JP2013195145A - Internal resistance measuring terminal - Google Patents

Internal resistance measuring terminal Download PDF

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JP2013195145A
JP2013195145A JP2012060635A JP2012060635A JP2013195145A JP 2013195145 A JP2013195145 A JP 2013195145A JP 2012060635 A JP2012060635 A JP 2012060635A JP 2012060635 A JP2012060635 A JP 2012060635A JP 2013195145 A JP2013195145 A JP 2013195145A
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terminal
measuring
current
internal resistance
voltage
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Kiyoshi Takahashi
高橋  清
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Furukawa Battery Co Ltd:The
古河電池株式会社
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    • YGENERAL 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
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    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/12Battery technologies with an indirect contribution to GHG emissions mitigation

Abstract

PROBLEM TO BE SOLVED: To provide an internal resistance measuring terminal capable of decreasing the number of components required for measuring the inner resistance of a measured body, and reducing han-hours for connecting the measuring terminal to an electrode terminal.SOLUTION: In an inner resistance measuring terminal 10, a bolt 14 is screwed with a nut to be fastened to storage battery posts 12 and 13, and a current energizing terminal 10a and a voltage measuring terminal 10b are projected out around an annular body 10c and integrally formed with the annular body 10c. At a center part of the annular body 10c, an installation hole 10d to the storage battery posts 12 and 13 is opened, and the bolt 14 is inserted in the hole 10d. The current energizing terminal 10a is used for making a measuring current flow to an inner resistance 11a of a lead storage battery 11, and the voltage measuring terminal 10b is used for measuring voltage generated in the inner resistance 11a of the lead storage battery 11 by the energization of the measuring current. The current energizing terminal 10a and the voltage measuring terminal 10b are symmetrically formed at opposite positions of the annular body 10c.

Description

本発明は、被測定体の内部抵抗を4端子法で測定する際に用いられる内部抵抗計測用端子に関するものである。 The present invention relates to the internal resistance measuring terminal used when measuring by the 4-terminal method the internal resistance of the object to be measured.

一般的に、鉛蓄電池等の被測定体の劣化や残容量を測定する方法として、その内部抵抗を計測する方法が多く用いられている。 Generally, and as a method of measuring the degradation or remaining capacity of the object to be measured such as a lead storage battery, a method is often used to measure the internal resistance. 鉛蓄電池等の内部抵抗値は非常に小さいことにより、その測定には4端子法が多く用いられている。 By the internal resistance value, such as lead-acid battery is very small, it is widely used four-terminal method in the measurement. 4端子法では、図1に示すように、鉛蓄電池等の被測定体1の電極端子である蓄電池ポスト2,3間に、定電流源4および電圧計5が接続線6a,6bおよび7a,7bによって接続される。 4 The terminal method, as shown in FIG. 1, between the battery posts 2 and 3 is an electrode terminal of the measured object 1, such as a lead storage battery, a constant current source 4 and the voltmeter 5 connected lines 6a, 6b and 7a, It is connected by 7b. この4端子法による内部抵抗値の測定では、定電流源4および電圧計5から蓄電池ポスト2,3までに至る接続線6a,6b、7a,7bの接続線抵抗や、接続線6a,6b、7a,7bと蓄電池ポスト2,3との間の接触抵抗を無視できるので、2端子法による測定に比べ、精度よく被測定体1の内部抵抗を計測できる。 In the measurement of the internal resistance by the four-terminal method, connecting line 6a extending from the constant current source 4 and the voltmeter 5 to battery posts 2,3, 6b, 7a, 7b connecting wire resistance or the connection lines 6a, 6b, 7a, since negligible contact resistance between 7b and battery post 2, compared with the measurement by the two-terminal method, it can be measured accurately internal resistance of the object to be measured 1. 一方、4端子法による内部抵抗値の測定には、定電流源4によって計測電流を被測定体1に流す回路用と、電圧計5によって電圧を計測する回路用との、合計4本の接続線6a,6b、7a,7bが必要になる。 Meanwhile, 4 for the measurement of the internal resistance by terminal method, of a circuit for supplying a measuring current to the measured object 1 by the constant current source 4, a circuit for measuring the voltage by the voltmeter 5, a total of four connection line 6a, 6b, 7a, 7b is required.

そして、鉛蓄電池等の内部抵抗値を4端子法によって計測する場合、一般的に、鉛蓄電池等の電極端子に内部抵抗計測用端子が接続される。 Then, when measured by four-terminal method the internal resistance value such as lead-acid battery, generally, the internal resistance measuring terminal is connected to the electrode terminals such as lead-acid battery. この内部抵抗計測用端子は、計測電流を流す回路用の電流通電端子と、電圧を計測する回路用の電圧計測端子との一対が、鉛蓄電池等の1つの電極端子に個々に接続され、合計4つの内部抵抗計測用端子が個々の鉛蓄電池等に用いられることが多い。 The internal resistance measuring terminal, a current conduction terminal of the circuit for supplying a measuring current, a pair of voltage measurement terminals for circuit for measuring the voltage, is connected individually to one electrode terminal, such as a lead storage battery, the total four internal resistance measuring terminal is often used in the individual lead-acid battery or the like.

