JP3636603B2 - Connection plate and connection method of connection plate - Google Patents

Connection plate and connection method of connection plate Download PDF

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Publication number
JP3636603B2
JP3636603B2 JP27581698A JP27581698A JP3636603B2 JP 3636603 B2 JP3636603 B2 JP 3636603B2 JP 27581698 A JP27581698 A JP 27581698A JP 27581698 A JP27581698 A JP 27581698A JP 3636603 B2 JP3636603 B2 JP 3636603B2
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Prior art keywords
welding
connection plate
connection
slit
sides
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JP2000106170A (en
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安 弘 幸 高
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Sanoh Industrial Co Ltd
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Sanoh Industrial Co Ltd
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    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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

Description

【０００１】
【発明の属する技術分野】
本発明は、電池と電池の間を電気的に接続する接続板及び接続板の接続方法に関する。
【０００２】
【従来の技術】
従来の電池同士の接続板としては、図６及び図７に示すようなものが知られている。この接続板１は、ニッケル（Ｎｉ）材、鉄板のニッケルメッキ材、あるいは銅板の両側にニッケル板を接合した（Ｎｉ−Ｃｕ−Ｎｉ）クラッド材等よりなる長方形状の薄板であって、中央部３は、図７に示すように主面部に平行にせり上った段形状とされている。また、接続板１の短辺側の中央からは長辺に平行をなすスリット４が、中央部３に達する位置までそれぞれ形成されている。そして、これらのスリット４の両側には下方へ突出するドーム形状の溶接用ビード５が形成されている。
【０００３】
【発明が解決しようとする課題】
ところで、本来、接続板１の材料は、電気抵抗値の低い材料、例えば銅（Ｃｕ）材が好ましいが、銅材の接続板は、抵抗溶接が困難であるため量産ベースで安定して製造するのが難かしい。
【０００４】
即ち、抵抗溶接の場合、溶接機の電極には銅材が使われており、通常は、その銅材よりも導電率の低い材料同士を接続する。つまり、被溶接体間に大電流を流し、その間の接触抵抗により発生するジュール熱で被溶接体間が発熱し、被溶接体がその融点に達して互いに固着される。ところで、被溶接体の導電性が良好な場合は、被溶接体の抵抗値が小さいため、溶接電流は、被溶接体に流れて溶接部に流れにくくなり、接触抵抗による発熱が不十分となる。したがって、通常は、単に溶接電流を上げて対応する。ところが、そのようにすることによって、溶接電流が大きいために溶接機の電極の温度が高くなり、電極の寿命が短くなって、頻繁に電極を交換する必要が生じる。一方、接続板として単に銅材を用いると、溶接機電極を銅材にした場合、両者が同じ導電率であることから、単純に溶接電流を上げると、両者とも加熱されて電極と被溶接体とが固着してしまう。
【０００５】
上述の理由により、接続体の材質としては、ニッケル（Ｎｉ）材、あるいは非常に高価なニッケル・銅・ニッケル（Ｎｉ−Ｃｕ−Ｎｉ）クラッド材を使用しなければならないという問題があった。
【０００６】
本発明は、このような問題を解決するためになされたもので、抵抗溶接を可能とする銅材より主としてなる接続板及び接続板の接続方法を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記、従来の技術の課題を解決するため、本発明の接続板は、複数の電池同士を電気的に接続する接続板であって、銅材よりなり、長手方向両端から互いに接近するようにスリットが形成され、これらスリットの先端部間が狭い間隔をおいて対向して間隔部が形成されており、スリットを跨ぐ両側に溶接用ビードが形成され、長手方向両端のうちの一方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接触させるとともに溶接機の一対の電極の各々を前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流したときに、前記間隔部は、溶断可能に形成されていることを特徴とする。
また、複数の前記間隔部が形成されていることを特徴とする。また、前記銅材の表面にニッケルメッキが施されていることを特徴とする。また、前記溶接用ビードの高さは、接続板の板厚の０．５〜２倍とされ、その径は板厚の１〜１０倍とされていることを特徴する。
