JP2000106170A - Connecting plate - Google Patents

Connecting plate

Info

Publication number
JP2000106170A
JP2000106170A JP10275816A JP27581698A JP2000106170A JP 2000106170 A JP2000106170 A JP 2000106170A JP 10275816 A JP10275816 A JP 10275816A JP 27581698 A JP27581698 A JP 27581698A JP 2000106170 A JP2000106170 A JP 2000106170A
Authority
JP
Japan
Prior art keywords
welding
connecting plate
plate
connection plate
copper
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.)
Granted
Application number
JP10275816A
Other languages
Japanese (ja)
Other versions
JP3636603B2 (en
Inventor
Hiroyuki Takayasu
安 弘 幸 高
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanoh Industrial Co Ltd
Original Assignee
Sanoh Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanoh Industrial Co Ltd filed Critical Sanoh Industrial Co Ltd
Priority to JP27581698A priority Critical patent/JP3636603B2/en
Publication of JP2000106170A publication Critical patent/JP2000106170A/en
Application granted granted Critical
Publication of JP3636603B2 publication Critical patent/JP3636603B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H01M50/50—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

Abstract

PROBLEM TO BE SOLVED: To provide a connecting plate which is formed of a copper material capable of being welded to a battery by resistance welding. SOLUTION: A connecting plate 10 for electrically connecting plural batteries to each other is formed of a copper (Cu) material, and nickel(Ni) plating is performed to this copper material, and a back surface of the copper material is formed with a welding bead 15, and the height of the welding bead 15 is set at 0.5-2 times as much as the plate thickness of the connecting plate 10, and the diameter thereof is set at 1-10 times as much as the plate thickness. A pair of slits 13 are formed in the longitudinal direction of the connecting plate 10 from both ends to a central part so as to form a narrow clearance part 14 between the tips thereof. The clearance part 14 is fused in the initial welding stage so as to prevent the wraparound of the welding current to a non-welding part of the connecting plate at the following time of welding.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[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に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection plate for electrically connecting batteries.

【０００２】[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−Ｃ
ｕ−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。2. Description of the Related Art As a conventional connection plate between batteries, FIG.
And what is shown in FIG. 7 is known. This connection plate 1 is made of a nickel (Ni) material, a nickel plating material of an iron plate,
Alternatively, nickel plates were joined to both sides of a copper plate (Ni-C
u-Ni) A rectangular thin plate made of a clad material or the like, and the central portion 3 has a stepped shape parallel to the main surface as shown in FIG. Further, from the center on the short side of the connection plate 1, a slit 4 parallel to the long side is formed up to a position reaching the center 3. On both sides of these slits 4, dome-shaped welding beads 5 protruding downward are formed.

【０００３】[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（Ｃ
ｕ）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。By the way, originally, the material of the connection plate 1 is a material having a low electric resistance, for example, copper (C).
Although u) material is preferable, it is difficult to stably manufacture a copper connection plate on a mass production basis because resistance welding is difficult.

【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。That is, in the case of resistance welding, a copper material is used for an electrode of a welding machine, and usually, materials having lower conductivity than the copper material are connected to each other. That is, a large current flows between the objects to be welded, and heat is generated between the objects to be welded by Joule heat generated by the contact resistance therebetween, and the objects to be welded reach their melting points and are fixed to each other. By the way, when the conductivity of the object to be welded is good, the resistance value of the object to be welded is small, so that the welding current flows to the object to be welded, making it difficult to flow to the welded portion, and generating insufficient heat due to the contact resistance. . Therefore, usually, it simply responds by increasing the welding current. However, by doing so, the temperature of the electrode of the welding machine is increased due to the large welding current, the life of the electrode is shortened, and the electrode needs to be replaced frequently. On the other hand, when a copper material is simply used as the connection plate, and when the welding machine electrode is made of a copper material, both have the same electrical conductivity. Therefore, if the welding current is simply increased, both are heated and the electrode and the workpiece are welded. Will stick.

【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。For the above-mentioned reason, there is a problem that a nickel (Ni) material or a very expensive nickel-copper-nickel (Ni-Cu-Ni) clad material must be used as a material of the connection body. Was.

【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
してなる接続板を提供することを目的とする。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.

【０００７】[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、銅材よりなり、こ
の銅材の面にニッケル（Ｎｉ）メッキを施して構成され
ている。そして、接続板には、その長手方向両端から互
いに接近するようにスリットを形成し、スリットの先端
部間が狭い間隔をおいて対向するようにするのが好まし
い。また接続板には、溶接用ビードを形成し、この溶接
用ビードの高さは接続板の板厚の０．５〜２倍とし、そ
の径は板厚の１〜１０倍とするとよい。In order to solve the above-mentioned problems of the prior art, the connection plate of the present invention is made of a copper material, and is formed by plating the surface of the copper material with nickel (Ni). I have. It is preferable that a slit is formed in the connection plate so as to approach each other from both ends in the longitudinal direction, and the leading ends of the slits are opposed to each other with a small interval. Further, a welding bead is formed on the connecting plate, and the height of the welding bead is preferably 0.5 to 2 times the plate thickness of the connecting plate, and the diameter thereof is 1 to 10 times the plate thickness.

【０００８】[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。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a connecting plate according to the present invention will be described below with reference to FIGS.

