WO2011033558A1 - 2次電池パックシステム - Google Patents
2次電池パックシステム Download PDFInfo
- Publication number
- WO2011033558A1 WO2011033558A1 PCT/JP2009/004625 JP2009004625W WO2011033558A1 WO 2011033558 A1 WO2011033558 A1 WO 2011033558A1 JP 2009004625 W JP2009004625 W JP 2009004625W WO 2011033558 A1 WO2011033558 A1 WO 2011033558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- control signal
- secondary battery
- discharge control
- main body
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
Definitions
- the present invention relates to a system capable of connecting a plurality of battery packs in parallel in a secondary battery pack system for supplying electric power to an electronic device or the like.
- a system that can use conventional secondary battery packs in parallel uses a diode for each battery pack to prevent backflow and connect them in parallel, or a control signal is activated from the main body side to discharge one battery pack at a time. It was a thing.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-229391 discloses a first and second battery block in which a plurality of secondary batteries are connected in series and parallel, and one of the first and second battery blocks.
- One battery terminal to which the other terminal is connected via the first and second switch means the other battery terminal to which the other terminal of the first and second battery blocks is connected, and charging or discharging According to the detected battery capacity, switching means for switching the first and second switch means, capacity detecting means for detecting the respective battery capacities of the first and second battery blocks, and Switching control means for controlling the switching means, and when switching between the first and second switch means, one of the first and second switch means is turned off.
- the battery pack characterized in that the other was set to be turned on is disclosed.
- Battery packs connected in parallel that use diodes to prevent backflow consume power from battery packs with high voltage, and eventually all battery packs connected in parallel are overdischarged at the same time.
- battery packs are removed from the system one by one and then charged, there is a problem that it is difficult to understand the timing of charging.
- the invention according to claim 1 is a secondary battery pack system for supplying electric power to an electronic device.
- a plurality of battery packs, a main body side connection circuit of the plurality of battery packs provided on the electronic device side, and a main body side discharge control signal line provided in the main body side connection circuit, the main body side A discharge control signal line is connected to each control controller of the plurality of battery packs.
- the invention according to claim 2 is the secondary battery pack system according to claim 1, wherein when the battery pack is attached to an electronic device, the discharge control signal line of the control controller is It is connected to the main body side discharge control signal line.
- the invention according to claim 3 is the secondary battery pack system according to claim 1 or claim 2, wherein a battery connection signal for recognizing connection of the battery pack is input to the control controller. It is characterized by.
- the invention according to claim 4 is the secondary battery pack system according to claim 3, wherein the discharge control signal input from the main body side discharge control signal line is pulled up by a pull-up resistor, One of the branches is input through a resistor, and the other is input directly to the control controller.
- the invention according to claim 5 is the secondary battery pack system according to claim 4, wherein the main body side discharge control signal line is connected to the discharge control signals of the plurality of battery packs in the main body side connection circuit.
- the battery connection signal is pulled up by a resistor, and the battery connection signal is connected to the GND terminal in the main body side connection circuit.
- the battery pack when the battery pack is connected to the main body side connection circuit, the battery pack is connected by changing the level of the battery connection signal. It is recognized that the voltage of the discharge control signal is recognized by the control controller in the battery pack and whether discharge is permitted is determined.
- the battery packs connected in parallel measure the voltage, current, and temperature of each battery pack, and transmit the measurement information to the main body side. Can be controlled without determining the battery pack to be discharged by making a determination based on the above measurement information, so that elements and sensors for measurement, connectors for communication, IC chips, etc. Is unnecessary, the system configuration can be simplified, and the cost can be reduced.
- FIG. 1 is a diagram showing an outline of a circuit configuration of one battery pack constituting the secondary battery pack system according to the embodiment of the present invention.
- 100 is a battery pack
- 110 is a control controller
- CL is a secondary battery cell
- SW is a discharge switch
- R1, R2, and R3 are resistors
- T1, T2, T3, and T4 are connection terminals
- 200 is an electronic device. Respectively.
- the electric power charged in the secondary battery cell CL of the battery pack 100 is supplied to the electronic device 200 via the discharge switch SW that is turned on / off by the control of the control controller 110.
- this battery pack is used. This is intended for a secondary battery pack system in which 100 is used in parallel.