また、本発明の接続板の接続方法は、複数の電池同士を電気的に接続する接続板を溶接機を用いて接続する接続板の接続方法であって、前記接続板は、銅材よりなり、長手方向両端から互いに接近するようにスリットが形成され、これらスリットの先端部間が狭い間隔をおいて対向して間隔部が形成されており、スリットを跨ぐ両側に溶接用ビードが形成されており、スリットの両側の溶接用ビードを接続対象の電池に接触させる工程と、溶接機の一対の電極の各々を長手方向両端のうちの一方の端部寄りのスリットを跨ぐ両側の前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流し、前記一方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接続するとともに前記間隔部を溶断させる工程と、前記一対の電極の各々を長手方向両端のうちの他方の端部寄りのスリットを跨ぐ両側の前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流し、前記他方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接続する工程と、を備えることを特徴とする。
【０００８】
【発明の実施の形態】
以下、本発明の接続板の実施の形態を図１〜図５を参照して説明する。
【０００９】
接続板１０は、銅（Ｃｕ）材よりなる長方形状の薄板であって、曲面状隅角部１１を有している。そして、接続板１０には、厚さ３ないし２０μｍのニッケル（Ｎｉ）メッキが電気メッキあるいは化学メッキにより施されている。また、接続板１０の長手方向中央部１２は、図２に示すように主面部に対し平行にせり上った形状とされている。そして、接続板１０の長手方向両端の中央部から長辺に平行な１対のスリット１３が、例えば中央部１２の中心において板厚の例えば０．５倍の厚さの狭い間隔部１４を保持するように形成されている。なお、スリット１３の位置は接続板１０の幅の中央部でなくてもよく、狭い間隔部１４も中央部１２から外れていてもよい。また、接続板１０の両端寄りには、これらのスリット１３の両側に沿って下方へ突出するドーム形状の溶接用ビード１５が各端の片側で少くとも１箇所（図では２箇所）に形成されている。なお、図３に示すようにビード１５の高さａは、板厚の０．５〜２倍、例えば２倍、そして、径ｂは、板厚の１〜１０倍、例えば５倍とされている。
【００１０】
次に、この接続板１０の電池１６への溶接について図４及び図５を参照して説明する。
【００１１】
先づ、溶接機には短時間に大電流を流すことができる溶接機を使用する。これは、通常の溶接機を用いて銅（Ｃｕ）材を溶接する場合、熱が発生し、溶接を行うことが出来ないからである。そして、溶接電流は１ＫＡ（ｍｉｎ）程度の大電流とする。
【００１２】
溶接に当っては、図６に示す従来の接続板では、銅自体の電気抵抗が低いために電流が溶接用ビードに流れずにスリット４があっても接続板自体に回り込んで流れてしまい、溶接時の無効電流が多くなってしまうので、図１のように深く入り込むスリット１３のある接続板１０を用いる。図１に示す接続板１０の一端を電池１６の極に接触させ、溶接機の電極を接続板１０の一端に当てて大電流（１ＫＡ以上）を短時間（１００ｍｓｅｃ以下）流すと、接続体のスリット１３の片側から他側へ向けて狭い間隔部１４を経てＡで示すように電流が流れ、狭い間隔部１４は発熱して溶断する。これが第１段階である。
【００１３】
次の第２段階では、１対のスリット１３，１３が連続して接続板１０が完全に２つの片に分断されるので、電流の回り込みが無い状態で、溶接用ビード１５のみを経てＢで示すように電流が流れ、抵抗溶接が行われる。なお、前記の狭い間隔部１４は２個所以上設けてもよい。また、その場所は前述のように中央部に限らない。この間隔部１４によって、スリット１３の両側の接続板部分が最初は一体的に連結されているので、接続板１０を電池に接続する直前までは一体的な接続板として扱うことができて便利であるが、一度溶接電流を流すと接続板がスリット１３を挟んで分割されて電流の回り込みを阻止する。
【００１４】
図４に示すようにして、接続板１０の一端を電池１６に接続し終ってから、図５に示すように接続板１０の他端を他の電池１６ａに接続する。この時の溶接電流Ｃも回り込みのない状態で流れ、抵抗溶接は支障なく行われる。
【００１５】
以上のような抵抗溶接の際、ニッケルメッキ層は抵抗溶接を可能にし、しかも主体をなす銅は低い電気抵抗値を与える。そして、ニッケル層は防錆、耐食性を向上させる。また、ニッケルメッキ銅板の接続板は前述のクラッド材に比し安価である。
【００１６】
【発明の効果】
以上説明したように、本発明の接続板は、主として銅材よりなるので安価であり、この銅材にニッケルメッキを施してあり、ニッケルは抵抗溶接時に銅のような問題がないので、溶接機の電極と被溶接体である接続板との固着が防げるとともに、ニッケルは耐食性があるので、銅材の電解液による腐食の危険性がない。
【００１７】
なお、接続板の長手方向両端から中央部に向かい、その先端部間に狭い間隔部をおくように１対のスリットを形成すると、最終溶接時における接続板への電流の回り込みをなくして接続体自体の熱の発生を低くし、溶接用ビードでの熱の発生を効果的に行い、溶接を完全にすることができる。
【００１８】
また、溶接用ビードの高さは接続板の板厚の０．５〜２倍、その径は板厚の１〜１０倍とすることにより溶接時の無効電流が少くなる。
【図面の簡単な説明】
【図１】本発明による接続体の実施の形態を示す底面図。
【図２】図１の側面図。
【図３】溶接用ビードの拡大断面図。
【図４】接続板を第１の電池へ溶接する作用の説明図。
【図５】接続板を他の電池へ溶接する作用の説明図。
【図６】従来の接続板の底面図。
【図７】図６の側面図。
【符号の説明】
１０ 接続板
１１ 曲面状隅角部
１２ 中央部
１３ スリット
１４ 狭い間隔部
１５ ビード
１６ 電池
