NZ722133A - Battery pack, charging assembly, electric tool and disconnection detection method - Google Patents

Battery pack, charging assembly, electric tool and disconnection detection method

Info

Publication number
NZ722133A
NZ722133A NZ722133A NZ72213314A NZ722133A NZ 722133 A NZ722133 A NZ 722133A NZ 722133 A NZ722133 A NZ 722133A NZ 72213314 A NZ72213314 A NZ 72213314A NZ 722133 A NZ722133 A NZ 722133A
Authority
NZ
New Zealand
Prior art keywords
serially connected
battery pack
detection method
electric tool
voltage
Prior art date
Application number
NZ722133A
Inventor
Dezhong Yang
Pingbo Shi
Lei Liu
Zheng Geng
Lei Wang
Junya Duan
Yingdian Xiang
Original Assignee
Nanjing Chervon Ind Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Chervon Ind Co Ltd filed Critical Nanjing Chervon Ind Co Ltd
Publication of NZ722133A publication Critical patent/NZ722133A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
    • G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
    • H02J7/963—Regulation of charging or discharging current or voltage in response to battery voltage in response to battery voltage gradient
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

A battery pack, a charging combination, an electric tool and a disconnection detection method. The battery pack (100) comprises: a plurality of serially connected units (111); a voltage detection module (14) for detecting voltage signals of the plurality of serially connected units; a battery pack control module (16) for receiving the voltage signals detected by the voltage detection module and calculating voltage values of the serially connected units, wherein the serially connected units comprise more than two battery cores (111a), a plurality of battery cores in one serially connected unit are connected in parallel, and the battery pack control module can judge on the basis of the time slope of the voltage of the serially connected units during charging whether battery cores which are disconnected exist in the serially connected unit.
NZ722133A 2013-12-31 2014-12-30 Battery pack, charging assembly, electric tool and disconnection detection method NZ722133A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN201310752233 2013-12-31
CN201410521089 2014-09-30
CN201410521086 2014-09-30
CN201410523174 2014-09-30
PCT/CN2014/095537 WO2015101284A1 (en) 2013-12-31 2014-12-30 Battery pack, charging combination, electric tool and disconnection detection method

Publications (1)

Publication Number Publication Date
NZ722133A true NZ722133A (en) 2017-09-29

Family

ID=52471632

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ722133A NZ722133A (en) 2013-12-31 2014-12-30 Battery pack, charging assembly, electric tool and disconnection detection method

Country Status (7)

Country Link
US (1) US9726731B2 (en)
EP (1) EP3079220B1 (en)
AU (1) AU2014375491B2 (en)
CA (1) CA2935503C (en)
GB (1) GB2524363B (en)
NZ (1) NZ722133A (en)
WO (1) WO2015101284A1 (en)

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KR20180056088A (en) 2016-11-18 2018-05-28 삼성전자주식회사 Sensing apparatus and battery management system including the same
CN106712167A (en) * 2016-12-13 2017-05-24 北京奇虎科技有限公司 Charging power supply protection device
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CN108306400A (en) * 2018-03-22 2018-07-20 广州云阳电子科技有限公司 A kind of detectable Cross prevention battery pack connects and starts the intelligent charger and its implementation of charging automatically
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CN109239609B (en) * 2018-11-02 2024-04-12 西安航远数字技术有限公司 Unmanned aerial vehicle connects in-place detecting system of many batteries in parallel
CN109660006A (en) * 2019-01-23 2019-04-19 珠海市微半导体有限公司 A kind of charging method for the method and robot whether detection rechargeable battery accesses
CN112952224B (en) * 2019-12-11 2022-12-20 南京泉峰科技有限公司 Battery pack charge balancing method, system and battery pack
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Also Published As

Publication number Publication date
CA2935503A1 (en) 2015-07-09
EP3079220B1 (en) 2021-10-20
AU2014375491B2 (en) 2018-04-26
US20150185289A1 (en) 2015-07-02
US9726731B2 (en) 2017-08-08
GB2524363B (en) 2020-12-30
EP3079220A1 (en) 2016-10-12
CA2935503C (en) 2022-03-22
EP3079220A4 (en) 2017-02-08
AU2014375491A1 (en) 2016-07-28
GB201423351D0 (en) 2015-02-11
GB2524363A (en) 2015-09-23
WO2015101284A1 (en) 2015-07-09

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