JP2003242945A - Storage battery - Google Patents
Storage batteryInfo
- Publication number
- JP2003242945A JP2003242945A JP2002036243A JP2002036243A JP2003242945A JP 2003242945 A JP2003242945 A JP 2003242945A JP 2002036243 A JP2002036243 A JP 2002036243A JP 2002036243 A JP2002036243 A JP 2002036243A JP 2003242945 A JP2003242945 A JP 2003242945A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- lid
- terminal
- cap
- storage 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.)
- Pending
Links
- 230000002087 whitening effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 210000005069 ears Anatomy 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は蓄電池に関するもの
である。
【０００２】
【従来の技術】端子座にボルトを鋳込む、または、端子
の円柱部にタップを刻むことによって構成されたボルト
状端子を蓄電池蓋に固定する場合、端子部の液密、気密
を確保する必要がある。液密を確保しないと電解液が漏
れ出す場合があり、気密を確保しないと制御弁式の鉛蓄
電池などでは蓄電池性能が劣化する場合があるためであ
る。
【０００３】ボルト状端子部の液密、気密を確保する方
法としては、例えば特願２０００−２６７５１７に記載
のものがある。
【０００４】特願２０００−２６７５１７に記載の方法
は、図３に断面を示すように、蓋３裏面の端子座２と接
する部分に環状突起１０を１周以上設け（図では１
周）、ボルト１を鋳込んだ端子座２のボルト部を、ナッ
ト５で締め付けによって環状突起１０を端子座２に食い
込ませ、液密、気密を確保するものである。この際、図
４に示すように端子座２上面と蓋３裏面との間に、Ｏリ
ングやゴムパッキンなどの環状弾性体１１を配してもよ
い。
【０００５】なお、図３における４は、蓋３裏面に設け
られた端子座２と嵌合する堰であり、蓄電池内の電解液
がボルト１と接することを抑制するために設けられたも
のである。この方法において、ナット５と蓋３との間に
は図示しない平座金やバネ座金を配することもできる。
また、この例ではボルト１を端子座２に鋳込んだものを
用いているが、端子座２に円柱部を設け、その円柱部に
タップを切ることによってボルト状端子とすることも可
能である。
【０００６】
【発明が解決しようとする課題】特願２０００−２６７
５１７に記載の方法は端子部の液密、気密を充分に確保
でき、経年劣化も少ない優れた方法であるが、この方法
を用いた場合、ナット５の締め付け力に充分注意を払う
必要があった。ナット５の締め付けが弱いと液密、気密
が確保できなくなり、ナット５の締め付け力が強すぎる
と、蓋３が樹脂製の場合には、環状突起１０の形状にあ
わせて蓋３が白化する場合や、さらに締め付け力が強い
場合には蓋３が変形する場合があった。
【０００７】本発明は上記課題を解決するためになされ
たものであり、ナット５の締め付け力が強くなっても蓋
３の変形や白化を防止し、もって液密や気密に優れた蓄
電池を提供するものである。
【０００８】
【課題を解決するための手段】上記課題を解決するため
になした発明は、ボルト状端子を備え、前記ボルト状端
子が蓋に設けられた孔を通過して蓄電池外部に突出し、
前記ボルト状端子が電池外部からナットで締結される蓄
電池において、前記ボルト状端子の端子座には、前記ボ
ルト状端子が通過可能な孔を有し、かつ、天板内側面に
環状突起を有するキャップ状部材が装着されるととも
に、前記キャップ状部材の天板外側面と前記蓋の裏面と
の間に環状弾性体を備えることを特徴とする蓄電池であ
る。
【０００９】
【発明の実施の形態】本発明の実施例を図面により説明
する。図１が本発明の一実施例を示す断面図である。図
３および図４と同じ機能を備えた部分には、図３、図４
と同じ符号を記す。
【００１０】ボルト１を鋳込んだ端子座２に、まず、ボ
ルト１が通過できる孔を有し、天板内側面に環状突起１
０を備えたキャップ状部材１３をかぶせる。図２にキャ
ップ状部材１３の一例を示す。図２（Ａ）は斜視図、
（Ｂ）は上から見た平面図、（Ｃ）は正面図、（Ｄ）は
下から見た平面図（Ｅ）は（Ｂ）のＡ−Ａ断面図であ
る。このキャップ状部材１３は図２に示すように天板６
と側板７とで構成され、天板６にはボルト１が通過でき
る孔８が設けられる。また天板６の内側面には環状突起
１０が設けられる。なお、図２（Ｄ）では、図２（Ｅ）
に示す環状突起１０の頂点部のみを実線で示した。
【００１１】次にキャップ状部材１３の上面に、Ｏリン
グやゴムパッキンなどの環状弾性体１１を、ボルト１を
囲うように配する。そしてボルト１を蓋３に設けられた
孔に通過させ、ナット５によってボルトを締結する。ナ
ット５の締め付けによって環状弾性体１１が変形し、キ
ャップ状部材１３天板外側面と蓋３裏面との間の液密、
気密を確保する。一方、ナット５の締め付けによりキャ
ップ状部材１３の天板内側面に設けられた環状突起１０
が端子座２に食い込む。これにより端子座２とキャップ
状部材１３との液密が確保される。
【００１２】この他、あらかじめキャップ状部材１３の
天板内側面に設けた環状突起１０を端子座２に食い込ま
せ、液密を確保してから、Ｏリングやゴムパッキンなど
の環状弾性体１１を配し、その後、蓋３裏面とキャップ
