JP2002246003A - Connection member for battery - Google Patents
Connection member for batteryInfo
- Publication number
- JP2002246003A JP2002246003A JP2001045180A JP2001045180A JP2002246003A JP 2002246003 A JP2002246003 A JP 2002246003A JP 2001045180 A JP2001045180 A JP 2001045180A JP 2001045180 A JP2001045180 A JP 2001045180A JP 2002246003 A JP2002246003 A JP 2002246003A
- Authority
- JP
- Japan
- Prior art keywords
- connection
- cell
- connecting member
- cells
- 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
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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電池用接続部材に関
し、さらに詳しくは、複数個の円筒型単電池をその半径
方向に並置して直列接続することにより所用の出力電圧
を得る蓄電池モジュールを形成するための接続部材に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery connecting member, and more particularly, to a battery module for obtaining a desired output voltage by connecting a plurality of cylindrical cells in series in a radial direction and connecting them in series. To a connection member for performing the connection.
【０００２】[0002]
【従来の技術】近年、各種の電動工具や電動アシスト自
転車、さらには、電気自動車などの駆動源として、複数
個の単電池を直列に接続してなる接続構造体が利用され
ている。この接続構造体を形成する場合には、例えば、
単電池を互いに逆向きにした状態で２個以上半径方向に
並置し、単電池間を接続部材で接続する。そのときに用
いる接続部材としては、各種のものが提案されている
が、２個ずつの単電池を確実に接続でき、しかも、簡単
な構造を有するものであることが好ましい。2. Description of the Related Art In recent years, a connection structure formed by connecting a plurality of unit cells in series has been used as a drive source for various electric tools, electric assist bicycles, and electric vehicles. When forming this connection structure, for example,
Two or more cells are radially juxtaposed in a state in which they are opposite to each other, and the cells are connected by a connecting member. Various types of connection members have been proposed for use at that time, but it is preferable that the connection members have a simple structure that can reliably connect two single cells at a time.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、単電池をそ
の半径方向に並置して、互いに直列に接続する際に使用
され、簡単な構造で容易に製造することができ、しか
も、隣接する単電池同士を確実に接続することが可能な
電池用接続部材を提供することを目的とする。SUMMARY OF THE INVENTION The present invention is used for connecting cells in series in the radial direction and connecting them in series with each other. It is an object of the present invention to provide a battery connecting member capable of reliably connecting cells.
【０００４】[0004]
【課題を解決するための手段】本発明者らは上記目的を
達成するために、種々検討を重ねた結果、各単電池の端
子部と接続部材との接触面積をできるだけ大きくとって
両者間の接続状態を確実にするために、接続部材として
備えるべき要件は、全体として１枚の板状体であり、こ
れらの端子部とほぼ同一形状すなわち円形に近い２箇所
の接続部を有し、それらの接続部を連結した構造である
ことを着想し、本発明を完成するに至った。Means for Solving the Problems The inventors of the present invention have conducted various studies in order to achieve the above object. In order to ensure the connection state, the requirement to be provided as a connection member is a single plate-like body as a whole, having two connection portions having substantially the same shape as these terminal portions, that is, a circular shape. The present invention has been completed based on the idea of a structure in which the connecting portions are connected.
【０００５】すなわち、本発明の電池用接続部材は、円
筒型単電池を互いに逆向きにした状態で半径方向に２個
並置して両者を直列に接続する際に使用される接続部材
であって、この接続部材は１枚の板状体であり、一方の
単電池の底部に当接する平面状の第１の接続部と、この
第１の接続部から延出され、他方の単電池の正極端子が
突出可能な開口を有するとともに、前記他方の単電池の
封口板に当接する環状の凹部もしくは前記第１の接続部
と段差をもって形成された平面部を有する第２の接続部
とからなるものである。[0005] That is, the battery connecting member of the present invention is a connecting member used when two cylindrical cells are arranged in the radial direction in a state of being opposite to each other and are connected in series. The connecting member is a single plate-like body, and has a planar first connecting portion abutting on the bottom of one of the cells, and a positive electrode of the other cell extending from the first connecting portion. A terminal having an opening through which the terminal can protrude, and comprising an annular concave portion or the first connection portion abutting on the sealing plate of the other unit cell and a second connection portion having a flat portion formed with a step. It is.
