JPH08138753A - Scanning device for high temperature secondary battery - Google Patents
Scanning device for high temperature secondary batteryInfo
- Publication number
- JPH08138753A JPH08138753A JP6275393A JP27539394A JPH08138753A JP H08138753 A JPH08138753 A JP H08138753A JP 6275393 A JP6275393 A JP 6275393A JP 27539394 A JP27539394 A JP 27539394A JP H08138753 A JPH08138753 A JP H08138753A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- high temperature
- secondary battery
- contact
- scanning device
- 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
Links
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
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】 本発明は、ナトリウムー硫黄電
池等の高温二次電池の走査装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scanning device for a high temperature secondary battery such as a sodium-sulfur battery.
【０００２】[0002]
【従来の技術】 一般に、ナトリウム−硫黄電池等の高
温二次電池においては、単電池を所定数直列接続してス
トリングが構成されるとともに、そのストリングを所定
数並列に接続してブロックが構成される。そして、その
ブロックを所定数直列又は並列接続することでモジュー
ルが構成される。2. Description of the Related Art Generally, in a high temperature secondary battery such as a sodium-sulfur battery, a predetermined number of unit cells are connected in series to form a string, and a predetermined number of strings are connected in parallel to form a block. It A module is constructed by connecting a predetermined number of the blocks in series or in parallel.
【０００３】従来、ナトリウム−硫黄電池の起電圧を測
定して、放電深度や残存容量等の判断に供する装置とし
ては、図２に示す装置がある。同装置は、各モジュール
Ｍ１〜Ｍ８に対して並列接続された同数の絶縁アンプ５
１〜５８と、各絶縁アンプ５１〜５８の二次側に接続さ
れ、各絶縁アンプ５１〜５８の出力を順次走査する多チ
ャンネル電圧測定器６０と、その測定器６０に接続され
た複数の表示装置Ｖ１〜Ｖ８とから構成されている。な
お、各モジュールＭ１〜Ｍ８は電池設備の一部を示し、
トータルの両極間電圧は１０００Ｖ程度と高く、測定器
６０等の機器を保護するために前記絶縁アンプ５１〜５
８が設けられている。Conventionally, there is a device shown in FIG. 2 as a device for measuring the electromotive voltage of a sodium-sulfur battery to judge the depth of discharge and the remaining capacity. The same device has the same number of isolation amplifiers 5 connected in parallel to each module M1 to M8.
1 to 58 and a multi-channel voltage measuring instrument 60 connected to the secondary side of each isolation amplifier 51 to 58 and sequentially scanning the output of each isolation amplifier 51 to 58, and a plurality of displays connected to the measurement instrument 60. It is composed of devices V1 to V8. Each module M1 to M8 shows a part of the battery equipment,
The total voltage between both electrodes is as high as about 1000 V, and the isolation amplifiers 51 to 5 are used to protect the measuring instrument 60 and other devices.
8 are provided.
【０００４】この電圧測定装置により各モジュールＭ１
〜Ｍ８の電圧を、一定時間毎に測定できる。With this voltage measuring device, each module M1
The voltage of M8 can be measured at regular intervals.
【０００５】[0005]
【発明が解決しようとする課題】 しかしながら、上記
電圧測定装置では、各モジュールＭ１〜Ｍ８毎に絶縁ア
ンプ５１〜５８を設ける必要があることから、配線が複
雑になるとともに、装置が大型化し、装置の設置スペー
スを広くしなければならないという問題がある。However, in the above voltage measuring device, since it is necessary to provide the isolation amplifiers 51 to 58 for each of the modules M1 to M8, the wiring becomes complicated, the device becomes large, and the device becomes large. There is a problem in that the installation space for the product must be wide.
【０００６】また、上記電圧測定装置では、絶縁アンプ
５１〜５８がモジュールＭ１〜Ｍ８のプラス端子とマイ
ナス端子との間に接続されている。従って、絶縁アンプ
５１〜５８がかなりの値（一般に１ＭΩ程度）の内部抵
抗を有するものの、各モジュールＭ１〜Ｍ８のプラス側
とマイナス側とが接続されることになり、ナトリウムー
硫黄電池の特徴として、低温時（約２５０℃以下）にこ
の状態が継続されると、ナトリウムー硫黄電池の寿命に
悪影響を与えるおそれがある。Further, in the above voltage measuring device, the isolation amplifiers 51 to 58 are connected between the positive terminals and the negative terminals of the modules M1 to M8. Therefore, although the isolation amplifiers 51 to 58 have an internal resistance of a considerable value (generally about 1 MΩ), the positive side and the negative side of each module M1 to M8 are connected, which is a characteristic of the sodium-sulfur battery. If this state continues at low temperature (about 250 ° C. or lower), the life of the sodium-sulfur battery may be adversely affected.