１６ａ 電池[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection plate for electrically connecting batteries to each other and a method for connecting the connection plates.
[0002]
[Prior art]
As conventional connection plates between batteries, those shown in FIGS. 6 and 7 are known. The connection plate 1 is a rectangular thin plate made of a nickel (Ni) material, a nickel plating material of an iron plate, or a (Ni—Cu—Ni) clad material in which a nickel plate is bonded to both sides of a copper plate, and has a central portion. Reference numeral 3 denotes a stepped shape that rises in parallel with the main surface as shown in FIG. In addition, a slit 4 that is parallel to the long side is formed from the center of the short side of the connecting plate 1 to a position that reaches the central portion 3. A dome-shaped welding bead 5 protruding downward is formed on both sides of these slits 4.
[0003]
[Problems to be solved by the invention]
By the way, the material of the connection plate 1 is originally preferably a material having a low electrical resistance value, for example, a copper (Cu) material. However, the connection plate made of copper material is difficult to resistance weld, and thus is stably manufactured on a mass production basis. It is difficult.
[0004]
That is, in the case of resistance welding, a copper material is used for the electrode of the welding machine, and normally, materials having lower conductivity than the copper material are connected. That is, a large current is passed between the welded bodies, the Joule heat generated by the contact resistance therebetween generates heat between the welded bodies, the welded bodies reach their melting points, and are fixed to each other. By the way, when the conductivity of the welded body is good, the resistance value of the welded body is small, so that the welding current flows through the welded body and hardly flows into the welded portion, and heat generation due to contact resistance becomes insufficient. . Therefore, usually, the welding current is simply increased. However, by doing so, since the welding current is large, the temperature of the electrode of the welding machine is increased, the life of the electrode is shortened, and it is necessary to frequently replace the electrode. On the other hand, if a copper material is simply used as the connection plate, when the welding machine electrode is made of copper material, both have the same conductivity, so if the welding current is simply increased, both are heated and the electrode and the object to be welded are heated. Will stick.
