JPH05250979A - Battery-connected circuit - Google Patents

Battery-connected circuit

Info

Publication number
JPH05250979A
JPH05250979A JP4048781A JP4878192A JPH05250979A JP H05250979 A JPH05250979 A JP H05250979A JP 4048781 A JP4048781 A JP 4048781A JP 4878192 A JP4878192 A JP 4878192A JP H05250979 A JPH05250979 A JP H05250979A
Authority
JP
Japan
Prior art keywords
circuit
fuse
series
parallel
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4048781A
Other languages
Japanese (ja)
Inventor
Tomio Tamakoshi
富夫 玉越
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP4048781A priority Critical patent/JPH05250979A/en
Publication of JPH05250979A publication Critical patent/JPH05250979A/en
Pending legal-status Critical Current

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Fuses (AREA)
  • Secondary Cells (AREA)

Abstract

PURPOSE:To provide a battery-connected circuit having a simple and reliable mechanism by which the circuit can be used continuously without being put in a circuit-open condition even if fuses connected to the circuit are fused. CONSTITUTION:In a circuit where cells 1a and 1b are connected in series to each other and serial circuits such as connecting a fuse 2a in series to this are connected in plurality in parallel to each other, a circuit 6 is constituted by connecting an element 5, in which a diode 3 and a fuse 4 are connected in parallel to the serial circuits, in parallel to these circuits. When the serial circuits are released due to melting of the fuse 2a by such a reason that the cell 1a is broken down and an excessive electric current is flowed, a quantity equivalent to the electric current is flowed distributively to the other serial circuits, so that the other fuses 2b-2d are melted. An electric current exceeding a threshold value is further flowed to the element 5, and the fuse 4 is melted, so that the element 5 is switched into a short circuit condition. Thereby, the element 5 is continued electrically, and the circuit 6 is connected, so that charging becomes possible.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、例えばナトリウム−硫
黄電池などの電池を接続した回路に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit connected with a battery such as a sodium-sulfur battery.

【０００２】[0002]

【従来の技術】従来、ナトリウム−硫黄電池を集合電池
として充放電に使用する場合、単電池を複数直列接続
し、これにヒューズを直列接続するとともに、これらの
直列回路をさらに複数並列接続した回路が用いられてい
る。そして、このような並列回路が多数直列に接続さ
れ、全体として１００Ｖや２００Ｖの電圧を得るように
している。2. Description of the Related Art Conventionally, when a sodium-sulfur battery is used as an assembled battery for charging and discharging, a plurality of cells are connected in series, fuses are connected in series, and a plurality of series circuits are connected in parallel. Is used. A large number of such parallel circuits are connected in series to obtain a voltage of 100V or 200V as a whole.

【０００３】[0003]

【発明が解決しようとする課題】ところが、このような
回路においては、いずれかの単電池が故障したりしたと
き、１つのヒューズに過大電流が流れてそのヒューズが
溶断し、１つの直列回路が遮断される場合がある。この
とき、その遮断された直列回路に流れていた電流が他の
直列回路に分配されて流れるため、他の直列回路のヒュ
ーズにも過大電流が流れ全て溶断してしまう。そのた
め、回路が開放状態となり、回路を充放電に継続して使
用することができないという問題点があった。However, in such a circuit, when one of the unit cells fails, an excessive current flows through one fuse and the fuse is blown, and one series circuit May be blocked. At this time, since the current flowing in the interrupted series circuit is distributed to the other series circuits and flows, an excessive current also flows into the fuses of the other series circuits, and all the fuses are melted. Therefore, there is a problem that the circuit is opened and the circuit cannot be continuously used for charging and discharging.

【０００４】この発明は上記従来の問題点に着目してな
されたものであって、その目的は、回路に接続されたヒ
ューズが溶断しても回路が開放状態となることなく、継
続して回路を使用できるとともに、簡易かつ確実な機構
を備えた電池を接続した回路を提供することにある。The present invention has been made by paying attention to the above-mentioned conventional problems, and an object thereof is to keep a circuit open even if a fuse connected to the circuit is blown. Another object of the present invention is to provide a circuit to which a battery is connected and which has a simple and reliable mechanism.