【０００７】本発明は上記問題点を解消するためになさ
れたものであって、その目的は、構造が簡単で、小型化
を図ることができるとともに、電圧測定時の高温二次電
池の作動に悪影響を与えず、しかも装置の耐圧を向上で
きる高温二次電池の走査装置を提供することにある。The present invention has been made in order to solve the above problems, and its purpose is to have a simple structure, to be downsized, and to operate a high temperature secondary battery at the time of voltage measurement. It is an object of the present invention to provide a scanning device for a high temperature secondary battery which does not have a bad influence and which can improve the breakdown voltage of the device.
【０００８】[0008]
【課題を解決するための手段】 上記目的を達成するた
めに、請求項１においては、複数の高温二次電池のプラ
ス側及びマイナス側にそれぞれ接続され、スイッチを有
するスイッチ回路と、予め定められたプラス側及びマイ
ナス側のスイッチ回路の組を順次選択して、選択された
回路のスイッチを閉路させる制御手段と、スイッチ回路
の出力側に一次側において接続された電圧絶縁変換手段
と、電圧絶縁変換手段の二次側に接続された高温二次電
池の電圧を検出する検出手段とを備えていることをその
要旨とする。Means for Solving the Problems In order to achieve the above object, in claim 1, a switch circuit having a switch, which is respectively connected to the plus side and the minus side of a plurality of high-temperature secondary batteries, and is predetermined. Control means for sequentially selecting a set of positive side and negative side switch circuits and closing the switches of the selected circuits, voltage insulation conversion means connected on the primary side to the output side of the switch circuit, and voltage insulation. The gist of the present invention is to include a detecting means for detecting the voltage of the high temperature secondary battery connected to the secondary side of the converting means.
【０００９】請求項２においては、スイッチ回路のスイ
ッチは、直列接続された有接点スイッチ及び無接点スイ
ッチであることをその要旨とする。請求項３において
は、制御手段は、有接点スイッチの閉路状態で、無接点
スイッチを開閉する第１のモードと、有接点スイッチ及
び無接点スイッチの双方を同時に開閉する第２のモード
とを設定することをその要旨とする。The gist of claim 2 is that the switches of the switch circuit are a contact switch and a contactless switch connected in series. In the present invention, the control means sets a first mode for opening and closing the contactless switch and a second mode for simultaneously opening and closing both the contactless switch and the contactless switch in the closed state of the contactless switch. What to do is the gist.
【００１０】請求項４においては、制御手段は、有接点
スイッチの閉路状態で無接点スイッチを開閉する第１の
モードと、有接点スイッチを間欠的に開閉させた状態で
無接点スイッチを開閉する第２のモードとを設定するこ
とをその要旨とする。According to another aspect of the present invention, the control means opens and closes the contactless switch in the first mode in which the contactless switch is closed and the contactless switch is opened and closed intermittently. The gist is to set the second mode.
【００１１】請求項５においては、各高温二次電池の温
度を検知する検知手段を設け、制御手段は検知手段から
の検知信号を入力して、高温二次電池の温度に応じて第
１，第２のいずれかのモードを設定することをその要旨
とする。According to a fifth aspect of the present invention, detection means for detecting the temperature of each high temperature secondary battery is provided, and the control means inputs the detection signal from the detection means to determine whether the temperature of the high temperature secondary battery is first or first. The gist is to set either of the second modes.
【００１２】請求項６においては、高温二次電池が高温
の時に第１のモードが設定され、低温の時に第２のモー
ドが設定されることをその要旨とする。請求項７におい
ては、電圧絶縁変換手段の二次側にデプレクサが接続さ
れ、そのデプレクサに表示手段が接続されたことをその
要旨とする。In a sixth aspect, the gist is that the first mode is set when the high temperature secondary battery is at a high temperature, and the second mode is set when the high temperature secondary battery is at a low temperature. The gist of claim 7 is that a deplexer is connected to the secondary side of the voltage insulation conversion means, and the display means is connected to the deplexer.
【００１３】[0013]
【作用】 請求項１によれば、予め定められたスイッチ
回路が順次選択されて、高温二次電池の電圧を検出手段
により順次測定できる。このため、絶縁アンプを多数設
けることなく、高温二次電池の放電深度や残存容量を判
定できる。請求項２によれば、有接点スイッチにより高
温二次電池から計測回路を完全に開放できる。According to the first aspect, the predetermined switch circuits are sequentially selected, and the voltage of the high temperature secondary battery can be sequentially measured by the detection means. Therefore, the depth of discharge and the remaining capacity of the high temperature secondary battery can be determined without providing a large number of insulation amplifiers. According to the second aspect, the measuring circuit can be completely opened from the high temperature secondary battery by the contact switch.
【００１４】請求項３，４によれば、例えば、高温二次
電池の状態に応じて第１、第２モードが設定され、高温
二次電池への悪影響を防止できる。請求項５によれば、
高温二次電池の温度に応じて第１、第２のモードが設定
され、高温二次電池への悪影響を防止できる。According to the third and fourth aspects, for example, the first and second modes are set according to the state of the high temperature secondary battery, and the adverse effect on the high temperature secondary battery can be prevented. According to claim 5,
The first and second modes are set according to the temperature of the high temperature secondary battery, and it is possible to prevent adverse effects on the high temperature secondary battery.
