JP7442918B2 - ミー散乱を用いたガス発生感知装置を含むバッテリーパック及びこれを用いたガス検出方法 - Google Patents
ミー散乱を用いたガス発生感知装置を含むバッテリーパック及びこれを用いたガス検出方法 Download PDFInfo
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Description
dI=-Ioσdx
I(x)=Ioexp(-σx)
ここで、I(x)は透過光の強度、Ioは入射光の強度、σはエアロゾル消散係数、xは吸収層の厚さを示す。前記式を用いて、光が媒質、すなわち発生したガス層を通過する前(x=0)から通過した後(x=X)まで積分すれば、次のように光が媒質を通過した後の光の強度を計算することができる。
110 バッテリーモジュール
120 ラックハウジング
130 下部ハウジング
140 上部ハウジング
200 レーザー照射部
300 レーザー受光部
400 制御部
500 アラーム部
Claims (15)
- 一つ以上の単位セルを含むバッテリーモジュールと、
一つ以上の前記バッテリーモジュールを収納するラックハウジングと、
上部が開放した形態の内部空間を備え、前記内部空間に前記バッテリーモジュールを収容する下部ハウジングと、
前記下部ハウジングの上部開放部に結合され、内部空間を備えて前記バッテリーモジュールを収容する上部ハウジングと、
前記ラックハウジングの一面に設けられ、ミー散乱を用いてガスを感知するレーザーユニットと、を含む、バッテリーパック。 - 前記レーザーユニットは、
バッテリーパックの複数のバッテリーを収納するラックハウジングの一面に形成され、レーザー光を照射するレーザー照射部と、
前記レーザー照射部から照射されたレーザー光を受信し、前記レーザー照射部と対面するラックハウジングの他面に形成されたレーザー受光部と、
前記レーザー受光部で受信した前記レーザー光の強度を参照値と比較してガス発生を判断する制御部と、を含む、請求項1に記載のバッテリーパック。 - 前記レーザーユニットは二つ以上のユニットを含むことを含む、請求項2に記載のバッテリーパック。
- 前記二つ以上のレーザーユニットは、単位セルを挟んでレーザーユニットが平行に位置することを含む、請求項3に記載のバッテリーパック。
- 前記二つ以上のレーザーユニットは単位セルを挟んでレーザーユニットが鏡面対称に位置する、請求項3に記載のバッテリーパック。
- 前記レーザーユニットは、
バッテリーパックの複数のバッテリーを収納するラックハウジングの一面に形成され、レーザー光を照射するレーザー照射部と、
前記レーザー照射部から照射したレーザー光を受信し、前記レーザー照射部と対面するラックハウジングの他面に形成されたレーザー受光部と、
前記レーザー受光部で受信した前記レーザー光の強度を参照値と比較してガス発生を判断する制御部と、を含む、請求項3に記載のバッテリーパック。 - 前記二つ以上のレーザーユニットは、
バッテリーパックの複数のバッテリーを収納するラックハウジングの一面に形成され、レーザー光を照射する二つ以上のレーザー照射部と、
前記レーザー照射部から照射したレーザー光を受信し、前記レーザー照射部と対面するラックハウジングの他面に形成された二つ以上のレーザー受光部と、を含み、
前記二つ以上のレーザーユニットは一つの制御部のみを有し、
前記制御部は、前記レーザー受光部で受信した前記レーザー光の強度を参照値と比較してガス発生を判断し、
前記制御部に前記二つ以上のレーザーユニットが連結される、請求項3~5のいずれか一項に記載のバッテリーパック。 - 前記レーザー照射部は、前記バッテリーパックで発生するガス粒子のサイズと波長が同じかそれより小さいレーザー光を照射する、請求項2に記載のバッテリーパック。
- 前記ガス粒子の直径は0.1μm~10μmである、請求項8に記載のバッテリーパック。
- 前記レーザーユニットは、アラーム部をさらに含む、請求項2に記載のバッテリーパック。
- 1)レーザー受光部で受信したレーザー光の散乱比を、予めミー散乱を考慮して設定した散乱比と比較する段階と、
2)前記段階1)で前記受信したレーザー光の散乱比が予め設定した散乱比と同じかそれより大きい場合、信号を発生させる段階と、
3)制御部から伝達された信号によってアラーム部からアラームを提供する段階と、を含む、バッテリーパックのガス検出方法。 - 前記レーザー光の散乱比は、受信されたレーザー光の強度を参照値に設定された初期レーザー光の強度で割った値である、請求項11に記載のバッテリーパックのガス検出方法。
- 前記予め設定した散乱比は、各バッテリーパックで検出されるガスによる光損失値である、請求項11に記載のバッテリーパックのガス検出方法。
