JPH0379822B2 - - Google Patents
Info
- Publication number
- JPH0379822B2 JPH0379822B2 JP59061950A JP6195084A JPH0379822B2 JP H0379822 B2 JPH0379822 B2 JP H0379822B2 JP 59061950 A JP59061950 A JP 59061950A JP 6195084 A JP6195084 A JP 6195084A JP H0379822 B2 JPH0379822 B2 JP H0379822B2
- Authority
- JP
- Japan
- Prior art keywords
- battery case
- recess
- safety valve
- lead
- 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 - Lifetime
Links
- 239000002253 acid Substances 0.000 claims description 14
- 239000011347 resin Substances 0.000 description 14
- 229920005989 resin Polymers 0.000 description 14
- 238000003860 storage Methods 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000011149 active material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 229910000978 Pb alloy Inorganic materials 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000717 retained effect Effects 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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)
- Gas Exhaust Devices For Batteries (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は薄型の密閉型鉛蓄電池に係り、電槽内
部で起こる電気化学反応の生成物としての不要な
ガスを外界へ放出し、電槽内の内圧上昇を防護す
る安全弁及びその収納部の構造に関するものであ
る。[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a thin sealed lead-acid battery, which discharges unnecessary gas as a product of electrochemical reactions occurring inside the battery case to the outside world, and generates electricity. This invention relates to a safety valve that protects against an increase in internal pressure within a tank and the structure of its housing.
(ロ) 従来技術
本発明の基盤となる公知の技術として実公昭40
−31878号公報、実公昭40−31879号公報、及び実
開昭58−155763号公報がある。(b) Prior art As a publicly known technology that forms the basis of the present invention,
There are Japanese Utility Model Publication No.-31878, Japanese Utility Model Publication No. 1987-31879, and Japanese Utility Model Application Publication No. 155763-1988.
() 実公昭40−31878号公報
これに開示されている技術は電槽１′の上部
に突入形成された凸部２′の側方に電槽内部と
連通せる透孔３′を形成し、この透孔３′を塞ぐ
ように前記凸部２′にゴム管４′が嵌着されてい
る。そして前記ゴム管４′が抜け出ないように
蓋体にて抜け止めがなされ、この蓋体にも透孔
を形成しているものである（第７図イ〜ハ参
照）。() Publication of Utility Model Publication No. 40-31878 The technology disclosed therein forms a through hole 3' that communicates with the inside of the battery case on the side of a protrusion 2' that is formed in the upper part of the battery case 1'. A rubber tube 4' is fitted into the convex portion 2' so as to close the through hole 3'. The rubber tube 4' is prevented from slipping out by a lid, and a through hole is formed in the lid as well (see FIGS. 7A to 7C).
() 実公昭40−31878号公報
これに開示されている技術は電槽５′の上部
に形成されたエントツ状６′の上端を開口７′
し、この開口７′を塞ぐようにゴムキヤツプ
８′を装着している。そして前記ゴムキヤツプ
８′がエントツ状６′から抜け出ないように蓋体
にて抜け止めがなされ、この蓋体にも小透孔が
形成されている（第８図イ〜ハ参照）。() Publication of Utility Model Publication No. 40-31878 The technique disclosed in this document is to open the upper end of the recess-shaped 6' formed on the upper part of the battery case 5'.
A rubber cap 8' is attached so as to close this opening 7'. The rubber cap 8' is prevented from slipping out from the socket 6' by a lid, and this lid is also formed with small through holes (see FIGS. 8A to 8C).
