JP4836909B2 - Terminal for measurement - Google Patents
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- JP4836909B2 JP4836909B2 JP2007249796A JP2007249796A JP4836909B2 JP 4836909 B2 JP4836909 B2 JP 4836909B2 JP 2007249796 A JP2007249796 A JP 2007249796A JP 2007249796 A JP2007249796 A JP 2007249796A JP 4836909 B2 JP4836909 B2 JP 4836909B2
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Description
本発明は、電池の電圧や内部抵抗を計測する際に電池のファストンタブ端子に取り付ける計測用端子に関する。 The present invention relates to a measurement terminal that is attached to a faston tab terminal of a battery when measuring the voltage or internal resistance of the battery.
非常用電源などとして使用される電池は、直並列に多数接続され、電源に負荷と並列に電気接続されて常時充電され、電源が停電したときは、前記多数接続された電池から無瞬断で負荷に電力が供給される。そして、これら電池は停電時に備えて、電圧や内部抵抗が定期的に検査される。この検査は負荷が稼動しているときは、電池は原則として切り離せないため、電源に接続された状態で行われる。 Batteries used as emergency power supplies, etc. are connected in series and in parallel, are electrically connected to the power supply in parallel with the load, and are constantly charged. Power is supplied to the load. These batteries are periodically inspected for voltage and internal resistance in preparation for a power failure. This inspection is performed in a state where the battery is connected to the power source because the battery cannot be disconnected in principle when the load is operating.
この検査は、例えば、図７に示すように、電池の端子１１の周囲に一体型の計測用端子１２をボルト１３により固定し、計測用端子１２に設けられた端子片１４に計測器のリード線（図示せず。）を電気接続して行われていた（特許文献１）。 In this inspection, for example, as shown in FIG. 7, an integrated measurement terminal 12 is fixed around a battery terminal 11 with a bolt 13, and a lead of a measuring instrument is attached to a terminal piece 14 provided on the measurement terminal 12. This is performed by electrically connecting wires (not shown) (Patent Document 1).
しかしながら、前記計測用端子１２は一体型のため、交流４端子法で内部抵抗を計測する場合、端子片１４に電流を流すリード線と電圧をモニタするリード線とを接続すると、両者が電気的に干渉し合って内部抵抗を正確に計測できないという問題があった。
電池の端子１１にもう１つ別の計測用端子１２を取り付けて計測する方法は、電池の端子１１部分が狭い場合はスペース的に困難であった。
However, since the measurement terminal 12 is an integrated type, when measuring the internal resistance by the AC four-terminal method, if a lead wire for passing a current and a lead wire for monitoring the voltage are connected to the terminal piece 14, the two are electrically connected. The internal resistance cannot be measured accurately due to interference with each other.
The method of measuring by attaching another measurement terminal 12 to the battery terminal 11 is difficult in terms of space when the battery terminal 11 portion is narrow.
このような状況にあって、本願出願人は、電池の端子と接触する中央部以外では相互に電気的に絶縁された２個の端子片を備えた計測用端子を開発した（実願２００７−５６２３）。この計測用端子によれば、前記電気的に絶縁された２個の端子片の一方に電流を流すリード線を接続し、他方に電圧をモニタするリード線を接続することにより４端子法による内部抵抗の計測が正確に行える。
一方、電池の端子が比較的小さい平板状のファストンタブ端子１（図８参照）を用いている電池についても、交流４端子法による内部抵抗の計測が正確に行える計測用端子の開発が望まれている。図８で１５は電槽蓋、１６は電槽である。
本発明は、電池の端子がファストンタブ端子からなる電池に適した、交流４端子法による内部抵抗の計測などが正確に行える計測用端子の提供を目的とする。
On the other hand, for a battery using a flat-shaped faston tab terminal 1 (see FIG. 8) having a relatively small battery terminal, it is desired to develop a measurement terminal capable of accurately measuring the internal resistance by the AC four-terminal method. ing. In FIG. 8, 15 is a battery case lid, and 16 is a battery case.
An object of the present invention is to provide a measurement terminal suitable for a battery in which a battery terminal is a Faston tab terminal and capable of accurately measuring internal resistance by the AC four-terminal method.