例えば、特許文献1に開示された計測用端子構造では、一方の計測用端子と他方の計測用端子との一対の端子が、鉛蓄電池の1つの電極端子に個々に接続され、1個の鉛蓄電池当たり合計4つの内部抵抗計測用端子が用いられている。 For example, in the measuring terminal structure disclosed in Patent Document 1, a pair of terminals between one of the measuring terminals and the other measuring terminal is connected individually to one electrode terminal of the lead storage battery, one lead total per storage battery 4 internal resistance measuring terminal is used. 一方の計測用端子は、O字形状を有する環状部と、この環状部から突設された端子部とからなる。 One measuring terminal is composed of an annular portion having an O-shape, a terminal portion projecting from the annular portion. 他方の計測用端子は、一方の計測用端子の環状部と比較してやや大きいC字形状を有する環状部と、この環状部から突設された端子部とからなる。 The other measuring terminal is composed of an annular portion having a slightly larger C-shape as compared to the annular portion of one of the measuring terminals, a terminal portion projecting from the annular portion. 4端子法による内部抵抗の計測時には、一方の計測用端子のO字形状をした環状部は、他方の計測用端子のやや大きいC字形状をした環状部に嵌め合わされる。 4 During the measurement of the internal resistance by the terminal method, the annular portion in which the O-shape of the one measurement terminal is fitted to the annular portion which is slightly larger C-shape of the other measuring terminal. そして、一対のこれら計測用端子は、この嵌め合わされた状態で、電源線を固定する圧着端子とリングワッシャと共に、1つの電極端子の上面に締結される。 And these measuring terminal of the pair is in the fitted state, with the crimp terminal and the ring washer for fixing the power supply line is fastened to the upper surface of one electrode terminal.

実用新案登録第3156003号公報 Utility Model Registration No. 3156003 discloses

鉛蓄電池等の被測定体の内部抵抗を4端子法で測定する際に用いられる上記従来の内部抵抗計測用端子は、上記のように、計測電流を流す回路用の電流通電端子と、電圧を計測する回路用の電圧計測端子との一対が、鉛蓄電池等の1つの電極端子に個々に接続され、1個の被測定体当たり4つの計測用端子が必要とされる。 The conventional internal resistance measuring terminal used when measuring by the 4-terminal method the internal resistance of the object to be measured such as a lead-acid battery, as described above, the current conduction terminal of the circuit for supplying a measuring current, voltage a pair of voltage measurement terminals for circuit to be measured is connected individually to one electrode terminals such as lead-acid battery, four measuring terminals per one object to be measured is required. このため、従来、被測定体の内部抵抗の計測に多くの部品が必要とされてコストが掛かると共に、計測用端子を電極端子に接続するのに多くの工数が必要とされて手間が掛かった。 Therefore, conventionally, the number of parts required for the measurement of internal resistance with costly of the object to be measured, time-consuming is required many steps to connect the measuring terminal to the electrode terminal .

本発明はこのような課題を解決するためになされたもので、 The present invention has been made in order to solve such problems,
被測定体へ計測電流を流す電流通電端子と、計測電流の通電によって被測定体に生じる電圧を計測する電圧計測端子とを、被測定体の電極端子への取付用穴が開口した環状体の周囲に突出させて環状体に一体に形成し、内部抵抗計測用端子を構成した。 A current conduction terminal to flow a measured current to the object to be measured, and a voltage measuring terminal for measuring a voltage generated in the object to be measured by the energization of the measured current, of the annular body mounting holes of the electrode terminals of the object to be measured is opened It formed integrally with the annular body so as to protrude around constituted the internal resistance measurement terminals.

この構成によれば、電流通電端子と電圧計測端子とが1つの内部抵抗計測用端子の環状体に一体に形成されるので、2つの電極端子を有する1個の被測定体当たりに必要とされる内部抵抗計測用端子は2つとなる。 According to this configuration, since the current supply terminal and the voltage measuring terminal is formed integrally with the annular body of one of the internal resistance measuring terminal, it is required to one of the object to be measured per having two electrode terminals internal resistance measuring terminal is two and that. このため、被測定体の内部抵抗の計測に必要とされる部品が半減してコストが低減されると共に、計測用端子を電極端子に接続する工数が削減されて端子設置の手間が軽減される。 Therefore, the cost can be reduced by half the components required for the measurement of the internal resistance of the body to be measured, which reduces the number of steps to connect the measuring terminal to the electrode terminals labor of terminal installation is reduced .

また、本発明は、電流通電端子および電圧計測端子が、環状体の対向する位置に形成されていることを特徴とする。 Further, the present invention, the current conduction terminal and a voltage measuring terminal, characterized in that it is formed at a position facing the annular body.

この構成によれば、電流通電端子および電圧計測端子間の距離が最も遠くなり、電流通電端子および電圧計測端子間の導電抵抗が最も高くなる。 According to this configuration, the farthest distance between the current conduction terminal and a voltage measuring terminal, the conductive resistance between the current conduction terminal and a voltage measuring terminal is highest. このため、電流通電端子を経由する計測電流を流す回路と、電圧計測端子を経由する電圧を計測する回路との、相互の電気的独立性が高まり、内部抵抗計測のために電流通電端子から被測定体へ流される電流は、電圧を計測する回路の側に流れ込み難くなる。 Therefore, a circuit for supplying a measuring current through the current conduction terminal, the circuit for measuring the voltage via the voltage measuring terminals, electrical independence of each other is increased, the a current supply terminal for the internal resistance measurement flowed electric current to the measuring body is less likely to flow into the side of the circuit for measuring the voltage. 従って、計測電流の通電によって電圧計測端子を介して計測される電圧に、電流通電端子の側の誤差抵抗分に起因する電圧成分が含まれ難くなり、被測定体の内部抵抗の計測精度は向上する。 Therefore, the voltage measured through the voltage measuring terminals by energizing the measured current, hardly contain voltage component caused by the error resistance of the side of the current supply terminals, the measurement accuracy of the internal resistance of the object to be measured is increased to.

また、本発明は、環状体が、電流通電端子および電圧計測端子間に位置する部分に切り欠きが形成されていることを特徴とする。 Further, the present invention has an annular body, characterized in that notch portion located between the current conduction terminal and a voltage measuring terminal is formed.