() 特開昭58−155763号公報
これに開示された技術は本発明と同じ密閉薄
型の鉛蓄電池であつて、一対の樹脂体とその間
に挾着される枠体とによつて電槽を構成し、該
枠体の厚み方向に前記電槽内部と外界とを連通
せしめる安全弁収納部を形成し、この収納部に
その周曲面部が一方の樹脂体及び該収納部内壁
との間に圧接された管形状の安全弁を収容して
いる。() Japanese Unexamined Patent Publication No. 58-155763 The technology disclosed therein is a sealed thin lead-acid battery similar to the present invention, and a battery case is formed by a pair of resin bodies and a frame body held between them. A safety valve accommodating portion is formed in the thickness direction of the frame body to communicate the inside of the battery case with the outside world, and the circumferential curved surface portion of the accommodating portion is pressed between one resin body and the inner wall of the accommodating portion. It houses a pipe-shaped safety valve.
次に上記の公知技術の問題点を考察する。 Next, problems with the above-mentioned known technology will be considered.
公知例（）にある円筒状凸部を薄型の鉛蓄電
池に適用する場合、電槽の厚み寸法を小さくする
ために前記円筒状凸部を第９図に示す様に電槽
９′の側面に形成しなければならない。この第９
図の電槽９′形状を金型で一体成形しようとする
と、成形金型は図の矢印で示す方向即ち上下方向
から挟む方法が採用される。この成形金型によつ
て円筒状凸部１０′を形成しようとすれば、電槽
９′内部に対応する金型部内でスライド自在とな
つた棒を設けないと形成できない。しかもこの方
法は金型作製上非常に困難となる。 When applying the cylindrical protrusion in the known example () to a thin lead-acid battery, the cylindrical protrusion is attached to the side surface of the battery case 9' as shown in FIG. 9 in order to reduce the thickness of the battery case. must be formed. This ninth
If the shape of the battery case 9' shown in the figure is to be integrally molded using a mold, a method is adopted in which the molding mold is held in the direction shown by the arrow in the figure, that is, from the top and bottom directions. If an attempt is made to form the cylindrical convex portion 10' using this mold, it will not be possible to form the convex portion 10' unless a rod that is slidable within the mold portion corresponding to the inside of the battery case 9' is provided. Moreover, this method is extremely difficult in terms of mold production.
また公知例（）のエントツ状部を上と同じ成
形金型で作るのは比較的容易ではある（孔を形成
する金型を電槽外に別個に用意できるため）が、
ガス抜き穴及び安全弁の成形には寸法的限界があ
り、本発明が狙いとする薄型の形状は単純ではな
いため、金型の加工が精度の点で難かしく、且つ
樹脂の充填性も悪くなり、樹脂硬化時のヒケ等の
問題によつて寸法が安定しない。 Also, it is relatively easy to make the entrance-shaped part of the known example () using the same mold as above (because the mold for forming the hole can be prepared separately outside the battery case),
There are dimensional limits to the molding of gas vent holes and safety valves, and the thin shape that the present invention aims for is not simple, making mold processing difficult in terms of accuracy and also having poor resin filling properties. , dimensions are not stable due to problems such as sink marks during resin curing.
更に公知例（）の安全弁は枠体と樹脂体によ
つてその周曲面部が圧接されるため、安全弁がそ
の径方向に伸張するため、枠体に形成される収納
部の寸法を大きく取る必要が生じ、電槽の長手方
向寸法も増大する結果となる。しかも樹脂体装着
前に枠体の収納部に予め安全弁を仮固定する必要
があるが、前記収納部は開放しているため、一旦
収納部に圧入された安全弁はその弾性復帰力によ
つて飛び出るので組立作業性が悪い。 Furthermore, since the safety valve of the known example () has its circumferential curved surface pressed against the frame body and the resin body, the safety valve extends in its radial direction, so it is necessary to increase the dimensions of the storage portion formed in the frame body. This results in an increase in the longitudinal dimension of the battery case. Moreover, it is necessary to temporarily fix the safety valve in the housing part of the frame body before attaching the resin body, but since the housing part is open, the safety valve once press-fitted into the housing part will pop out due to its elastic return force. Therefore, assembly workability is poor.