請求項１に記載した発明は、電池のファストンタブ端子と電気接続する基板部と、計測器のリード線と圧着により電気接続する圧着部とからなる２個の端子が、絶縁スリーブ内に所定間隔を開けて固定された計測用端子であって、前記２個の端子の基板部にはそれぞれ前記ファストンタブ端子の側部を圧入して電気接続するための溝が対向して設けられていることを特徴とする計測用端子である。 According to the first aspect of the present invention, two terminals including a board portion electrically connected to the battery faston tab terminal and a crimping portion electrically connected to the measuring instrument lead wire by crimping are provided in the insulating sleeve at a predetermined interval. The measurement terminals are fixed by opening the two terminals, and the board portions of the two terminals are provided with grooves for press-fitting and electrically connecting the side portions of the faston tab terminals, respectively. It is the terminal for measurement characterized by this.
請求項２に記載した発明は、前記基板部の溝の断面形状がC字状であることを特徴とする請求項1に記載の計測用端子である。 The invention described in claim 2 is the measurement terminal according to claim 1, wherein a cross-sectional shape of the groove of the substrate portion is C-shaped.
本発明の計測用端子は、電池のファストンタブ端子を接続する基板部と計測器のリード線を接続する圧着部とからなる端子２個を、絶縁スリーブ内に所定間隔を開けて固定したもので、前記２個の端子の一方の端子の圧着部に計測器の電流を流すリード線を接続し、他方の端子の圧着部に電圧をモニタするリード線を接続することにより、両リード線の相互干渉が回避され交流４端子法による内部抵抗の計測が正確に行われる。 The measurement terminal according to the present invention is obtained by fixing two terminals including a substrate portion for connecting a battery faston tab terminal and a crimping portion for connecting a lead wire of a measuring instrument with a predetermined interval in an insulating sleeve. By connecting a lead wire for passing the current of the measuring instrument to the crimping portion of one of the two terminals and connecting a lead wire for monitoring the voltage to the crimping portion of the other terminal, Interference is avoided, and the internal resistance is accurately measured by the AC four-terminal method.
前記基板部とファストンタブ端子の接続は前記基板部に設けた溝にファストンタブ端子の側部を圧入して行い、前記圧着部と計測器のリード線の接続は圧着により行うので、いずれの接続作業も容易に行える。 The connection between the board part and the faston tab terminal is performed by press-fitting the side part of the faston tab terminal into the groove provided in the board part, and the connection between the crimping part and the lead wire of the measuring instrument is performed by crimping. Work can be done easily.
前記基板部の溝の断面形状をC字状とすることにより、端子とファストンタブ端子との電気接続がより良好に行える。 By making the cross-sectional shape of the groove of the substrate part C-shaped, the electrical connection between the terminal and the faston tab terminal can be performed better.
本発明の計測用端子は、図1（イ）に示すように、電池のファストンタブ端子１を電気接続するための基板部２と、計測器のリード線を電気接続するための圧着部４とからなる端子５を２個用意しこれを絶縁スリーブ６内に所定間隔を開けて固定されたもので、前記圧着部４には計測器の電流を流すリード線３ａ又は電圧をモニタするリード線３ｂが圧着により個々に接続されている。絶縁スリーブ６内の２個の端子５は、その基板部２が断面コ字状に折り曲げられて溝２ａが形成され、その開口部２ｂは互いに対向させて固定されており、前記対向する２個の溝２ａの開口部２ｂにはファストンタブ端子１の両側部１ａ、１ｂがそれぞれ圧入される。図中１ｃはファストンタブ端子１に穿たれた穴である。 As shown in FIG. 1 (a), the measurement terminal according to the present invention includes a board portion 2 for electrically connecting a faston tab terminal 1 of a battery, and a crimping portion 4 for electrically connecting lead wires of a measuring instrument. Two terminals 5 are prepared and fixed in the insulating sleeve 6 at a predetermined interval. A lead wire 3a for passing a current of a measuring instrument or a lead wire 3b for monitoring a voltage is applied to the crimping portion 4. Are individually connected by crimping. The two terminals 5 in the insulating sleeve 6 have a groove 2a formed by bending the substrate portion 2 into a U-shaped cross section, and the openings 2b are fixed to face each other. Both side portions 1a and 1b of the faston tab terminal 1 are press-fitted into the opening 2b of the groove 2a. In the figure, reference numeral 1 c denotes a hole formed in the faston tab terminal 1.