この構成によれば、電流通電端子および電圧計測端子間の環状体の断面積が小さくなり、電流通電端子および電圧計測端子間の電気抵抗が高くなる。 According to this configuration, the smaller the cross-sectional area of ​​the annulus between the current supply terminals and the voltage measuring terminals, the electrical resistance between the current supply terminals and the voltage measuring terminal becomes higher. このため、この構成によっても、電流通電端子を経由する計測電流を流す回路と電圧計測端子を経由する電圧を計測する回路との相互の電気的独立性が高まり、被測定体の内部抵抗の計測精度は向上する。 Therefore, even with this configuration increases the electrical independence of each other with the circuit for measuring the voltage via the circuit and the voltage measuring terminal to flow a measured current passing through the current supply terminals, the measurement of the internal resistance of the object to be measured accuracy is improved.

また、本発明は、環状体が、電流通電端子および電圧計測端子間を分断する表面領域を除いて表面にメッキ処理が施されていることを特徴とする。 Further, the present invention has an annular body, characterized in that the plating treatment on the surface except for the surface region to divide the current between current terminals and voltage measuring terminal is applied.

この構成によれば、環状体の表面に施されるめっき処理が、電流通電端子および電圧計測端子間を分断する表面領域に行われないので、環状体と被測定体の電極端子との接触により生じる抵抗は、めっき処理が施された表面領域で低くなる。 According to this arrangement, the plating process to be applied to the surface of the annular body is, since not performed in the surface region to divide the current between current terminals and voltage measuring terminals, by contact with the electrode terminals of the annular body and the object to be measured resulting resistance is lower in the surface area where the plating process is performed. 従って、内部抵抗計測のために電流通電端子から被測定体へ流される電流は、電圧計測端子を介して電圧を計測する回路の側に流れ込み難くなる。 Therefore, flows a current to the object to be measured from the current supply terminal for the internal resistance measurement, hardly flows into the side of the circuit for measuring the voltage via the voltage measuring terminals. このため、この構成によっても、電流通電端子を経由する計測電流を流す回路と電圧計測端子を経由する電圧を計測する回路との相互の電気的独立性が高まり、被測定体の内部抵抗の計測精度は向上する。 Therefore, even with this configuration increases the electrical independence of each other with the circuit for measuring the voltage via the circuit and the voltage measuring terminal to flow a measured current passing through the current supply terminals, the measurement of the internal resistance of the object to be measured accuracy is improved.

本発明によれば、上記のように、被測定体の内部抵抗の計測に必要とされる部品数を減らしてコストを低減できると共に、計測用端子を電極端子に接続する工数を削減して端子設置の手間を軽減できる内部抵抗計測用端子が提供される。 According to the present invention, as described above, by reducing the number of steps to connect it is possible to reduce the cost by reducing the number of parts required for the measurement of the internal resistance of the object to be measured, the measuring terminal to the electrode terminal pin internal resistance measuring terminal that can reduce the labor of installation is provided.

一般的な4端子法を用いた被測定体の内部抵抗計測を説明するための図である。 It is a diagram for explaining the internal resistance measurement of the object to be measured using a general four-terminal method. (a)は、本発明の一実施の形態による内部抵抗計測用端子が取り付けられた鉛蓄電池の平面図、(b)はその側面図である。 (A) is a plan view of a lead-acid battery mounted internal resistance measuring terminal according to an exemplary embodiment of the present invention, (b) is a side view thereof. (a)は図2に示す一実施の形態による内部抵抗計測用端子の平面図、(b)、(c)および(d)は、電流通電端子および電圧計測端子の成す角度が90°、45°および30°の内部抵抗計測用端子の平面図である。 (A) is a plan view of the internal resistance measuring terminal according to an exemplary embodiment shown in FIG. 2, (b), (c) and (d) is the angle 90 ° formed by the current conducting terminal and the voltage measuring terminal, 45 ° and is a plan view of the internal resistance measuring terminal of 30 °. 図3(a)に示す一実施の形態による内部抵抗計測用端子を用いて、鉛蓄電池の内部抵抗を4端子法で測定する際の等価回路図である。 Using the internal resistance measuring terminal according to an exemplary embodiment shown in FIG. 3 (a), is an equivalent circuit diagram when measured by four-terminal method the internal resistance of the lead-acid battery. (a)は、一実施の形態の第1の変形例による内部抵抗計測用端子の平面図、(b)は、一実施の形態の第2の変形例による内部抵抗計測用端子の平面図である。 (A) is a plan view of the internal resistance measurement terminal according to the first modification of the embodiment, (b) is a plan view of the internal resistance measuring terminal according to a second modification of the embodiment is there.

次に、本発明の一実施の形態による内部抵抗計測用端子を鉛蓄電池の内部抵抗計測に用いた場合について、説明する。 Next, a case where the internal resistance measuring terminal according to an exemplary embodiment of the present invention is used for the internal resistance measurement of the lead storage battery will be described.

図2(a)は、この一実施の形態による内部抵抗計測用端子10が取り付けられた鉛蓄電池11の平面図、同図(b)はその側面図である。 2 (a) is a plan view of a lead-acid battery 11 internal resistance measuring terminal 10 according to this exemplary embodiment is mounted, Fig. (B) is a side view thereof.

鉛蓄電池11は、その上面に一対の円柱状をしたナットインサート型の蓄電池ポスト12,13が設けられている。 Lead-acid battery 11, nut insert type battery post 12, 13 is provided with a pair of cylindrical on its upper surface. これら蓄電池ポスト12,13には図示しないナットが鋳込まれており、内部抵抗計測用端子10はこのナットにボルト14が螺合して蓄電池ポスト12,13に締結されている。 These are battery posts 12, 13 are cast nuts (not shown), the internal resistance measuring terminal 10 is fastened to the battery post 12, 13 bolt 14 is screwed into the nut. 鉛蓄電池11の内部には、その電極端子である蓄電池ポスト12,13間に、セパレータを介して交互に積層された正負極板からなる極板群と電解液とによって蓄電池内部抵抗11aが形成されている。 Inside the lead-acid battery 11, its an electrode terminal between battery posts 12, 13, battery internal resistance 11a is formed by the electrode plate group consisting of positive and negative electrode plates are alternately laminated with a separator and an electrolytic solution ing.