【０００６】[0006]
【発明の実施の形態】以下、図面を参照しながら本発明
の電池用接続部材の構成について説明する。図１，２は
本発明の接続部材の一実施形態を示し、接続部材９は図
示のように左右に２つの接続部、すなわち第１の接続部
９ａと第２の接続部９ｂとを同幅の中間部９ｃで連結し
た形状に形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a battery connecting member of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the connecting member of the present invention. As shown in the drawing, a connecting member 9 has two connecting portions on the left and right, that is, a first connecting portion 9a and a second connecting portion 9b having the same width. Are formed in a shape connected by an intermediate portion 9c.
【０００７】第１の接続部９ａは平面状に形成され、単
電池の底部の形状すなわち円形に対応して周方向に沿っ
て等間隔に複数個例えば４個の切欠き穴１０と、この切
欠き穴１０の各々を挟んで両側に一対のプロジェクショ
ン溶接用の突起１１，１１が形成されている。切欠き穴
１０はプロジェクション溶接時に無効電流を低減するた
めのものである。この第１の接続部９ａは後述する図
４，５に示すように一方の単電池１の金属ケース底部２
ａに当接し、そこに溶接される。The first connecting portion 9a is formed in a planar shape, and a plurality of, for example, four notches 10 are formed at regular intervals along the circumferential direction corresponding to the shape of the bottom of the cell, that is, a circle. A pair of projection welding projections 11 are formed on both sides of each of the notch holes 10. The notch 10 is for reducing a reactive current at the time of projection welding. As shown in FIGS. 4 and 5 described later, the first connection portion 9a is connected to the metal case bottom 2 of one of the cells 1.
a and is welded there.
【０００８】第２の接続部９ｂは上記の第１の接続部９
ａから中間部９ｃを経て延出形成されていて、後述する
図４，５に示すように他方の単電池１の一端部の封口板
３に当接する環状の凹部１２が形成されている。この環
状凹部１２の中心には、単電池１の正極端子６との接触
を回避するための開口１３が形成され、この開口１３か
ら正極端子６が突出できるようになっている（図５）。
そして、環状凹部１２の底面１２ａにも、上記と同様に
無効電流を低減するための切欠き穴１４と、この切欠き
穴１４の各々を挟んだ位置に一対のプロジェクション溶
接用の突起１５，１５が形成されている。The second connecting portion 9b is connected to the first connecting portion 9 described above.
4A and 5A, which will be described later, an annular recess 12 is formed to abut on the sealing plate 3 at one end of the other unit cell 1. As shown in FIG. An opening 13 is formed at the center of the annular concave portion 12 to avoid contact with the positive electrode terminal 6 of the unit cell 1, and the positive electrode terminal 6 can protrude from the opening 13 (FIG. 5).
Similarly, a notch 14 for reducing the reactive current and a pair of projection welding projections 15, 15 at positions sandwiching each of the notches 14 are formed on the bottom surface 12 a of the annular recess 12. Are formed.
【０００９】これらのプロジェクション溶接用の突起１
１，１５の形成方法はとくに限定されるものではない
が、例えば図３に示すように接続部材９をプレス成形加
工により製造する際に、同時に形成すると工程的な観点
からも簡便である。すなわち、突起１５について説明す
ると、環状凹部１２の底面１２ａから所定の高さＴだけ
突出するように成形加工すればよい。この高さＴは、例
えば接続部材９の板厚の0.5〜1.0倍程度に設定すること
が好ましい。[0009] These projections 1 for projection welding.
The method for forming the first and the first 15 is not particularly limited. For example, as shown in FIG. 3, when the connecting member 9 is manufactured by press molding as shown in FIG. That is, to explain the projections 15, it is sufficient that the protrusions 15 are formed so as to project from the bottom surface 12a of the annular concave portion 12 by a predetermined height T. The height T is preferably set to, for example, about 0.5 to 1.0 times the thickness of the connection member 9.
【００１０】図４，５は単電池１、例えば円筒型ニッケ
ル・水素二次電池を半径方向に２個並置して接続部材９
により直列に接続した状態を示す斜視図および概念的断
面図である。図５に示すように、単電池１は有底円筒状
の金属ケース２内に、正極とセパレータと負極とを積層
して渦巻状に巻回することにより作製された電極群（図
示せず）が収容されている。負極はこの電極群の最外周
に配置されて金属ケース２と電気的に接触している。つ
まり、この場合金属ケース２の一端面に露出した底部２
ａは負極端子も兼ねている。なお、アルカリ電解液は金
属ケース２内に注入されている。FIGS. 4 and 5 show a connection member 9 in which two unit cells 1, for example, cylindrical nickel-metal hydride secondary cells are juxtaposed in the radial direction.
