JP5177842B2 - 保護回路および電池パック - Google Patents
保護回路および電池パック Download PDFInfo
- Publication number
- JP5177842B2 JP5177842B2 JP2007271884A JP2007271884A JP5177842B2 JP 5177842 B2 JP5177842 B2 JP 5177842B2 JP 2007271884 A JP2007271884 A JP 2007271884A JP 2007271884 A JP2007271884 A JP 2007271884A JP 5177842 B2 JP5177842 B2 JP 5177842B2
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- JP
- Japan
- Prior art keywords
- temperature
- protection
- protection circuit
- battery pack
- secondary 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.)
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- 239000004065 semiconductor Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
Description
2,102,202 保護回路
3 二次電池
4 温度保護素子
5 保護IC
6 放電制御用FET
7 充電制御用FET
8 NTCサーミスタ
9a,9b,10a,10b,11,13C,13D 端子
12 温度制御回路
12A 抵抗素子
12B サーミスタ
12C FET
R1,R2,R3 抵抗
Claims (2)
- 二次電池と、
前記二次電池の電圧を監視する保護IC、充電制御用半導体スイッチおよび放電制御用半導体スイッチを有する電池パック保護回路と、を備えた電池パックであって、
更に、前記二次電池と直列に接続され、異常高温になると導通状態から遮断状態になって前記二次電池への電流を遮断する温度保護素子を備え、
前記保護回路は、前記保護ICの充電制御用出力端子と前記充電制御用半導体スイッチのゲートの間に抵抗を接続し、前記充電制御用半導体スイッチのゲートとソースの間に、周辺雰囲気の温度上昇により抵抗値が低下する素子を接続してなることを特徴とする電池パック。 - 前記抵抗値が低下する素子はNTCサーミスタであることを特徴とする請求項1記載の電池パック。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007271884A JP5177842B2 (ja) | 2007-10-19 | 2007-10-19 | 保護回路および電池パック |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007271884A JP5177842B2 (ja) | 2007-10-19 | 2007-10-19 | 保護回路および電池パック |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009100605A JP2009100605A (ja) | 2009-05-07 |
JP5177842B2 true JP5177842B2 (ja) | 2013-04-10 |
Family
ID=40703099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007271884A Active JP5177842B2 (ja) | 2007-10-19 | 2007-10-19 | 保護回路および電池パック |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5177842B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104969432A (zh) * | 2013-12-09 | 2015-10-07 | 莫布里克株式会社 | 适用mit技术的高温/过电流自动切断方法及应用该方法的开关 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014003085A1 (en) | 2012-06-27 | 2014-01-03 | Semiconductor Energy Laboratory Co., Ltd. | Power storage unit and solar power generation unit |
JP5937050B2 (ja) * | 2013-10-25 | 2016-06-22 | 横河電機株式会社 | 充電回路 |
JP7323800B2 (ja) | 2019-10-18 | 2023-08-09 | ミツミ電機株式会社 | 二次電池保護回路、二次電池保護装置、電池パック及び温度検出回路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11206025A (ja) * | 1998-01-19 | 1999-07-30 | Matsushita Electric Ind Co Ltd | 電池管理装置及びそれを用いた電池パック |
JP3534309B2 (ja) * | 2000-07-27 | 2004-06-07 | Necトーキン栃木株式会社 | 温度保護付き電池パック |
JP2002281660A (ja) * | 2001-03-21 | 2002-09-27 | Matsushita Electric Ind Co Ltd | 電池パックの保護装置 |
JP4046106B2 (ja) * | 2004-06-16 | 2008-02-13 | 株式会社村田製作所 | 電池パックの保護回路および電池パック |
JP2006121827A (ja) * | 2004-10-21 | 2006-05-11 | Ricoh Co Ltd | 二次電池の保護回路 |
-
2007
- 2007-10-19 JP JP2007271884A patent/JP5177842B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104969432A (zh) * | 2013-12-09 | 2015-10-07 | 莫布里克株式会社 | 适用mit技术的高温/过电流自动切断方法及应用该方法的开关 |
Also Published As
Publication number | Publication date |
---|---|
JP2009100605A (ja) | 2009-05-07 |
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