JP2609103B2 - Manufacturing method of sealed battery - Google Patents
Manufacturing method of sealed batteryInfo
- Publication number
- JP2609103B2 JP2609103B2 JP62076150A JP7615087A JP2609103B2 JP 2609103 B2 JP2609103 B2 JP 2609103B2 JP 62076150 A JP62076150 A JP 62076150A JP 7615087 A JP7615087 A JP 7615087A JP 2609103 B2 JP2609103 B2 JP 2609103B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- metal case
- crimp
- corner radius
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002184 metal Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 9
- 238000002788 crimping Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 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
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
-
- 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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は金属ケースとクリンプ下型とを改良した密閉
形アルカリ電気の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for producing a sealed alkaline electricity in which a metal case and a crimp lower mold are improved.
従来密閉形電池、例えば円筒形電池は有底金属ケース
内に発電要素を収納し、ケース開口端に絶縁ガスケット
を介した封口蓋板を挿入した後、金属ケース底部をクリ
ンプ下型で受けて、ケース開口端をクリンプ上型にて内
方に折曲して封口していた。Conventional sealed batteries, for example, cylindrical batteries, house a power generation element in a bottomed metal case, insert a sealing lid plate via an insulating gasket at the open end of the case, and then receive the bottom of the metal case with a crimp lower mold, The open end of the case was bent inward with a crimp upper mold to seal the case.
しかしこのような製造方法の場合、金属ケース底部の
コーナーアールがクリンプ下型のコーナーアールよりも
大きいと、ケース開口端をクリンプ上型で折曲する際、
第2図のように、下方向へのプレス圧力を垂直に受けら
れず、金属ケース11のコーナーアールR′Cのケース底
部11b点に集中するため、ケース底部の内方へケース材
料が移動し、ケース底部が第2図のようにそり上り変形
するとともに、金属ケース11の立上り高さが下り、開口
端を所定寸法まで折曲できなくなり、密閉性が低下する
問題があつた。However, in the case of such a manufacturing method, when the corner radius of the bottom of the metal case is larger than the corner radius of the lower crimp, when the case opening end is bent by the upper crimp,
As shown in FIG. 2, since the downward pressing pressure cannot be received vertically, and it concentrates on the point 11b of the corner R R C of the metal case 11, the case material moves inward of the case bottom. As shown in FIG. 2, the bottom of the case is deformed by warping, and the height of the metal case 11 is lowered, so that the opening end cannot be bent to a predetermined size, and the sealing performance is reduced.
また、ケース底部11bのコーナーアールR′Cとクリン
プ下型のコーナーアールとが同一の場合にも、下方向へ
のプレス圧力はコーナーアールR′Cの全体に分散され
るが、ケース材料がクリンプ下型に沿つてケース底部11
bが内方へ移動してしまい、上記と同様の問題があつ
た。Also, 'even if C and the crimp lower die corner radius of the same pressing pressure downward corner radius R' corner radius R of the case bottom 11b but is distributed throughout the C, Case Material crimp Case bottom 11 along the lower mold
b moved inward, causing the same problem as above.
本発明は上記欠点を除去し、密閉形電池の封口性の向
上と電池外観不良の低減を目的とするものである。An object of the present invention is to eliminate the above-mentioned drawbacks and to improve the sealing performance of a sealed battery and reduce the appearance defect of the battery.
本発明は発電要素を内填した有底金属ケース開口端を
かしめて封口する密閉形電池において、第1図のよう
に、ケース底部のクリンプ前の既製のコーナーアールRC
と、クリンプ下型の垂直面と水平面との間のコーナー・
アールRDとの関係を、 RC<RD とすることを特徴として密封口する密閉形電池の製造方
法である。The present invention relates to a sealed battery in which the opening end of a bottomed metal case containing a power generating element is sealed by caulking, as shown in FIG. 1, a ready-made corner radius R C of the case bottom before crimping.
And the corner between the vertical plane and the horizontal plane of the crimp lower die
A method for producing a sealed battery having a sealed opening, characterized in that the relationship with R D is R C <R D.
上記のように、本発明は第1図のように、金属ケース
底部のクリンプ前の既製のコーナーアールRCと、クリン
プ下型の垂直面と水平面との間のコーナー・アールRDと
の関係を、 RC<RD とすることで、金属ケース開口端をクリンプ上型で折曲
する際の下方向へのプレス圧力を、コーナーアールRCの
円弧中央部で、クリンプ下型に対して垂直方向に受ける
ことができるので、ケース材料の移動によるケース底部
の移動変形が防げるととともに、金属ケース開口端を所
定寸法まで折曲できるので封口性の優れた密閉形電池が
得られる。As described above, as shown in FIG. 1, the present invention relates to the relationship between the pre-crimped corner radius R C of the bottom of the metal case and the corner radius R D between the vertical surface and the horizontal surface of the crimp lower die. and by a R C <R D, a press pressure downward when bending the metal casing open end with a crimp top mold, a circular arc central portion of the corner radius R C, relative crimp lower die Since it can be received in the vertical direction, the deformation of the case bottom caused by the movement of the case material can be prevented, and the open end of the metal case can be bent to a predetermined size, so that a sealed battery with excellent sealing properties 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(イ)において、1は金属板を絞り加工により
有底筒状に既に成形した金属ケースを示す。この金属ケ
ース1内に発電要素4を収納したのち、合成樹脂を射出
成形して得られる断面L字形の絶縁ガスケット2内に金
属製平板を打抜いて得られる蓋板3を納めた封口部材
を、金属ケース1の開口部側に設けられた内方突出部1a
上に載置する。In FIG. 1 (a), reference numeral 1 denotes a metal case which has already been formed into a bottomed cylindrical shape by drawing a metal plate. After the power generation element 4 is housed in the metal case 1, a sealing member containing a cover plate 3 obtained by punching a flat metal plate into an insulating gasket 2 having an L-shaped cross section obtained by injection molding a synthetic resin is used. , An inwardly protruding portion 1a provided on the opening side of the metal case 1.