3A and 3B are a perspective view and a conceptual cross-sectional view showing a state in which they are connected in series. As shown in FIG. 5, the cell 1 is an electrode group (not shown) formed by stacking a positive electrode, a separator, and a negative electrode in a cylindrical metal case 2 with a bottom and spirally winding the same. Is housed. The negative electrode is arranged at the outermost periphery of this electrode group and is in electrical contact with the metal case 2. That is, in this case, the bottom 2 exposed at one end face of the metal case 2
“a” also serves as a negative electrode terminal. Note that the alkaline electrolyte is injected into the metal case 2.
【００１１】そして、金属ケース２の一端の開口には中
央に穴３ａを有する円形の封口板３が配置されている。
封口板３の周縁と金属ケース２の上部開口部内面との間
には、リング状の絶縁性ガスケット４が配置され、この
上部開口部を内側に縮径するカシメ加工により金属ケー
ス２に封口板３をガスケット４を介して気密に固定して
いる。A circular sealing plate 3 having a hole 3a at the center is disposed at an opening at one end of the metal case 2.
A ring-shaped insulating gasket 4 is arranged between the peripheral edge of the sealing plate 3 and the inner surface of the upper opening of the metal case 2. The sealing plate is attached to the metal case 2 by caulking to reduce the diameter of the upper opening inward. 3 is hermetically fixed via a gasket 4.
【００１２】正極リード５は、その一端が前記正極（図
示せず）に、他端が封口板３の下面に接続されている。
すなわち、封口板３自身も正極端子を兼ねている。帽子
形状の正極端子６は、封口板３上に穴３ａを覆うように
取り付けられている。ゴム製の安全弁７は、封口板３と
正極端子６で囲まれた空間内に穴３ａを閉塞するように
配置されている。なお、金属ケース２の外周面は絶縁チ
ューブ８により被覆され、この絶縁チューブ８の開放端
部８ａは金属ケース２の上部開口の先端屈曲部２ｂに密
着してこれとともに内側に屈曲されている。The positive electrode lead 5 has one end connected to the positive electrode (not shown) and the other end connected to the lower surface of the sealing plate 3.
That is, the sealing plate 3 itself also serves as the positive electrode terminal. The hat-shaped positive electrode terminal 6 is mounted on the sealing plate 3 so as to cover the hole 3a. The rubber safety valve 7 is arranged so as to close the hole 3 a in a space surrounded by the sealing plate 3 and the positive electrode terminal 6. The outer peripheral surface of the metal case 2 is covered with an insulating tube 8, and the open end 8 a of the insulating tube 8 is in close contact with the bent end portion 2 b of the upper opening of the metal case 2 and is bent inward together therewith.
【００１３】このような単電池１を２個並置して接続す
る場合は、図４，５に示すように一方の単電池１の一端
面の正極端子６の上面と、他方の単電池１の他端面の負
極端子を兼ねる金属ケース２の露出した底部２ａとがほ
ぼ面一となるようにその側周面同士を密着させて隣接配
置し、両者の間に接続部材９を配置し、この接続部材９
の各接続部９ａ，９ｂと各単電池１，１とをそれぞれ溶
接して電気的に接続した構成とする。When two such cells 1 are connected side by side, as shown in FIGS. 4 and 5, the upper surface of the positive electrode terminal 6 at one end of one cell 1 and the other cell 1 are connected to each other. The outer peripheral surfaces of the metal case 2 also serving as the negative electrode terminal on the other end face are closely adjacent to each other so as to be substantially flush with the exposed bottom portion 2a, and a connecting member 9 is disposed between the two. Member 9
Each of the connection portions 9a and 9b and each of the unit cells 1 and 1 are welded and electrically connected.