【０００５】[0005]

【課題を解決するための手段】上記目的を達成するため
に、第１の発明では単数の電池又は複数直列接続された
電池にヒューズを直列接続するとともに、その直列回路
をさらに複数並列接続した回路において、前記直列回路
と並列にダイオードとヒューズを連結した素子を並列接
続し、しきい値を越える電流が素子に流れたときヒュー
ズが溶断して素子が短絡状態に切り換わるように構成し
た電池を接続した回路をその要旨としている。To achieve the above object, in the first aspect of the invention, a fuse is connected in series to a single battery or a plurality of batteries connected in series, and a plurality of series circuits are connected in parallel. In the above, a battery configured such that an element in which a diode and a fuse are connected in parallel with the series circuit is connected in parallel and the fuse is melted and the element is switched to a short-circuit state when a current exceeding a threshold value flows in the element. The gist is the connected circuit.

【０００６】また、第２の発明では、第１の発明の回路
において、前記素子は、支持体上に一対の端子が対向配
置され、両端子間に可動接続体が介在されてその一端が
一方の端子に接続され、他端がヒューズとダイオードを
介して他方の端子に接続されるとともに、前記ヒューズ
が過大電流によって溶断したとき可動接続体の他端が他
方の端子に接続可能となる機構を備えたものであること
をその要旨としている。In a second aspect of the invention, in the circuit of the first aspect of the invention, the element has a pair of terminals opposed to each other on a support body, a movable connection body is interposed between both terminals, and one end thereof is one side. And the other end is connected to the other terminal via a fuse and a diode, and the other end of the movable connector can be connected to the other terminal when the fuse is blown by an excessive current. The point is that it is equipped.

【０００７】[0007]

【作用】第１の発明では、電池の故障などによって電池
の直列回路に接続された１つのヒューズが溶断すると、
この回路に流れた電流が他の直列回路に分配されて流れ
る。このとき、直列接続された電池と並列にダイオード
とヒューズを連結した素子が並列接続されているため、
この素子にもそのしきい値を越えた過剰の電流が流れて
溶断し、素子は短絡状態に切り換わる。そのため、回路
は導通状態が保持され、継続して使用可能となる。In the first aspect of the invention, when one fuse connected to the series circuit of the battery is blown out due to a failure of the battery,
The current flowing in this circuit is distributed to other series circuits and flows. At this time, since the element in which the diode and the fuse are connected in parallel is connected in parallel with the battery connected in series,
An excessive current exceeding the threshold value also flows in this element to melt it, and the element is switched to a short-circuited state. Therefore, the circuit is maintained in the conductive state and can be continuously used.

【０００８】第２の発明では、過大電流が一方の端子、
可動接続体、ヒューズ及びダイオードを介して他方の端
子に流れると、ヒューズが溶断する。このとき、可動接
続体の他端は他方の端子に接続され、両端子間が導通さ
れる。従って、回路は確実に継続使用可能となる。According to the second aspect of the invention, an excessive current is applied to one terminal,
The fuse is blown when it flows to the other terminal through the movable connector, the fuse and the diode. At this time, the other end of the movable connector is connected to the other terminal, and the two terminals are electrically connected. Therefore, the circuit can be reliably used continuously.

【０００９】[0009]

【実施例】以下にこの発明を具体化した一実施例につい
て図１〜３に従って説明する。図１に示すように、充放
電電圧が２Ｖの単電池１ａ，１ｂが２つ直列接続され、
それにスズとアルミニウムの合金からなるヒューズ２ａ
が直列接続されている。同様に、単電池１ｃ，１ｄとヒ
ューズ２ｂ、単電池１ｅ，１ｆとヒューズ２ｃ及び単電
池１ｇ，１ｈとヒューズ２ｄが直列接続され、これら直
列回路が４列に並列接続されている。この並列接続に対
し、ツェナダイオード３とヒューズ４が連結された素子
５がさらに並列接続され、１つの回路６が構成されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying the present invention will be described below with reference to FIGS. As shown in FIG. 1, two unit cells 1a and 1b having a charging / discharging voltage of 2V are connected in series,
In addition, a fuse 2a made of an alloy of tin and aluminum
Are connected in series. Similarly, the unit cells 1c and 1d and the fuse 2b, the unit cells 1e and 1f and the fuse 2c, and the unit cells 1g and 1h and the fuse 2d are connected in series, and these series circuits are connected in parallel in four rows. To this parallel connection, an element 5 in which the Zener diode 3 and the fuse 4 are connected is further connected in parallel to form one circuit 6.