(ハ) 発明の目的
本発明は上述の如き従来の各技術手段の夫々の
問題点に鑑みて成されたものであり、安全弁の構
造の簡素化を図り、且安全弁装置が占有する体積
を少なくして電池自身の小型薄型化を図ることを
目的とするものである。(c) Purpose of the Invention The present invention has been made in view of the problems of each of the conventional technical means as described above, and aims to simplify the structure of a safety valve and reduce the volume occupied by the safety valve device. The purpose of this is to make the battery itself smaller and thinner.
(ニ) 発明の構成
電槽と電槽蓋より成る外装ケースの一側に凹所
を形成し、該凹所の内壁に前記電槽内部或いは外
界と連通するガス抜き穴を設けると共に、前記凹
所に弾性を有する管形状の安全弁をその両端の切
断面部が前記電槽及び電槽蓋に当接するような方
向で収納せしめたものである。(d) Structure of the invention A recess is formed on one side of an exterior case consisting of a battery case and a battery case lid, and a gas vent hole communicating with the inside of the battery case or the outside world is provided in the inner wall of the recess, and the recess is formed in the inner wall of the recess. A tube-shaped safety valve having elasticity is housed in such a direction that the cut surfaces at both ends of the valve come into contact with the battery case and the battery case lid.
(ホ) 実施例
第１図〜第４図は本発明鉛蓄電池に関するもの
である。１はハイインパクトスチロール樹脂より
成り、図示しない鉛又は鉛合金より成る一対の平
板状集電体と、該各集電体の内表面に装着される
活物質極板と、この活物質極板間に適当に加圧さ
れて介在されるガラス繊維製セパレータと、前記
極板表面及び前記セパレータに含浸保持され完成
された電池内に実質的に遊離の電解液が存在しな
いようにして注液される電解液とより成る発電素
体の収納凹部２が形成されている電槽である。(E) Embodiment FIGS. 1 to 4 relate to the lead-acid battery of the present invention. 1 is made of high-impact styrene resin, and includes a pair of flat current collectors made of lead or lead alloy (not shown), active material electrode plates attached to the inner surface of each current collector, and a space between the active material electrode plates. A glass fiber separator is inserted under appropriate pressure, and the electrode plate surface and the separator are impregnated and held, and the electrolyte is injected so that substantially no free electrolyte is present in the completed battery. This is a battery case in which a recess 2 for storing a power generating element body made of an electrolyte is formed.
３は前記電槽１の前記収納凹部２を密接に閉塞
するハイインパクトスチロール樹脂より成る電槽
蓋であり、前記電槽１に超音波溶着される。４は
前記電槽１の一側に形成された平面楕円形状の凹
所であり、その長手方向の対向内壁に前記収納凹
部２と凹所４とを連通せるガス抜穴５と前記凹所
と外界とを連通せるガス抜穴６とが同一軸上に
夫々穿設されている。 Reference numeral 3 designates a battery case lid made of high-impact styrene resin that tightly closes the storage recess 2 of the battery case 1, and is ultrasonically welded to the battery case 1. Reference numeral 4 denotes a recess having an elliptical planar shape formed on one side of the battery case 1, and a gas vent hole 5 that communicates the storage recess 2 with the recess 4 and the recess are provided on the opposing inner wall in the longitudinal direction. Gas vent holes 6 communicating with the outside world are provided on the same axis.
７は前記凹所４内に圧入される弾性を有する管
形状の安全弁であり、両端に一対のドーナツ状切
断面部７ａ，７ｂを有し、収納時には、この切断
面部７ａ，７ｂが前記電槽蓋３と凹所４の底面に
当接するように縦方向に収納される。従つて前記
安全弁７の周曲面部７ｃは前記凹所４の内壁に対
し、一旦その円筒形状の外形を変形して楕円筒形
として該凹所４に収納され、その中で弾性復帰す
るので、常時圧接され、前記電槽蓋３を装着固定
する迄の仮固定手段となつている。 Reference numeral 7 designates an elastic tube-shaped safety valve that is press-fitted into the recess 4, and has a pair of donut-shaped cut surfaces 7a and 7b at both ends. 3 and the bottom of the recess 4 are stored in the vertical direction. Therefore, the circumferentially curved surface portion 7c of the safety valve 7 temporarily changes its cylindrical outer shape against the inner wall of the recess 4 and is housed in the recess 4 as an elliptical cylinder, and elastically returns therein. It is constantly pressed and serves as a temporary fixing means until the battery case lid 3 is attached and fixed.
