443985U JP H0412598 Y2 JPH0412598 Y2 JP H0412598Y2
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- electrode terminal
- electrode
- sealing body
- cylindrical edge
- 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
- 239000012212 insulator Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000003792 electrolyte Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000007849 furan resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 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
- 230000009172 bursting Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- 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、電子機器の電源として装着使用され
る電解液電池の安全性を向上させるものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention improves the safety of electrolyte batteries installed and used as power sources for electronic devices.
従来から、この種の電池として、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
レス製の電極端子３を封着したものが知られてい
る。この電池は、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、さらに絶縁体の
缶内側の端面に当接させたワツシヤ５を電極端子
３の内端３ａでカシメ固定したうえで、封口体２
を電極缶１に溶接冠合して組み立てられたもので
ある。
Conventionally, as shown in FIG. 3, this type of battery has been constructed by fitting a sealing body 2 also made of stainless steel to the upper end opening of an electrode can 1 made of stainless steel, and opening 2a formed in the center of the sealing body 2. 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. In this battery, a positive electrode and a negative electrode (both not shown) are insulated and arranged in an electrode can 1 in advance, an electrolyte is injected, and an insulator 4 is fitted into a sealing body 2.
The electrode terminal 3 is passed through the insulator 4, and the washer 5 which is brought into contact with the inner end surface of the can of the insulator is fixed by caulking with the inner end 3a of the electrode terminal 3.
is assembled by welding the cap to the electrode can 1.
また、他の例として、第４図に示すように、チ
タン製の封口体２と、同じくチタン製の電極端子
３の間にアルミナ絶縁体４′を加熱接着したハー
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を用いてステンレス製の封口体２に
コバール製の電極端子３を封着したものが知られ
ている。 As another example, as shown in FIG. 4, there is a hermetic method in which an alumina insulator 4' is heat-bonded between a titanium sealing body 2 and a titanium electrode terminal 3, and a fifth As shown in the figure, a structure in which an electrode terminal 3 made of Kovar is sealed to a sealing body 2 made of stainless steel using a glass frit 6 is known.
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、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、この種の電池に対
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、上記従来構造の電池は、液漏れが生じ
たり、電極缶１の内部圧力が上昇したときに電池
全体が破裂するおそれがあつた。
These electrolyte batteries are used as power sources for various electronic devices.Recently, electronic devices are rapidly becoming less power consuming and have longer lifespans, and these types of batteries also require stable performance over long periods of time. However, in the battery of the conventional structure described above, there was a risk that the entire battery would burst if liquid leakage occurred or the internal pressure of the electrode can 1 increased.
本考案は、上記のような事情に鑑み、電解液電
池の耐漏液性の向上を図るとともに、内部圧力が
上昇したときの電池全体の破裂を防止し、安全性
を高めようとするものである。 In view of the above-mentioned circumstances, this invention aims to improve the leakage resistance of electrolyte batteries, as well as prevent the entire battery from bursting when internal pressure increases, thereby increasing safety. .
〔問題点を解決するための手段〕
上記問題点を解決するため、本考案の電解液電
池は、電極缶の封口体内径に形成した筒状縁に弾
性を有する樹脂またはゴム製の絶縁体を介して電
極端子を気密挿入するとともに、電極端子の外周
面と絶縁体の内周面、および絶縁体の外周面と封
口体の筒状縁内周面をエポキシ樹脂またはフラン
樹脂からなる接着剤で気密接着し、電極端子と絶
縁体の接着幅よりも絶縁体と筒状縁の接着幅を小
さくしたものである。[Means for Solving the Problems] In order to solve the above problems, the electrolyte battery of the present invention includes an insulator made of elastic resin or rubber on the cylindrical edge formed in the inner diameter of the seal of the electrode can. Insert the electrode terminal airtightly through the connector, and then bond the outer circumferential surface of the electrode terminal, the inner circumferential surface of the insulator, and the outer circumferential surface of the insulator and the inner circumferential surface of the cylindrical edge of the sealing body with an adhesive made of epoxy resin or furan resin. The bonding width between the insulator and the cylindrical edge is smaller than the bonding width between the electrode terminal and the insulator.