【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。The connecting plate 10 is a rectangular thin plate made of a copper (Cu) material and has a curved corner portion 11.
The connection plate 10 is plated with nickel (Ni) having a thickness of 3 to 20 μm by electroplating or chemical plating. In addition, the central portion 12 in the longitudinal direction of the connection plate 10 is shaped so as to rise parallel to the main surface as shown in FIG. Then, a pair of slits 13 parallel to the long side from the central portion at both ends in the longitudinal direction of the connection plate 10 hold a narrow interval portion 14 having a thickness, for example, 0.5 times the plate thickness at the center of the central portion 12. It is formed so that. Note that the position of the slit 13 does not have to be at the center of the width of the connection plate 10, and the narrow space 14 may be off the center 12. At both ends of the connecting plate 10, dome-shaped welding beads 15 projecting downward along both sides of these slits 13 are formed at at least one place (two places in the figure) on one side of each end. ing. In addition, as shown in FIG. 3, the height a of the bead 15 is 0.5 to 2 times the plate thickness,
For example, the diameter b is set to 1 to 10 times, for example, 5 times the plate thickness.

【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。Next, the welding of the connection plate 10 to the battery 16 will be described with reference to FIGS.

【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。First, a welding machine capable of supplying a large current in a short time is used. This is because, when welding a copper (Cu) material 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】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（１００ｍｓ
ｅｃ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。In welding, in the conventional connection plate shown in FIG. 6, since the electric resistance of copper itself is low, current does not flow through the welding bead, and even if there is a slit 4, it goes around the connection plate itself. Since the current flows and the reactive current at the time of welding increases, a connection plate 10 having a slit 13 that penetrates deeply as shown in FIG. 1 is used. One end of the connection plate 10 shown in FIG. 1 is brought into contact with the pole of the battery 16 and the electrode of the welding machine is applied to one end of the connection plate 10 to apply a large current (1 KA or more) for a short time (100 ms).
When the current flows below ec), a current flows from one side of the slit 13 of the connecting body to the other side via the narrow space 14 as indicated by A, and the narrow space 14 generates heat and is blown. This is the first
It is a stage.

【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１
５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。In the next second stage, a pair of slits 13,
13, the connecting plate 10 is completely divided into two pieces, so that the welding bead 1
The current flows as indicated by B through only 5 and resistance welding is performed. In addition, two or more narrow spaces 14 may be provided. Further, the place is not limited to the center as described above. Since the connecting plate portions on both sides of the slit 13 are initially connected integrally by the space portion 14, the connecting plate 10 can be handled as an integrated connecting plate until immediately before connecting the connecting plate 10 to the battery. However, once the welding current is applied, the connecting plate is divided across the slit 13 to prevent the current from flowing.

【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。After connecting one end of the connection plate 10 to the battery 16 as shown in FIG. 4, 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 sneaking, and resistance welding is performed without any trouble.

【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。In the above-described resistance welding, the nickel plating layer enables the resistance welding, and copper as the main component gives a low electric resistance value. And the nickel layer improves rust prevention and corrosion resistance. Further, the connection plate made of a nickel-plated copper plate is less expensive than the clad material described above.

【００１６】[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。As described above, the connection plate of the present invention is inexpensive because it is mainly made of copper, and this copper is plated with nickel. Nickel has a problem like copper during resistance welding. This prevents sticking between the electrode of the welding machine and the connection plate, which is the welded body. Nickel has corrosion resistance, so there is no danger of corrosion by the electrolytic solution of the copper material.

【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。When a pair of slits are formed so as to extend from both ends in the longitudinal direction of the connection plate to the center and to have a narrow space between the ends thereof, it is possible to prevent current from flowing into the connection plate at the time of final welding. Thus, the generation of heat of the connection body itself can be reduced, the generation of heat in the welding bead can be effectively performed, and the welding can be completed.

【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。The reactive current during welding is reduced by setting the height of the welding bead to 0.5 to 2 times the plate thickness of the connection plate and the diameter to 1 to 10 times the plate thickness.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明による接続体の実施の形態を示す底面
図。FIG. 1 is a bottom view showing an embodiment of a connector according to the present invention.

【図２】図１の側面図。FIG. 2 is a side view of FIG. 1;

【図３】溶接用ビードの拡大断面図。FIG. 3 is an enlarged sectional view of a welding bead.

【図４】接続板を第１の電池へ溶接する作用の説明図。FIG. 4 is an explanatory diagram of an operation of welding a connection plate to a first battery.

【図５】接続板を他の電池へ溶接する作用の説明図。FIG. 5 is an explanatory diagram of an operation of welding a connection plate to another battery.

【図６】従来の接続板の底面図。FIG. 6 is a bottom view of a conventional connection plate.

【図７】図６の側面図。FIG. 7 is a side view of FIG. 6;

【符号の説明】[Explanation of symbols]

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 DESCRIPTION OF SYMBOLS 10 Connection board 11 Curved corner 12 Central part 13 Slit 14 Narrow space part 15 Bead 16 Battery 16a Battery

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】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、この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接続板。1. A connecting plate for electrically connecting a plurality of batteries to each other, wherein the connecting plate is made of a copper material, and the surface of the copper material is plated with nickel. 【請求項２】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いることを特徴とする請求項１記載
の接続板。2. The connecting plate according to claim 1, wherein slits are formed so as to approach each other from both ends in the longitudinal direction, and the leading ends of these slits face each other with a small space therebetween. 【請求項３】接続板の面に溶接用ビードが形成され、こ
の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
特徴る請求項１または２記載の接続板。3. A welding bead is formed on the surface of the connecting plate, and the height of the welding bead is 0.5 to 2 times the thickness of the connecting plate, and the diameter of the bead is 1 to 10 times the plate thickness. 3. The connection plate according to claim 1, wherein the connection plate is doubled.
JP27581698A 1998-09-29 1998-09-29 Connection plate and connection method of connection plate Expired - Fee Related JP3636603B2 (en)

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