【００１５】請求項６によれば、高温二次電池の保護を
確実に行い得ることができる。請求項７によれば、高温
二次電池の状態を表示できる。According to the sixth aspect, it is possible to surely protect the high temperature secondary battery. According to claim 7, the state of the high temperature secondary battery can be displayed.
【００１６】[0016]
【実施例】 以下、本発明をナトリウム−硫黄電池から
なる高温二次電池の電圧測定装置に具体化した一実施例
を図面に基づいて説明する。図１に示すように、高温二
次電池としての多数のナトリウム−硫黄電池よりなるモ
ジュールＭ１〜Ｍ８は直列に接続されている。なお、こ
れは全電池設備の一部である。各モジュールＭ１〜Ｍ８
には熱電対からなる検知手段としての温度センサＳ１〜
Ｓ８がそれぞれ付設されている。各温度センサＳ１〜Ｓ
８はモジュールＭ１〜Ｍ８の温度をそれぞれ検出してそ
の検出信号を制御手段としてのコントローラＣに出力す
る。EXAMPLE An example in which the present invention is embodied in a voltage measuring device for a high temperature secondary battery including a sodium-sulfur battery will be described with reference to the drawings. As shown in FIG. 1, modules M1 to M8 each including a large number of sodium-sulfur batteries as high-temperature secondary batteries are connected in series. This is a part of all battery equipment. Each module M1 to M8
Are temperature sensors S1 to S1 as detection means including thermocouples.
Each S8 is attached. Each temperature sensor S1 to S
Reference numeral 8 detects the temperature of each of the modules M1 to M8 and outputs the detection signal to the controller C as a control means.
【００１７】モジュールＭ１のプラス側及び各モジュー
ルＭ１〜Ｍ８間の接続点には、ヒューズ１，抵抗２，有
接点スイッチとしての有接点リレーＲ１〜Ｒ８，無接点
スイッチとしての無接点リレーｒ１，ｒ３，ｒ５，ｒ７
・・・・を直列に接続したプラス側直列回路（以下プラ
ス側回路という）１１〜１８が接続されている。モジュ
ールＭ８のマイナス側及び各モジュールＭ１〜Ｍ８間の
接続点には、ヒューズ１，抵抗２及び有接点リレーＲ２
〜Ｒ８を共用し、無接点スイッチとしての無接点リレー
ｒ２，ｒ４，ｒ６，ｒ８・・・・を直列に接続したマイ
ナス側直列回路（以下マイナス側回路という）１９〜２
６が接続されている。なお、マイナス側回路２６の有接
点リレーＲ９は共用されていない。At the connection point between the positive side of the module M1 and each of the modules M1 to M8, the fuse 1, the resistor 2, the contact relays R1 to R8 as contact switches, and the contactless relays r1 and r3 as contactless switches. , R5, r7
.. are connected in series, and positive side series circuits (hereinafter referred to as positive side circuits) 11 to 18 are connected. At the minus side of the module M8 and the connection points between the modules M1 to M8, the fuse 1, the resistor 2 and the contact relay R2 are provided.
... R8 is shared, and a minus side series circuit (hereinafter referred to as a minus side circuit) 19-2 in which non-contact relays r2, r4, r6, r8 ...
6 is connected. The contact relay R9 of the minus side circuit 26 is not shared.
【００１８】前記プラス側回路１１〜１８はプラス側回
路１１〜１４及びプラス側回路１５〜１８に２分割され
て、それらの回路群１１〜１４及び１５〜１８はそれぞ
れ無接点リレーｒ２１，ｒ２３に接続されている。無接
点リレーｒ２１，ｒ２３は電圧絶縁変換手段としての１
個の絶縁アンプ５の一次側に接続されている。マイナス
側回路１９〜２６は、マイナス側回路１９〜２２及びマ
イナス側回路２３〜２６は２分割されて、それらの回路
群１９〜２２及び２３〜２６はそれぞれ無接点リレーｒ
２２，ｒ２４に接続されている。無接点リレーｒ２２，
ｒ２４は絶縁アンプ５の一次側に接続されている。The plus side circuits 11 to 18 are divided into plus side circuits 11 to 14 and plus side circuits 15 to 18, and the circuit groups 11 to 14 and 15 to 18 are respectively connected to non-contact relays r21 and r23. It is connected. The contactless relays r21 and r23 are 1 as voltage insulation conversion means.
It is connected to the primary side of each insulation amplifier 5. In the minus side circuits 19 to 26, the minus side circuits 19 to 22 and the minus side circuits 23 to 26 are divided into two, and the circuit groups 19 to 22 and 23 to 26 are contactless relays r, respectively.
22 and r24. Solid state relay r22,
The r24 is connected to the primary side of the isolation amplifier 5.