- the control controller 110 constituted by a microcomputer or the like has an N-ch open drain output port, an A / D conversion input port, and an input port. Based on inputs from these ports, the discharge switch SW is controlled. The power supply to the electronic device 200 is controlled by turning on and off.
- the N-ch open drain output port of the control controller 110 outputs a signal indicating the discharge (switch) state of the own battery pack.
- the A / D conversion input port of the control controller 110 has a function of taking in a signal indicating the discharge (switch) state of the own battery pack at a constant cycle.
- the input port of the control controller 110 confirms the connection between the battery pack and the main body. If the battery pack is not connected to the main body, the discharge switch is turned off and the signal capture cycle of the A / D conversion input port is set. It has a function of slowing down or stopping the operation of the controller. This function is for suppressing power consumed in the battery pack.
- the battery pack 100 is provided with four connection terminals T1 to T4, and these terminals are connected to the electronic device 200.
- connection terminal T1 is a power supply terminal (BATT +), the connection terminal T2 is a discharge control signal terminal, the connection terminal T3 is a battery connection signal terminal, and the connection terminal T4 is a ground terminal (GND). is there.
- the discharge control signal input from the connection terminal T2 is pulled up by the resistor R2 in the battery pack 100, branched in two directions, and input to the control controller 110.
- One of the two branches is connected to the N-ch open drain output port via the resistor R1, and the other is directly connected to the AD conversion port.
- the discharge control signal of the battery pack 100 that is discharging has a mechanism in which the N-ch open drain output port is set to a low state, thereby notifying other battery packs that they are discharging themselves. .
- the battery connection signal is pulled up by the resistor R3 in the battery pack 100 and connected to the input port of the controller 110 for control.
- FIG. 2 is a diagram showing an outline of a circuit configuration of the secondary battery pack system according to the embodiment of the present invention.
- FIG. 2 shows a configuration in which the secondary battery pack system is formed by connecting two battery packs in parallel.
- 100 is shown as battery pack 1
- 100 ′ is shown as battery pack 2 for convenience. Yes.
- Each battery pack is the same as that shown in FIG.
- a discharge control signal from the battery pack 1 and the battery pack 2 is connected to the main body side discharge control signal line of the main body side connection circuit of the electronic device 200, and is pulled up by the resistor R4.
- the battery connection signal terminal T3 is connected to GND as shown in the figure, and the battery pack and the main body side connection circuit are connected. Then, the battery connection signal input to the input port changes from Hi level to Low, and the control controller can recognize that the battery pack is connected to the main body.
- FIG. 3 is a diagram showing a discharge control signal line extracted from the secondary battery pack system according to the embodiment of the present invention.
- FIG. 3A shows a state where the battery pack is not discharged at all
- FIG. 3B shows a state where the battery pack is discharged
- FIG. 3C shows a state where the battery pack 2 is discharged. It shows the state of being discharged by one.
- the terminal of the N-ch open drain output port is connected to the LOW level, that is, GND. Since the total pull-up resistance is 9.98 k ⁇ and the pull-down resistance is 10 k ⁇ , the voltage of the discharge control signal is about 2.5V.
- the voltage of the discharge control signal line decreases, so that one or more battery packs are discharged. Whether the pack is discharged can be easily grasped without requiring a complicated system.
- FIG. 4 is a diagram showing state transition of the secondary battery pack system according to the embodiment of the present invention.
- Battery connection signal when battery pack is not connected Hi input discharge control signal: N-ch open drain output port Open output discharge control signal: A / D conversion input port 5V is detected Battery is low because battery connection signal is Hi level Is not connected.
- the battery pack turns off the discharge switch SW in consideration of the possibility of an external short circuit.
- Discharge control signal A / D conversion input port 2V or less is detected ⁇
- Other battery packs are also discharging ⁇ Discharge control signal N-ch open drain output port Open output ⁇ Discharge switch SW remains ON
- the battery pack is mainly two series (about 8V) or more, even one series battery pack can be handled by changing the detection range of the A / D conversion input port.
- the battery pack constituting the secondary battery pack system has the discharge control signal and the battery connection signal. If the battery is discharged, the battery pack is discharged one by one by not discharging. At the end of discharge, the next battery pack is discharged by changing the discharge control signal from Low to Open output. Since it starts and takes over the power supply, only the battery pack that has been discharged can be removed from the system and charged.
- the present invention relates to a secondary battery pack system whose use has been expanded in recent years in the fields of electric equipment and power storage.