【００１４】具体的には、上述したように一方の単電池
１の金属ケース底部２ａと他方の単電池１の絶縁チュー
ブ８の屈曲面上部８ａとが面一となるように外周面を密
着させて配置し、第１の接続部９ａを金属ケース底部２
ａに当接させるとともに、第２の接続部９ｂの環状凹部
１２の底面１２ａを封口板３に当接させ、それぞれ加圧
しながら溶接電流を流す。それによって突起１１，１
１，１５，１５が溶融し、接続部材９の第１の接続部９
ａが溶接部１６（２箇所のみ図示）で溶着し、第２の接
続部９ｂが溶着部１７（２箇所のみ図示）でそれぞれ溶
着する。More specifically, as described above, the outer peripheral surfaces are brought into close contact with each other so that the metal case bottom portion 2a of one cell 1 and the bent surface upper portion 8a of the insulating tube 8 of the other cell 1 are flush with each other. And the first connecting portion 9a is connected to the metal case bottom 2
a, and the bottom surface 12a of the annular concave portion 12 of the second connection portion 9b is brought into contact with the sealing plate 3, and a welding current is applied while pressurizing each. As a result, the projections 11, 1
1, 15, 15 are melted, and the first connecting portion 9 of the connecting member 9 is melted.
a is welded at the welded portion 16 (only two locations are shown), and the second connection portion 9b is welded at the welded portion 17 (only two locations are shown).
【００１５】図６，７はこの接続部材９を使用して３個
以上の単電池を直列に接続した構造体を示す。なお、図
中上記の図１〜５と同一の構成要素には同一の符号を付
して示してある。図６は、例えば６個の単電池Ａ〜Ｆを
半径方向に一列に並置して直列に接続した接続構造体１
８を示したものである。この接続構造体１８は、単電池
Ａと、単電池Ｆとの間を５個の接続部材９により連結
し、単電池Ａの負極すなわち金属ケース２の底部２ａ
と、単電池Ｆの正極端子を兼ねる封口板３との間を直列
に接続したものである。具体的には、単電池Ａの封口板
３すなわち正極と単電池Ｂの金属ケース２すなわち負極
とが接続され、単電池Ｂの封口板３と単電池Ｃの金属ケ
ース２とが接続されるというように、順次隣接する２個
の単電池の異なる端子部間が接続されている。なお、こ
のような接続構造体１８は、最終的にその外周全体がフ
ィルムで被覆されるため、接続部材９による接続部の剛
性は上記の溶接接続で全く問題はない。FIGS. 6 and 7 show a structure in which three or more unit cells are connected in series using the connecting member 9. In the drawings, the same components as those in FIGS. 1 to 5 are denoted by the same reference numerals. FIG. 6 shows a connection structure 1 in which, for example, six unit cells A to F are juxtaposed in a line in the radial direction and connected in series.
8 is shown. The connection structure 18 connects the unit cell A and the unit cell F with five connecting members 9, and forms the negative electrode of the unit cell A, that is, the bottom 2 a of the metal case 2.
And a sealing plate 3 also serving as a positive electrode terminal of the unit cell F, which is connected in series. Specifically, the sealing plate 3 of the unit cell A, that is, the positive electrode, and the metal case 2 of the unit cell B, that is, the negative electrode are connected, and the sealing plate 3 of the unit cell B and the metal case 2 of the unit cell C are connected. As described above, different terminal portions of two adjacent unit cells are sequentially connected. Since the entire outer periphery of such a connection structure 18 is finally covered with the film, the rigidity of the connection portion by the connection member 9 does not cause any problem in the above-described welding connection.
【００１６】図７は複数の単電池の接続構造体の他の例
を示したものであり、例えば、電動工具などの駆動用電
源に適した接続構造体１９を示す。すなわち、例えば６
個の単電池Ｇ〜Ｌを隣接する単電池同士が密着するよう
にして環状に配置し、上記の接続構造体と同様にして接
続部材９により正極と負極とが交互に接続されている。
この場合、構造体１９の中心に空洞２０が形成され、こ
の空洞２０により冷却効果が発現されるので好ましい。FIG. 7 shows another example of a connection structure of a plurality of unit cells. For example, a connection structure 19 suitable for a driving power source such as an electric tool is shown. That is, for example, 6
The unit cells G to L are arranged in a ring shape so that the adjacent unit cells are in close contact with each other, and the positive electrode and the negative electrode are alternately connected by the connecting member 9 in the same manner as in the above-described connection structure.
In this case, a cavity 20 is formed at the center of the structure 19, and the cooling effect is exhibited by the cavity 20, which is preferable.