状部材１３天板外側面の間の液密、気密を確保すること
もできる。
【００１３】この方法によって蓋３の白化、変形が防止
される理由は、白化、変形の原因であった環状突起１０
を蓋３裏面に直接成形するのではなく、キャップ状部材
１３の天板内側面に成形したため、蓋３に局部的に応力
がかかることが抑制される一方、環状弾性体１１によっ
てさらに応力を吸収することができるからである。
【００１４】
【実施例】複数の集電耳を供えた鉛−錫合金製集電体
に、鉛粉と希硫酸とを混練して充填した帯状の正負極板
各１枚を、ガラス繊維製で吸液能を備えたセパレータを
介して巻回して発電要素とした。この発電要素の複数の
同極性の集電耳をキャスト・オン・ストラップ法（ＣＯ
Ｓ法：ストラップ鋳型に複数の集電耳を投入し、そのス
トラップ鋳型に溶融した鉛または鉛合金を投入して、複
数の集電耳の接続とストラップの形成とを同時におこな
う方法）により接続した。ここで、ＣＯＳ法の実施に際
して、あらかじめボルトを鋳込んだ端子座をストラップ
鋳型に取り付けておき、端子部の形成も同時におこなっ
た。
【００１５】端子座の形状は円柱状とし、この円柱部分
に、ボルトが通過できる孔を有し、内部に環状突起を２
周備えたＡＢＳ（アクリロニトリル、ブタジエン、スチ
レンのコポリマー）製キャップ状部材をかぶせた。その
後キャップ状部材の上面に、ボルトを囲うようにゴム製
の環状パッキンを配した。そしてボルトを、ポリプロピ
レン製でボルトが通過できる孔を備えた蓋に貫通させ
た。その後、蓋の上面からボルトに平座金、バネ座金を
配した後、キャップ状部材天板内側面の環状突起が端子
座に食い込んで液密が取れるまでナットを締結した。ナ
ットの締結は人力によりおこなった。なお、端子座の材
質の例としては、キャップ状部材天板内側面の環状突起
を食い込ませることのできる鉛または鉛−錫系合金など
が好適である。
【００１６】本発明によって製造した鉛蓄電池の、蓋の
白化、変形による不良率は０．１％以下であり、従来品
の不良率１．５％に比べて１０倍以上不良率が低減し
た。
【００１７】なお、本実施例においては鉛蓄電池の例を
示したが、本発明は鉛蓄電池のみに限定されるものでは
なく、ボルト状端子を備えた蓄電池すべてに適用可能で
ある。また、蓋、ボルト、端子座、キャップ状部材の大
きさ、形状、材質は蓄電池の種類や大きさに合わせて適
したものを選択することができる。
【００１８】キャップ状部材については、本実施例に示
した通り、側板を有し端子座にかぶせることのできる形
状が望ましいが、キャップ状に限らず天板部分のみのシ
ート状とすることも可能である。なお、キャップ状部材
天板内側面に設けられた環状突起は１周以上あればよ
く、何周にするかは設計に関する事項である。また、キ
ャップ状部材天板裏面の環状突起においては、厳密に環
状である必要はなく、環の一部が切断された形状でもよ
い。さらに、環状突起や環状弾性体の形状は円形が望ま
しいが、長円形や多角形とすることもできる。
【００１９】また図１においては、図３、図４に示した
堰４を描いていないが、堰４は設けても設けなくてもよ
い。
【００２０】
【発明の効果】本発明により、ナット５の締め付け力が
強くなっても蓋３の変形や白化を防止し、もって液密や
気密に優れた蓄電池を提供することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery. 2. Description of the Related Art When a bolt-shaped terminal formed by casting a bolt into a terminal seat or cutting a tap into a cylindrical portion of the terminal is fixed to a storage battery lid, liquid-tightness and air-tightness of the terminal portion are required. Need to secure. If liquid tightness is not ensured, the electrolyte may leak, and if air tightness is not ensured, the storage battery performance of a control valve type lead storage battery or the like may deteriorate. As a method for ensuring liquid tightness and air tightness of a bolt-shaped terminal portion, for example, there is a method described in Japanese Patent Application No. 2000-267517. In the method described in Japanese Patent Application No. 2000-267517, as shown in a cross section in FIG. 3, an annular projection 10 is provided one or more times on the back surface of a lid 3 in contact with a terminal seat 2 (in FIG.