【００１０】この素子５には、通常時には単電池自身の
電圧により逆電圧が印加されているため、電流は流れな
い。ヒューズ４が全て切断され、ツェナダイオード３の
順方向に電流が流れるような場合、あるいは逆方向にあ
るしきい値を越えるような逆電圧がかかった場合には導
通するようになっている。このような回路６が多数直列
接続されることにより、所望の充放電電圧例えば１００
Ｖや２００Ｖの電圧を得る回路が構成される。A reverse voltage is normally applied to the element 5 by the voltage of the unit cell itself, so that no current flows. When the fuse 4 is all cut and a current flows in the forward direction of the Zener diode 3, or when a reverse voltage that exceeds a certain threshold is applied in the reverse direction, the fuse is made conductive. By connecting many such circuits 6 in series, a desired charging / discharging voltage, for example, 100
A circuit for obtaining a voltage of V or 200V is configured.

【００１１】前記ツェナダイオード３とヒューズ４が連
結された素子５の機構を図２に従って説明する。支持体
１０上には一対の端子板１１，１２が互いに対向するよ
うに固定されている。これら端子板１１，１２の他端は
前記回路６に接続されるようになっている。両端子板１
１，１２間には可動接続板１３が配置されて、その一端
が一方の端子板１１の端部に係合されており、可動接続
板１３はその係合部１３ａを中心にして回動可能であ
る。この可動接続板１３の他端部と他方の端子板１２の
突出部１２ａとの間には、前記ヒューズ２ａ〜２ｄと同
様の材質からなる棒状のヒューズ４と板状のツェナダイ
オ−ド３が介装されている。The mechanism of the element 5 in which the Zener diode 3 and the fuse 4 are connected will be described with reference to FIG. A pair of terminal plates 11 and 12 are fixed on the support 10 so as to face each other. The other ends of these terminal plates 11 and 12 are connected to the circuit 6. Both terminal boards 1
A movable connection plate 13 is arranged between the terminals 1 and 12, one end of which is engaged with an end of one terminal plate 11, and the movable connection plate 13 is rotatable around the engaging portion 13a. Is. A rod-shaped fuse 4 and a plate-shaped Zener diode 3 made of the same material as the fuses 2a to 2d are interposed between the other end of the movable connection plate 13 and the projecting portion 12a of the other terminal plate 12. It is equipped.

【００１２】前記可動接続板１３の中央から突出した突
片１３ｂと他方の端子板１２の端部との間には所要の間
隙Ｓが設けられるとともに、可動接続板１３と前記支持
体１０のバネ支持部１０ａとの間には圧縮コイルバネ１
４が介在されている。そして、通常は前記バネ１４のバ
ネ力がヒューズ４とツェナダイオード３に作用して前記
間隙Ｓが開いた状態に保持されるようにしている。ま
た、ヒューズ４が溶断されると、バネ１４の付勢力によ
って可動接続板１３が回動して可動接続板１３の突片１
３ｂと他方の端子板１２の端部とが互いに接触して導通
し、一方の端子板１１から可動接続板１３を介して他方
の端子板１２に電流が流れるようにしている。A required gap S is provided between the projecting piece 13b projecting from the center of the movable connecting plate 13 and the end of the other terminal plate 12, and the movable connecting plate 13 and the spring of the supporting body 10 are provided. A compression coil spring 1 is provided between the support portion 10a and the support portion 10a.
4 is interposed. Then, normally, the spring force of the spring 14 acts on the fuse 4 and the Zener diode 3 to keep the gap S open. When the fuse 4 is blown, the movable connecting plate 13 is rotated by the urging force of the spring 14 and the projecting piece 1 of the movable connecting plate 13 is rotated.
3b and the end portion of the other terminal plate 12 are in contact with each other to be electrically connected to each other, and a current flows from one terminal plate 11 to the other terminal plate 12 via the movable connection plate 13.

【００１３】さて、電池１ａ〜１ｈの充電時には、図示
しない充電器により回路６に所定の充電電圧が印加さ
れ、図中上から下へ電流が流れる。このとき、例えば電
池１ａに短絡故障が起きたりすると、その直列回路のヒ
ューズ２ａが溶断されて電気的に開放される。そして、
その直列回路に流れた過大電流が他の直列回路に分配さ
れて流れ、各直列回路のヒューズ２ｂ〜２ｄが溶断す
る。従って、ツェナダイオード３とヒューズ４とからな
る素子５にしきい値を越える過大電流が流れる。When charging the batteries 1a to 1h, a predetermined charging voltage is applied to the circuit 6 by a charger (not shown), and a current flows from top to bottom in the figure. At this time, for example, if a short circuit failure occurs in the battery 1a, the fuse 2a in the series circuit is melted and electrically opened. And
The excessive current flowing in the series circuit is distributed to the other series circuits and flows, and the fuses 2b to 2d of the series circuits are blown. Therefore, an excessive current exceeding the threshold value flows in the element 5 including the Zener diode 3 and the fuse 4.