８は前記電槽１の一側に取付けられ、前記収納
凹部２内の発電素体に電気接続された一方の端子
金具、９は前記電槽１の一側に切欠形成された他
方の端子取付部である。 Reference numeral 8 denotes one terminal fitting that is attached to one side of the battery case 1 and electrically connected to the power generation element in the storage recess 2, and 9 is the other terminal fitting formed in a notch on one side of the battery case 1. Department.
前記ガス抜穴５，６は前記電槽１の成形時に、
該電槽１を形成するための図示しない上金型及び
下金型とは別に側方から先端に細長い柱状突部１
０を有する金型１１のその柱状突部１０を前記上
金型の前記凹所４の形成部に設けた通孔に挿通し
て、樹脂を全金型によつて形成される空間内に流
し込んで硬化させ、夫々の金型を抜くことによつ
て簡単に形成できる。 The gas vent holes 5 and 6 are formed during molding of the battery case 1.
Separately from an upper mold and a lower mold (not shown) for forming the battery case 1, there is a columnar projection 1 elongated from the side to the tip.
0 of the mold 11 is inserted into a through hole provided in the forming part of the recess 4 of the upper mold, and resin is poured into the space formed by the entire mold. It can be easily formed by curing the resin and removing the respective molds.
第５図〜第６図は本発明鉛蓄電池の他の実施例
である。 5 and 6 show other embodiments of the lead-acid battery of the present invention.
１２はハイインパクトスチロール樹脂より成
り、図示しない鉛又は鉛合金より成る一対の平板
状集電体と、各集電体の内表面に装着される活物
質極板と、この活物質極板間に適当に加圧されて
介在されるガラス繊維製セパレータと、前記極板
表面及び前記セパレータに含浸保持され完成され
た電池内に実質的に遊離の電解液が存在しないよ
うにして注液される電解液とより成る発電素体の
収納凹部１３が形成されている電槽である。 Reference numeral 12 is made of high-impact styrene resin, and includes a pair of flat current collectors made of lead or lead alloy (not shown), an active material electrode plate attached to the inner surface of each current collector, and a structure between the active material electrode plates. A glass fiber separator is inserted under appropriate pressure, and an electrolyte is injected so that substantially no free electrolyte is present in the completed battery by being impregnated and retained on the surface of the electrode plate and the separator. This is a battery case in which a housing recess 13 for a power generation element made of liquid is formed.
１４は前記電槽１２の前記収納凹部１３を密接
に閉塞するハイインパクトスチロール樹脂より成
る電槽蓋であり、前記電槽１２に超音波溶着され
る。 Reference numeral 14 denotes a battery case lid made of high-impact styrene resin that tightly closes the storage recess 13 of the battery case 12, and is ultrasonically welded to the battery case 12.
１５は前記電槽の一側に形成された平面楕円形
状の凹所であり、その長手方向の対向内壁に前記
収納凹部１２と凹所１５とを連通せるガス抜穴１
６を設けている。 Reference numeral 15 denotes a recess having an elliptical planar shape formed on one side of the battery case, and a gas vent hole 1 is provided on the opposing inner wall in the longitudinal direction to communicate the storage recess 12 and the recess 15.
There are 6.