【００１７】図８，９は本発明の電池用接続部材の他の
態様を示すものであり、図３，４に示した接続部材９を
さらに簡単な構造にしたものである。すなわち、この接
続部材２１も同様に第１の接続部２１ａ、第２の接続部
２１ｂ、ならびに両者を連結する中間部２１ｃから構成
されているが、第２の接続部２１ｂは上記の接続部材９
のように環状の凹部１２が形成されているのではなく、
図８，９に示すように、中間部２１ｃから所定の高さ、
すなわち、一方の単電池の金属ケース２と他方の単電池
の封口板の高低差に相当する段差２１ｄが形成され、段
差２１ｄから続く平面状の第２の接続部２１ｂには上記
と同様に正極端子６を突出させるための開口２２が形成
されている。FIGS. 8 and 9 show another embodiment of the battery connecting member of the present invention, which is a simpler structure of the connecting member 9 shown in FIGS. That is, the connecting member 21 is also composed of a first connecting portion 21a, a second connecting portion 21b, and an intermediate portion 21c for connecting the two, but the second connecting portion 21b is connected to the connecting member 9 described above.
Instead of the annular concave portion 12 being formed,
As shown in FIGS. 8 and 9, a predetermined height from the intermediate portion 21c,
That is, a step 21d corresponding to the height difference between the metal case 2 of one cell and the sealing plate of the other cell is formed, and the flat second connecting portion 21b following the step 21d has a positive electrode as described above. An opening 22 for projecting the terminal 6 is formed.
【００１８】また、この接続部材２１の各接続部２１
ａ，２１ｂにも上記と同様に切欠き穴２３，２４および
各切欠き穴２３，２４を挟む一対のプロジェクション溶
接用の突起が２５，２５および２６，２６がそれぞれ形
成されている。このような構成とすることにより、上記
の接続部材９よりもさらに簡単なプレス成形加工で製造
することができ、製造コストを低減する上でも有利であ
る。Each connecting portion 21 of the connecting member 21
Similarly to the above, cutout holes 23, 24 and a pair of projection welding projections 25, 25, 26, 26 sandwiching each cutout hole 23, 24 are formed on a, 21b. With such a configuration, the connection member 9 can be manufactured by a simpler press forming process than the connection member 9 described above, which is advantageous in reducing the manufacturing cost.
【００１９】このような接続部材２１を使用して単電池
１，１を接続した構造を図１０，１１に示す。なお、図
中、図１，２と同一の構成要素には同一の符号を付して
示してある。さらに、図１１においては、２個の単電池
１，１の接続箇所のみを示し、他端部は省略した。すな
わち、上記と同様に一方の単電池１の金属ケース底部２
ａと他方の単電池１の絶縁チューブ８の屈曲面上部８ａ
とが面一となるように隣接配置し、第１の接続部２１ａ
を金属ケース底部２ａに当接させるとともに第２の接続
部２１ｂの平面部を封口板３に当接させ、それぞれ加圧
しながら溶接電流を流す。それによって突起２５，２５
および２６，２６がそれぞれ溶融し、接続部材２１の第
１、第２の接続部２１ａ，２１ｂが図１０に示す溶接部
２７（２箇所のみ図示），２８（１箇所のみ図示）で溶
着する。FIGS. 10 and 11 show a structure in which the cells 1 and 1 are connected by using such a connecting member 21. FIG. In the drawings, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. Further, in FIG. 11, only the connection point of the two unit cells 1 and 1 is shown, and the other end is omitted. That is, similarly to the above, the metal case bottom 2 of one of the cells 1
a and the upper part 8a of the bent surface of the insulating tube 8 of the other cell 1
And the first connecting portion 21a
Is brought into contact with the metal case bottom portion 2a and the flat portion of the second connection portion 21b is brought into contact with the sealing plate 3, and a welding current is applied while each is pressed. The projections 25, 25
And 26, 26 are melted, respectively, and the first and second connection portions 21a, 21b of the connection member 21 are welded at the welded portions 27 (only two portions are shown) and 28 (only one portion is shown) shown in FIG.