【００１９】前記各有接点リレーＲ１〜Ｒ９のコイル及
び各無接点リレーｒ１〜ｒ２４の駆動用端子はコントロ
ーラＣにそれぞれ接続されている。コントローラＣは前
記温度センサＳ１〜Ｓ８からの検出信号に基づいて、有
接点リレーＲ１〜Ｒ９及び無接点リレーｒ１〜ｒ２４を
開閉するようになっている。The coils of the contact relays R1 to R9 and the driving terminals of the contactless relays r1 to r24 are connected to the controller C, respectively. The controller C opens and closes the contact relays R1 to R9 and the non-contact relays r1 to r24 based on the detection signals from the temperature sensors S1 to S8.
【００２０】前記絶縁アンプ５の二次側には１個のデプ
レクサ７が接続されている。デプレクサ７の出力端子に
は、前記各モジュールＭ１〜Ｍ８と対応する表示装置Ｖ
１〜Ｖ８が接続されている。デプレクサ７にはコントロ
ーラＣが接続されている。One deplexer 7 is connected to the secondary side of the isolation amplifier 5. The output terminal of the deplexer 7 has a display device V corresponding to each of the modules M1 to M8.
1 to V8 are connected. A controller C is connected to the deplexer 7.
【００２１】次に、本実施例における作用について説明
する。各モジュールＭ１〜Ｍ８の電圧測定は、まず、モ
ジュールＭ１側から行われる。コントローラＣは温度セ
ンサＳ１〜Ｓ８からの検出信号に基づき、モジュールＭ
１〜Ｍ８の温度が２５０℃以上か否かを判別する。そし
て、モジュールＭ１〜Ｍ８の温度が２５０℃以上の場合
には、コントローラＣは第１のモードを設定する。この
第１のモードにおいては、コントローラＣは全有接点リ
レーＲ１〜Ｒ９を閉路状態に保持する。そして、コント
ローラＣはモジュールＭ１に接続されたプラス側回路１
１及びマイナス側回路１９の無接点リレーｒ１，ｒ２と
それらの回路１１，１９に接続された無接点リレーｒ２
１，ｒ２２に制御信号を与えて無接点リレーｒ１，ｒ
２、ｒ２１，ｒ２２を一定時間（１秒程度）閉状態にす
る。これにより、モジュールＭ１の電圧が絶縁アンプ５
により絶縁変換された状態でデプレクサ７に出力され
る。Next, the operation of this embodiment will be described. The voltage measurement of each module M1 to M8 is first performed from the module M1 side. The controller C detects the module M based on the detection signals from the temperature sensors S1 to S8.
It is determined whether the temperatures of 1 to M8 are 250 ° C. or higher. Then, when the temperature of the modules M1 to M8 is 250 ° C. or higher, the controller C sets the first mode. In the first mode, the controller C holds all the contact relays R1 to R9 in the closed state. The controller C is connected to the module M1 and the plus side circuit 1 is connected.
1 and the contactless relays r1 and r2 of the minus side circuit 19 and the contactless relays r2 connected to those circuits 11 and 19.
Control signals are applied to 1, r22 to provide non-contact relays r1, r
2, r21, r22 are closed for a fixed time (about 1 second). As a result, the voltage of the module M1 becomes
Is output to the deplexer 7 in a state of being insulated and converted by.
【００２２】コントローラＣはデプレクサ７を制御して
モジュールＭ１と対応する表示装置Ｖ１を動作させ、モ
ジュールＭ１の電圧を表示させる。従って、モジュール
Ｍ１の放電深度や残存容量を判定できる。The controller C controls the deplexer 7 to operate the display device V1 corresponding to the module M1 to display the voltage of the module M1. Therefore, the discharge depth and the remaining capacity of the module M1 can be determined.
【００２３】モジュールＭ１の測定が終了するとコント
ローラＣは、有接点リレーＲ１〜Ｒ９を閉状態に保持し
たままの状態で、前記無接点リレーｒ１，ｒ２，ｒ２
１，ｒ２２を開路するとともに、モジュールＭ２のプラ
ス側直列回路１２及びマイナス側回路２０と、それらの
回路に接続された無接点リレーｒ３，ｒ４及び無接点リ
レーｒ２１，ｒ２２を一定時間閉状態にする。そして、
コントローラＣはデプレクサ７を介して、モジュールＭ
２に対応する表示装置Ｖ２を表示動作させる。When the measurement of the module M1 is completed, the controller C keeps the contact relays R1 to R9 in the closed state and the contactless relays r1, r2, r2.
1, r22 are opened, and the plus side series circuit 12 and the minus side circuit 20 of the module M2 and the non-contact relays r3, r4 and the non-contact relays r21, r22 connected to these circuits are closed for a certain period of time. . And
The controller C transfers the module M via the deplexer 7.
The display device V2 corresponding to 2 is operated for display.