図3(a)は内部抵抗計測用端子10の平面図を示す。 3 (a) shows a plan view of the internal resistance measuring terminal 10. 内部抵抗計測用端子10は、電流通電端子10aと電圧計測端子10bとが環状体10cの周囲に突出して環状体10cに一体に形成された、平板状をしている。 Internal resistance measuring terminal 10 is formed integrally with the annular body 10c and the current supply terminals 10a and voltage measuring terminal 10b protrude around the annular body 10c, it has a flat plate shape. この内部抵抗計測用端子10は、無酸素銅や黄銅などの材質からなり、その厚さは鉛蓄電池11の出力電圧や放電電流の大きさなどに応じて適宜決定される。 The internal resistance measuring terminal 10 is made of a material such as oxygen-free copper and brass, its thickness is properly determined depending on the magnitude of the output voltage and the discharge current of the lead acid battery 11. 環状体10cの中央部には蓄電池ポスト12,13への取付用穴10dが開口しており、内部抵抗計測用端子10の蓄電池ポスト12,13への取付時、穴10dにはボルト14が挿通される。 The central portion of the annular body 10c is open mounting hole 10d of the storage battery posts 12, 13, when attached to the battery posts 12, 13 of the internal resistance measuring terminal 10, the bolt 14 is inserted through the hole 10d It is. 電流通電端子10aは鉛蓄電池11の内部抵抗11aへ計測電流を流すのに用いられ、電圧計測端子10bは計測電流の通電によって鉛蓄電池11の内部抵抗11aに生じる電圧を計測するのに用いられる。 Current conducting terminal 10a is used to pass the measured current to the internal resistance 11a of the lead-acid battery 11, the voltage measuring terminal 10b is used to measure the voltage generated in the internal resistance 11a of the lead-acid battery 11 by the energization of the measured current. 本実施の形態では、これら電流通電端子10aおよび電圧計測端子10bは、環状体10cの対向する位置に対称に形成されており、各端子10aおよび10bの中心線が環状体10cの中心周りに成す角度は180°になっている。 In this embodiment, these current supply terminals 10a and voltage measuring terminal 10b is formed symmetrically in a position facing the annular body 10c, the center line of the terminals 10a and 10b are formed around the center of the annular body 10c angle is in the 180 °.

このような本実施の形態による内部抵抗計測用端子10によれば、電流通電端子10aと電圧計測端子10bとが1つの内部抵抗計測用端子10の環状体10cに一体に形成されるので、1個の鉛蓄電池11当たりに必要とされる内部抵抗計測用端子10は、図2に示すように2つとなる。 According to the internal resistance measuring terminal 10 according to the present embodiment, since the current supply terminal 10a and a voltage measuring terminal 10b is integrally formed on one of the annular body 10c of the internal resistance measuring terminal 10, 1 internal resistance measuring terminal 10 required per number of lead-acid battery 11 becomes two and, as shown in FIG. このため、鉛蓄電池11の内部抵抗11aの計測に必要とされる部品が半減してコストが低減されると共に、計測用端子10を蓄電池ポスト12,13に接続する工数が削減されて端子設置の手間が軽減される。 Therefore, the cost components halved required for measurement of the internal resistance 11a of the lead-acid battery 11 is reduced, the measuring terminal 10 and reduces the number of steps to connect to the battery posts 12, 13 of the terminal installation effort is reduced.

図4は、上記の内部抵抗計測用端子10を用いて、被測定体である鉛蓄電池11の内部抵抗11aを交流4端子法で測定する際の等価回路図である。 4, using the internal resistance measuring terminal 10 described above is an equivalent circuit diagram when measured by AC four-terminal method and the internal resistance 11a of the lead-acid battery 11 is measured body.

この4端子法による測定には計測用電流発生器21および電圧計22が用いられる。 Measuring current generator 21 and the voltmeter 22 is used for measurement by the four-terminal method. 計測用電流発生器21は各電流通電端子10aへ交流の計測電流を供給し、電圧計22は各電圧計測端子10b間に生じる交流電圧を計測する。 Measuring current generator 21 supplies a measuring current of the AC to each current conducting terminal 10a, the voltmeter 22 measures the AC voltage generated between the voltage measuring terminals 10b.

内部抵抗計測用端子10は、環状体10cの中央部に取付用穴10dが開口しているため、そのもの自身に、電流通電端子10aおよび電圧計測端子10b間に2つの通電経路が形成される。 Internal resistance measuring terminal 10, since the mounting hole 10d in the center of the annular body 10c is open, to by itself, two current path between the current supply terminals 10a and voltage measuring terminal 10b is formed. 一方の通電経路は環状体10cの上半分の半円弧状導電部分を伝う経路であり、この経路において内部抵抗計測用端子10そのものの導電率によって生じる導電抵抗は、電流通電端子10aから電圧計測端子10b側へかけて、抵抗R1、抵抗R2、抵抗R3と表される。 One current path is a path running down the semi-circular conductive portion of the upper half of the annulus 10c, conductive resistance caused by the conductivity of the terminal 10 itself for internal resistance measured in this pathway, the voltage measuring terminal from the current conducting terminal 10a over to the side 10b, the resistor R1, the resistor R2, is expressed as the resistor R3. また、他方の通電経路は環状体10cの下半分の半円弧状導電部分を伝う経路であり、この経路において内部抵抗計測用端子10そのものの導電率によって生じる導電抵抗は、電流通電端子10aから電圧計測端子10b側へかけて、抵抗R4、抵抗R5、抵抗R6と表される。 The other current path is a path running down the semi-circular conductive portions of the lower half of the annular body 10c, conductive resistance caused by the conductivity of the terminal 10 itself for internal resistance measured in this pathway, the voltage from the current supply terminal 10a over the measuring terminal 10b side, the resistor R4, resistor R5, represented a resistor R6.

