JPS63221553A - Square sealed battery - Google Patents
Square sealed batteryInfo
- Publication number
- JPS63221553A JPS63221553A JP62051994A JP5199487A JPS63221553A JP S63221553 A JPS63221553 A JP S63221553A JP 62051994 A JP62051994 A JP 62051994A JP 5199487 A JP5199487 A JP 5199487A JP S63221553 A JPS63221553 A JP S63221553A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- opening
- case
- corner radius
- rcb
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000002788 crimping Methods 0.000 claims abstract description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 101000575685 Homo sapiens Synembryn-B Proteins 0.000 description 1
- 102100026014 Synembryn-B Human genes 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding 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
- 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
- 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
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は封口部材を改良した角形密閉電池に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a prismatic sealed battery with an improved sealing member.
角形密閉電池、特に小形携帯用の角形密閉電池は、従来
発電要素を内填した有底角形金属ケース開口部に、蓋板
を内装した絶縁ガスケットを圧入した後、ケース開口端
を内方に折曲して封口していた。Square sealed batteries, especially small portable square sealed batteries, are conventionally manufactured by press-fitting an insulating gasket with a cover plate into the opening of a bottomed square metal case containing a power generation element, and then folding the opening end of the case inward. It was bent and sealed.
このような場合、開口部の横方向の封口力はガスケット
の反発弾性力のみであるため、高い密閉性が得られない
という問題があった。In such a case, the sealing force in the lateral direction of the opening is only the repulsion elastic force of the gasket, so there is a problem that high sealing performance cannot be obtained.
そこで密閉性を高めるため、ケース開口部を予め外方に
拡げておき、かしめる際開口端を内方に折曲するととも
に、予め拡げられた開口部を胴部寸法まで絞る方法が採
られている。しかし、この方法ではケース開口部を絞る
際、コーナ一部分に歪みが発生し易いという問題があっ
た。Therefore, in order to improve the sealing performance, a method was adopted in which the case opening was expanded outward in advance, the opening end was bent inward when caulking, and the pre-expanded opening was narrowed down to the body dimensions. There is. However, this method has a problem in that distortion tends to occur in a corner portion when the case opening is narrowed.
そこで絞シ工程では、第５図に示すように、呼び込みテ
ーパーＤ１のついた絞シダイＤに、下方から電池を押し
上げて絞る方式もあったが、金属ケースのコーナ一部分
において、そのまま電池を上方へ押し出すと、絞る必要
のない胴部アールまで変形され、内部の発電要素に影響
を与えるため、再び絞シの途中で上方から矢印の方向に
パンチＰで押し下げて電池を下方から取り出さねばなら
ず、機構が禎雑であった。Therefore, in the squeezing process, as shown in Figure 5, there was a method of squeezing the battery by pushing it up from below into a squeezing die D with a draw-in taper D1. When pushed out, the body radius, which does not need to be squeezed, is deformed and this affects the internal power generating element, so in the middle of squeezing, the battery must be pushed down again from above in the direction of the arrow to remove the battery from below. The mechanism was sloppy.
本発明は上記欠点を除去し、角形電池の密閉性を良くし
、生産性を向上させることを目的とするものである。The object of the present invention is to eliminate the above-mentioned drawbacks, improve the sealing properties of prismatic batteries, and improve productivity.
本発明は、発電要素を内填した角形金属ケースの開口部
をかしめて密閉する角形電池において、かしめ後の金属
ケース開口部のコーナー・アールＲｃｓと同ケースの胴
部コーナー・アールＲｃｂとの関係が、
Ｒｃｓ≦ＲＣｂ
であることを特徴としている角形密閉電池である。The present invention relates to a prismatic battery in which the opening of a prismatic metal case containing a power generating element is caulked and sealed, and the relationship between the corner radius Rcs of the opening of the metal casing after crimping and the corner radius Rcb of the body of the case. This is a prismatic sealed battery characterized by Rcs≦RCb.
上記のように、本発明はかしめ封口後の金属ケース開口
部のコーナー・アール几Ｃ５と？ＪｍＯコーナー・アー
ルＲＣｂとの関係を、
ＲＩＣ８≦ Ｒｃｂ
とすることで、絞りダイに電池を下方から押し上げてケ
ース開口部を絞シ、連続してダイ上方に押し出すことが
できるため、連続工程となシ機械の機構も単純となる。As mentioned above, the present invention is applicable to the corner radius C5 of the metal case opening after caulking. By setting the relationship between JmO corner radius and RCb as RIC8≦Rcb, it is possible to push the battery up from below into the drawing die, squeeze the case opening, and continuously push it out above the die, making it a continuous process. The mechanism of the machine is also simple.