Place on top.
そして第1図(ロ)に示すように、金属ケース底部1b
のコーナーアールRCとクリンプ下型Dlのコーナーアール
RDとの関係を、RC<RDとしたクリンプ下型Dlでケース底
部1bを受けて、金属ケース開口端をクリンプ上型Duにて
内方に折曲して絶縁ガスケット2を介して蓋板3を固定
し、第1図(ハ)に示すような密閉形アルカリ電池を製
造する。Then, as shown in FIG. 1 (b), the metal case bottom 1b
Corner radius R C and crimp lower type Dl corner radius
The relationship between R D, receives a case bottom portion 1b with a crimp under type Dl which was R C <R D, via an insulating gasket 2 by bending inward the metal casing open end at the crimp upper die Du With the cover plate 3 fixed, a sealed alkaline battery as shown in FIG. 1 (c) is manufactured.
本発明によれば、金属ケース底部のコーナーアールRC
と、クリンプ下型のコーナーアールRDとの関係を、 RC<RD とすることで、金属ケース開口端をクリンプ上型で折曲
する際の下方向へのプレス圧力を、コーナーアールRCの
円周の中央部でクリンプ下型Dlに対して垂直方向に受け
ることができるので、金属ケース材料の移動によるケー
ス底部の変形を防げるとともに、金属ケース開口端を所
定寸法まで折曲できるので、封口性の優れた密閉形電池
が得られる。According to the present invention, the corner radius R C at the bottom of the metal case is
By setting the relationship between the corner radius R D of the lower crimp type and R C <R D , the downward press pressure when bending the open end of the metal case with the upper crimp type reduces the corner R R Since it can be received in the center of the circumference of C in the vertical direction with respect to the crimp lower die Dl, deformation of the case bottom due to movement of the metal case material can be prevented, and the metal case opening end can be bent to a predetermined size. Thus, a sealed battery having excellent sealing properties can be obtained.
第1図(イ)は本発明の製造方法の一実施例における密
閉形電池の封口前の断面図、第1図(ロ)は同実施例に
おけるクリンプ型の断面図、(ハ)は同電池の封口後の
断面図、第2図は従来電池の封口後の金属ケースの底部
断面図である。 1,11……金属ケース、1b,11b……ケース底部 RC,R′C……ケース底部のコーナーアール Dl……クリンプ下型 RD……クリンプ下型のコーナーアールFIG. 1A is a cross-sectional view of a sealed battery before sealing according to one embodiment of the manufacturing method of the present invention, FIG. 1B is a cross-sectional view of the crimp type battery according to the embodiment, and FIG. FIG. 2 is a bottom sectional view of the metal case after sealing of the conventional battery. 1,11 …… Metal case, 1b, 11b …… Case bottom R C , R ′ C …… Case bottom corner radius Dl …… Crimp lower type R D …… Crimp lower type corner radius
Claims (1)
に絶縁ガスケットを介して封口蓋板を挿入した後、クリ
ンプ下型で金属ケース底部を受けて、ケース開口端をク
リンプ上型でかしめて封口する密閉形電池の製造方法に
おいて、 金属ケース底部のクリンプ前の既製のコーナー・アール
RCと、クリンプ下型の垂直面と水平面との間のコーナー
・アールRDとの関係を、 RC<RD とすることを特徴とする密閉形電池の製造方法。After inserting a sealing cover plate through an insulating gasket into an opening end of a bottomed metal case in which a power generating element is inserted, the bottom end of the metal case is received by a crimping lower mold, and the case opening end is crimped by an upper crimping mold. In a method of manufacturing a sealed battery which is sealed by caulking, a pre-made corner radius before crimping of a bottom of a metal case is provided.
R C and, the relationship between the corner radius R D between the vertical and horizontal planes of the crimp under type, method of manufacturing the sealed battery, characterized in that the R C <R D.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62076150A JP2609103B2 (en) | 1987-03-31 | 1987-03-31 | Manufacturing method of sealed battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62076150A JP2609103B2 (en) | 1987-03-31 | 1987-03-31 | Manufacturing method of sealed battery |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63244550A JPS63244550A (en) | 1988-10-12 |
JP2609103B2 true JP2609103B2 (en) | 1997-05-14 |
Family
ID=13596990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62076150A Expired - Fee Related JP2609103B2 (en) | 1987-03-31 | 1987-03-31 | Manufacturing method of sealed battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2609103B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008260058A (en) * | 2007-04-09 | 2008-10-30 | Yoshitaka Aoyama | Welding equipment |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5217617A (en) * | 1975-07-31 | 1977-02-09 | Fuji Electrochemical Co Ltd | Method of producing sealed battery |
JPS61114466A (en) * | 1984-07-24 | 1986-06-02 | Shin Kobe Electric Mach Co Ltd | Assembly device of sealing parts for cylindrical battery |
-
1987
- 1987-03-31 JP JP62076150A patent/JP2609103B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008260058A (en) * | 2007-04-09 | 2008-10-30 | Yoshitaka Aoyama | Welding equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS63244550A (en) | 1988-10-12 |
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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 |