また、内部抵抗計測用端子10は、ボルト14の頭部によって蓄電池ポスト12,13の上面に押し付けられて締結されるが、環状体10cの電流通電端子10a側半分の半円弧状導電部分と蓄電池ポスト12,13の上面との間で、接触抵抗R7、R8が生じる。 Further, the internal resistance measuring terminal 10 is fastened by being pressed against the upper surface of the battery post 12, 13 by the head of the bolt 14, a semicircular conductive portion of the current supply terminal 10a side half of the annular body 10c battery between the upper surface of the post 12, contact resistance R7, R8 occurs. また、環状体10cの電圧計測端子10b側半分の半円弧状導電部分と蓄電池ポスト12,13の上面との間で、接触抵抗R9、R10が生じる。 Further, between the upper surface of the annular body 10c of the voltage measuring terminal 10b side half of the semi-circular conductive portion and battery posts 12 and 13, contact resistance R9, R10 occurs.

計測用電流発生器21は、内部抵抗計測用端子10そのものの導電率によって生じる導電抵抗R1〜R6、および、内部抵抗計測用端子10と蓄電池ポスト12,13の上面との間の接触抵抗R7〜R10の値にかかわらず、各電流通電端子10aへ一定の計測電流を供給することが出来る。 Measuring current generator 21, the conductive resistance R1~R6 caused by the conductivity of the terminal 10 itself for internal resistance measurement, and the contact resistance between the upper surface of the internal resistance measuring terminal 10 and the battery posts 12, 13 R7~ regardless of the value of R10, it can provide a constant measurement current to the current supply terminals 10a. 一方、電圧計22で計測される電圧は、計測用電流発生器21によって計測電流が流される導電抵抗R1〜R6および接触抵抗R7〜R10の値に影響を受ける。 Meanwhile, the voltage measured by the voltmeter 22 is affected by the value of the conductive resistance R1~R6 and contact resistance R7~R10 flows measurement current by measuring current generator 21.

本実施の形態では、電流通電端子10aおよび電圧計測端子10bが図3(a)に示すように環状体10cの対向する位置に形成されているため、電流通電端子10aおよび電圧計測端子10b間の距離が最も遠くなり、同図(b)、(c)および(d)に示す内部抵抗計測用端子10A、10Bおよび10Cに比べて、電流通電端子10aおよび電圧計測端子10b間の導電抵抗R2およびR5が最も高くなる。 In this embodiment, since the current conducting terminal 10a and the voltage measuring terminal 10b is formed at a position facing the annular body 10c as shown in FIG. 3 (a), between the current supply terminals 10a and voltage measuring terminal 10b distance farthest becomes, FIG (b), (c) and the internal resistance measurement terminals 10A to (d), the compared to 10B and 10C, conductive resistor R2 and between the current supply terminals 10a and voltage measuring terminal 10b R5 is highest. すなわち、同図(a)に示す、電流通電端子10aおよび電圧計測端子10bの成す角度が180°の内部抵抗計測用端子10における電流通電端子10aおよび電圧計測端子10b間の抵抗値を1とすると、同図(b)、(c)および(d)に示す、電流通電端子10aおよび電圧計測端子10bの成す角度が90°、45°および30°(270°、315°および330°については図示せず)の内部抵抗計測用端子10A、10Bおよび10Cにおける電流通電端子10aおよび電圧計測端子10b間の抵抗値は、以下の表1に示すように、0.75、0.44および0.31の抵抗値比となる。 That is, shown in FIG. 6 (a), when the angle between the current conducting terminal 10a and the voltage measuring terminal 10b and 1 the resistance value between the current supply terminals 10a and voltage measuring terminal 10b in the internal resistance measuring terminal 10 of the 180 ° , FIG. (b), shown in (c) and (d), the angle is 90 ° formed by the current conducting terminal 10a and the voltage measuring terminal 10b, 45 ° and 30 ° (270 °, about 315 ° and 330 ° FIG. resistance between current supply terminals 10a and voltage measuring terminal 10b in the internal resistance measurement terminals 10A, 10B and 10C of Shimese not), as shown in Table 1 below, 0.75,0.44 and 0.31 the resistance value ratio.

従って、電流通電端子10aおよび電圧計測端子10bの成す角度は、90°以上270°以下が好ましい。 Therefore, the angle formed by the current conducting terminal 10a and the voltage measuring terminal 10b is preferably 90 ° or more 270 ° or less.

また、環状体10cの電流通電端子10a側半分の半円弧状導電部分と、環状体10cの電圧計測端子10b側半分の半円弧状導電部分とは形状および材質が同じであるため、蓄電池ポスト12,13の上面との間の接触抵抗R7およびR8と、接触抵抗R9およびR10とは同じ値となる。 Moreover, a semicircular conductive portion of the current supply terminal 10a side half of the annular body 10c, since the voltage measuring terminal 10b side half of the semi-circular conductive portions of the annular member 10c is the same shape and material, battery posts 12 , the contact resistance R7 and R8 between the upper surface 13, the same value and the contact resistance R9 and R10. 従って、電流通電端子10aおよび電圧計測端子10b間の導電抵抗R2およびR5が高いほど、また、接触抵抗R7〜R10が低いほど、内部抵抗11aの計測精度は向上する。 Thus, the higher the conductivity resistances R2 and R5 between current supply terminals 10a and voltage measuring terminal 10b, also, as the contact resistance R7~R10 is low, measurement accuracy of the internal resistance 11a is improved.