- individual battery packs that constitute such a secondary battery pack system and are connected in parallel to each other include elements, sensors, etc., for the upper control controller to manage voltage, current, temperature, etc.
- a control controller is provided in each of the plurality of battery packs, and the elements and sensors as described above are provided. Etc., so that the cost can be suppressed and the industrial applicability is very large.
- SYMBOLS 100 Battery pack, 110 ... Controller for control, 200 ... Electronic device, CL ... Secondary battery cell, SW ... Discharge switch, R1, R2, R3 ... Resistance, T1, T2, T3, T4 ... connection terminals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
該本体側放電制御信号線と接続されることを特徴とする。
(1) 電池パック未接続時
電池接続信号:Hi入力
放電制御信号:N-chオープンドレイン出力ポート オープン出力
放電制御信号:A/D変換入力ポート 5Vを検出
電池接続信号がHiレベルのため、電池が未接続と判断。電池パックは外部短絡の可能性を考慮して放電スイッチSWをoffとする。
(2)電池パックを本体側接続回路に接続
電池接続信号:Low入力に変化
放電制御信号:N-chオープンドレイン出力ポート オープン出力
放電制御信号:A/D変換入力ポート 3~5Vを検出
→他電池パックの放電中ではない→放電制御信号 N-chオープンドレイン出力ポートはLOW→放電スイッチSW ON
放電制御信号:A/D変換入力ポート 3V以下を検出
→他電池パックの放電中→放電制御信号 N-chオープンドレイン出力ポートはオープン出力→放電スイッチSW OFF
(3) 自電池パック放電末期
放電制御信号:N-chオープンドレイン出力ポート Low → オープン出力に変化
放電制御信号:A/D変換入力ポート 3V以下から5Vに変化
(4) 本体側接続回路に接続中で自電池パックが放電制御信号 N-chオープンドレイン出力ポートがオープン出力の場合
放電制御信号:A/D変換入力ポート 3V以上に変化
→他電池パックの放電が終了→放電スイッチをON
放電制御信号:N-chオープンドレイン出力ポート Low
放電制御信号:A/D変換入力ポート 3V以下を検出
→他電池パックの放電中→放電制御信号 N-chオープンドレイン出力ポート オープン出力→放電スイッチSW OFF
(5) 自電池パック放電中
一定時間放電スイッチをONのままにして、他の電池パックから放電されていることを確認してから放電スイッチSWをOFFにする。
放電制御信号:A/D変換入力ポート 2V以下を検出
→他電池パックも放電中→放電制御信号 N-chオープンドレイン出力ポート オープン出力→放電スイッチSW ONのまま
なお、対象とする電池パックについては、主として2直列(約8V)以上の電池パックであるが、1直列の電池パックでもA/D変換入力ポートの検出範囲を変更することで、対応可能となる。
Claims (6)
- 電子機器に電力を供給する2次電池パックシステムにおいて、
制御用コントローラをそれぞれ有する複数の電池パックと、
電子機器側に設けられた該複数の電池パックとの本体側接続回路と、
該本体側接続回路に設けられる本体側放電制御信号線と、を有し、
該本体側放電制御信号線と該複数の電池パックのそれぞれの制御用コントローラとが接続されることを特徴とする2次電池パックシステム。 - 該電池パックが電子機器に取り付けられたときに該制御用コントローラの放電制御信号線は、
該本体側放電制御信号線と接続されることを特徴とする請求項1に記載の2次電池パックシステム。 - 該制御用コントローラには、該電池パックの接続を認識する電池接続信号が入力されることを特徴とする請求項1又は請求項2に記載の2次電池パックシステム。
- 該本体側放電制御信号線から入力される放電制御信号は、プルアップ抵抗によってプルアップされ、さらに2方に分岐され、分岐された一方は抵抗を介して、また他方は直接該該制御用コントローラに入力されることを特徴とする請求項3に記載の2次電池パックシステム。
- 該本体側放電制御信号線は本体側接続回路内では該複数の電池パックの放電制御信号が接続されるとともに、抵抗でプルアップされており、該電池接続信号は本体側接続回路内ではGND端子に接続されていることを特徴とする請求項4に記載の2次電池パックシステム。
- 本体側接続回路に電池パックが接続された場合、電池接続信号のレベルが変化することで電池パックが接続されたことを認識し、さらに放電制御信号の電圧を電池パック内の該制御用コントローラで読み取り放電許可するかの判断をすることを特徴とする請求項5に記載の2次電池パックシステム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/004625 WO2011033558A1 (ja) | 2009-09-16 | 2009-09-16 | 2次電池パックシステム |
US13/318,641 US8803483B2 (en) | 2009-09-16 | 2009-09-16 | Secondary battery pack power supply system |
EP09849418.0A EP2479864B1 (en) | 2009-09-16 | 2009-09-16 | Secondary battery pack system |
CN200980161465.2A CN102484375B (zh) | 2009-09-16 | 2009-09-16 | 二次电池组系统 |