【００２４】以上のようにして、全有接点リレーＲ１〜
Ｒ８の閉路下において各モジュールＭ１〜Ｍ８の出力に
対する走査が行われ、モジュールＭ１〜Ｍ８の電圧の測
定が行われる。なお、プラス側回路１５〜１８、マイナ
ス側回路１５〜１８の走査に際しては無接点リレーｒ２
３，ｒ２４が開閉される。As described above, all contact relays R1 to R1
Under the closed circuit of R8, the outputs of the modules M1 to M8 are scanned, and the voltages of the modules M1 to M8 are measured. When scanning the plus side circuits 15-18 and the minus side circuits 15-18, the contactless relay r2 is used.
3, r24 is opened and closed.
【００２５】通常の高温状態では、有接点リレーＲ１〜
Ｒ８を常時閉状態とし、不必要な開閉動作を行わないよ
うにすることにより有接点リレーＲ１〜Ｒ８の耐用年数
を向上させることができる。無接点リレーｒ１〜ｒ８，
ｒ２１〜ｒ２４は開閉回数とあまり関係なく長寿命が期
待できる。In a normal high temperature state, the contact relays R1 to R1
The service life of the contact relays R1 to R8 can be improved by keeping R8 normally closed and preventing unnecessary opening and closing operations. Solid state relays r1 to r8,
A long life can be expected for r21 to r24 regardless of the number of times of opening and closing.
【００２６】一方、コントローラＣは温度センサＳ２か
らの検出信号に基づきモジュールＭ２の温度が２５０℃
以下であると判断した場合には、コントローラＣは第２
のモードを設定する。この第２のモードにおいて、コン
トローラＣはモジュールＭ１〜Ｍ８の計測を１サイクル
とし、サイクル間の走査休止間隔を長く設定するととも
に、有接点リレーＲ１〜Ｒ８と無接点リレーｒ１〜ｒ２
４の同時開閉による走査を行う。On the other hand, the controller C determines that the temperature of the module M2 is 250 ° C. based on the detection signal from the temperature sensor S2.
If it is determined that
Set the mode of. In this second mode, the controller C sets the measurement of the modules M1 to M8 as one cycle, sets a long scanning pause interval between the cycles, and also has contact relays R1 to R8 and non-contact relays r1 to r2.
Scanning by simultaneous opening and closing of 4 is performed.
【００２７】すなわち、モジュールＭ１の電圧を測定す
る場合には、プラス側回路１１及びマイナス側回路１９
の有接点リレーＲ１，Ｒ２、無接点リレーｒ１，ｒ２と
それらに接続された無接点リレーｒ２１，ｒ２３を同時
に開閉させる。以下同様にして各モジュールＭ２〜Ｍ８
の電圧の測定を行わせる。That is, when the voltage of the module M1 is measured, the plus side circuit 11 and the minus side circuit 19
The contact relays R1 and R2, the contactless relays r1 and r2, and the contactless relays r21 and r23 connected thereto are simultaneously opened and closed. Similarly, each module M2 to M8
Let's measure the voltage of.
【００２８】従って、ナトリウム−硫黄電池にダメージ
を与えやすい低温時に、電圧測定時の短時間以外は確実
に回路を遮断でき、ナトリウム−硫黄電池の計測系の影
響による故障を回避できる。Therefore, at a low temperature where the sodium-sulfur battery is likely to be damaged, the circuit can be reliably cut off except for a short time during the voltage measurement, and a failure due to the influence of the measurement system of the sodium-sulfur battery can be avoided.
【００２９】上記のように本実施例では、１つの絶縁ア
ンプ５で複数のモジュールＭ１〜Ｍ８を電圧絶縁変換さ
せることができるので、装置を小型化でき、狭いスペー
スへの設置が可能となる。また、リレー回路のみで安価
に構成できる。As described above, in this embodiment, since the plurality of modules M1 to M8 can be voltage-insulated and converted by one insulation amplifier 5, the device can be downsized and can be installed in a narrow space. Further, it can be constructed at a low cost only with the relay circuit.
【００３０】また、本実施例では、スイッチ回路として
のマルチプレクサ６を無接点スイッチである無接点リレ
ーｒ１〜ｒ１６、ｒ２１〜ｒ２４に有接点スイッチであ
る有接点リレーＲ１〜Ｒ９を直列接続して構成した。そ
して、モジュールＭ１〜Ｍ８の温度が設定温度よりも低
い場合には、モジュールＭ１〜Ｍ８の計測を１サイクル
とし、サイクル間の走査休止間隔を長く設定するように
した。また、電圧測定する以外のモジュールＭ１〜Ｍ８
と接続する有接点リレーＲ１〜Ｒ９を開状態に保持する
ようにした。これにより、計測の短時間以外は温度の低
いモジュールＭ１〜Ｍ８と絶縁アンプ５との間が完全に
断たれ、モジュールＭ１〜Ｍ８の損傷を防止できる。ま
た、本実施例では、モジュールＭ１〜Ｍ８と絶縁アンプ
５との間の回路に無接点スイッチである無接点リレーｒ
１〜ｒ１６と無接点リレーｒ２１〜ｒ２４を２つ使用す
るとともに、モジュールＭ１〜Ｍ４の計測回路とモジュ
ールＭ５〜Ｍ８の計測回路を分離していることから、走
査装置の耐圧性を向上することができる。Further, in the present embodiment, the multiplexer 6 as a switch circuit is constructed by connecting the contactless relays r1 to r16 and r21 to r24 which are contactless switches to the contactless relays R1 to R9 which are contact switches in series. did. Then, when the temperature of the modules M1 to M8 is lower than the set temperature, the measurement of the modules M1 to M8 is set as one cycle, and the scan pause interval between the cycles is set to be long. In addition, modules M1 to M8 other than voltage measurement
The reed relays R1 to R9 connected to are held in the open state. As a result, the modules M1 to M8 having a low temperature and the isolation amplifier 5 are completely disconnected except for a short measurement time, and the modules M1 to M8 can be prevented from being damaged. Further, in this embodiment, a non-contact relay r which is a non-contact switch is provided in the circuit between the modules M1 to M8 and the isolation amplifier 5.
