JP2609100B2 - Square sealed battery - Google Patents
Square sealed batteryInfo
- Publication number
- JP2609100B2 JP2609100B2 JP62051994A JP5199487A JP2609100B2 JP 2609100 B2 JP2609100 B2 JP 2609100B2 JP 62051994 A JP62051994 A JP 62051994A JP 5199487 A JP5199487 A JP 5199487A JP 2609100 B2 JP2609100 B2 JP 2609100B2
- Authority
- JP
- Japan
- Prior art keywords
- metal case
- opening
- corner radius
- rcb
- battery
- 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 - Fee Related
Links
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
-
- 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
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery 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
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。Description: TECHNICAL FIELD The present invention relates to a rectangular sealed battery having an improved sealing member.
〔従来の技術〕 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ツトを圧入した後、ケース開口
端を内方に折曲して封口していた。[Prior art] A rectangular sealed battery, particularly a small portable rectangular sealed battery, is formed by inserting an insulating gasket with a cover plate into a bottomed rectangular metal case opening containing a conventional power generating element, and then pressing the open end of the case. Was bent inward and sealed.
このような場合、開口部の横方向の封口力はガスケツ
トの反発弾性力のみであるため、高い密閉性が得られな
いという問題があつた。In such a case, since the lateral sealing force of the opening is only the repulsive elastic force of the gasket, there is a problem that a high sealing property 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、コーナー部分に歪みが発生し易いという問題があ
つた。Therefore, in order to enhance the sealing performance, a method has been adopted in which the case opening is expanded outward in advance, and when swaging, the opening end is bent inward and the previously expanded opening is squeezed to the body dimension. I have. However, in this method, when the case opening is narrowed, there is a problem that distortion is easily generated at a corner portion.
そこで絞り工程では、第５図に示すように、呼び込み
テーパーD1のついた絞りダイＤに、下方から電池を押し
上げて絞る方式もあつたが、金属ケースのコーナー部分
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、再び絞り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、機構が複雑であつた。Therefore, in the drawing process, as shown in FIG. 5, a method was used in which the battery was pushed up from below on a drawing die D having an introductory taper D1, and the battery was pushed upward at the corner of the metal case. In order to affect the internal power generation element, it is necessary to remove the battery from below by pressing down with a punch P from above in the direction of the arrow again in the middle of the throttle, It was complicated.
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。An object of the present invention is to eliminate the above-mentioned drawbacks, improve the sealing performance of a prismatic battery, and improve the productivity.
本発明は、発電要素を内填した予め外方へ拡げられた
角形金属ケース開口部に、絶縁ガス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、 かしめ後の前記金属ケース開口部のコーナー・アール
Rcsと発電要素が内填されている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である。According to the present invention, a rectangular metal case opening is inserted into a rectangular metal case opening which has been expanded outward in advance and a sealing lid plate is inserted through an insulating gasket, and then the metal case opening is caulked and sealed. In a battery, a corner radius of the metal case opening after caulking
A rectangular sealed battery characterized in that the relationship between Rcs and the corner radius Rcb of the metal case body in which the power generating element is contained is Rcs <Rcb.
上記のように、本発明はかしめ封口後の開口部のコー
ナー・アールRcsと発電要素が内填されている金属ケー
ス胴部のコーナー・アールRcbとの関係を、 Rcs＜Rcb とすることで、発電要素が内填されている金属ケース胴
部のコーナー・アールRcbが金属ケース開口部のコーナ
ー・アールRcsよりも大きいため、絞りダイを通過し、
ダイ上方へ押し出されても金属ケース胴部のコーナー・
アールRcbは絞られる危険性がなく、内部の発電要素に
悪影響を与えない。As described above, according to the present invention, the relationship between the corner radius Rcs of the opening after swaging and the corner radius Rcb of the metal case body in which the power generating element is embedded is represented by Rcs <Rcb, Since the corner radius Rcb of the metal case body in which the power generation element is included is larger than the corner radius Rcs of the metal case opening, it passes through the drawing die,
Even if it is extruded above the die,
Earl Rcb has no risk of being throttled and does not adversely affect the internal power generation components.
また、絞りダイに電池を下方から押し上げて予め外方
に拡げられたケース開口部を絞り、連続してダイ上方に
押し出すことができるため、連続工程となり機械の機構
も単純となる。かしめ方式により生産性がより向上し、
製造コストを低減できる。Further, since the battery is pushed up from below to the drawing die, the case opening previously expanded outward can be drawn and continuously pushed out above the die, so that a continuous process is performed, and the mechanism of the machine is simplified. Productivity is further improved by the caulking method,
Manufacturing costs can be reduced.
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。Further, since there is no influence of heat related to sealing and dimensional accuracy of components, a prismatic battery with good sealing 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。コーナー部のアールRpはRp≧０となるよ
うに形成する。FIG. 1 is a plan view showing a cover plate 3 obtained by punching a metal flat plate. The radius Rp at the corner is formed so that Rp ≧ 0.
第２図は、金属製平板を絞り加工または溶接法によつ
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 bottomed rectangular cylindrical shape by drawing or welding. When the metal case 1 is closed by caulking, the opening is previously widened outward 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Ｌ字形
の絶縁ガスケツト２を示す平面図及び断面図である。平
面図において、絶縁ガスケツト２の立上り部内面のコー
ナー・アールＲ′ｇは蓋板のコーナー・アールRp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Rcsとほぼ同一と
なるように形成する。FIG. 3 is a plan view and a sectional view showing an insulating gasket 2 having an L-shaped section obtained by injection molding a synthetic resin. In the plan view, the corner radius R'g of the inner surface of the rising portion of the insulating gasket 2 is substantially the same as the corner radius Rp of the cover plate, and the corner radius Rg of the outer surface is the corner radius Rg of the opening of the metal case after caulking. It is formed to be almost the same as Rcs.