かしめ方式によυ生産性がよシ向上し、製造コストを低
減できる。The caulking method can greatly improve υ productivity and reduce manufacturing costs.
さらに、密閉性に関係する熱及び部品の寸法精度の影響
がないので、密閉性の良い角形電池が得られる。Furthermore, since there is no influence of heat and dimensional accuracy of parts related to hermeticity, a prismatic battery with good hermeticity can be obtained.
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１図は金属製平板を打抜いて得られる蓋板３を示す平
面図である。コーナ一部のアールＲｐはＦＬｐ≧０とな
るように形成する。FIG. 1 is a plan view showing a lid plate 3 obtained by punching a flat metal plate. The radius Rp of a part of the corner is formed so that FLp≧0.
第２図は、金属製平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た金属ケース１を示す平面図及び断
面図である。金属ケース１はかしめ封口した際、かしめ
力を高め密閉性を向上させるため、断面図のように開口
部は予め外方に拡げられている。FIG. 2 is a plan view and a cross-sectional view showing a metal case 1 in which a flat metal plate is formed into a rectangular tube shape with a bottom by drawing or welding. When the metal case 1 is caulked and sealed, the opening is expanded outward in advance as shown in the cross-sectional view in order to increase the caulking force and improve the sealing performance.
第３図は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２を示す平面図及び断面図である。平面
図において、絶縁ガスケット２の立上シ部内面のコーナ
ー・アールａ／ｇは蓋板のコーナー・アール几ｐ とほ
ぼ同一とし、外面のコーナー・アールＲｇは、かしめ後
の金属ケースの開口部のコーナー・アールＢｃｓとほぼ
同一となるように形成する。FIG. 3 is a plan view and a cross-sectional view showing an insulating gasket 2 having an L-shaped cross section obtained by injection molding a synthetic resin. In the plan view, the corner radius a/g of the inner surface of the rising part of the insulating gasket 2 is almost the same as the corner radius p of the cover plate, and the corner radius Rg of the outer surface is the same as the opening of the metal case after caulking. The corner radius Bcs is formed to be approximately the same as the corner radius Bcs.
第４図において、上記のように形成した蓋板３をガスケ
ット２内に載置した後、ケース１の開口部に挿入する。In FIG. 4, the lid plate 3 formed as described above is placed in the gasket 2 and then inserted into the opening of the case 1.
そしてクリンプ屋によυケース開口端を折り曲げて、ガ
スケット３を介して蓋板２を固定する。Then, the opening end of the υ case is bent by a crimp shop, and the cover plate 2 is fixed via the gasket 3.
次に第５図に示すように、呼び込みテーパーＤＩのつい
た絞りダイＤ内に電池を下方から矢印のように押し上げ
て、ケース開口部を絞り、連続してダイＤ上方に押し出
して、第６図に示すような角形密閉電池を完成させる。Next, as shown in FIG. 5, the battery is pushed up from below as shown by the arrow into the drawing die D with the draw taper DI, the case opening is narrowed, and the battery is continuously pushed out above the die D. Complete a square sealed battery as shown in the figure.
また、ダイＤを通してからクリンプ型で開口端を折り曲
げてもよい。Alternatively, after passing through the die D, the open end may be bent using a crimp die.
このようにして絞られた金属ケース１の開口部のコーナ
ー・アールＲｃｓと同ケースの胴部のコーナー・アール
Ｉｔｃｂは、第７図に示すように、 Ｒｃｓ≦ＲＣｂと
していることで、胴部コーナーが絞られる危険がなく、
内部の発電要素に悪影響を与えないため、信頼性の高い
電池が得られる。The corner radius Rcs of the opening of the metal case 1 narrowed in this way and the corner radius Itcb of the body of the case are set to Rcs≦RCb, as shown in FIG. There is no risk of being squeezed,
Since it does not adversely affect the internal power generation elements, a highly reliable battery can be obtained.