- 前記制御部は、前記段階2)と段階3)との間に、
a)前記段階2)で信号が発生する場合、以前の時間値に測定時間値を足す段階をさらに含む、請求項11に記載のバッテリーパックのガス検出方法。 - 前記段階a)と段階3)との間に、
b)前記段階a)で得られた値を予め設定した時間と比較する段階と、
c)前記b)段階で得られた値が予め設定した時間より大きいか同じ場合、信号を発生させる段階と、をさらに含む、請求項14に記載のバッテリーパックのガス検出方法。
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JP2009104808A (ja) | 2007-10-19 | 2009-05-14 | Toshiba Corp | 鉛蓄電池装置 |
US20190046820A1 (en) | 2016-09-21 | 2019-02-14 | Lg Chem, Ltd. | Energy storage system and fire control method of the energy storage system |
JP2019159742A (ja) | 2018-03-13 | 2019-09-19 | 古河電気工業株式会社 | 火災煙検知装置 |
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JPS604749A (ja) | 1983-06-23 | 1985-01-11 | Matsushita Electric Ind Co Ltd | 給湯装置 |
JPS6034934U (ja) | 1983-08-18 | 1985-03-09 | 池田物産株式会社 | シ−トリフタ− |
JPH0344793U (ja) * | 1989-09-08 | 1991-04-25 | ||
JP4749774B2 (ja) * | 2005-06-16 | 2011-08-17 | 本田技研工業株式会社 | 組電池 |
JP4227991B2 (ja) * | 2005-12-28 | 2009-02-18 | トヨタ自動車株式会社 | 排ガス分析装置および排ガス分析方法 |
CN102859340B (zh) * | 2009-12-16 | 2015-08-05 | Abb研究有限公司 | 光学火焰传感器 |
KR20120111080A (ko) * | 2011-03-31 | 2012-10-10 | 비나텍주식회사 | 셀의 가스 분석 장치 및 이를 이용한 가스 분석 방법 |
KR20140085764A (ko) * | 2012-12-27 | 2014-07-08 | 재단법인 포항산업과학연구원 | 나트륨 유황 전지 및 나트륨 유황 전지 모듈 |
WO2015008762A1 (ja) * | 2013-07-19 | 2015-01-22 | 日本碍子株式会社 | 二次電池異常通報システム |
JP6779090B2 (ja) * | 2016-10-11 | 2020-11-04 | 日本ドライケミカル株式会社 | 二次電池の熱暴走抑止システム |
KR102054218B1 (ko) | 2018-04-27 | 2020-01-22 | 최규현 | 태양전지 셀 및 태양전지 셀의 제조방법 |
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JP2009104808A (ja) | 2007-10-19 | 2009-05-14 | Toshiba Corp | 鉛蓄電池装置 |
US20190046820A1 (en) | 2016-09-21 | 2019-02-14 | Lg Chem, Ltd. | Energy storage system and fire control method of the energy storage system |
JP2019159742A (ja) | 2018-03-13 | 2019-09-19 | 古河電気工業株式会社 | 火災煙検知装置 |
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EP4007041A1 (en) | 2022-06-01 |
KR20210042485A (ko) | 2021-04-20 |
US20220276146A1 (en) | 2022-09-01 |
CN114503335A (zh) | 2022-05-13 |
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