[0005]
For the reasons described above, there has been a problem that a nickel (Ni) material or a very expensive nickel / copper / nickel (Ni—Cu—Ni) clad material must be used as the material of the connection body.
[0006]
The present invention has been made to solve such a problem, and an object of the present invention is to provide a connection plate mainly made of a copper material capable of resistance welding and a connection method of the connection plate.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems of the prior art, the connection plate of the present invention is a connection plate for electrically connecting a plurality of batteries, and is made of a copper material, and is slit so as to approach each other from both longitudinal ends. The slits are opposed to each other with a narrow gap between them, and a gap is formed on both sides of the slit. A welding bead is formed on both sides of the slit and is closer to one of the longitudinal ends. A welding bead on both sides straddling the slit is brought into contact with the battery to be connected, and each of the pair of electrodes of the welding machine is applied to a portion on the opposite side of the welding bead to pass a current between the pair of electrodes. In some cases, the spacing portion is formed so as to be capable of fusing.
Further, a plurality of the spacing portions are formed. Further, the surface of the copper material is nickel-plated. The height of the welding bead is 0.5 to 2 times the plate thickness of the connection plate, and the diameter is 1 to 10 times the plate thickness.
The connection plate connection method of the present invention is a connection plate connection method for connecting a connection plate for electrically connecting a plurality of batteries using a welding machine, and the connection plate is made of a copper material. The slits are formed so as to approach each other from both ends in the longitudinal direction, the end portions of the slits are opposed to each other with a narrow interval, and the interval portions are formed, and the welding beads are formed on both sides across the slit. A step of bringing the welding beads on both sides of the slit into contact with the battery to be connected, and the welding beads on both sides of the pair of electrodes of the welding machine straddling the slit closer to one of the longitudinal ends. Applying a current between the pair of electrodes against the opposite side of the electrode, connecting the welding beads on both sides across the slit near the one end to the battery to be connected, and fusing the gap And said Each of the pair of electrodes is applied to a portion on the opposite side of the welding bead on both sides across the slit near the other end in the longitudinal direction, and a current is passed between the pair of electrodes, and the other end And a step of connecting the welding beads on both sides straddling the slit near the portion to the battery to be connected.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the connection plate of the present invention will be described with reference to FIGS.
[0009]
The connection plate 10 is a rectangular thin plate made of a copper (Cu) material and has curved corner portions 11. The connection plate 10 is plated with nickel (Ni) having a thickness of 3 to 20 μm by electroplating or chemical plating. Moreover, the longitudinal direction center part 12 of the connection board 10 is made into the shape which protruded in parallel with respect to the main surface part, as shown in FIG. A pair of slits 13 parallel to the long side from the central part of both ends in the longitudinal direction of the connecting plate 10 hold a narrow spacing part 14 having a thickness of, for example, 0.5 times the plate thickness at the center of the central part 12, for example. It is formed to do. In addition, the position of the slit 13 may not be the center part of the width | variety of the connection board 10, and the narrow space | interval part 14 may also remove | deviate from the center part 12. FIG. Further, near the both ends of the connecting plate 10, a dome-shaped welding bead 15 protruding downward along both sides of the slits 13 is formed at least at one place (two places in the figure) on one side of each end. ing. As shown in FIG. 3, the height a of the bead 15 is 0.5 to 2 times, for example, 2 times the plate thickness, and the diameter b is 1 to 10 times, for example, 5 times the plate thickness. Yes.
[0010]
Next, welding of the connection plate 10 to the battery 16 will be described with reference to FIGS.