1 to r16 and two non-contact relays r21 to r24 are used, and the measuring circuits of the modules M1 to M4 and the measuring circuits of the modules M5 to M8 are separated, so that the pressure resistance of the scanning device can be improved. it can.
【００３１】特に、この実施例においては、コントロー
ラＣにより各スイッチを走査動作させるため、各モジュ
ールＭ１〜Ｍ８毎に絶縁アンプ５を設ける必要がなく、
装置の構成を簡単にして小型化，低コスト化を図ること
ができる。しかも、各モジュールＭ１〜Ｍ８毎に絶縁ア
ンプ５を設けたわけではないので、上記従来技術の装置
とは異なり、ナトリウム−硫黄電池の低温時の測定にお
いて悪影響が与えられるのを防止できる。In particular, in this embodiment, since each switch is scanned by the controller C, it is not necessary to provide the isolation amplifier 5 for each module M1 to M8.
It is possible to simplify the structure of the device and reduce the size and cost. Moreover, since the isolation amplifier 5 is not provided for each of the modules M1 to M8, it is possible to prevent the sodium-sulfur battery from being adversely affected in the measurement at low temperature, unlike the above-mentioned conventional device.
【００３２】なお、本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次の
ように構成することもできる。 （１）上記実施例では、モジュールＭ１〜Ｍ８毎の電圧
測定を行うように構成したが、ブロック毎、複数モジュ
ール毎に電圧測定するような構成としてもよい。The present invention is not limited to the above embodiments, but may be configured as follows, for example, without departing from the spirit of the invention. (1) In the above embodiment, the voltage measurement is performed for each of the modules M1 to M8, but the voltage measurement may be performed for each block and each module.
【００３３】（２）上記実施例では、温度センサＳ１〜
Ｓ８は各モジュールＭ１〜Ｍ８毎に設けたが、温度セン
サは１つのモジュールのみに設けて、残りのモジュール
の温度を推測により判定するように構成してもよい。(2) In the above embodiment, the temperature sensors S1 to S1.
Although S8 is provided for each of the modules M1 to M8, the temperature sensor may be provided for only one module and the temperature of the remaining modules may be estimated and determined.
【００３４】（３）絶縁アンプ５を分割された回路毎に
設けること。従って、上記実施例では絶縁アンプ５は合
計２個となる。以上の各実施例によって把握されるその
他の技術的思想について、その効果とともに以下に記載
する。(3) The isolation amplifier 5 is provided for each divided circuit. Therefore, in the above embodiment, there are two isolation amplifiers 5 in total. Other technical ideas grasped by the above respective embodiments will be described below together with their effects.
【００３５】（１）請求項１において、各高温二次電池
に接続されたスイッチ回路を複数の群に分割し、各群に
スイッチを設けた走査装置。このように構成すれば、装
置の耐圧性を向上できる。(1) The scanning device according to claim 1, wherein the switch circuit connected to each high temperature secondary battery is divided into a plurality of groups, and each group is provided with a switch. With this configuration, the pressure resistance of the device can be improved.
【００３６】（２）請求項１〜６のいずれかにおいて、
高温二次電池はナトリウム−硫黄電池である走査装置。
従って、電池保護の点から適切である。(2) In any one of claims 1 to 6,
The high temperature secondary battery is a sodium-sulfur battery scanning device.
Therefore, it is appropriate in terms of battery protection.
【００３７】[0037]
【発明の効果】 以上詳述したように、本発明によれ
ば、以下のような効果を奏する。請求項１によれば、絶
縁アンプを複数設けることなく、高温二次電池の放電深
度や残存容量を判定でき、装置の構成を簡単、かつ、小
型、安価にできる。As described above in detail, according to the present invention, the following effects can be obtained. According to the first aspect, the depth of discharge and the remaining capacity of the high temperature secondary battery can be determined without providing a plurality of insulation amplifiers, and the configuration of the device can be simple, small and inexpensive.