従って、表1からも明らかな如く電流通電端子10aおよび電圧計測端子10bの成す角度を180℃とするのがより好ましい。 Therefore, it is more preferable to be 180 ° C. The angle between the apparent as current conducting terminal 10a and the voltage measuring terminal 10b from Table 1.

本実施の形態では、上記のように、電流通電端子10aおよび電圧計測端子10b間の導電抵抗R2およびR5が高くなることで、電流通電端子10aを経由する計測電流を流す回路と、電圧計測端子10bを経由する電圧を計測する回路との、相互の電気的独立性が高まる。 In this embodiment, as described above, by higher conductive resistance R2 and R5 between current supply terminals 10a and voltage measuring terminal 10b, and a circuit for supplying a measuring current through the current conduction terminal 10a, a voltage measuring terminal the circuit for measuring the voltage via 10b, increases the electrical independence of each other. 従って、内部抵抗11aの計測のために計測用電流発生器21によって電流通電端子10aから鉛蓄電池11へ流される電流は、高い導電抵抗R2およびR5によって拒まれて、電圧計22によって電圧を計測する回路の側の導電抵抗R9およびR10に流れ込み難くなる。 Therefore, flows a current from the current supply terminal 10a by the measuring current generator 21 to the lead-acid battery 11 for measuring the internal resistance 11a is being denied by the high conductivity resistors R2 and R5, measures the voltage by voltmeter 22 hardly flows into the conductive resistors R9 and R10 of the side of the circuit. この場合、計測用電流発生器21は、定電流で計測電流を流せば、導電抵抗R1およびR4、並びに接触抵抗R7およびR8に影響されること無く、内部抵抗11aに一定電流を流すことが出来る。 In this case, the measuring current generator 21, be allowed to flow measured current with a constant current, the conductive resistors R1 and R4, as well as possible without being affected in the contact resistance R7 and R8, can flow a constant current to the internal resistance 11a . 一方、計測電流により発生する電圧を計測する電圧計22では、導電抵抗R2およびR5のために、接触抵抗R7およびR8による電圧成分が計測値に加わることは無い。 On the other hand, the voltmeter 22 measures the voltage generated by the measurement current, for conductive resistances R2 and R5, never voltage component due to the contact resistance R7 and R8 is applied to the measured value. すなわち、計測電流の通電によって電圧計測端子10bを介して計測される電圧に、電流通電端子10aの側の接触抵抗R7およびR8に起因する電圧成分が誤差分として含まれ難くなり、鉛蓄電池11の内部抵抗11aの計測精度は向上する。 That is, the voltage measured through the voltage measuring terminal 10b by energizing the measured current, voltage component caused by the contact resistance R7 and R8 sides of the current conducting terminal 10a is hardly contained as an error component, the lead-acid battery 11 measurement accuracy of the internal resistance 11a is improved.

なお、上記の実施の形態においては、電流通電端子10aおよび電圧計測端子10bを環状体10cの対向する位置に形成することで、電流通電端子10aおよび電圧計測端子10b間の導電抵抗R2およびR5を高く設定した場合について、説明した。 Incidentally, in the above embodiment, by forming the current supply terminals 10a and voltage measuring terminal 10b at a position facing the annular body 10c, the conductive resistor R2 and R5 between current supply terminals 10a and voltage measuring terminal 10b for if you set high, it has been described. しかし、図5(a)に示す内部抵抗計測用端子10Dのように、環状体10cにおける、電流通電端子10aおよび電圧計測端子10b間に位置する中央部分に、切り欠き10eを形成する構成としてもよい。 However, as the internal resistance measurement terminals 10D shown in FIG. 5 (a), the annular member 10c, the central portion located between the current supply terminals 10a and voltage measuring terminal 10b, be provided with a cutout 10e good. なお、図5において図3(a)と同一または相当する部分には同一符号を付してその説明は省略する。 Incidentally, the description of those identical with or corresponding to those in FIGS. 3 (a) in FIG. 5 will be omitted.

この構成によれば、切り欠き10eが形成されることで、電流通電端子10aおよび電圧計測端子10b間の環状体10cの断面積が小さくなり、電流通電端子10aおよび電圧計測端子10b間の導電抵抗R2およびR5はさらに高くなる。 According to this configuration, since the notch 10e is formed, the cross-sectional area of ​​the annular body 10c between current supply terminals 10a and voltage measuring terminal 10b is reduced, the conductive resistance between the current conducting terminal 10a and the voltage measuring terminal 10b R2 and R5 is even higher. このため、電流通電端子10aを経由する計測電流を流す回路と電圧計測端子10bを経由する電圧を計測する回路との相互の電気的独立性がさらに高まり、鉛蓄電池11の内部抵抗11aの計測精度はさらに向上する。 Therefore, current conducting terminal 10a electrically independent of each other and the circuit for measuring the voltage via the circuit and the voltage measuring terminal 10b passing a measuring current through further increases the measurement accuracy of the internal resistance 11a of the lead-acid battery 11 further improved.

また、図5(b)に示す内部抵抗計測用端子10Eのように、電流通電端子10aおよび電圧計測端子10b間を中間で分断する帯状の表面領域10fを除いて、導電性のよい金属で環状体10cの表面にメッキ処理を施すように構成してもよい。 Further, as the internal resistance measurement terminals 10E shown in FIG. 5 (b), except a strip-shaped surface regions 10f to divide the current between current terminals 10a and voltage measuring terminal 10b in the middle, ring of a conductive good metal it may be configured to perform a plating process on the surface of the body 10c.

