JPS63244549A - Manufacture of rectangular enclosed type battery - Google Patents
Manufacture of rectangular enclosed type batteryInfo
- Publication number
- JPS63244549A JPS63244549A JP62076153A JP7615387A JPS63244549A JP S63244549 A JPS63244549 A JP S63244549A JP 62076153 A JP62076153 A JP 62076153A JP 7615387 A JP7615387 A JP 7615387A JP S63244549 A JPS63244549 A JP S63244549A
- Authority
- JP
- Japan
- Prior art keywords
- opening
- rectangular
- metal case
- battery
- edges
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/167—Lids or covers characterised by the methods of assembling casings with lids by crimping
-
- 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
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は封口方法を改良した角形密閉電池の製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a prismatic sealed battery using an improved sealing method.
従来角形密閉電池、特に小形携帯用の角形密閉電池は、
実開昭６１−３１９２５５号公報に見られるように、発
電要素を内填した金属ケース開口部に底板をレーザ溶接
によって４辺を溶融密閉していた。Conventional prismatic sealed batteries, especially small portable prismatic sealed batteries,
As seen in Japanese Utility Model Application Publication No. 61-319255, a bottom plate is melt-sealed on four sides by laser welding to an opening of a metal case in which a power generating element is housed.
しかし、このような製造方法の場合、レーザ溶接法は精
密溶接であるため、溶接部の寸法精度を高く安定させな
いと溶接不良が起こシ密閉性に大きく影響を及ぼし、そ
の上、封口スピードの点でもかしめ封口法に比べて非常
に遅いという問題もあった。However, in the case of such manufacturing methods, since laser welding is precision welding, unless the dimensional accuracy of the welded part is high and stable, welding defects will occur, which will greatly affect the sealing performance, and in addition, the sealing speed will be affected. However, it also had the problem of being extremely slow compared to the caulking method.
そこで、本発明者らは金属ケース開口部を成形型で絞る
封口法による製造方法を提案した。この方法によれば、
部品の精度、合成樹脂部品の熱による影響を全く考慮す
る必要がなく、生産性も極めて良いという利点がある。Therefore, the present inventors proposed a manufacturing method using a sealing method in which the opening of the metal case is squeezed with a mold. According to this method,
There is no need to consider the accuracy of parts or the effects of heat on synthetic resin parts, and there are advantages in that productivity is extremely high.
反面、この方法の場合密閉性を高めるために、ナイロン
、ポリプロピレンなどの比較的硬い合成樹脂よりなるガ
スケットを肉厚の２０〜６０１程度圧縮しているので、
ガスケットの剛性に°よるスプリングバックが生じ、角
形の金属ケース開口部が外方に楕円形に拡がる傾向があ
シ、密閉性が低下する問題があった。On the other hand, in this method, a gasket made of relatively hard synthetic resin such as nylon or polypropylene is compressed to a thickness of 20 to 60 mm in order to improve sealing.
Springback occurs due to the rigidity of the gasket, and the opening of the rectangular metal case tends to expand outward into an elliptical shape, resulting in a problem of reduced sealing performance.
本発明は上記欠点を除去し、角形電池の密閉性がよく生
産性を向上させることを特徴とする特許である。The present invention is a patent that eliminates the above-mentioned drawbacks and improves the productivity of prismatic batteries with good sealing properties.
本発明は発電要素を内填した有底角形金属ケース開口端
を内方に折曲して密閉する角形電池の製造方法において
、ケース開口端先端をクリンプ型で内方へかしめるとと
もに、開口部の角形辺４辺のうち、少なくとも２辺を内
方に湾曲させることを特徴としている角形密閉電池の製
造方法である。The present invention relates to a method for manufacturing a prismatic battery in which the open end of a bottomed prismatic metal case containing a power generating element is bent inward to seal it. This method of manufacturing a prismatic sealed battery is characterized in that at least two of the four prismatic sides are curved inward.
上記のように、本発明は金属ケース開口部の角形辺４辺
のうち少なくとも２辺を内方に湾曲させることで、絞シ
後に蓋板と金属ケースとの間で圧縮される絶縁ガスケッ
トのスプリングバックによるケース開口部の外方への膨
出を防ぐことができるので、密閉性が高まフ、さらにか
しめ方式による製造方法とすることで、生産性を向上さ
せ、製造コストを低減できる。As described above, the present invention provides a spring for the insulating gasket that is compressed between the cover plate and the metal case after being squeezed by curving inward at least two of the four square sides of the opening of the metal case. Since it is possible to prevent the case opening from bulging outward due to the back, the sealing performance is improved, and by using the manufacturing method using the caulking method, productivity can be improved and manufacturing costs can be reduced.