本発明によれば、かしめ封口後の金属クース開ｃｌのコ
ーナー・アールＲ，Ｃ５と胴部のコーナー・アールＲｃ
ｂとの関係を、
几ＣＳ ≦ ａｃｂ
とすることで、絞シダイに電池を下方から押し上げて金
属ケース開口部を絞シ、連続してグイ上方に押し出すこ
とができるため、連続工程となシ、機械の機構も単純と
なる。かしめ方式によシ生産性が向上し、製造コストを
低減できる。According to the present invention, the corner radius R, C5 of the metal coupe opening cl after caulking and the corner radius Rc of the body.
By setting the relationship between CS ≦ acb, it is possible to push the battery up from below to squeeze the opening of the metal case and continuously push it upward, making it a continuous process. The mechanism of the machine is also simple. The caulking method improves productivity and reduces manufacturing costs.
さらに、本発明では、密閉性に関係する熱及び部品の寸
法精度の影響が少ないので、密閉性の優れた角形電池が
得られる。Furthermore, in the present invention, since the effects of heat and component dimensional accuracy related to hermeticity are small, a prismatic battery with excellent hermeticity can be obtained.
第１図は本発明の角形密閉電池の一実施例に用いられる
蓋板の平面図％第２図は同実施例に用いられる金属ケー
ス開口部の平面図及び断面図、第、３図は同実施例に用
いられる絶縁ガスケットの平面図及び断面図、第４図は
同実施例電池の開口部のかしめ前の断面図、第５図は絞
りグイと絞シ工程の電池開口部の断面図、第６図は同実
施例電池の開口部かしめ後の断面図、第７図は同実施例
の金属ケースかしめ後のコーナー・アールを示す説明図
である。
１・・・金属ケース
Ｒｃｓ・・・金属ケース開口部のコーナー・アール几ｃ
ｂ・・・金属ケース胴部のコーナー・アール２ ガスケ
ット
Ｒｇ、Ｒｉ ・・カスケラトコーナー・アール３・・・
蓋板FIG. 1 is a plan view of a lid plate used in an embodiment of the prismatic sealed battery of the present invention. FIG. A plan view and a cross-sectional view of the insulating gasket used in the example, FIG. 4 is a cross-sectional view of the opening of the battery of the same example before caulking, and FIG. FIG. 6 is a cross-sectional view of the battery of the same example after the opening is caulked, and FIG. 7 is an explanatory view showing the corner radius of the metal case of the same example after caulking. 1...Metal case Rcs...Corner radius of metal case opening c
b... Corner radius 2 of metal case body Gasket Rg, Ri... Gasket corner radius 3...
lid plate
Claims (1)
ケットを介して封口蓋板を挿入した後、前記金属ケース
開口部をかしめて密閉してなる角形電池において、かし
め後の金属ケース開口部のコーナー・アールＲｃｓと金
属ケース胴部のコーナー・アールＲｃｂとの関係が、 Ｒｃｓ≦Ｒｃｂ であることを特徴とする角形密閉電池。[Claims] In a prismatic battery in which a sealing cover plate is inserted into an opening of a prismatic metal case containing a power generation element via an insulating gasket, and the opening of the metal casing is caulked to seal the prismatic battery, after crimping. A square sealed battery characterized in that the relationship between the corner radius Rcs of the metal case opening and the corner radius Rcb of the metal case body is Rcs≦Rcb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62051994A JP2609100B2 (en) | 1987-03-09 | 1987-03-09 | Square sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62051994A JP2609100B2 (en) | 1987-03-09 | 1987-03-09 | Square sealed battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63221553A true JPS63221553A (en) | 1988-09-14 |
| JP2609100B2 JP2609100B2 (en) | 1997-05-14 |
Family
ID=12902408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62051994A Expired - Fee Related JP2609100B2 (en) | 1987-03-09 | 1987-03-09 | Square sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2609100B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002017412A3 (en) * | 2000-08-22 | 2002-10-10 | Matsushita Electric Ind Co Ltd | Battery and method for manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169659U (en) * | 1982-05-10 | 1983-11-12 | 富士電気化学株式会社 | prismatic alkaline battery |
-
1987
- 1987-03-09 JP JP62051994A patent/JP2609100B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169659U (en) * | 1982-05-10 | 1983-11-12 | 富士電気化学株式会社 | prismatic alkaline battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002017412A3 (en) * | 2000-08-22 | 2002-10-10 | Matsushita Electric Ind Co Ltd | Battery and method for manufacturing the same |
| US7455930B2 (en) | 2000-08-22 | 2008-11-25 | Matsushita Electric Industrial Co., Ltd. | Battery and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2609100B2 (en) | 1997-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |