JP4439258B2 - Battery case for storage battery - Google Patents
Battery case for storage battery Download PDFInfo
- Publication number
- JP4439258B2 JP4439258B2 JP2003429962A JP2003429962A JP4439258B2 JP 4439258 B2 JP4439258 B2 JP 4439258B2 JP 2003429962 A JP2003429962 A JP 2003429962A JP 2003429962 A JP2003429962 A JP 2003429962A JP 4439258 B2 JP4439258 B2 JP 4439258B2
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- JP
- Japan
- Prior art keywords
- battery
- battery case
- ribs
- short side
- strength
- 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.)
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- 238000005452 bending Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 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)
Description
本発明は、側面壁の強度を向上させた蓄電池用電槽に関するものである。 The present invention relates to a battery container storage battery with improved strength of the side surface walls.
蓄電池用電槽はポリプロピレン等の合成樹脂を成形することで製造され、開放する上面より極板群や電解液を収納し、蓋を施して蓄電池として使用されるものであるが、該蓄電池の使用中に電槽側面が膨出する傾向がある。この現象は、例えば１個の電槽の内部を隔壁で多数のセル室に区画形成したモノブロック式電槽においては、比較的幅が広くなる短側面に見られ、これを抑制するには側面の強度を向上させる方法がある。この側面の強度を向上させるには、電槽の側面の厚みを厚くする方法の他に、側面に縦方向リブや縦横方向に格子目状にリブを形成すること（特許文献１）や補強板を設けること（特許文献２）などが行われている。 The container storage battery is manufactured by molding a synthetic resin such as polypropylene, accommodating the electrode plate group and the electrolyte solution from the upper surface to open, but is used as a storage battery by performing a lid, storage battery There is a tendency that the battery case side bulges during use. This phenomenon is seen on a short side surface that is relatively wide in a monoblock type battery case in which a single battery case is partitioned into a large number of cell chambers. There is a method for improving the strength of the steel. In order to improve the strength of the side surface, in addition to the method of increasing the thickness of the side surface of the battery case, longitudinal ribs are formed on the side surface and ribs are formed in a lattice shape in the longitudinal and lateral directions (Patent Document 1) and a reinforcing plate (Patent document 2) etc. are performed.
上記従来の方法により、電槽の側面の強度を向上させることが出来る。しかしながら、それぞれ一長一短があり、側面の厚みを厚くすることは、その厚みにより如何様にも強度を向上し得るが、電槽外形が大きくなったり、使用する樹脂量が多くなったりする問題がある。縦方向のリブのみを形成する方法は、それなりに強度の向上を図れるが、その膨出抑制力がやや不足し、近年の様に高容量化のために多くの活物質を極板に充填しこれを電槽内収納することが行われており更なる強度の向上が望まれている。格子目状のリブの形成は縦リブのみよりは高い強度の向上が図られるが、電槽の成形において比較的簡単に成形することが出来る抜き型と言われる成形金型を用いることが出来ず高価となる等の問題がある。また補強板を設けることは別部品を必要とすると共にその取付作業が煩わしい等の問題がある。 The strength of the side surface of the battery case can be improved by the conventional method. However, there are advantages and disadvantages, increasing the thickness of the side, but can improve the strength in any manner by the thickness, or increases the battery container contour, or Tsu of many resin amount to use problem There is. The method of forming only the ribs in the vertical direction can improve the strength as it is, but its bulge-inhibiting force is somewhat insufficient, and as in recent years, many active materials are filled into the electrode plate to increase the capacity. This is stored in the battery case, and further improvement in strength is desired. The formation of lattice-shaped ribs can improve the strength higher than that of vertical ribs alone, but it is not possible to use a molding die called a die that can be molded relatively easily in the molding of battery cases. There are problems such as being expensive. In addition, the provision of the reinforcing plate has problems such as requiring separate parts and troublesome installation work.
本発明は、これらの課題を解決すべくなされたもので、合成樹脂製の蓄電池用電槽の極板積層面と平行な側面壁を屈曲させて該側面壁から外側へ張り出た凹状部を該側面壁の中央部に電槽の上下方向にわたって形成すると共に、該凹状部内に縦リブを形成したものである。 The present invention has been made in order to solve these problems, and a concave portion projecting outward from the side wall by bending a side wall parallel to the electrode plate lamination surface of the synthetic resin battery case. the central portion of the side wall so as to form over the vertical battery container is obtained by forming longitudinal ribs on the concave portion.