図１（ロ）に示す様に、計測用端子は、次のようにして組み立てられる。
即ち、２個の端子５の各圧着部４にそれぞれ計測器の電線の被覆を剥いで露出した前記リード線３ａ、３ｂを通し、圧着部４を圧着工具で圧縮してそれぞれリード線３ａ、３ｂを圧着する。次に前記２個の端子５を溝２ａの開口部２ｂ（図１（イ）参照）を対向させて絶縁スリーブ６内に挿入する。絶縁スリーブ６は凹形状をなし、広い胴部６ａと脚部６ｂからなり、２個の端子５はその基板部２が胴部６ａに位置し、圧着部４が脚部６ｂに位置する。２個の端子５はその圧着部４が脚部６ｂの内周面に密着することにより固定されている。これを２個の端子５の基板部２の間隔はファストンタブ端子１の両側部１ａ、１ｂがそれぞれ２個の基板部２の溝２ａ内に収容される間隔になっている。なお、図１（ロ）では、ファストンタブ端子１の全面を絶縁スリーブ６が覆う様な計測用端子を示したが、端子５の基板部２長さを短くし、ファストンタブ端子２に計測用端子を装着した際にファストンタブ端子１の先端部のみが絶縁スリーブ６で覆われる様にし、露出したファストンタブ端子に、電池を直並列するための、或いは負荷に接続するための電池接続体を溶接やボルトナットによる締結で接続する様にしても良い。
As shown in FIG. 1B, the measurement terminal is assembled as follows.
That is, the lead wires 3a and 3b exposed by stripping the coating of the wires of the measuring instrument are passed through the crimping portions 4 of the two terminals 5, respectively, and the crimping portion 4 is compressed with a crimping tool to respectively lead wires 3a and 3b. Crimp the. Next, the two terminals 5 are inserted into the insulating sleeve 6 with the opening 2b (see FIG. 1 (a)) of the groove 2a facing each other. The insulating sleeve 6 has a concave shape and comprises a wide body portion 6a and a leg portion 6b. The two terminals 5 have the substrate portion 2 positioned at the body portion 6a and the crimping portion 4 positioned at the leg portion 6b. The two terminals 5 are fixed when the crimping portion 4 is in close contact with the inner peripheral surface of the leg portion 6b. The interval between the board portions 2 of the two terminals 5 is such that both side portions 1a and 1b of the faston tab terminal 1 are accommodated in the grooves 2a of the two substrate portions 2, respectively. In FIG. 1 (b), a measurement terminal is shown in which the insulation sleeve 6 covers the entire surface of the faston tab terminal 1. However, the length of the substrate portion 2 of the terminal 5 is shortened and the faston tab terminal 2 is used for measurement. When the terminal is mounted, only the front end portion of the faston tab terminal 1 is covered with the insulating sleeve 6, and the battery connection body for connecting the battery in series or to the load is connected to the exposed faston tab terminal. The connection may be made by welding or fastening with bolts and nuts.
図２に示す様に、端子５の溝２ａの開口部２ｂの開口幅ｔはファストンタブ端子側部１ａ、１ｂの厚みＴ（図３参照）より若干小さくなっていて、溝２ａの開口部２ｂにファストンタブ端子側部１ａ（１ｂ）を圧入すると、開口部２ｂが弾性変形して拡開し、その復元力で溝開口部２ｂとファストンタブ端子側部１ａ（１ｂ）とが相互に密着して電気的に接続される。圧着部４も断面コ字状に形成されて、これに計測器のリード線３ａ（３ｂ）の先端露出部を挿通し該圧着部４を押し潰して圧着しリード線を接続している。 As shown in FIG. 2, the opening width t of the opening 2b of the groove 2a of the terminal 5 is slightly smaller than the thickness T (see FIG. 3) of the faston tab terminal side portions 1a and 1b, and the opening 2b of the groove 2a. When the faston tab terminal side 1a (1b) is press-fitted into the opening, the opening 2b is elastically deformed and expands, and the restoring force of the groove opening 2b and the faston tab terminal side 1a (1b) are in close contact with each other. Are electrically connected. The crimping portion 4 is also formed in a U-shaped cross section, and the tip exposed portion of the lead wire 3a (3b) of the measuring instrument is inserted into the crimping portion 4 so that the crimping portion 4 is crushed and crimped to connect the lead wires.