Circumferentially), the bolts of the terminal seat 2 into which the bolts 1 are cast are tightened with the nuts 5 so that the annular projections 10 bite into the terminal seat 2 to secure liquid tightness and air tightness. At this time, an annular elastic body 11 such as an O-ring or rubber packing may be arranged between the upper surface of the terminal seat 2 and the back surface of the lid 3 as shown in FIG. Reference numeral 4 in FIG. 3 denotes a weir fitted to the terminal seat 2 provided on the back surface of the lid 3, and is provided to prevent the electrolyte in the storage battery from contacting the bolt 1. is there. In this method, a flat washer or a spring washer (not shown) may be arranged between the nut 5 and the lid 3.
Further, in this example, the bolt 1 is cast into the terminal seat 2. However, it is also possible to form a bolt-like terminal by providing a column portion on the terminal seat 2 and cutting off a tap on the column portion. . [0006] Japanese Patent Application No. 2000-267.
The method described in No. 517 is an excellent method that can sufficiently secure the liquid-tightness and air-tightness of the terminal portion and has little deterioration over time. However, when this method is used, it is necessary to pay sufficient attention to the tightening force of the nut 5. Was. If the nut 5 is not sufficiently tightened, liquid tightness and airtightness cannot be ensured, and if the nut 5 is tightened too strongly, the lid 3 is whitened according to the shape of the annular projection 10 when the lid 3 is made of resin. In addition, when the tightening force is further strong, the lid 3 may be deformed. The present invention has been made to solve the above problems, and provides a storage battery which prevents deformation and whitening of the lid 3 even when the tightening force of the nut 5 is increased, and which is excellent in liquid tightness and airtightness. Is what you do. According to an aspect of the present invention, there is provided an electric vehicle including a bolt-shaped terminal, the bolt-shaped terminal protruding outside a storage battery through a hole provided in a lid,
In the storage battery in which the bolt-shaped terminal is fastened with a nut from the outside of the battery, the terminal seat of the bolt-shaped terminal has a hole through which the bolt-shaped terminal can pass, and has an annular protrusion on the inner surface of the top plate. A storage battery comprising a cap-shaped member mounted thereon and an annular elastic body provided between an outer surface of a top plate of the cap-shaped member and a back surface of the lid. An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing one embodiment of the present invention. The parts having the same functions as those in FIGS.