【００１４】このとき、素子５中のヒューズ４は過大電
流が流れることによって溶断する。そのため、図３に示
すように、可動接続板１３の突片１３ｂはバネ１４の付
勢力によって他方の端子板１２の端部と接触して導通す
る。従って、一方の端子板１１から可動接続板１３、そ
の突片１３ｂを介して他方の端子板１２に電流が流れ
る。そのため、素子５が導通されて回路６の接続が保持
され、充電の継続が可能となる。At this time, the fuse 4 in the element 5 is blown by the flow of an excessive current. Therefore, as shown in FIG. 3, the projecting piece 13b of the movable connecting plate 13 comes into contact with the end portion of the other terminal plate 12 by the urging force of the spring 14 and becomes conductive. Therefore, a current flows from one terminal plate 11 to the other terminal plate 12 via the movable connection plate 13 and the projecting piece 13b. Therefore, the element 5 is conducted, the connection of the circuit 6 is maintained, and the charging can be continued.

【００１５】この場合、この並列回路の電圧降下（４
Ｖ）はあるものの、回路全体の電圧１００Ｖや２００Ｖ
に比べると小さいので、この電圧降下はほとんど影響が
ない。また、電池１ａ〜１ｈの放電時においては、例え
ば電池１ａに短絡故障などの事故が発生しても他の電池
１ｃ〜１ｈに影響することはない。In this case, the voltage drop (4
V), but the voltage of the whole circuit is 100V or 200V
This voltage drop has almost no effect because it is small compared to. Further, when the batteries 1a to 1h are discharged, even if an accident such as a short circuit failure occurs in the battery 1a, the other batteries 1c to 1h are not affected.

【００１６】上述のように、この実施例では回路６に接
続されたヒューズ２ａ〜２ｄが溶断しても回路６が開放
状態となることなく、継続して集合電池を充電に使用す
ることができる。しかも、素子５の機構は簡易なもの
で、かつ過大電流が流れたとき確実に短絡が行われる。As described above, in this embodiment, even if the fuses 2a to 2d connected to the circuit 6 are blown, the circuit 6 is not opened and the assembled battery can be continuously used for charging. .. Moreover, the mechanism of the element 5 is simple, and a short circuit is surely performed when an excessive current flows.

【００１７】なお、この発明は上記実施例に限定される
ものではなく、発明の趣旨を逸脱しない範囲で例えば以
下のように任意に具体化して実施してもよい。 （イ）前記バネ１４を可動接続板１３の前記実施例とは
反対側に配置して可動接続板１３を図２の下方へ引っ張
るように構成すること。 （ロ）直列回路における単電池の数を１個にしたり、電
池の種類として亜鉛−塩素電池などの二次電池を用いた
りすること。 （ハ）可動接続板１３の形状や大きさを変えること。 （ニ）回路６に流れる電流に応じて素子５のしきい値を
変えたり、地絡事故が発生したときに適用できるように
構成すること。The present invention is not limited to the above-described embodiments, but may be embodied and embodied arbitrarily as follows, for example, without departing from the spirit of the invention. (A) The spring 14 is arranged on the side of the movable connecting plate 13 opposite to that of the embodiment, and the movable connecting plate 13 is pulled downward in FIG. (B) The number of unit cells in the series circuit should be one, or a secondary battery such as a zinc-chlorine battery should be used as the type of battery. (C) Changing the shape and size of the movable connection plate 13. (D) The threshold value of the element 5 should be changed according to the current flowing in the circuit 6, or the structure should be applicable when a ground fault occurs.

【００１８】[0018]

【発明の効果】以上詳述したように第１の発明によれ
ば、回路に接続されたヒューズが溶断しても回路が開放
状態となることなく、継続して回路を使用できるという
優れた効果を奏する。As described in detail above, according to the first aspect of the present invention, even if the fuse connected to the circuit is blown, the circuit is not opened and the circuit can be continuously used. Play.