[0011]
First, a welding machine that can flow a large current in a short time is used as the welding machine. This is because when a copper (Cu) material is welded using a normal welding machine, heat is generated and welding cannot be performed. The welding current is a large current of about 1 KA (min).
[0012]
In welding, in the conventional connection plate shown in FIG. 6, since the electrical resistance of copper itself is low, current does not flow to the welding bead, and even if there is a slit 4, it flows around the connection plate itself. Since the reactive current at the time of welding increases, the connection plate 10 having the slit 13 that penetrates deeply as shown in FIG. 1 is used. When one end of the connection plate 10 shown in FIG. 1 is brought into contact with the electrode of the battery 16 and the electrode of the welding machine is applied to one end of the connection plate 10 and a large current (1 KA or more) flows for a short time (100 msec or less), A current flows as indicated by A from one side of the slit 13 to the other side through a narrow interval portion 14, and the narrow interval portion 14 generates heat and melts. This is the first stage.
[0013]
In the next second stage, since the pair of slits 13 and 13 are continuously separated and the connecting plate 10 is completely divided into two pieces, only B is passed through the welding bead 15 without any current wraparound. As shown, current flows and resistance welding is performed. Two or more narrow spaces 14 may be provided. Further, the location is not limited to the central portion as described above. Since the connecting plate portions on both sides of the slit 13 are integrally connected by the gap portion 14 at the beginning, the connecting plate 10 can be handled as an integrated connecting plate until just before connecting the connecting plate 10 to the battery. However, once a welding current is passed, the connecting plate is divided across the slit 13 to prevent current from wrapping around.
[0014]
As shown in FIG. 4, after one end of the connection plate 10 is connected to the battery 16, the other end of the connection plate 10 is connected to another battery 16a as shown in FIG. The welding current C at this time also flows without wraparound, and resistance welding is performed without any trouble.
[0015]
In the resistance welding as described above, the nickel plating layer enables resistance welding, and the main copper gives a low electric resistance value. The nickel layer improves rust prevention and corrosion resistance. Further, the nickel-plated copper plate connection plate is less expensive than the above-described clad material.
[0016]
【The invention's effect】
As described above, since the connection plate of the present invention is mainly made of a copper material, it is inexpensive, and this copper material is plated with nickel, and nickel has no problem like copper during resistance welding. The connection between the electrode and the connection plate, which is the object to be welded, can be prevented, and since nickel has corrosion resistance, there is no risk of corrosion due to the electrolytic solution of copper.
[0017]
If a pair of slits are formed so that the connection plate is directed from the both longitudinal ends to the center and a narrow gap is formed between the tips, the connection body eliminates current flow to the connection plate during final welding. It is possible to reduce the generation of heat of itself, effectively generate heat in the welding bead, and complete welding.
[0018]
The height of the welding bead is 0.5 to 2 times the plate thickness of the connection plate, and the diameter is 1 to 10 times the plate thickness, thereby reducing the reactive current during welding.
[Brief description of the drawings]
FIG. 1 is a bottom view showing an embodiment of a connection body according to the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is an enlarged sectional view of a welding bead.
FIG. 4 is an explanatory view of an action of welding the connection plate to the first battery.
FIG. 5 is an explanatory diagram of an action of welding a connection plate to another battery.
FIG. 6 is a bottom view of a conventional connection plate.