前記凹所１５内に圧入される弾性を有する管形
状の安全弁は、両端に前述の安全弁７と同じく一
対のドーナツ状切断面部を有し、収納時には、こ
の切断面部が前記電槽蓋１４と凹所１５の底面に
当接するように縦方向に収納される。従つて前記
安全弁の周曲面部は前記凹所１５の内壁に対し、
一旦その円筒形状の外形を変形して楕円筒形とし
て該凹所１５に収納され、その中で弾性復帰する
ので、常時圧接され前記電槽蓋１４の装着固定す
る迄の仮固定手段となつている。 The elastic tube-shaped safety valve that is press-fitted into the recess 15 has a pair of donut-shaped cut surfaces at both ends, similar to the safety valve 7 described above, and when stored, these cut surfaces fit into the recess with the battery case lid 14. It is stored in the vertical direction so as to abut the bottom surface of the space 15. Therefore, the circumferential curved surface portion of the safety valve is in contact with the inner wall of the recess 15,
Once its cylindrical outer shape is changed and it is stored in the recess 15 as an elliptical cylinder, it is elastically restored within the recess, so that it is constantly pressed and serves as a temporary fixing means until the battery case cover 14 is attached and fixed. There is.
１７は前記凹所１５の一内面壁に形成された切
欠溝、１８は前記電槽蓋１４の内面より垂下形成
された舌片である。また１９は前記電槽１２の一
側に取付けられ、前記収納凹部１２内の発電素体
に電気接続された一方の端子金具、２０は前記電
槽１２の一側に切欠形成された他方の端子取付部
である。そして２１は前記電槽蓋１４に垂下形成
された嵌合突部である。前記電槽蓋１４と電槽１
２との合体時において前記舌片１８は前記切欠溝
１７に、前記嵌合突部２１は前記端子取付部２０
に夫々嵌合される。但し前記舌片１８と前記切欠
溝１７との間に少許の隙間（図示せず）が形成さ
れ、この隙間は前記凹所１５と外界とを連通する
ガス抜穴の役目を担うものである。 Reference numeral 17 indicates a notch groove formed on one inner wall of the recess 15, and reference numeral 18 indicates a tongue piece formed to hang down from the inner surface of the battery case lid 14. Further, 19 is one terminal fitting attached to one side of the battery case 12 and electrically connected to the power generating element in the storage recess 12, and 20 is the other terminal formed in a notch on one side of the battery case 12. This is the mounting part. Reference numeral 21 denotes a fitting protrusion formed to hang down from the battery case lid 14. The battery case lid 14 and the battery case 1
2, the tongue piece 18 fits into the notch groove 17, and the fitting protrusion 21 fits into the terminal mounting part 20.
are fitted respectively. However, a small gap (not shown) is formed between the tongue piece 18 and the notch groove 17, and this gap serves as a gas vent hole that communicates the recess 15 with the outside world.
前記ガス抜穴１６は前記電槽１２の成形時に、
該電槽１２を形成するための図示しない上金型及
び下金型とは別に側方から先端に細短かい柱状突
部２２を有する金型２３をその柱状突部２２を前
記上金型の前記凹所１５の形成部に設けた大径の
通孔に挿通して、樹脂を全金型によつて形成され
る空間内に流し込んで硬化させ、夫々の金型を抜
くことによつて簡単に形成できる。 The gas vent hole 16 is formed during molding of the battery case 12.
Separately from an upper mold and a lower mold (not shown) for forming the battery case 12, a mold 23 having a narrow columnar projection 22 at the tip from the side is inserted into the upper mold. The resin is inserted into the large diameter through hole provided in the forming part of the recess 15, poured into the space formed by all the molds, hardened, and easily removed from each mold. can be formed into
尚上述の両実施例において安全弁としては凹所
の楕円断面の円周より少し大きいか等しい又は少
し小さい円周を持つ円筒状チユーブを用いること
が可能である。また凹所は断面楕円形状に限ら
ず、角型でも良い。 In both of the embodiments described above, it is possible to use a cylindrical tube having a circumference slightly larger than, equal to, or slightly smaller than the circumference of the elliptical cross section of the recess. Further, the recess is not limited to an elliptical cross section, but may be square.