【００２０】図１２，１３は上記の接続部材９，２１の
さらに好ましい態様を示し、各々の柔軟性を向上させた
構成である。なお、図中、図３，８と同一の構成要素に
は同一の符号を付して示してある。具体的には各々の接
続部材９，２１の中間部９ｃ，２１ｃに単電池の並置方
向と直交する微少な間隙のスリット２９，３０を形成し
たものである。このスリット２９，３０は少なくとも１
箇所に形成されればよいが、図示したように、各々の接
続部材９，２１の中間部９ｃ，２１ｃの両縁から交互に
中心に向かって複数本形成することによりいっそう柔軟
性の向上効果が増大するので好ましい。FIGS. 12 and 13 show further preferred embodiments of the connection members 9 and 21 described above, each of which has improved flexibility. In the drawings, the same components as those in FIGS. 3 and 8 are denoted by the same reference numerals. More specifically, slits 29 and 30 having minute gaps perpendicular to the juxtaposition direction of the cells are formed in the intermediate portions 9c and 21c of the connection members 9 and 21, respectively. The slits 29 and 30 are at least one
However, as shown in the drawing, a plurality of connecting members 9 and 21 are formed alternately from both edges of the intermediate portions 9c and 21c toward the center, thereby further improving the flexibility. It is preferable because it increases.
【００２１】なお、上記の各接続部材において、第１お
よび第２の接続部に形成される切欠き穴およびプロジェ
クション溶接用突起の形状、個数などは上記の各態様に
限定されるものではなく、単電池の種類、溶接条件など
に応じて適宜決定されることが好ましい。In each of the above connection members, the shape and number of the notch holes and the projections for projection welding formed in the first and second connection portions are not limited to the above embodiments. It is preferable that the temperature is appropriately determined according to the type of the cell, welding conditions, and the like.
【００２２】[0022]
【発明の効果】以上の説明から明らかなように、本発明
の電池用接続部材は、簡単な構造で半径方向に並置され
た単電池を確実に直列接続することが可能であるため、
その工業的価値は極めて大である。As is clear from the above description, the battery connecting member of the present invention can reliably connect the cells arranged in a radial direction in series with a simple structure.
Its industrial value is enormous.
【図１】本発明の電池用接続部材の一実施形態を示す平
面図である。FIG. 1 is a plan view showing one embodiment of a battery connecting member of the present invention.
【図２】図１のII−II線に沿う断面図である。FIG. 2 is a sectional view taken along the line II-II in FIG.
【図３】図１のプロジェクション溶接用突起の部分拡大
図である。FIG. 3 is a partially enlarged view of the projection welding projection of FIG. 1;
【図４】図１の電池用接続部材を使用して２個の単電池
を接続した状態を示す斜視図である。FIG. 4 is a perspective view showing a state where two unit cells are connected using the battery connecting member of FIG. 1;
【図５】図４の概念的断面図である。FIG. 5 is a conceptual sectional view of FIG.
【図６】図１の電池用接続部材を使用して６個の単電池
を直線上に並置して接続した状態を示す斜視図である。FIG. 6 is a perspective view showing a state where six unit cells are connected side by side on a straight line using the battery connecting member of FIG. 1;
【図７】図１の電池用接続部材を使用して６個の単電池
を環状に並置して接続した状態を示す斜視図である。FIG. 7 is a perspective view showing a state in which six unit cells are connected side by side in a ring using the battery connecting member of FIG. 1;
【図８】本発明の電池用接続部材の他の実施形態を示す
平面図である。FIG. 8 is a plan view showing another embodiment of the battery connecting member of the present invention.
【図９】図８のIX−IX線に沿う断面図である。9 is a sectional view taken along line IX-IX in FIG.