上記構成によると、封口体の筒状縁と絶縁体と
の間、および絶縁体と電極端子の間は、接着剤の
介在によつて固定されるとともに良好な耐漏液性
が維持されており、これら三者間には固定のため
の大きな締め代を付与する必要がないので、絶縁
体は柔軟に弾性変形可能である。ここで、電極缶
内の圧力が上昇した場合、絶縁体は、絶縁体自体
およびその内周の電極端子が受ける圧力によつて
内径側の変位量が大きくなるように弾性変形し、
この圧力を吸収する。また、上記圧力がさらに上
昇を続けていくと、電極端子と絶縁体の接着幅よ
りも絶縁体と筒状縁の接着幅が小さいことから、
絶縁体と筒状縁の接着面は、缶内側の端部におい
て生じる引つ張り荷重によつてやがて剥離し、絶
縁体は電極端子とともに前記封口体内径の筒状縁
から抜け出し、缶内圧力を外部へ開放する。
According to the above configuration, the space between the cylindrical edge of the sealing body and the insulator and between the insulator and the electrode terminal are fixed by the interposition of the adhesive, and good leakage resistance is maintained. Since there is no need to provide a large interference between these three parts for fixing, the insulator can be flexibly and elastically deformed. Here, when the pressure inside the electrode can increases, the insulator deforms elastically so that the amount of displacement on the inner diameter side increases due to the pressure applied to the insulator itself and the electrode terminal on its inner circumference.
absorb this pressure. Furthermore, as the pressure continues to rise, the bonding width between the insulator and the cylindrical edge is smaller than the bonding width between the electrode terminal and the insulator.
The adhesive surface between the insulator and the cylindrical edge eventually peels off due to the tensile load generated at the inner end of the can, and the insulator, along with the electrode terminal, slips out of the cylindrical edge of the inner diameter of the enclosure, and the pressure inside the can is released. Open to the outside.
以下、本考案を、図示の一実施例を参照しなが
ら説明する。
Hereinafter, the present invention will be explained with reference to an illustrated embodiment.
第１図に示す電解液電池は、内部に正極と負極
（ともに図示せず）を絶縁配置し、電解液を注入
したステンレス製の電極缶１に、同じくステンレ
ス製の封口体２が気密的に嵌合して溶接され、内
径を缶内へ向けて屈曲した該封口体２の筒状縁２
ａに絶縁体４を介してピン状の電極端子３が封着
されている。絶縁体４は、適宜弾性を有する樹脂
またはゴムからなり、絶縁体４の外周面と封口体
２の筒状縁２ａ、および絶縁体４の内周面と電極
端子３の軸部外周面の接触面にはエポキシ樹脂ま
たはフラン樹脂からなる接着剤７，８を塗布して
組付け後に熱硬化させて気密接着してなり、絶縁
体４と封口体２の筒状縁２ａの接着幅W1は、電
極端子３と絶縁体４の接着幅W2よりも小さく設
定されている。 The electrolyte battery shown in Fig. 1 has a positive electrode and a negative electrode (both not shown) arranged insulated inside, and a stainless steel electrode can 1 filled with electrolyte is sealed with a sealing body 2 also made of stainless steel. A cylindrical edge 2 of the sealing body 2 that is fitted and welded and bent with its inner diameter facing into the can.
A pin-shaped electrode terminal 3 is sealed to a via an insulator 4. The insulator 4 is made of resin or rubber with appropriate elasticity, and the outer peripheral surface of the insulator 4 and the cylindrical edge 2a of the sealing body 2 are in contact with each other, and the inner peripheral surface of the insulator 4 and the outer peripheral surface of the shaft portion of the electrode terminal 3 are in contact with each other. Adhesives 7 and 8 made of epoxy resin or furan resin are applied to the surfaces, and after assembly, the adhesives 7 and 8 are heat-cured to form an airtight bond . , is set smaller than the bonding width W2 between the electrode terminal 3 and the insulator 4.
上記構成の電解液電池は、第２図に示すよう
に、電極缶１内の圧力Ｐが上昇すると、絶縁体４
の内端面およびその内周の電極端子３の内端面が
この圧力Ｐを受けることによつて、弾性を有する
絶縁体４は、その内径側４ａの変位量が大きくな
るように弾性変形し、上昇圧力を吸収する。しか
るに、圧力Ｐがさらに上昇を続けると、絶縁体４
と封口体２の筒状縁２ａの接着幅W1は、電極端
子３と絶縁体４の接着幅W2よりも小さいので、
絶縁体４の外周面と筒状縁２ａの接着面のうち缶
内側の端部に前記弾性変形の応力による引つ張り
荷重Ｆの増大によつて、やがて絶縁体４と封口体
２の筒状縁２ａの接着面の缶内側の端部から剥離
Ａが生じ、絶縁体４は電極端子３とともに封口体
２内径の筒状縁２ａから抜け出し、缶内圧力Ｐを
外部へ開放する。 As shown in FIG. 2, in the electrolyte battery having the above structure, when the pressure P inside the electrode can 1 increases
When the inner end surface of the electrode terminal 3 and the inner end surface of the electrode terminal 3 on the inner periphery thereof receive this pressure P, the elastic insulator 4 is elastically deformed so that the amount of displacement on the inner diameter side 4a becomes larger, and rises. Absorb pressure. However, if the pressure P continues to rise further, the insulator 4
Since the adhesive width W 1 of the cylindrical edge 2a of the sealing body 2 is smaller than the adhesive width W 2 of the electrode terminal 3 and the insulator 4 ,
Due to the increase in the tensile load F due to the stress of the elastic deformation on the inner end of the can of the bonding surface between the outer circumferential surface of the insulator 4 and the cylindrical edge 2a, the cylindrical shape of the insulator 4 and the sealing body 2 will eventually change. Peeling A occurs from the inner end of the can on the adhesive surface of the edge 2a, and the insulator 4, together with the electrode terminal 3, slips out of the cylindrical edge 2a of the inner diameter of the sealing body 2, releasing the can internal pressure P to the outside.