【００３８】請求項２によれば、有接点スイッチにより
高温二次電池から計測回路を完全に開放できる。請求項
３及び請求項４によれば、例えば、高温二次電池の状態
に応じて第１、第２のモードが設定され、高温二次電池
への悪影響を防止することができる。According to the second aspect, the measuring circuit can be completely opened from the high temperature secondary battery by the contact switch. According to the third and fourth aspects, for example, the first mode and the second mode are set according to the state of the high temperature secondary battery, and it is possible to prevent adverse effects on the high temperature secondary battery.
【００３９】請求項５によれば、高温二次電池の温度に
応じて第１、第２のモードが設定され、高温二次電池へ
の悪影響を防止することができる。請求項６によれば、
高温二次電池の保護を確実に行い得て、寿命向上に有効
である。According to the fifth aspect, the first and second modes are set according to the temperature of the high temperature secondary battery, and it is possible to prevent adverse effects on the high temperature secondary battery. According to claim 6,
It is possible to surely protect the high temperature secondary battery, and it is effective in extending the life.
【００４０】請求項７によれば、高温二次電池の状態を
表示して放電深度や残存容量を確実に把握することがで
きる。According to the seventh aspect, the state of the high temperature secondary battery can be displayed to surely grasp the depth of discharge and the remaining capacity.
【図１】 本発明を具体化した一実施例における走査装
置の回路図である。FIG. 1 is a circuit diagram of a scanning device according to an embodiment of the present invention.
【図２】 従来の走査定器の回路図である。FIG. 2 is a circuit diagram of a conventional scanning meter.
５…電圧絶縁変換手段としての絶縁アンプ、６…スイッ
チ回路としてのマルチプレクサ、Ｍ１〜Ｍ８…高温二次
電池としてのナトリウム−硫黄電池からなるモジュー
ル、Ｒ１〜Ｒ９…スイッチ回路を構成する有接点スイッ
チとしてのリレー、ｒ１〜ｒ１６、ｒ２１〜ｒ２４…ス
イッチ回路を構成する無接点スイッチとしての無接点リ
レー、Ｓ１〜Ｓ８…検知手段としての温度センサ、Ｃ…
制御手段としてのコントローラ5 ... Insulation amplifier as voltage insulation conversion means, 6 ... Multiplexer as switch circuit, M1 to M8 ... Module composed of sodium-sulfur battery as high temperature secondary battery, R1 to R9 ... As contact switch forming switch circuit Relays, r1 to r16, r21 to r24 ... Non-contact relays as non-contact switches constituting switch circuits, S1 to S8 ... Temperature sensors as detection means, C ...
Controller as control means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 丸山 正 東京都千代田区神田神保町２丁目２番30号 東京電力 株式会社開発研究所内 (72)発明者 川口 敏幸 名古屋市瑞穂区須田町２番56号 日本碍子 株式会社内 (72)発明者 阿部 浩幸 名古屋市瑞穂区須田町２番56号 日本碍子 株式会社内 (72)発明者 工藤 浩記 東京都武蔵野市中町二丁目９番32号 横河 電機 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tadashi Maruyama 2-30 2 Kanda Jinbocho, Chiyoda-ku, Tokyo Tokyo Electric Power Co., Inc. Research Laboratory (72) Inventor Toshiyuki Kawaguchi 2-56 Sudacho, Mizuho-ku, Nagoya Japan Insulator Co., Ltd. (72) Inventor Hiroyuki Abe No. 2-56 Sudamachi, Mizuho-ku, Nagoya City Japan Insulator Co., Ltd. (72) Inventor Hiroki Kudo 2-9-32 Nakamachi, Musashino City, Tokyo Yokogawa Electric Co., Ltd. Within
Claims (7)
ナス側にそれぞれ接続され、スイッチを有するスイッチ
回路と、 予め定められたプラス側及びマイナス側のスイッチ回路
の組を順次選択して、選択された回路のスイッチを閉路
させる制御手段と、 スイッチ回路の出力側に一次側において接続された電圧
絶縁変換手段と、 電圧絶縁変換手段の二次側に接続された高温二次電池の
電圧を検出する検出手段とよりなる走査装置。1. A plurality of high temperature secondary batteries are respectively connected to the plus side and the minus side, and a switch circuit having a switch and a set of a predetermined plus side and a minus side switch circuit are sequentially selected and selected. Control circuit that closes the switch of the connected circuit, voltage insulation conversion means connected to the output side of the switch circuit on the primary side, and voltage of the high temperature secondary battery connected to the secondary side of the voltage insulation conversion means And a scanning device comprising a detecting means for performing the scanning.
れた有接点スイッチ及び無接点スイッチである請求項１
に記載の走査装置。2. The switch of the switch circuit is a contact switch and a contactless switch connected in series.
The scanning device according to.
で、無接点スイッチを開閉する第１のモードと、有接点
スイッチ及び無接点スイッチの双方を同時に開閉する第
２のモードとを設定する請求項２に記載の走査装置。3. The control means sets a first mode for opening and closing the contactless switch and a second mode for simultaneously opening and closing both the contact switch and the contactless switch when the contact switch is closed. The scanning device according to claim 2.