【図１０】図８の電池用接続部材を使用して２個の単電
池を接続した状態を示す斜視図である。FIG. 10 is a perspective view showing a state where two unit cells are connected using the battery connecting member of FIG. 8;
【図１１】図１０の概念的一部断面図である。FIG. 11 is a conceptual partial sectional view of FIG. 10;
【図１２】図１の電池用接続部材のさらに好適な実施形
態を示す平面図である。FIG. 12 is a plan view showing a further preferred embodiment of the battery connecting member of FIG. 1;
【図１３】図８の電池用接続部材のさらに好適な実施形
態を示す平面図である。FIG. 13 is a plan view showing a further preferred embodiment of the battery connecting member of FIG. 8;
１ 単電池 ２ 金属ケース ３ 封口板（正極端子を兼ねる） ６ 正極端子 ８ 絶縁チューブ 9,21 電池用接続部材 9a,21a 第１の接続部 9b,21b 第２の接続部 9c,21c 中間部 21d 段差部 10,14,23,24 切欠き穴 11,15,25,26 プロジェクション溶接用突起 18,19 接続構造体 20 空洞 29,30 切欠き DESCRIPTION OF SYMBOLS 1 Single battery 2 Metal case 3 Sealing plate (also serving as positive electrode terminal) 6 Positive electrode terminal 8 Insulating tube 9,21 Battery connecting member 9a, 21a First connecting portion 9b, 21b Second connecting portion 9c, 21c Intermediate portion 21d Step 10,14,23,24 Notch hole 11,15,25,26 Projection welding projection 18,19 Connection structure 20 Cavity 29,30 Notch
Claims (4)
で半径方向に２個並置して両者を直列に接続する際に使
用される接続部材であって、この接続部材は１枚の板状
体であり、一方の単電池の底部に当接する平面状の第１
の接続部と、この第１の接続部から延出され、他方の単
電池の正極端子が突出可能な開口を有するとともに、前
記他方の単電池の封口板に当接する環状の凹部もしくは
前記第１の接続部と段差をもって形成された平面部を有
する第２の接続部とからなることを特徴とする電池用接
続部材。1. A connecting member which is used when two cylindrical cells are arranged in the radial direction in a state where they are reversed and connected in series, and the connecting member is a single plate. And a planar first contacting the bottom of one of the cells.
And a ring-shaped recess extending from the first connection portion and having an opening through which the positive electrode terminal of the other cell can protrude and abutting against a sealing plate of the other cell. And a second connecting portion having a flat portion formed with a step.
は前記第２の接続部の凹部もしくは段差をもって形成さ
れた平面部には、プロジェクション溶接用の突起が形成
されている請求項１に記載の電池用接続部材。2. The projection according to claim 1, wherein a projection for projection welding is formed on a flat portion formed with a concave portion or a step of the flat first connection portion and / or the second connection portion. A connection member for a battery according to the above.
は前記第２の接続部の凹部もしくは段差をもって形成さ
れた平面部には、溶接時に発生する無効電流低減用の切
欠き穴が形成されている請求項１または２に記載の電池
用接続部材。3. A notch for reducing a reactive current generated at the time of welding is formed in a concave portion or a flat portion of the planar first connection portion and / or the second connection portion. The connection member for a battery according to claim 1, wherein the connection member is formed.
間部に、前記単電池の並置方向と直交する微少な幅の切
欠きが少なくとも１個形成されている請求項１〜３のい
ずれかに記載の電池用接続部材。4. A notch having a small width orthogonal to the juxtaposition direction of the unit cells is formed at an intermediate portion between the first connection portion and the second connection portion. 4. The connection member for a battery according to any one of 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001045180A JP2002246003A (en) | 2001-02-21 | 2001-02-21 | Connection member for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001045180A JP2002246003A (en) | 2001-02-21 | 2001-02-21 | Connection member for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002246003A true JP2002246003A (en) | 2002-08-30 |
Family
ID=18907025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001045180A Pending JP2002246003A (en) | 2001-02-21 | 2001-02-21 | Connection member for battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002246003A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006121006A1 (en) * | 2005-05-06 | 2006-11-16 | Asahi Glass Company, Limited | Accumulator element |
| WO2007004335A1 (en) * | 2005-07-05 | 2007-01-11 | Matsushita Electric Industrial Co., Ltd. | Inter-battery connection device |
| JP2007189188A (en) * | 2005-12-13 | 2007-07-26 | Matsushita Electric Ind Co Ltd | Capacitor |
| JP2009158445A (en) * | 2007-12-28 | 2009-07-16 | Sanyo Electric Co Ltd | Method of manufacturing battery pack |