この構成によれば、環状体10cの表面に施されるめっき処理が、電流通電端子10aおよび電圧計測端子10b間を分断する表面領域10fに行われないので、環状体10cと蓄電池ポスト12,13との接触により生じる接触抵抗R7〜R10は、めっき処理が施された領域で低くなる。 According to this arrangement, the plating process to be applied to the surface of the annular body 10c is, since not performed in the surface region 10f that divides between current conducting terminal 10a and the voltage measuring terminal 10b, the annular body 10c and battery posts 12, 13 contact resistance R7~R10 caused by contact with the lower plating process is applied area. 従って、内部抵抗11aの計測のために電流通電端子10aから鉛蓄電池11へ流される電流は、電圧計測端子10bを介して電圧を計測する回路の側にさらに流れ込み難くなる。 Therefore, flows a current from the current supply terminal 10a to the lead-acid battery 11 for measuring the internal resistance 11a becomes more difficult to flow into the side of the circuit for measuring the voltage via the voltage measuring terminal 10b. このため、この構成によっても、電流通電端子10aを経由する計測電流を流す回路と電圧計測端子10bを経由する電圧を計測する回路との相互の電気的独立性がさらに高まり、鉛蓄電池11の内部抵抗11aの計測精度はさらに向上する。 Therefore, this is also the configuration, increasing current carrying electrical independence of each other with the circuit for measuring the voltage via the circuit and the voltage measuring terminal 10b passing a measuring current through the terminals 10a further inside the lead-acid battery 11 measurement accuracy of the resistor 11a is further improved.

また、上記の変形例では、電流通電端子10aおよび電圧計測端子10bを環状体10cの対向する位置に形成し、かつ、環状体10cに切り欠き10eを形成するか、帯状の表面領域10fを除く表面にメッキ処理を施した場合について、説明した。 Further, in the modification described above, the current supply terminals 10a and voltage measuring terminal 10b is formed at a position facing the annular body 10c, and either to form a notch 10e in the annular body 10c, except the strip-like surface region 10f for the case of plating treatment on the surface, it has been described. しかし、電流通電端子10aおよび電圧計測端子10bを環状体10cの対向する位置に形成することなく、環状体10cにおける、電流通電端子10aおよび電圧計測端子10b間に位置する部分に、切り欠き10eを形成する構成としてもよい。 However, without forming a current supply terminal 10a and a voltage measuring terminal 10b at a position facing the annular body 10c, the annular member 10c, the portion located between the current supply terminals 10a and voltage measuring terminal 10b, the notches 10e it may be configured to form. また、電流通電端子10aおよび電圧計測端子10bを環状体10cの対向する位置に形成することなく、電流通電端子10aおよび電圧計測端子10b間を分断する表面領域10fを除いて、環状体10cの表面にメッキ処理を施すように構成してもよい。 Further, without forming the current supply terminals 10a and voltage measuring terminal 10b at a position facing the annular body 10c, except for a surface region 10f that divides between current conducting terminal 10a and the voltage measuring terminal 10b, the surface of the annular body 10c it may be configured to perform a plating treatment. また、電流通電端子10aおよび電圧計測端子10bを環状体10cの対向する位置に形成し、かつ、環状体10cにおける、電流通電端子10aおよび電圧計測端子10b間に位置する部分に切り欠き10eを形成し、かつ、電流通電端子10aおよび電圧計測端子10b間を分断する表面領域10fを除いて、環状体10cの表面にメッキ処理を施すように構成してもよい。 Further, the current supply terminals 10a and voltage measuring terminal 10b is formed at a position facing the annular body 10c, and the annular member 10c, a notch 10e in the portion located between the current conducting terminal 10a and the voltage measuring terminal 10b formed and, and, except for a surface region 10f that divides between current conducting terminal 10a and the voltage measuring terminal 10b, it may be configured to perform a plating process on the surface of the annular body 10c. このような各構成によっても、上記の実施の形態および各変形例と同様な作用効果が奏される。 With such a constituent, the same effects as embodiment and the modifications of the above embodiments are obtained.

また、上記の実施の形態では、内部抵抗計測用端子10の取付用穴10dにボルト14が挿通され、ナットインサート型の蓄電池ポスト12,13に鋳込まれたナットにボルト14が締結されて、内部抵抗計測用端子10が蓄電池ポスト12,13に取り付けられる場合について説明した。 Further, in the above embodiment, are inserted bolts 14 to mounting holes 10d of the internal resistance measuring terminal 10, a bolt 14 is fastened to the cast nuts on nut insert type battery post 12, internal resistance measuring terminal 10 has been described for the case to be attached to the battery posts 12, 13. しかし、ボルトの頭部が鉛蓄電池11の上面に鋳込まれてスタッドボルト型に蓄電池ポスト12,13が構成される場合においても、内部抵抗計測用端子10を蓄電池ポスト12,13に同様に取り付けることが可能であり、同様な作用効果が奏される。 However, even when the battery posts 12, 13 to the stud bolt type constitute the heads of the bolts are cast into the upper surface of the lead-acid battery 11, attached similarly an internal resistance measuring terminal 10 to the battery posts 12, 13 it is possible, same effects are obtained. この場合、鋳込まれたボルトの頭部に内部抵抗計測用端子10の取付用穴10dが挿通され、ボルトの頭部にナットが螺合されて、内部抵抗計測用端子10が蓄電池ポスト12,13に締結されて取り付けられる。 In this case, the inserted mounting holes 10d of the internal resistance measuring terminal 10 to the head of the cast bolt, a nut is screwed to the head of the bolt, battery post 12 is the internal resistance measuring terminal 10, 13 is mounted is fastened to.