The same reference numerals are used. First, a terminal seat 2 into which a bolt 1 is cast has a hole through which the bolt 1 can pass.
0 is placed over the cap-shaped member 13. FIG. 2 shows an example of the cap-shaped member 13. FIG. 2A is a perspective view,
(B) is a plan view viewed from above, (C) is a front view, (D) is a plan view viewed from below, and (E) is a cross-sectional view taken along line AA of (B). As shown in FIG.
And a side plate 7, and the top plate 6 is provided with a hole 8 through which the bolt 1 can pass. An annular projection 10 is provided on the inner surface of the top plate 6. Note that in FIG. 2D, FIG.
Are shown by solid lines. Next, an annular elastic body 11 such as an O-ring or rubber packing is disposed on the upper surface of the cap-like member 13 so as to surround the bolt 1. Then, the bolt 1 is passed through a hole provided in the lid 3, and the bolt is fastened by the nut 5. The annular elastic body 11 is deformed by the tightening of the nut 5, and the liquid-tightness between the outer surface of the cap-shaped member 13 and the back surface of the lid 3,
Ensure airtightness. On the other hand, the annular projection 10 provided on the inner surface of the top plate of the cap-shaped member 13 by tightening the nut 5
Bites into the terminal seat 2. Thus, liquid tightness between the terminal seat 2 and the cap-shaped member 13 is ensured. In addition, the annular projection 10 provided on the inner surface of the top plate of the cap-shaped member 13 is bite into the terminal seat 2 to secure liquid tightness, and then the annular elastic body 11 such as an O-ring or rubber packing is removed. After that, liquid tightness and airtightness between the back surface of the lid 3 and the outer surface of the top of the cap-like member 13 can be ensured. The reason why the whitening and deformation of the lid 3 are prevented by this method is that the annular projection 10 which caused the whitening and deformation was used.
Is formed directly on the inner surface of the top plate of the cap-shaped member 13 instead of being formed directly on the back surface of the lid 3, so that stress is not locally applied to the lid 3, while the annular elastic body 11 further absorbs stress Because you can. EXAMPLE A lead-tin alloy current collector provided with a plurality of current collector ears was kneaded with lead powder and dilute sulfuric acid, and each was filled with a strip of positive and negative electrodes. To form a power generating element by winding through a separator having a liquid absorbing ability. A plurality of collector ears of the same polarity of this power generation element are cast-on-strap method (CO
S method: a method in which a plurality of current collecting ears are charged into a strap mold, molten lead or a lead alloy is charged into the strap mold, and the plurality of current collecting ears are connected to the strap simultaneously. . At the time of performing the COS method, a terminal seat in which bolts were cast in advance was attached to a strap mold, and a terminal portion was formed at the same time. The shape of the terminal seat is cylindrical, and the cylindrical portion has a hole through which a bolt can pass.