【００１９】第２の発明によれば、素子は機構が簡易で
しかも確実に作動するという優れた効果を奏する。According to the second invention, the element has an excellent effect that the mechanism is simple and operates reliably.

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

【図１】この発明の実施例を示す回路図である。FIG. 1 is a circuit diagram showing an embodiment of the present invention.

【図２】ツェナダイオードとヒューズとからなる素子の
機構を示す図である。FIG. 2 is a diagram showing a mechanism of an element including a Zener diode and a fuse.

【図３】実施例の作用を示す図である。FIG. 3 is a diagram showing an operation of the embodiment.

【符号の説明】[Explanation of symbols]

１ａ〜１ｈ…単電池、２ａ〜２ｄ…ヒューズ、３…ダイ
オードとしてのツェナダイオード、４…ヒューズ、５…
素子、６…回路、１０…支持体、１１，１２…端子板、
１３…可動接続板。1a to 1h ... Single cell, 2a to 2d ... Fuse, 3 ... Zener diode as diode, 4 ... Fuse, 5 ...
Elements, 6 ... Circuit, 10 ... Support, 11, 12 ... Terminal board,
13 ... Movable connection plate.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 単数の電池又は複数直列接続された電池
にヒューズを直列接続するとともに、その直列回路をさ
らに複数並列接続した回路において、 前記直列回路と並列にダイオードとヒューズを連結した
素子を並列接続し、しきい値を越える電流が素子に流れ
たときヒューズが溶断して素子が短絡状態に切り換わる
ように構成したことを特徴とする電池を接続した回路。1. A circuit in which a fuse is connected in series to a single battery or a plurality of batteries connected in series, and a plurality of series circuits are connected in parallel, wherein an element in which a diode and a fuse are connected in parallel to the series circuit is connected in parallel. A circuit to which a battery is connected, characterized in that the fuse is blown and the element is switched to a short-circuited state when connected and a current exceeding a threshold value flows in the element. 【請求項２】 前記素子は、支持体上に一対の端子が対
向配置され、両端子間に可動接続体が介在されてその一
端が一方の端子に接続され、他端がヒューズとダイオー
ドを介して他方の端子に接続されるとともに、前記ヒュ
ーズが過大電流によって溶断したとき可動接続体の他端
が他方の端子に接続可能となる機構を備えたものである
請求項１に記載の電池を接続した回路。2. The device has a pair of terminals opposed to each other on a support, a movable connecting body interposed between both terminals, one end of which is connected to one terminal, and the other end of which is connected through a fuse and a diode. The battery according to claim 1, further comprising a mechanism that allows the other end of the movable connecting body to be connected to the other terminal when the fuse is blown by an excessive current. Circuit.
JP4048781A 1992-03-05 1992-03-05 Battery-connected circuit Pending JPH05250979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4048781A JPH05250979A (en) 1992-03-05 1992-03-05 Battery-connected circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4048781A JPH05250979A (en) 1992-03-05 1992-03-05 Battery-connected circuit

Publications (1)

Publication Number Publication Date
JPH05250979A true JPH05250979A (en) 1993-09-28

Family

ID=12812793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4048781A Pending JPH05250979A (en) 1992-03-05 1992-03-05 Battery-connected circuit

Country Status (1)

Country Link
JP (1) JPH05250979A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012014350A1 (en) * 2010-07-29 2012-02-02 パナソニック株式会社 Battery module
US9390812B2 (en) 2014-07-01 2016-07-12 Samsung Electronics Co., Ltd. E-fuse test device and semiconductor device including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603827A (en) * 1983-05-21 1985-01-10 ブラウン・ボバリ・ウント・シ−・アクチエンゲゼルシヤフト Varistor safety element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603827A (en) * 1983-05-21 1985-01-10 ブラウン・ボバリ・ウント・シ−・アクチエンゲゼルシヤフト Varistor safety element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012014350A1 (en) * 2010-07-29 2012-02-02 パナソニック株式会社 Battery module
JP4961511B2 (en) * 2010-07-29 2012-06-27 パナソニック株式会社 Battery module
CN103038917A (en) * 2010-07-29 2013-04-10 松下电器产业株式会社 Battery module
US9368838B2 (en) 2010-07-29 2016-06-14 Panasonic Intellectual Property Management Co., Ltd. Battery module providing for disconnection of an abnormal cell
US9390812B2 (en) 2014-07-01 2016-07-12 Samsung Electronics Co., Ltd. E-fuse test device and semiconductor device including the same

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