US14/202,442 US9118200B2 (en) | 2009-09-16 | 2014-03-10 | Secondary battery pack system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/004625 WO2011033558A1 (ja) | 2009-09-16 | 2009-09-16 | 2次電池パックシステム |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/318,641 A-371-Of-International US8803483B2 (en) | 2009-09-16 | 2009-09-16 | Secondary battery pack power supply system |
US14/202,442 Division US9118200B2 (en) | 2009-09-16 | 2014-03-10 | Secondary battery pack system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011033558A1 true WO2011033558A1 (ja) | 2011-03-24 |
Family
ID=43758187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/004625 WO2011033558A1 (ja) | 2009-09-16 | 2009-09-16 | 2次電池パックシステム |
Country Status (4)
Country | Link |
---|---|
US (2) | US8803483B2 (ja) |
EP (1) | EP2479864B1 (ja) |
CN (1) | CN102484375B (ja) |
WO (1) | WO2011033558A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX347885B (es) | 2014-05-16 | 2017-05-16 | Techtronic Power Tools Tech Ltd | Paquete de multi-baterias de herramientas electricas. |
EP3398243B1 (en) * | 2016-11-14 | 2021-06-09 | SZ DJI Technology Co., Ltd. | Multi-battery system and management thereof |
CN110768361B (zh) * | 2019-11-19 | 2024-02-02 | 格力博(江苏)股份有限公司 | 电动工具 |
US11691261B2 (en) * | 2020-06-02 | 2023-07-04 | Snap-On Incorporated | Housing clamp for a power tool |
WO2022126458A1 (zh) * | 2020-12-16 | 2022-06-23 | 宁德时代新能源科技股份有限公司 | 供电装置、电池管理系统、供电系统、控制方法及介质 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000116014A (ja) * | 1998-10-06 | 2000-04-21 | Hitachi Ltd | 電力貯蔵装置 |
JP2001057247A (ja) * | 1999-08-17 | 2001-02-27 | Hitachi Maxell Ltd | 充電電池あるいは充電電池パック |
JP2004229391A (ja) | 2003-01-22 | 2004-08-12 | Sony Corp | 電池パック |
JP2008182810A (ja) * | 2007-01-24 | 2008-08-07 | Matsushita Electric Ind Co Ltd | 電子機器システム及び電池パック |
JP2009513095A (ja) * | 2005-10-21 | 2009-03-26 | エルジー・ケム・リミテッド | マルチ電池パックシステム及び制御方法、電池パック |
JP2009240103A (ja) * | 2008-03-28 | 2009-10-15 | Nec Tokin Corp | 2次電池パックシステム |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2928431B2 (ja) * | 1993-01-13 | 1999-08-03 | 富士通株式会社 | 補助バッテリ装置および充放電制御方法 |
JP3223659B2 (ja) | 1993-09-13 | 2001-10-29 | オムロン株式会社 | 無停電電源装置 |
JPH10124182A (ja) * | 1996-10-24 | 1998-05-15 | Fujitsu Ltd | 増設バッテリを装着可能な携帯型コンピュータ装置 |
US6043626A (en) * | 1996-10-29 | 2000-03-28 | Ericsson Inc. | Auxiliary battery holder with multicharger functionality |
US6184654B1 (en) * | 1998-07-28 | 2001-02-06 | Double-Time Battery Corporation | Wearable docking-holster system, with energy management, to support portable electronic devices |
JP3655171B2 (ja) | 2000-06-22 | 2005-06-02 | 富士通株式会社 | 充放電制御回路及び二次電池装置 |
US7145312B2 (en) * | 2002-12-06 | 2006-12-05 | Comarco Wireless Technologies, Inc. | Battery coupled to adapter and tip |
JP4101205B2 (ja) * | 2004-05-11 | 2008-06-18 | 松下電器産業株式会社 | 電池パック及び電源装置 |
US7688029B2 (en) * | 2005-11-08 | 2010-03-30 | Eveready Battery Company, Inc. | Portable battery powered appliance and method of operation |