| KR100983011B1 (en) | 2008-06-26 | 2010-09-17 | 주식회사 엘지화학 | Electrical Connecting Member for Battery Cell Based on Physical Contact Manner |
| JP2011028871A (en) * | 2009-07-22 | 2011-02-10 | Sanyo Electric Co Ltd | Pack battery |
| US8501340B2 (en) | 2009-02-25 | 2013-08-06 | Samsung Sdi Co., Ltd. | Battery module having a bus bar |
| KR20160087974A (en) * | 2015-01-14 | 2016-07-25 | 삼성에스디아이 주식회사 | Rechargeable battery and pack of the same |
| WO2017008947A1 (en) * | 2015-07-14 | 2017-01-19 | Bayerische Motoren Werke Aktiengesellschaft | Accumulator assembly with an improved welding technique for a cell connector element |
| US10090503B2 (en) | 2008-10-14 | 2018-10-02 | Lg Chem, Ltd. | Connecting member of electrode terminals for preparation of core pack |
| US10333128B2 (en) | 2014-09-04 | 2019-06-25 | Gs Yuasa International Ltd. | Energy storage apparatus and energy storage apparatus checking method |
| WO2020102433A1 (en) * | 2018-11-13 | 2020-05-22 | Rivian Ip Holdings, Llc | Frame for weld location detection in a battery cell pack, vision system and method of welding one or more weld points on a battery |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006313793A (en) * | 2005-05-06 | 2006-11-16 | Asahi Glass Co Ltd | Storage element |
| US7474520B2 (en) | 2005-05-06 | 2009-01-06 | Asahi Glass Company, Limited | Storage device |
| WO2006121006A1 (en) * | 2005-05-06 | 2006-11-16 | Asahi Glass Company, Limited | Accumulator element |
| WO2007004335A1 (en) * | 2005-07-05 | 2007-01-11 | Matsushita Electric Industrial Co., Ltd. | Inter-battery connection device |
| US7776467B2 (en) | 2005-07-05 | 2010-08-17 | Panasonic Corporation | Inter-battery connection device |
| JP2007189188A (en) * | 2005-12-13 | 2007-07-26 | Matsushita Electric Ind Co Ltd | Capacitor |
| JP2009158445A (en) * | 2007-12-28 | 2009-07-16 | Sanyo Electric Co Ltd | Method of manufacturing battery pack |
| KR100983011B1 (en) | 2008-06-26 | 2010-09-17 | 주식회사 엘지화학 | Electrical Connecting Member for Battery Cell Based on Physical Contact Manner |
| US10090503B2 (en) | 2008-10-14 | 2018-10-02 | Lg Chem, Ltd. | Connecting member of electrode terminals for preparation of core pack |
| US8501340B2 (en) | 2009-02-25 | 2013-08-06 | Samsung Sdi Co., Ltd. | Battery module having a bus bar |
| JP2011028871A (en) * | 2009-07-22 | 2011-02-10 | Sanyo Electric Co Ltd | Pack battery |
| US10333128B2 (en) | 2014-09-04 | 2019-06-25 | Gs Yuasa International Ltd. | Energy storage apparatus and energy storage apparatus checking method |
| KR20160087974A (en) * | 2015-01-14 | 2016-07-25 | 삼성에스디아이 주식회사 | Rechargeable battery and pack of the same |
| US11095005B2 (en) | 2015-01-14 | 2021-08-17 | Samsung Sdi Co., Ltd. | Rechargeable battery and pack of the same |
| KR102299244B1 (en) * | 2015-01-14 | 2021-09-07 | 삼성에스디아이 주식회사 | Rechargeable battery and pack of the same |
| WO2017008947A1 (en) * | 2015-07-14 | 2017-01-19 | Bayerische Motoren Werke Aktiengesellschaft | Accumulator assembly with an improved welding technique for a cell connector element |
| US11806813B2 (en) | 2015-07-14 | 2023-11-07 | Bayerische Motoren Werke Aktiengesellschaft | Accumulator assembly with an improved welding technique for a cell connector element |
| WO2020102433A1 (en) * | 2018-11-13 | 2020-05-22 | Rivian Ip Holdings, Llc | Frame for weld location detection in a battery cell pack, vision system and method of welding one or more weld points on a battery |
| CN112912198A (en) * | 2018-11-13 | 2021-06-04 | 瑞伟安知识产权控股有限公司 | Frame for welding position detection in a battery cell stack, vision system and method of welding one or more weld spots on a battery |
| CN112912198B (en) * | 2018-11-13 | 2023-12-01 | 瑞伟安知识产权控股有限公司 | Frame for welding position detection in a battery cell stack, vision system and method of welding one or more welds on a battery |
| US11890705B2 (en) | 2018-11-13 | 2024-02-06 | Rivian Ip Holdings, Llc | Weld location detection in a battery cell pack |
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