以下、図面に従い本発明の一実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第２図において、１は金属板を絞シ加工または溶接法に
よって有底角筒状に形成し、開口部４が外方に拡げられ
た金属ケースを示す。２はナイロン、ポリプロピレン等
の合成樹脂を射出成形して得られる断面り字形の絶縁ガ
スケットであシ、このガスケット２内に金属製平板を打
抜いて得られる蓋板３を載置した後、発電要素を内填し
た金属ケース１の開口部４に挿入する。そしてクリンプ
凰によυケース開口端を内方に折曲げて、ガスケット２
を介して蓋板３を固定する。In FIG. 2, reference numeral 1 denotes a metal case in which a metal plate is formed into a rectangular tube shape with a bottom by drawing or welding, and an opening 4 is expanded outward. Reference numeral 2 is an insulating gasket with a cross-sectional shape obtained by injection molding of synthetic resin such as nylon or polypropylene, and after placing a cover plate 3 obtained by punching a flat metal plate inside this gasket 2, power generation is performed. It is inserted into the opening 4 of the metal case 1 containing the element. Then, bend the opening end of the υ case inward using the crimp, and
The cover plate 3 is fixed through the.
次に第１図に示すように、絞シ孔の開口形状が凹レンズ
状で、角筒型の対向２辺に内側に湾曲部Ｄ２を有し、か
つ呼び込みテーパーＤ１のついた成形型りに電池を下方
より押上げ、金属ケース開口部４を絞シ孔で絞シ、引き
抜いて第３図に示すような角形密閉電池を完成させる。Next, as shown in Fig. 1, the aperture hole has a concave lens shape, has a rectangular cylinder shape, has curved parts D2 on the inside on two opposing sides, and has a draw-in taper D1. is pushed up from below, the opening 4 of the metal case is squeezed using a squeeze hole, and the battery is pulled out to complete a rectangular sealed battery as shown in FIG.
このようにして絞られたケース開口部４の角形辺５部分
を内方に湾曲させることで、角形金属ケース開口部４が
外方に楕円形に拡がる危険がなくな９、密閉性の優れた
電池が得られる。By curving the rectangular sides 5 of the case opening 4 narrowed in this way, there is no danger of the rectangular metal case opening 4 expanding outward into an elliptical shape9, resulting in excellent sealing performance. A battery is obtained.
本発明によれば、角型金属ケース開口部の角形辺４辺の
うち、少なくとも２辺を内方に湾曲させることで、かし
め後に蓋板と金属ケースとの間で圧縮され、絶縁ガスケ
ットのスプリングバックによるケース開口部の外方への
膨出を防ぐことができる。このため密閉性が高まシ、さ
らにかしめ方式による製造方法とすることで、生産性を
向上させ、製造コストを低減できる。According to the present invention, by curving at least two of the four square sides of the square metal case opening inward, the insulating gasket is compressed between the lid plate and the metal case after caulking, and the insulating gasket springs. This prevents the case opening from expanding outward due to the bag. Therefore, the airtightness is improved, and by using a manufacturing method using the caulking method, productivity can be improved and manufacturing costs can be reduced.
第１図は成形型の上面図及び断面図、第２図は本発明の
角形密閉電池の一実施例における開口端かしめ前の要部
断面図、第３図は同実施例の開口部のかしめ後の電池要
部の上面図及び断面図である。
１・・・金属ケース ４・・・ケース開口部５・・
・角形辺 Ｄ・・・成形塵Ｄ１・・・呼び込み
テーパー Ｄ２・・・湾曲部第１図 第２
図Fig. 1 is a top view and a sectional view of the mold, Fig. 2 is a sectional view of the main part of an embodiment of the prismatic sealed battery of the present invention before the opening end is crimped, and Fig. 3 is a sectional view of the opening of the same embodiment. FIG. 7 is a top view and a sectional view of the main parts of the battery afterward. 1... Metal case 4... Case opening 5...
・Square side D... Molding dust D1... Call-in taper D2... Curved part Fig. 1 Fig. 2
figure
Claims (1)
スケットを介して封口蓋板を挿入した後、ケース開口端
を内方にかしめて封口する角形密閉電池の製造方法にお
いて、ケース開口端の先端を内方に折曲してかしめると
ともに、開口部の角形辺４辺のうち、少なくとも２辺を
内方に湾曲させることを特徴とする角形密閉電池の製造
方法。In a manufacturing method for a rectangular sealed battery, in which a sealing lid plate is inserted into the opening of a bottomed rectangular metal case containing a power generation element via an insulating gasket, and the opening end of the case is caulked inward to seal the opening. A method for manufacturing a prismatic sealed battery, comprising: bending the tip inward and caulking the battery, and curving at least two of the four prismatic sides of the opening inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076153A JPS63244549A (en) | 1987-03-31 | 1987-03-31 | Manufacture of rectangular enclosed type battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62076153A JPS63244549A (en) | 1987-03-31 | 1987-03-31 | Manufacture of rectangular enclosed type battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63244549A true JPS63244549A (en) | 1988-10-12 |
Family
ID=13597081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62076153A Pending JPS63244549A (en) | 1987-03-31 | 1987-03-31 | Manufacture of rectangular enclosed type battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63244549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015109170A (en) * | 2013-12-04 | 2015-06-11 | 三菱自動車工業株式会社 | Battery |
-
1987
- 1987-03-31 JP JP62076153A patent/JPS63244549A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015109170A (en) * | 2013-12-04 | 2015-06-11 | 三菱自動車工業株式会社 | Battery |
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