このことにより、成形金型として抜き型を用いることが出来ると共に、縦リブのみを形成した場合に比し短側面の強度の向上を図ることが出来た。 As a result, a punching die can be used as the molding die, and the strength of the short side surface can be improved as compared with the case where only the vertical rib is formed.
本発明により、蓄電池用電槽を簡単に成形出来ると共に、その側面の強度を向上し得る等の効果を奏するものである。 The present invention, in co-if can be easily molded battery container for storage batteries, in which the effect of such may improve the strength of its sides.
図１は一実施形態を示す蓄電池用電槽の部分斜視図、図２はそのＡ−Ａ線に沿って切断した部分断面図である。
図示される通り、電槽１は、短側面１ａと長側面１ｂおよび底面からなる有底の上面開放した方形箱状体からなり、その短側面1ａに側面壁を屈曲させて該側面壁から外側へ張り出た凹状部２を形成した。図示の例では該凹状部２を２つ形成した。そして、該凹状部２は電槽１の上下方向に形成した。
Figure 1 is a partial perspective view of the electric storage battery showing one embodiment vessel, a 2 partial cross-sectional view taken along the line A-A.
As shown in the figure, the battery case 1 is formed of a rectangular box-like body having a bottomed upper surface consisting of a short side surface 1a, a long side surface 1b, and a bottom surface, and the side wall is bent to the short side surface 1a to be outside the side wall. A concave portion 2 protruding to the top was formed. In the illustrated example, two concave portions 2 are formed. And this concave-shaped part 2 was formed in the up-down direction of the battery case 1. FIG.
該凹状部２には上下方向にリブ３を各々２本形成した。これら凹状部２やリブ３は電槽１の成形時に一体に成形されるが、短側面１ａには左右方向に突起部がないので、従来と同様に電槽１の上部の突起部１ｃを境に上下方向への抜き型により簡単に成形し得る。 Two ribs 3 were formed in the concave portion 2 in the vertical direction. These concave portions 2 and the ribs 3 are formed integrally during the molding of the container 1, since the short side surface 1a has no projections in the lateral direction, a boundary projecting portion 1c of the conventional as well as the upper part of the battery case 1 Further, it can be easily formed by a vertical die.
蓄電池用電槽として上記形状の電槽を用い、隔壁１ｄにより内部を６つのセル室４に区画形成した電槽をポリプロピレン樹脂により成形した。電槽の大きさは、高さ約２０４ｍｍ，幅１７３ｍｍ，長さ２６０ｍｍで、短側面１ａおよび長側面１ｄとの厚みは、短側面を４ｍｍ、長側面を３ｍｍとした。 The battery case having the above shape was used as the battery case, and a battery case in which the inside was divided into six cell chambers 4 by the partition 1d was molded from polypropylene resin. The size of the battery case was about 204 mm in height, 173 mm in width, and 260 mm in length. The thickness of the short side surface 1a and the long side surface 1d was 4 mm on the short side surface and 3 mm on the long side surface.
なお、隔壁１ｄの厚みは１．４ｍｍである。１ｅは短側面１ａの内面や隔壁１ｄに設けた小突条である。 The partition wall 1d has a thickness of 1.4 mm . 1e is a small collision Article provided on the inner surface and the partition wall 1d of the short side surface 1a.
電槽１の短側面１ａの高さ方向に該短側面１ａを断面コ字状に９０度ずつ屈曲して、ほぼ該短側面を幅方向に３等分する位置に凹状部２を２つ設けた。該短側面１ａは、端部のセル室４ａの上面のセル幅を大きくすることで結果的に短側面１ａがセル室４内に張り出すようにして形成して上部の短側面壁内面と屈曲した凹状部２の内側面が同一面となるようにした。 By bending in the height direction on the short side surface 1a of the short side surface 1a of the container 1 by 90 degrees cross-section U-shaped, two concave portions 2 substantially said short sides 3 equal parts positioned in the width direction Provided. The short side 1a includes a short-side face wall inner surface of the upper consequently short side surface 1a by increasing the cell width of the top of the cell chamber 4a of the end portion are formed as overhangs the cell chamber 4 the inner surface of the bent concave portion 2 is so ing the same plane.
該凹状部２は電槽上部の外側全周に形成した突起部１ｃの下部より電槽下端に至り形成し、その幅は２２ｍｍ、凹部深さ３ｍｍで、その内部に２本のリブ３を形成した。このリブ３の肉厚は２ｍｍである。 The concave part 2 is formed from the lower part of the protruding part 1c formed on the entire outer periphery of the upper part of the battery case to reach the lower end of the battery case. did. The thickness of the rib 3 is 2 mm.