A capped member made of ABS (a copolymer of acrylonitrile, butadiene, and styrene) was covered. Thereafter, a rubber annular packing was arranged on the upper surface of the cap-like member so as to surround the bolt. The bolt was then passed through a lid made of polypropylene with a hole through which the bolt could pass. After that, a flat washer and a spring washer were arranged on the bolt from the upper surface of the lid, and the nut was fastened until the annular projection on the inner surface of the top plate of the cap-shaped member cut into the terminal seat and liquid tightness was obtained. The nut was tightened manually. In addition, as an example of the material of the terminal seat, lead or a lead-tin-based alloy that can penetrate the annular protrusion on the inner surface of the cap-like member top plate is preferable. The lead rate of the lead-acid battery manufactured according to the present invention was 0.1% or less due to whitening and deformation of the lid, and the defective rate was reduced by 10 times or more as compared with 1.5% of the conventional product. In this embodiment, an example of a lead-acid battery has been described, but the present invention is not limited to a lead-acid battery but can be applied to all batteries having bolt terminals. In addition, the size, shape, and material of the lid, bolt, terminal seat, and cap-shaped member can be appropriately selected according to the type and size of the storage battery. As shown in this embodiment, it is desirable that the cap-like member has a shape that has a side plate and can be put on the terminal seat. It is. Note that the annular projection provided on the inner surface of the top plate of the cap-shaped member may be one or more rounds, and how many rounds is a matter of design. Further, the annular projection on the back surface of the top plate of the cap-like member does not need to be strictly annular, and may have a shape in which a part of the ring is cut. Further, the shape of the annular projection or the annular elastic body is preferably circular, but may be an oval or polygon. Although the weir 4 shown in FIGS. 3 and 4 is not shown in FIG. 1, the weir 4 may or may not be provided. According to the present invention, even if the tightening force of the nut 5 is increased, the lid 3 is prevented from being deformed or whitened, and a storage battery excellent in liquid tightness and air tightness can be provided.
【図面の簡単な説明】 【図１】 実施例 【図２】 キャップ状部材 【図３】 従来例 【図４】 従来例 【符号の説明】 １ ボルト ２ 端子座 ３ 蓋 ４ 堰 ５ ナット ６ 天板 ７ 側板 ８ 孔 １０ 環状突起 １１ 弾性部材 １３ キャップ状部材[Brief description of the drawings] FIG. 1 Example FIG. 2 is a cap-shaped member. FIG. 3 Conventional example FIG. 4 Conventional example [Explanation of symbols] 1 volt 2 Terminal seat 3 lid 4 Weir 5 nuts 6 Top plate 7 Side plate 8 holes 10 annular projection 11 Elastic member 13 Cap-shaped member
Claims (1)
が蓋に設けられた孔を通過して蓄電池外部に突出し、前
記ボルト状端子が電池外部からナットで締結される蓄電
池において、 前記ボルト状端子の端子座には、前記ボルト状端子が通
過可能な孔を有し、かつ、天板内側面に環状突起を有す
るキャップ状部材が装着されるとともに、前記キャップ
状部材の天板外側面と前記蓋の裏面との間に環状弾性体
を備えることを特徴とする蓄電池。Claims 1. A bolt-shaped terminal is provided, the bolt-shaped terminal protruding outside a storage battery through a hole provided in a lid, and the bolt-shaped terminal is fastened with a nut from the outside of the battery. In the storage battery, a cap-shaped member having a hole through which the bolt-shaped terminal can pass and having an annular projection on an inner surface of a top plate is mounted on a terminal seat of the bolt-shaped terminal, and the cap-shaped member A storage battery comprising an annular elastic body between the outer surface of the top plate and the back surface of the lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002036243A JP2003242945A (en) | 2002-02-14 | 2002-02-14 | Storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002036243A JP2003242945A (en) | 2002-02-14 | 2002-02-14 | Storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003242945A true JP2003242945A (en) | 2003-08-29 |
Family
ID=27778182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002036243A Pending JP2003242945A (en) | 2002-02-14 | 2002-02-14 | Storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003242945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100820593B1 (en) | 2006-08-30 | 2008-04-14 | 경신공업 주식회사 | Structure of connecting a ring-terminal in a junction-box |
| JP2009501412A (en) * | 2005-07-13 | 2009-01-15 | バッツキャップ | Electrical connection terminals for power storage cells |
-
2002
- 2002-02-14 JP JP2002036243A patent/JP2003242945A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009501412A (en) * | 2005-07-13 | 2009-01-15 | バッツキャップ | Electrical connection terminals for power storage cells |
| KR100820593B1 (en) | 2006-08-30 | 2008-04-14 | 경신공업 주식회사 | Structure of connecting a ring-terminal in a junction-box |
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