ここでは、２個の端子５を用い、基板部をファストンタブ端子２にそれぞれ接続し、圧着部４は絶縁スリーブ６の２個の脚部６ｂ内に別々に固定されるので、それぞれの圧着部４に接続された電流を流すリード線３ａと電圧をモニタするリード線３ｂとは相互に干渉し合うことがなく、内部抵抗が４端子法により正確に計測される。 Here, since the two terminals 5 are used, the substrate part is connected to the faston tab terminal 2, and the crimping part 4 is separately fixed in the two leg parts 6b of the insulating sleeve 6, the respective crimping parts. The lead wire 3a for passing the current connected to 4 and the lead wire 3b for monitoring the voltage do not interfere with each other, and the internal resistance is accurately measured by the four-terminal method.
図３は図１（ロ）のＡ−Ａ線断面図で、端子５の基板部２とファストンタブ端子１の接続は、絶縁スリーブ６の胴部６ａ内に所定間隔を開けて対向し固定された２個の端子５の基板部２の溝２ａにそれぞれファストンタブ端子の側部１ａ、１ｂを圧入して行うので接続が容易に行える。また端子５の圧着部４と計測器のリード線３ａ、３ｂの接続は圧着により行うので接続が容易に行える。 FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1B. The connection between the substrate portion 2 of the terminal 5 and the faston tab terminal 1 is fixed to be opposed to the body portion 6a of the insulating sleeve 6 with a predetermined gap therebetween. Further, since the side portions 1a and 1b of the faston tab terminal are press-fitted into the grooves 2a of the substrate portion 2 of the two terminals 5, the connection can be easily performed. Further, since the crimping portion 4 of the terminal 5 and the lead wires 3a and 3b of the measuring instrument are connected by crimping, the connection can be easily performed.
図４は図３と同様箇所の他の実施形態の断面図で、端子５の基板部２の断面形状をＣ字状としたものである。図３と同じ符号は同じものを示す。 4 is a cross-sectional view of another embodiment similar to FIG. 3, in which the cross-sectional shape of the substrate portion 2 of the terminal 5 is C-shaped. The same reference numerals as those in FIG.
本発明において、端子５を絶縁スリーブ６内に固定する方法は任意であるが、絶縁スリーブ６の内面に端子を密着させて固定する方法が簡便である。この場合、端子５の全体を密着させても、端子５の一部を密着させても良い。一部を密着させる場合は、圧着部４を密着させるのが絶縁スリーブ６の挿入が容易に行えて望ましい。 In the present invention, a method of fixing the terminal 5 in the insulating sleeve 6 is arbitrary, but a method of fixing the terminal in close contact with the inner surface of the insulating sleeve 6 is simple. In this case, the whole terminal 5 may be adhered, or a part of the terminal 5 may be adhered. In the case where a part is brought into close contact, it is desirable that the crimping part 4 is brought into close contact because the insulating sleeve 6 can be easily inserted.
本発明において、端子５の製造は、導電性金属板を折り曲げ加工して行うのが簡便で推奨される。導電性金属板としては基板部に必要な弾性と圧着部に必要な耐クリープ性を兼備した材料が電気接続性が安定し望ましい。 In the present invention, it is simple and recommended that the terminal 5 be manufactured by bending a conductive metal plate. As the conductive metal plate, a material having both the elasticity required for the substrate portion and the creep resistance required for the crimping portion is preferable because the electrical connectivity is stable.