7 is a side view of FIG. 6. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Connection board 11 Curved corner part 12 Center part 13 Slit 14 Narrow space | interval part 15 Bead 16 Battery 16a Battery

Claims (6)

複数の電池同士を電気的に接続する接続板であって、銅材よりなり、
長手方向両端から互いに接近するようにスリットが形成され、これらスリットの先端部間が狭い間隔をおいて対向して間隔部が形成されており、
スリットを跨ぐ両側に溶接用ビードが形成され、
長手方向両端のうちの一方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接触させるとともに溶接機の一対の電極の各々を前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流したときに、前記間隔部は、溶断可能に形成されている
ことを特徴とする接続板。A connection plate for electrically connecting a plurality of batteries, made of copper,
Slits are formed so as to approach each other from both ends in the longitudinal direction, and the end portions of these slits are opposed to each other with a narrow interval, and an interval portion is formed,
Welding beads are formed on both sides of the slit,
A welding bead on both sides straddling a slit near one end of both ends in the longitudinal direction is brought into contact with a battery to be connected, and each of the pair of electrodes of the welding machine is applied to a portion opposite to the welding bead. The connection plate according to claim 1, wherein when the current is passed between the pair of electrodes, the gap portion is formed so as to be meltable. 前記銅材の表面にニッケルメッキが施されている
ことを特徴とする請求項１記載の接続板。The connection plate according to claim 1, wherein the surface of the copper material is nickel-plated. 前記溶接用ビードの高さは、接続板の板厚の０．５〜２倍とされ、その径は板厚の１〜１０倍とされている
ことを特徴する請求項１記載の接続板。2. The connection plate according to claim 1, wherein the height of the welding bead is 0.5 to 2 times the plate thickness of the connection plate, and the diameter is 1 to 10 times the plate thickness. 複数の電池同士を電気的に接続する接続板を溶接機を用いて接続する接続板の接続方法であって、
前記接続板は、銅材よりなり、
長手方向両端から互いに接近するようにスリットが形成され、これらスリットの先端部間が狭い間隔をおいて対向して間隔部が形成されており、
スリットを跨ぐ両側に溶接用ビードが形成されており、
スリットの両側の溶接用ビードを接続対象の電池に接触させる工程と、
溶接機の一対の電極の各々を長手方向両端のうちの一方の端部寄りのスリットを跨ぐ両側の前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流し、前記一方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接続するとともに前記間隔部を溶断させる工程と、
前記一対の電極の各々を長手方向両端のうちの他方の端部寄りのスリットを跨ぐ両側の前記溶接用ビードの反対側の部位に当てて前記一対の電極の間に電流を流し、前記他方の端部寄りのスリットを跨ぐ両側の溶接用ビードを接続対象の電池に接続する工程と、
を備えることを特徴とする接続板の接続方法。A connection plate connecting method for connecting a connection plate for electrically connecting a plurality of batteries using a welding machine,
The connection plate is made of a copper material,
Slits are formed so as to approach each other from both ends in the longitudinal direction, and the end portions of these slits are opposed to each other with a narrow interval, and an interval portion is formed,
Welding beads are formed on both sides across the slit,
Contacting the welding beads on both sides of the slit with the battery to be connected;
Applying a current between the pair of electrodes by applying each of the pair of electrodes of the welder to the opposite side of the welding bead on both sides across the slit near one end of both ends in the longitudinal direction, Connecting the welding beads on both sides straddling the slit near one end to the battery to be connected and fusing the gap portion;
Each of the pair of electrodes is applied to a portion on the opposite side of the welding bead on both sides across the slit near the other end of both ends in the longitudinal direction, and a current is passed between the pair of electrodes. Connecting the welding beads on both sides across the slit closer to the end to the battery to be connected;
The connection method of the connection board characterized by comprising. 前記銅材の表面にニッケルメッキが施されている
ことを特徴とする請求項４記載の接続板の接続方法。The method for connecting connection plates according to claim 4, wherein the surface of the copper material is nickel-plated. 前記溶接用ビードの高さは、接続板の板厚の０．５〜２倍とされ、その径は板厚の１〜１０倍とされている
ことを特徴する請求項４記載の接続板の接続方法。The height of the welding bead is 0.5 to 2 times the plate thickness of the connection plate, and the diameter is 1 to 10 times the plate thickness. Connection method.
JP27581698A 1998-09-29 1998-09-29 Connection plate and connection method of connection plate Expired - Fee Related JP3636603B2 (en)

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