上記の実施の形態では、本発明による内部抵抗計測用端子10を鉛蓄電池11の内部抵抗11aを4端子法で計測する場合について、説明した。 In the above embodiment, a case of measuring an internal resistance measuring terminal 10 according to the present invention the internal resistance 11a of the lead-acid battery 11 by the 4-terminal method, as described. しかし、鉛蓄電池11の内部抵抗11aに限らず、本発明による内部抵抗計測用端子10は、電気二重層コンデンサなどの被測定体の内部抵抗を4端子法で計測する場合にも同様にして適用することが出来、その場合においても上記の実施の形態と同様な作用効果が奏される。 However, not only the internal resistance 11a of the lead-acid battery 11, the internal resistance measuring terminal 10 according to the present invention, in the same manner when measured by four-terminal method the internal resistance of the object to be measured such as an electric double layer capacitor applied it is possible to, the same effects as the above embodiment can be attained even in such a case.

10、10A〜10E…内部抵抗計測用端子 10a…電流通電端子 10b…電圧計測端子 10c…環状体 10d…取付用穴 10e…切り欠き 10f…表面領域 11…鉛蓄電池 11a…蓄電池内部抵抗 12,13…蓄電池ポスト 14…ボルト 21…計測用電流発生器 22…電圧計 R1〜R6…導電抵抗 R7〜R10…接触抵抗 10,10A~10E ... internal resistance measurement terminals 10a ... current conducting terminal 10b ... voltage measuring terminal 10c ... annular body 10d ... mounting hole 10e ... notch 10f ... surface area 11 ... lead storage battery 11a ... battery internal resistance 12 ... battery post 14 ... bolt 21 ... measurement current generator 22 ... voltmeter R1-R6 ... conductive resistor R7 to R10 ... contact resistance

Claims (4)

  1. 被測定体へ計測電流を流す電流通電端子と、前記計測電流の通電によって被測定体に生じる電圧を計測する電圧計測端子とが、被測定体の電極端子への取付用穴が開口した環状体の周囲に突出して前記環状体に一体に形成されている、被測定体の内部抵抗を4端子法で測定する際に用いられる内部抵抗計測用端子。 A current conduction terminal to flow a measured current to the measured object, an annular body and a voltage measuring terminal for measuring a voltage generated in the object to be measured by energization of said measurement current, which mounting holes to the electrode terminals of the object to be measured is opened the projecting around is formed integrally with the annular body, the internal resistance measuring terminal used when measuring by the 4-terminal method the internal resistance of the object to be measured.
  2. 前記電流通電端子および前記電圧計測端子は、前記環状体の対向する位置に形成されていることを特徴とする請求項1に記載の内部抵抗計測用端子。 The current supply terminal and the voltage measuring terminal, internal resistance measuring terminal according to claim 1, characterized in that it is formed in a position facing the annular body.
  3. 前記環状体は、前記電流通電端子および前記電圧計測端子間に位置する部分に切り欠きが形成されていることを特徴とする請求項1または請求項2に記載の内部抵抗計測用端子。 Said annular body, said current supply terminals and the internal resistance measuring terminal according to claim 1 or claim 2, wherein the voltage notch portion located between the measuring terminals is formed.
  4. 前記環状体は、前記電流通電端子および前記電圧計測端子間を分断する表面領域を除いて表面にメッキ処理が施されていることを特徴とする請求項1から請求項3のいずれか1項に記載の内部抵抗計測用端子。 It said annular body, to any one of claims 1 to 3, characterized in that the plating treatment is applied to the surface except for the surface region to divide between the current supply terminals and the voltage measuring terminal internal resistance measuring terminal according.
JP2012060635A 2012-03-16 2012-03-16 Internal resistance measuring terminal Pending JP2013195145A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226878U (en) * 1985-08-01 1987-02-18
JPH0725575U (en) * 1993-10-05 1995-05-12 東光電気株式会社 Crimp terminal
JP2001256956A (en) * 2000-03-14 2001-09-21 Yazaki Corp Joint connector for battery terminal
JP2003178743A (en) * 2001-11-14 2003-06-27 Midtronics Inc Kelvin connector for battery post
JP3106066U (en) * 2004-06-21 2004-12-16 古河電池株式会社 Battery for measurement terminal
JP2008519253A (en) * 2004-11-03 2008-06-05 リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム Kelvin connector equipped with a temperature sensor
JP3156003U (en) * 2009-09-28 2009-12-10 古河電池株式会社 Measurement terminal structure
JP2010151668A (en) * 2008-12-25 2010-07-08 Furukawa Battery Co Ltd:The Measuring terminal
JP2011210424A (en) * 2010-03-29 2011-10-20 Mitsubishi Heavy Ind Ltd Battery system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6226878U (en) * 1985-08-01 1987-02-18
JPH0725575U (en) * 1993-10-05 1995-05-12 東光電気株式会社 Crimp terminal
JP2001256956A (en) * 2000-03-14 2001-09-21 Yazaki Corp Joint connector for battery terminal
JP2003178743A (en) * 2001-11-14 2003-06-27 Midtronics Inc Kelvin connector for battery post
JP3106066U (en) * 2004-06-21 2004-12-16 古河電池株式会社 Battery for measurement terminal
JP2008519253A (en) * 2004-11-03 2008-06-05 リエゾン、エレクトロニク−メカニク、エルウエム、ソシエテ、アノニム Kelvin connector equipped with a temperature sensor
JP2010151668A (en) * 2008-12-25 2010-07-08 Furukawa Battery Co Ltd:The Measuring terminal
JP3156003U (en) * 2009-09-28 2009-12-10 古河電池株式会社 Measurement terminal structure
JP2011210424A (en) * 2010-03-29 2011-10-20 Mitsubishi Heavy Ind Ltd Battery system

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