(ヘ) 発明の効果
本発明は以上の説明の如く、電槽と電槽蓋より
成る外装ケースの一側に凹所を形成し、該凹所の
内壁に前記電槽内部或いは外界と連通するガス抜
穴を設けると共に、前記凹所に弾性を有する管形
状の安全弁をその両端の切断面部が前記電槽及び
電槽蓋に当接するような方向で収納せしめたもの
であり、安全弁装置部の寸法が小さくても凹所の
構造が従来の如き円筒形状或いは樹脂パイプ等の
ようなものに比べると加工上容易な為作製上の問
題はない。(F) Effects of the Invention As described above, the present invention forms a recess on one side of an exterior case consisting of a battery case and a battery case lid, and communicates with the inside of the battery case or the outside world on the inner wall of the recess. In addition to providing a gas vent hole, an elastic tube-shaped safety valve is housed in the recess in such a direction that the cut surfaces at both ends of the valve come into contact with the battery case and the battery case lid, and the safety valve device part is Even if the size is small, there is no problem in manufacturing because the structure of the recess is easier to process than the conventional cylindrical shape or resin pipe.
また本発明のようにチユーブ状の安全弁の作製
の場合チユーブの肉厚が成形上下限が限定され、
又内径が金型強度の点より限定されるため、外径
は３〜４mm以上必要となり、より大きい方が成形
し易くなる。 In addition, in the case of manufacturing a tube-shaped safety valve as in the present invention, the wall thickness of the tube has a limited upper and lower molding limit.
Also, since the inner diameter is limited due to mold strength, the outer diameter needs to be 3 to 4 mm or more, and the larger the diameter, the easier it is to mold.
本発明では凹所に安全弁を、安全弁の切断面部
と凹所の底面及び電槽蓋とが当接するように挿入
するので鉛蓄電池の厚み方向は安全弁の外径と関
係なく小さく設定できる。この時安全弁の外径は
凹所の幅及び長手方向を大きく取ることで対処す
ることが可能である。 In the present invention, the safety valve is inserted into the recess so that the cut surface of the safety valve contacts the bottom of the recess and the battery case lid, so the thickness direction of the lead acid battery can be set small regardless of the outer diameter of the safety valve. At this time, the outer diameter of the safety valve can be adjusted by increasing the width and length of the recess.
更に円筒状安全弁の成型は、形状が簡単な為安
価で精度良く出来る。 Furthermore, since the cylindrical safety valve has a simple shape, it can be formed at low cost and with high precision.
本発明の他の実施例のように電槽と電槽蓋との
嵌合隙間が一方のガス抜穴を形成する場合は、外
観上側面に穴が開くのを防止できる。また電槽に
形成された切欠溝に安全弁が喰い込み仮止めが安
定する。しかも電槽の発電素体収納凹部と安全弁
収納凹所を連通せるガス抜穴を形成するだけで済
み金型に形成する柱状突部が短かくて済む（長い
場合は折れ易い）利点がある。 When the fitting gap between the battery case and the battery case lid forms one gas vent hole as in other embodiments of the present invention, it is possible to prevent holes from forming on the external side surface. Also, the safety valve bites into the notch groove formed in the battery case, making the temporary fixing stable. Moreover, there is an advantage that it is only necessary to form a gas vent hole that communicates the power generation element storage recess of the battery case with the safety valve storage recess, and the columnar projection formed on the mold can be short (it is easy to break if it is long).