本発明において、端子の基板部の溝の断面形状は、その開口部でファストンタブ端子の側部を挟圧し得る形状であればコ字状、Ｃ字状など任意であるが、特に図４に示す断面Ｃ字状のものはその溝開口部２ｂの拡開（弾性変形）時の復元力が大きいため、ファストンタブ端子１と良好に電気接続され、また外れ難いので推奨される。 In the present invention, the cross-sectional shape of the groove of the substrate portion of the terminal is arbitrary such as a U-shape or a C-shape as long as the side portion of the Faston tab terminal can be clamped by the opening, but particularly in FIG. The C-shaped cross section shown is recommended because it has a high restoring force when the groove opening 2b is expanded (elastically deformed), and thus is well electrically connected to the faston tab terminal 1 and difficult to come off.
本発明において、基板部２は、その溝開口部２ｂの先端２ｄを、図５に示すようにテーパー状に加工（角取り）しておくと、ファストンタブ端子を基板部２の溝２ａ内にスムーズに挿入（圧入）することができる。なお、図中図２と同じ符号は同じものを示す。 In the present invention, the substrate portion 2 has a faston tab terminal in the groove 2a of the substrate portion 2 when the tip 2d of the groove opening 2b is processed into a taper shape as shown in FIG. It can be smoothly inserted (press-fit). In the figure, the same reference numerals as those in FIG.
本発明の上記実施形態においては、図１（ロ）に示される様に、計測用端子の絶縁スリーブがファストンタブ端子の全面を覆うまで挿入した時は、電池同士を直並列に接続する場合或いは電池を負荷に接続する場合の電池接続体を接続する部分が無くなる。この様な場合は、図６に示す２つ片を持つ分岐用接続端子７を用い、その基部７ａの側端を湾曲することで形成された基部と湾曲先端との間隙にファストンタブ端子を挿通して接続し、一方の分岐端子片７ｂに本発明の計測用端子の基板部を接続し、他方の分岐端子片７ｃに直並列用或いは負荷用リード線を接続するようにすることが出来る。 In the above embodiment of the present invention, as shown in FIG. 1 (b), when the insulation sleeve of the measurement terminal is inserted until it covers the entire surface of the faston tab terminal, the batteries are connected in series-parallel or When connecting the battery to the load, there is no portion for connecting the battery connector. In such a case, the connecting terminal 7 for branching having two pieces shown in FIG. 6 is used, and the faston tab terminal is inserted into the gap between the base and the curved tip formed by bending the side end of the base 7a. Thus, it is possible to connect the board portion of the measurement terminal of the present invention to one branch terminal piece 7b and to connect the parallel or load lead wire to the other branch terminal piece 7c.
１ ファストンタブ端子
１ａ、１ｂ ファストンタブ端子の側部
２ 端子の基板部
２ａ 基板部の溝
３ａ 電流を流すリード線
３ｂ 電圧をモニタするリード線
４ 端子の圧着部
５ 端子
６ 絶縁スリーブ
DESCRIPTION OF SYMBOLS 1 Faston tab terminal 1a, 1b Faston tab terminal side 2 Terminal board part 2a Board part groove 3a Current lead wire 3b Voltage monitoring lead wire 4 Terminal crimping part 5 Terminal 6 Insulation sleeve
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007249796A JP4836909B2 (en) | 2007-09-26 | 2007-09-26 | Terminal for measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007249796A JP4836909B2 (en) | 2007-09-26 | 2007-09-26 | Terminal for measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2009080022A JP2009080022A (en) | 2009-04-16 |
| JP4836909B2 true JP4836909B2 (en) | 2011-12-14 |
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| JP2007249796A Expired - Fee Related JP4836909B2 (en) | 2007-09-26 | 2007-09-26 | Terminal for measurement |
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| KR102261447B1 (en) * | 2019-11-29 | 2021-06-07 | 주식회사 민테크 | Apparatus for measuring impedance of battery |
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| JPS6196475A (en) * | 1984-10-17 | 1986-05-15 | Taiyo Yuden Co Ltd | Screening method of ceramic capacitor |
| JPH0442091A (en) * | 1990-06-06 | 1992-02-12 | Seiko Epson Corp | Device for time stamping |
| GB0424333D0 (en) * | 2004-11-03 | 2004-12-08 | Lem Heme Ltd | Kelvin connector including temperature sensor |
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