蓄電池用電槽として凹状部２を短側面２の幅方向の中央に１つ形成した以外は実施例１と同様の電槽を作製した。 Except for one a concave portion 2 at the center in the width direction of the short side 2 as the container for storage batteries were created made the same battery container as in Example 1.
比較例１として蓄電池用電槽の短側面の外側に肉厚２ｍｍのリブ１６本を電槽の高さ方向に形成したもの、比較例２として短側面の外側に同様のリブを幅方向に１６本形成したもの、比較例３として短側面の外側に同様のリブを高さと幅の両方向に格子目状に形成したもの（リブの肉厚、本数は上記縦及び横リブに同じ）を作製した。 As Comparative Example 1, 16 ribs having a thickness of 2 mm are formed on the outside of the short side surface of the battery case in the height direction of the battery case, and as Comparative Example 2 , similar ribs are formed on the outside of the short side surface in the width direction. those present form, obtained by forming the similar ribs on the outside of the short side as Comparative example 3 in height and grid network-like in both the width (thickness of the ribs, the number is the vertical 及 beauty Yokori blanking the same) It was made of work.
従来例１として蓄電池用電槽の短側面にリブ等を全く形成しない平坦面としたものを作製した。 A material obtained by the conventional example 1, and a flat surface that does not form any ribs or the like on the short side of the storage battery for electric tank was created made.
これら作製した各蓄電池用電槽に蓋を融着して密封し、該蓋にパイプを気密に貫通しパイプ内を通して電槽内の全セル室内に空気を送り０．８ｋｇｆ／ｃｍ ２ で加圧した。
加圧による短側面の変形量（最大の膨出寸法；ｍｍ）を測定した結果を表１に示す。
And sealed by fusing the cover to the battery container for each and these work made battery sends air to all cells chamber in the container through the pipe through the pipe to hermetically lid 0.8 k gf / cm 2 Was pressurized.
Deformation amount of the short sides that by the pressure (maximum swollen dimension; mm) The results of measurement are shown in Table 1.
この表１からも明らかな通り、本発明電槽を用いたものは、比較例１〜３として示した、縦リブや横リブあるいは格子目状リブを形成したものや従来例として示したリブの無い平坦なものよりも変形量の少ない電槽が得られ、強度が向上した電槽が得られた。
なお、上記実施例では屈曲の角度を９０度とした。この場合が最も良く、角度を８０、７０度等に小さくすると膨出寸法が大きい、即ち強度は小さくなる傾向があり、８０〜９０度が好ましい。また、凹状部は上記実施例に記載の大きさの電槽では２つが一番良く、３つ形成すると１つの場合より膨出寸法は若干大きくなった。
As is apparent from Table 1, those using the battery case of the present invention are those shown as Comparative Examples 1 to 3 , in which vertical ribs, horizontal ribs or lattice- like ribs are formed, or ribs shown as conventional examples. A battery case having a smaller amount of deformation than a flat one having no strength was obtained, and a battery case having improved strength was obtained.
In the above embodiment, the bending angle is 90 degrees. This case is the best . When the angle is reduced to 80, 70 degrees or the like, the bulge size tends to increase, that is, the strength tends to decrease, and 80 to 90 degrees is preferable. Further, the number of the concave portions is best in the battery case of the size described in the above embodiment, and when three are formed, the bulging dimension is slightly larger than in the case of one.
１ 電槽
１ａ 短側面
２ 凹状部
３ リブ
1 Battery case 1a Short side 2 Recess 3 Rib
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003429962A JP4439258B2 (en) | 2003-12-25 | 2003-12-25 | Battery case for storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003429962A JP4439258B2 (en) | 2003-12-25 | 2003-12-25 | Battery case for storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005190796A JP2005190796A (en) | 2005-07-14 |
| JP4439258B2 true JP4439258B2 (en) | 2010-03-24 |
Family
ID=34788475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003429962A Expired - Lifetime JP4439258B2 (en) | 2003-12-25 | 2003-12-25 | Battery case for storage battery |
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| Country | Link |
|---|---|
| JP (1) | JP4439258B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018201660A1 (en) * | 2018-02-05 | 2019-08-08 | Volkswagen Aktiengesellschaft | Battery module with a stack of battery single cells |
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2003
- 2003-12-25 JP JP2003429962A patent/JP4439258B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005190796A (en) | 2005-07-14 |
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