なお、缶内圧力Ｐがどの程度まで上昇したとき
に絶縁体４および電極端子３が抜け出すかは、絶
絶縁体４と筒状縁２ａの接着幅1の変更（但し、
W1＜W2）によつて適宜に調整可能である。 Note that the extent to which the can internal pressure P rises to cause the insulator 4 and the electrode terminal 3 to come off depends on changing the adhesive width 1 between the insulator 4 and the cylindrical edge 2a (however,
W 1 <W 2 ).
以上、本考案によると、封口体、絶縁体および
電極端子の三者間に塗布した接着剤によつて、電
極缶内の電解液に対する優れた耐漏液性を維持す
ることができるとともに、電極缶内の圧力上昇を
絶縁体の弾性変形によつて吸収することができ、
この圧力が異常に上昇したような場合は、絶縁体
の弾性変形に伴う引つ張り荷重によつて、接着幅
の小さい封口体と絶縁体の接着部を剥離させて缶
内圧力を開放するので、電池全体の破裂を防止し
て安全性を向上することができるものである。
As described above, according to the present invention, the adhesive applied between the sealing body, the insulator, and the electrode terminal makes it possible to maintain excellent leakage resistance against the electrolyte in the electrode can. The increase in internal pressure can be absorbed by the elastic deformation of the insulator,
If this pressure rises abnormally, the tensile load caused by the elastic deformation of the insulator will cause the adhesive part between the sealing body and the insulator, which has a small adhesive width, to separate and relieve the pressure inside the can. , it is possible to prevent the entire battery from exploding and improve safety.
第１図は本考案に係る電解液電池の一実施例を
示す概略的な断面図、第２図は同じく作用説明
図、第３図は従来例としての電解液電池を示す断
面図、第４図および第５図は、他の従来例を示す
部分断面図である。
１……電極缶、２……封口体、２ａ……筒状
縁、３……電極端子、４……絶縁体、７，８……
接着剤。
FIG. 1 is a schematic cross-sectional view showing one embodiment of an electrolyte battery according to the present invention, FIG. FIG. 5 and FIG. 5 are partial sectional views showing other conventional examples. 1... Electrode can, 2... Sealing body, 2a... Cylindrical edge, 3... Electrode terminal, 4... Insulator, 7, 8...
glue.
Claims (1)
有する樹脂またはゴム製の絶縁体を介して電極端
子を気密挿入するとともに、電極端子の外周面と
絶縁体の内周面、および絶縁体の外周面と封口体
の筒状縁内周面をエポキシ樹脂またはフラン樹脂
からなる接着剤で気密接着し、電極端子と絶縁体
の接着幅よりも絶縁体と筒状縁の接着幅を小さく
してなることを特徴とする電解液電池。 The electrode terminal is hermetically inserted into the cylindrical edge formed inside the sealing inner diameter of the electrode can via an elastic resin or rubber insulator, and the outer peripheral surface of the electrode terminal, the inner peripheral surface of the insulator, and the insulator are The outer circumferential surface of the sealing body and the inner circumferential surface of the cylindrical edge of the sealing body are airtightly bonded with an adhesive made of epoxy resin or furan resin, and the bonding width between the insulator and the cylindrical edge is made smaller than the bonding width between the electrode terminal and the insulator. An electrolyte battery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985134439U JPH0412598Y2 (en) | 1985-09-04 | 1985-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985134439U JPH0412598Y2 (en) | 1985-09-04 | 1985-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6243462U JPS6243462U (en) | 1987-03-16 |
| JPH0412598Y2 true JPH0412598Y2 (en) | 1992-03-26 |
Family
ID=31035686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985134439U Expired JPH0412598Y2 (en) | 1985-09-04 | 1985-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412598Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005183359A (en) * | 2003-11-28 | 2005-07-07 | Matsushita Electric Ind Co Ltd | Square battery and its manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143660A (en) * | 1980-03-14 | 1981-11-09 | Union Carbide Corp | High voltage safety ventilator for dry cell |
-
1985
- 1985-09-04 JP JP1985134439U patent/JPH0412598Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56143660A (en) * | 1980-03-14 | 1981-11-09 | Union Carbide Corp | High voltage safety ventilator for dry cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243462U (en) | 1987-03-16 |
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