第１図〜第４図は本発明鉛蓄電池の一実施例に
係り、第１図は分解斜視図、第２図は安全弁の斜
視図、第３図は第１図の要部拡大斜視図、第４図
はガス抜穴成形時の平面図、第５図〜第６図は本
発明鉛蓄電池の他の実施例に係り、第５図は分解
斜視図、第６図はガス抜穴成形時の平面図、第７
図〜第９図は従来の鉛蓄電池に係り、第７図イは
安全弁装置の斜視図；ロは安全弁の斜視図；ハは
イの断面図、第８図イは他の安全弁装置の斜視
図；ロは他の安全弁の斜視図；ハはイの断面図、
第９図は第７図及び第８図の安全弁装置を適用し
た鉛蓄電池の電槽斜視図である。
１，１２……電槽、３，１４……電槽蓋、４，
１５……凹所、５，６，１６……ガス抜穴、７…
…安全弁、７ａ，７ｂ……切断面部、７ｃ……周
曲面部。
Figures 1 to 4 relate to an embodiment of the lead-acid battery of the present invention, in which Figure 1 is an exploded perspective view, Figure 2 is a perspective view of a safety valve, Figure 3 is an enlarged perspective view of the main part of Figure 1, Figure 4 is a plan view when forming gas vent holes, Figures 5 and 6 relate to other embodiments of the lead-acid battery of the present invention, Figure 5 is an exploded perspective view, and Figure 6 is when forming gas vent holes. Plan view, No. 7
Figures to Figures 9 relate to conventional lead-acid batteries; Figure 7 (a) is a perspective view of a safety valve device; (b) is a perspective view of a safety valve; (c) is a sectional view of (a); and Figure 8 (a) is a perspective view of another safety valve device. ; B is a perspective view of another safety valve; C is a cross-sectional view of A;
FIG. 9 is a perspective view of a lead-acid battery case to which the safety valve device of FIGS. 7 and 8 is applied. 1,12...Battery container, 3,14...Battery container lid, 4,
15... recess, 5, 6, 16... gas vent hole, 7...
...Safety valve, 7a, 7b... Cutting surface portion, 7c... Circumferential curved surface portion.
Claims (1)
所を形成し、該凹所の内壁に前記電槽内部或いは
外界と連通するガス抜穴を設けると共に、前記凹
所に弾性を有する管形状の安全弁をその両端の切
断面部が前記電槽及び電槽蓋に当接するような方
向で収納せしめたことを特徴とする鉛蓄電池。 ２ 前記安全弁はその周曲面部が前記凹所の内壁
に常時圧接されて成ることを特徴とする上記特許
請求の範囲第１項記載の鉛蓄電池。 ３ 前記凹所と外界とを連通するガス抜き穴は、
前記電槽と電槽蓋との嵌合部分に形成された隙間
によつて形成されることを特徴とする上記特許請
求の範囲第１項又は第２項記載の鉛蓄電池。[Scope of Claims] 1. A recess is formed in one side of an exterior case consisting of a battery case and a battery case lid, and a gas vent hole communicating with the inside of the battery case or the outside world is provided in the inner wall of the recess, and the 1. A lead-acid battery, characterized in that an elastic tube-shaped safety valve is housed in a recess in such a direction that the cut surfaces at both ends of the valve come into contact with the battery case and the battery case lid. 2. The lead-acid battery according to claim 1, wherein the safety valve has a circumferentially curved surface portion that is constantly pressed against the inner wall of the recess. 3. The gas vent hole that communicates the recess with the outside world is
The lead-acid battery according to claim 1 or 2, wherein the lead-acid battery is formed by a gap formed at a fitting portion between the battery case and the battery case lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59061950A JPS60205961A (en) | 1984-03-28 | 1984-03-28 | Lead storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59061950A JPS60205961A (en) | 1984-03-28 | 1984-03-28 | Lead storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60205961A JPS60205961A (en) | 1985-10-17 |
| JPH0379822B2 true JPH0379822B2 (en) | 1991-12-20 |
Family
ID=13185983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59061950A Granted JPS60205961A (en) | 1984-03-28 | 1984-03-28 | Lead storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60205961A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4415Y1 (en) * | 1966-12-16 | 1969-01-06 |
-
1984
- 1984-03-28 JP JP59061950A patent/JPS60205961A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4415Y1 (en) * | 1966-12-16 | 1969-01-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60205961A (en) | 1985-10-17 |
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