で無接点スイッチを開閉する第１のモードと、有接点ス
イッチを間欠的に開閉させた状態で無接点スイッチを開
閉する第２のモードとを設定する請求項２に記載の走査
装置。4. A first mode in which the control means opens and closes the contactless switch when the contact switch is closed, and a second mode in which the contactless switch opens and closes while the contact switch is intermittently opened and closed. The scanning device according to claim 2, wherein:
段を設け、制御手段は検知手段からの検知信号を入力し
て、高温二次電池の温度に応じて第１，第２のいずれか
のモードを設定する請求項３又は請求項４に記載の走査
装置。5. A detection means for detecting the temperature of each high temperature secondary battery is provided, and the control means inputs a detection signal from the detection means to determine which of the first and second temperatures the high temperature secondary battery has. The scanning device according to claim 3, wherein the mode is set.
が設定され、低温の時に第２のモードが設定される請求
項５に記載の走査装置。6. The scanning device according to claim 5, wherein the first mode is set when the high temperature secondary battery has a high temperature, and the second mode is set when the high temperature secondary battery has a low temperature.
が接続され、そのデプレクサに表示手段が接続された請
求項１〜請求項６のいずれかに記載の走査装置。7. The scanning device according to claim 1, wherein a deplexer is connected to the secondary side of the voltage isolation conversion means, and the display means is connected to the deplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6275393A JP2928732B2 (en) | 1994-11-09 | 1994-11-09 | High temperature secondary battery scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6275393A JP2928732B2 (en) | 1994-11-09 | 1994-11-09 | High temperature secondary battery scanning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08138753A true JPH08138753A (en) | 1996-05-31 |
| JP2928732B2 JP2928732B2 (en) | 1999-08-03 |
Family
ID=17554879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6275393A Expired - Fee Related JP2928732B2 (en) | 1994-11-09 | 1994-11-09 | High temperature secondary battery scanning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2928732B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014027A (en) * | 1998-06-23 | 2000-01-14 | Hitachi Ltd | Control device for capacitor |
| US8487588B2 (en) | 2009-11-24 | 2013-07-16 | Samsung Sdi Co., Ltd. | Battery pack |
| JP2014093864A (en) * | 2012-11-02 | 2014-05-19 | Toyota Industries Corp | Battery |
-
1994
- 1994-11-09 JP JP6275393A patent/JP2928732B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014027A (en) * | 1998-06-23 | 2000-01-14 | Hitachi Ltd | Control device for capacitor |
| US8487588B2 (en) | 2009-11-24 | 2013-07-16 | Samsung Sdi Co., Ltd. | Battery pack |
| JP2014093864A (en) * | 2012-11-02 | 2014-05-19 | Toyota Industries Corp | Battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2928732B2 (en) | 1999-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6570387B2 (en) | Multiplex voltage measurement apparatus | |
| WO2013147493A1 (en) | Insulation resistance measurement device having malfuction self-diagnosis function, and method for self-diagnosing malfuction using same | |
| US6462510B1 (en) | Battery voltage detector | |
| JP3672183B2 (en) | Battery voltage detector | |
| JP6382453B2 (en) | Battery monitoring device | |
| US6541980B2 (en) | Multiplex voltage measurement apparatus | |
| EP3779486B1 (en) | Insulation detection circuit and detection method, and battery management system | |
| CN110361597A (en) | Ground-fault detection arrangement | |
| CN108199099A (en) | A kind of battery protecting apparatus and its control method | |
| WO2014084628A1 (en) | Apparatus for measuring current of battery and method therefor | |
| JP2002281681A (en) | Monitoring method for battery pack dc voltage detector | |
| US11555863B2 (en) | Ground fault detection device | |
| JP4472820B2 (en) | Battery voltage detection device and detection method | |
| US8305084B2 (en) | Voltage measuring apparatus for assembled battery | |
| WO2022025725A1 (en) | Battery management device, battery pack, battery system, and battery management method | |
| JPH08138753A (en) | Scanning device for high temperature secondary battery | |
| JP4571888B2 (en) | Voltage measuring device and degradation determination method thereof | |
| CN108427057B (en) | Double-source insulation leakage detection circuit and insulation leakage detection method thereof | |
| WO2023287180A1 (en) | Battery diagnosis device, battery pack, electric vehicle, and battery diagnosis method | |
| JP4508977B2 (en) | Assembled battery voltage measuring device and assembled battery voltage measuring method | |
| JP2576267B2 (en) | Battery measurement circuit | |
| CN219016435U (en) | Insulation resistance testing device | |
| US20220258635A1 (en) | Charging device for a traction battery | |
| WO2023038398A1 (en) | Battery diagnosis device, battery management system, battery pack, electric vehicle, and battery diagnosis method | |
| WO2024058625A1 (en) | Battery diagnosis apparatus, battery diagnosis method, battery pack, and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080514 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100514 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100514 Year of fee payment: 11 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110514 Year of fee payment: 12 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120514 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120514 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130514 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130514 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140514 Year of fee payment: 15 |
|
| LAPS | Cancellation because of no payment of annual fees |