第４図において、上記のように形成した蓋板３をガス
ケツト２内に載置した後、ケース１の開口部に挿入す
る。そしてクリンプ型によりケース開口端を折り曲げ
て、ガスケツト３を介して蓋板２を固定する。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. Then, the case opening end is bent by a crimp type, 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D1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、予め外方に拡げられた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。また、ダイＤを通してクリンプ型
で開口端を折り曲げてもよい。Next, as shown in FIG. 5, the battery is pushed up from below into an aperture die D having an inlet taper D1 as shown by an arrow, and the case opening which has been expanded outward in advance is apertured. Extrude upward to complete a rectangular sealed battery as shown in FIG. Further, the opening end may be bent by a crimp type through the die D.
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と発電要素が内填さている金属ケース
胴部のコーナー・アールRcbは、第７図に示すように、R
cs＜Rcbとしていることで、絞りダイを通過し、ダイ上
方へ押し出されても金属ケース胴部のコーナー・アール
Rcbは絞られる危険性がなく、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。As shown in FIG. 7, the corner radius Rcs of the opening of the metal case 1 and the corner radius Rcb of the body of the metal case in which the power generating element is inserted are R, as shown in FIG.
By setting cs <Rcb, the corner radius of the body of the metal case can be achieved even if the material passes through the drawing die and is pushed upward.
Rcb has no danger of being squeezed and does not adversely affect the internal power generation elements, so that a highly reliable battery can be obtained.
本発明によれば、かしめ封口後の金属ケース開口部の
コーナー・アールRcsと発電要素が内填されている金属
ケース胴部のコーナー・アールRcbとの関係を、 Rcs＜Rcb とすることで、発電要素が内填されている金属ケース胴
部のコーナー・アールRcbが金属ケース開口部のコーナ
ー・アールRcsよりも大きいため、絞りダイを通過し、
ダイ上方へ押し出されても金属ケース胴部のコーナー・
アールRcbは絞られる危険性がなく、内部の発電要素に
悪影響を与えない。According to the present invention, the relationship between the corner radius Rcs of the metal case opening after swaging and the corner radius Rcb of the metal case body in which the power generating element is embedded is represented by Rcs <Rcb, Since the corner radius Rcb of the metal case body in which the power generation element is included is larger than the corner radius Rcs of the metal case opening, it passes through the drawing die,
Even if it is extruded above the die,
Earl Rcb has no risk of being throttled and does not adversely affect the internal power generation components.
また、絞りダイに電池を下方から押し上げて予め外方
に拡げられたケース開口部を絞り、連続してダイ上方に
押し出すことができるため、連続工程となり機械の機構
も単純となる。かしめ方式により生産性がより向上し、
製造コストを低減できる。Further, since the battery is pushed up from below to the drawing die, the case opening previously expanded outward can be drawn and continuously pushed out above the die, so that a continuous process is performed, and the mechanism of the machine is simplified. Productivity is further improved by the caulking method,
Manufacturing costs can be reduced.
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。Further, in the present invention, since the influence of heat related to the sealing property and the dimensional accuracy of the components is small, a prismatic battery excellent in the sealing property 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
られる絶縁ガスケツ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
ダイと絞り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 Rcb……金属ケース胴部のコーナー・アール ２……ガスケツト Rg,R′ｇ……ガスケツトコーナー・アール ３……蓋板 Rp……蓋板のコーナー・アールFIG. 1 is a plan view of a cover plate used in one embodiment of a rectangular sealed battery of the present invention, FIG. 2 is a plan view and a cross-sectional view of a metal case opening used in the embodiment, and FIG. FIG. 4 is a plan view and a cross-sectional view of an insulating gasket used in the example, FIG. 4 is a cross-sectional view of the battery of this embodiment before swaging, FIG. FIG. 7 is a cross-sectional view of the battery of the embodiment after the opening is caulked, and FIG. 7 is an explanatory view showing a corner radius after caulking the metal case of the embodiment. 1 ... Metal case Rcs ... Corner radius of metal case opening Rcb ... Corner radius of metal case body 2 ... Gasket Rg, R'g ... Gasket corner R 3 ... Cover plate Rp … Corner radius of the lid
Claims (1)
角形金属ケース開口部に、絶縁ガス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、 かしめ後の前記金属ケース開口部のコーナー・アールRc
sと発電要素が内填されている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。1. A sealing cover plate is inserted through an insulating gasket into an opening of a rectangular metal case which is preliminarily spread outward and in which a power generating element is inserted, and the metal case opening is caulked and hermetically sealed. In a rectangular battery, the corner radius Rc of the metal case opening after caulking is set.
A rectangular sealed battery characterized in that the relationship between s and the corner radius Rcb of the metal case body in which the power generating element is contained 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 JPS63221553A (en) | 1988-09-14 |
| JP2609100B2 true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3923259B2 (en) * | 2000-08-22 | 2007-05-30 | 松下電器産業株式会社 | Battery manufacturing method |
Family Cites Families (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63221553A (en) | 1988-09-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |