JP2008084625A - 蓄電装置 - Google Patents
蓄電装置 Download PDFInfo
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Abstract
【解決手段】一つまたは複数の蓄電器を備えた蓄電器モジュールと、複数の温度検出手段と、前記蓄電器モジュールを冷却する冷却手段と、を有する蓄電装置において、前記温度検出手段が、少なくとも、冷却媒体の前記蓄電装置への流入温度及び前記蓄電装置からの流出温度と、前記蓄電器又は前記蓄電器モジュールの少なくとも一方の温度と、を検出することを特徴とする。
【選択図】図1
Description
図1は、本発明の実施例1を示す図である。図に於いて、101は筐体、102は蓄電器モジュール、103は吸入口、104a,104bは温度検出手段、105は排出口、106は制御手段、107は冷却手段である。
103及び排出口105が設けられており、吸入口103及び排出口105付近には温度検出手段104a,104bが配設されている。また、排出口105には冷却手段107が配設されている。これら、温度検出手段104a,104b及び冷却手段107は制御手段106に電気的に接続されている。
105,蓄電器モジュール102の温度から蓄電装置の状態を診断すると、確実に診断できる。すなわち、熱発生源である蓄電器モジュール102の温度より、温度検出手段104bの温度が温度検出手段104aの温度より高くなるべきか否かが明確になり、確実な診断が可能となる。
図2は、本発明の実施例2を示す図である。図に於いて、201は蓄電器、202は電流検出手段、203は電圧検出手段、104a,104b(冷却媒体の吸入・排出温度),102a(蓄電器モジュール温度),204a,204b(蓄電器温度)は温度検出手段、205は選択手段、206はマイクロコンピュータ、207は通信手段である。
203が接続され、電圧検出手段203の出力はマイクロコンピュータ206に入力されている。さらに、温度検出手段204a,204bが蓄電器201に配設され、複数の温度検出手段、即ち、吸入口又は排出口の冷却媒体温度を検出する温度検出手段104a,
104bと、蓄電器温度を検出する204a,204b又は蓄電器モジュールの温度を検出する102aの少なくとも一方、の出力は選択手段205を介してマイクロコンピュータ206に入力されている。マイクロコンピュータ206は冷却手段107,通信手段
207とも接続されている。
104b,204a,204b,102aの選択は適宜切り替えて行う。
104a,104bと、204a,204b又は102aの少なくとも一方と、の値から冷却手段107または、温度検出手段104a,104bなどの異常を診断することが可能であり、信頼性の高い冷却システムを備えた蓄電装置を提供することができる。
Li1.15Mn3Ni4Co3O2,Li1.15Mn3.5Ni3Co3Al0.5O2,
Li1.15Mn3.5Ni3Co3B0.5O2,Li1.15Mn3.5Ni3Co3Fe0.5O2,
Li1.15Mn3.5Ni3Co3Mg0.5O2,LiMn4Ni3Co2O2,
LiMn1/3Ni1/3Co1/3O2,LiMn3Ni4Co3O2,
LiMn3.5Ni3Co3Al0.5O2,LiMn3.5Ni3Co3B0.5O2,
LiMn3.5Ni3Co3Fe0.5O2,LiMn3.5Ni3Co3Mg0.5O2などを用いることができる。中でも、Li1+αMnxNiyCozO2(x+y+z=1,0<x≦1,0<y≦1,0<z≦1,0.01≦α≦0.3を満たす)で表されるリチウム複合酸化物であることが好ましく、Li1+αMnxNiyCozO2(x+y+z=1,0.2≦x≦0.6,
0.1≦y≦0.5,0.05≦z≦0.5,0.01≦α≦0.3を満たす)であることがより好ましい。また、本発明の実施例で用いたLi1.15Mn1/3Ni1/3Co1/3O2は低温特性とサイクル安定性が高くHEV用デバイスの材料として最適である。
12は絶縁材である。
図7は本発明の実施例3を示す図である。本発明の電源装置の一実施形態を適用した、ハイブリッド電気自動車の電源供給の実施形態を示す図である。図に於いて、501はエンジン、502は動力分割伝達機構、503はモータ、504はインバータ、505はシステムコントローラ、506は報知手段、507a,507bは駆動輪、508はドライブシャフトである。
502とドライブシャフト508を介して接続され、駆動輪507a,507bがモータ503とエンジン501とに駆動されるいわゆるパラレルハイブリッド電気自動車を構成している。
図8は本発明の第4の実施例を示す図である。本発明の電源装置の一実施の形態を適用した、分散型電力貯蔵装置の実施の形態を示す図である。図7に於いて、701は商用電源、702は太陽光発電装置、703は負荷装置、704は制御変換器、705は切替器である。
705,制御手段106は双方向通信で結ばれている。
107または温度検出手段104a,104bなどが異常を生じた場合でも、電源装置を安全に制御することができる。
104bなどの異常を認識することが可能となり、適切な対処を取ることが可能となる。
701…商用電源、702…太陽光発電装置、703…負荷装置、704…制御変換器、705…切替器。
Claims (12)
- 一つまたは複数の蓄電器を備えた蓄電器モジュールと、複数の温度検出手段と、前記蓄電器モジュールに冷却媒体を導入し前記蓄電器を冷却する冷却手段と、を有する蓄電装置において、
前記温度検出手段が、少なくとも、冷却媒体の前記蓄電装置への流入温度及び前記蓄電装置からの流出温度と、前記蓄電器又は前記蓄電器モジュールの少なくとも一方の温度と、を測定することを特徴とする蓄電装置。 - 複数の前記温度検出手段の検出値から、前記温度検出手段及び前記冷却手段の状態を診断する制御手段を有することを特徴とする請求項1に記載の蓄電装置。
- 前記蓄電器の稼動状態から、前記温度検出手段及び前記冷却手段の状態を診断する制御手段を有することを特徴とする請求項1に記載の蓄電装置。
- 前記冷却手段の稼動状態から、前記温度検出手段及び前記冷却手段の状態を診断する制御手段を有することを特徴とする請求項1に記載の蓄電装置。
- 前記制御手段が前記温度検出手段または前記冷却手段の異常を診断した場合、前記報知手段が異常を報知することを特徴とする請求項1に記載の蓄電装置。
- 前記蓄電器モジュールの入出力を制限する入出力制御装置を設けた蓄電装置において、前記制御手段が前記温度検出手段または前記冷却手段の異常を診断した場合、前記入出力制御装置は前記蓄電器モジュールの入出力を制限することを特徴とする請求項1に記載の蓄電装置。
- 一つまたは複数の蓄電器を備えた蓄電器モジュールと、複数の温度検出手段と、前記蓄電器モジュールに冷却媒体を導入し前記蓄電器を冷却する冷却手段と、を有する蓄電装置において、
前記温度検出手段が、少なくとも、前記冷却媒体の前記蓄電装置への流入温度及び前記蓄電装置からの流出温度と、前記蓄電器の温度と、を測定することを特徴とする蓄電装置。 - 複数の前記蓄電器に配設された前記温度検出手段の検出値の差がある閾値を越えた場合、前記冷却手段を稼動させることを特徴とする請求項7に記載の蓄電装置。
- 前記蓄電器モジュールの入出力を制限する入出力制御装置を設けた蓄電装置において、複数の前記蓄電器に配設された前記温度検出手段の検出値の差がある閾値を越えた場合、前記入出力制御装置が前記蓄電器モジュールの入出力を制限することを特徴とする請求項7に記載の蓄電装置。
- 前記蓄電装置の状態を報知する報知手段を設けた蓄電装置において、複数の前記蓄電器に配設された前記温度検出手段の検出値の差がある閾値を越えた場合、前記報知手段が異常を報知することを特徴とする請求項7に記載の蓄電装置。
- 複数の蓄電器を備えた蓄電器モジュールと、複数の温度検出手段と、前記蓄電器モジュールに冷却媒体を導入し前記蓄電器を冷却する冷却手段と、を有する蓄電装置において、
前記温度検出手段が、少なくとも、冷却媒体の前記蓄電装置への流入温度及び前記蓄電装置からの流出温度と、前記蓄電器温度と、前記蓄電器モジュール温度と、を測定することを特徴とする蓄電装置。 - 前記温度検出手段が、少なくとも、最も高温である蓄電器及び最も低温である蓄電器の温度を検出することを特徴とする請求項1に記載の蓄電装置。
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