JP5127383B2 (ja) * | 2007-09-28 | 2013-01-23 | 株式会社日立製作所 | 電池用集積回路および該電池用集積回路を使用した車両用電源システム |
JP4692554B2 (ja) | 2008-02-06 | 2011-06-01 | ソニー株式会社 | 充電装置 |
-
2009
- 2009-09-16 CN CN200980161465.2A patent/CN102484375B/zh active Active
- 2009-09-16 EP EP09849418.0A patent/EP2479864B1/en active Active
- 2009-09-16 US US13/318,641 patent/US8803483B2/en active Active
- 2009-09-16 WO PCT/JP2009/004625 patent/WO2011033558A1/ja active Application Filing
-
2014
- 2014-03-10 US US14/202,442 patent/US9118200B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000116014A (ja) * | 1998-10-06 | 2000-04-21 | Hitachi Ltd | 電力貯蔵装置 |
JP2001057247A (ja) * | 1999-08-17 | 2001-02-27 | Hitachi Maxell Ltd | 充電電池あるいは充電電池パック |
JP2004229391A (ja) | 2003-01-22 | 2004-08-12 | Sony Corp | 電池パック |
JP2009513095A (ja) * | 2005-10-21 | 2009-03-26 | エルジー・ケム・リミテッド | マルチ電池パックシステム及び制御方法、電池パック |
JP2008182810A (ja) * | 2007-01-24 | 2008-08-07 | Matsushita Electric Ind Co Ltd | 電子機器システム及び電池パック |
JP2009240103A (ja) * | 2008-03-28 | 2009-10-15 | Nec Tokin Corp | 2次電池パックシステム |
Non-Patent Citations (1)
Title |
---|
See also references of EP2479864A4 |
Also Published As
Publication number | Publication date |
---|---|
US8803483B2 (en) | 2014-08-12 |
US9118200B2 (en) | 2015-08-25 |
EP2479864B1 (en) | 2016-04-20 |
CN102484375B (zh) | 2014-12-03 |
US20120056597A1 (en) | 2012-03-08 |
EP2479864A4 (en) | 2013-12-25 |
CN102484375A (zh) | 2012-05-30 |
US20140184167A1 (en) | 2014-07-03 |
EP2479864A1 (en) | 2012-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2706646B1 (en) | Cell balancing system | |
JP4486046B2 (ja) | バッテリパックのモニタリング装置及びその方法 | |
JP4241714B2 (ja) | 電動工具用の電池パック | |
JP5389387B2 (ja) | バッテリ状態監視回路及びバッテリ装置 | |
CN101872988B (zh) | 电池组 | |
JP4842531B2 (ja) | バッテリー駆動デバイス | |
JP5974849B2 (ja) | 電池監視装置 | |
CN101210955A (zh) | 蓄电池监视装置以及蓄电池 | |
CN107315107B (zh) | 半导体装置、电池监控系统以及检测方法 | |
WO2011033558A1 (ja) | 2次電池パックシステム | |
US20130134944A1 (en) | Battery pack | |
US20060091854A1 (en) | Power monitoring and balancing device | |
US20140062408A1 (en) | Power source device and method of controlling assembled battery | |
JP2010080141A (ja) | 多直列多並列電池パック | |
JP2021106494A (ja) | 半導体装置、及び監視方法 | |
CN113728489B (zh) | 电池控制器、无线电池控制系统、电池组和电池平衡方法 | |
JP2009254165A (ja) | 電池状態検出回路、電池パック、及び充電システム | |
JP7240994B2 (ja) | バッテリパックおよび充電システム | |
JP5267975B2 (ja) | 2次電池パックシステム | |
TWI392188B (zh) | 2 times battery pack system | |
KR20070109084A (ko) | 배터리 팩 | |
JP2014236584A (ja) | パック電池 | |
JP6191699B2 (ja) | 電池パックおよび電池パックの制御方法 | |
JP2011188606A (ja) | 電池パックの制御回路 | |
CN115051428A (zh) | 电池保护芯片与电池装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980161465.2 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09849418 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13318641 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009849418 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: JP |