WO2015186421A1 - Dispositif de mesure d'état de batterie et batterie munie dudit dispositif - Google Patents

Dispositif de mesure d'état de batterie et batterie munie dudit dispositif Download PDF

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Publication number
WO2015186421A1
WO2015186421A1 PCT/JP2015/060633 JP2015060633W WO2015186421A1 WO 2015186421 A1 WO2015186421 A1 WO 2015186421A1 JP 2015060633 W JP2015060633 W JP 2015060633W WO 2015186421 A1 WO2015186421 A1 WO 2015186421A1
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WO
WIPO (PCT)
Prior art keywords
battery
state measuring
sensor
measuring device
battery state
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.)
Ceased
Application number
PCT/JP2015/060633
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English (en)
Japanese (ja)
Inventor
順哉 若林
健次 金丸
上野　洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokai Rika Co Ltd
Original Assignee
Tokai Rika 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 Tokai Rika Co Ltd filed Critical Tokai Rika Co Ltd
Publication of WO2015186421A1 publication Critical patent/WO2015186421A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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

Definitions

  • the present invention relates to a battery state measuring device and a battery including the battery state measuring device.
  • the internal resistance measuring device described in Patent Document 1 includes a connection member that is fastened and fixed to a battery terminal, a bus bar that is attached to the upper surface of the connection member, and a circuit board that is attached to the upper surface of the bus bar.
  • a microcomputer is mounted on the circuit board.
  • the circuit board is housed inside the protective case, measures the voltage, current, temperature, and impedance of the battery, determines the battery state such as charging and deterioration, and transmits the determination result to the control unit. It has become.
  • the circuit board is assembled at a position away from the battery via a conductor composed of a connecting member and a bus bar. Therefore, it becomes easy to be influenced by the temperature change of the external environment of the battery, and it becomes difficult to accurately measure the battery state such as charging and deterioration.
  • the circuit board Since the circuit board is assembled at a position away from the battery via the conductor composed of the connecting member and the bus bar, the length of the conductor that electrically connects the circuit board and the battery is increased, and the influence of the conductor resistance is increased. It becomes easy to receive.
  • An object of the present invention is to provide a battery state measuring device capable of accurately measuring at least one of the current, temperature and voltage of the battery, and a battery including the battery state measuring device.
  • a battery state measurement device includes a battery sensor that detects at least one of a current, a temperature, and a voltage of a battery body, and a mounting member that mounts the battery sensor, and the mounting member Is attached to the inside of the cover member on the battery body.
  • the battery sensor according to [1] may include a core provided on an outer periphery of a battery post of the battery body, and a magnetic sensor that detects a magnitude of a magnetic field generated in the core. Good.
  • the battery sensor according to [1] may include a shunt resistor on a battery post of the battery body.
  • the mounting member according to [1] may include a circuit board or a lead frame attached to the inner surface of the cover member.
  • a battery according to another aspect of the present invention includes the battery state measuring device according to any one of [1] to [4].
  • a battery state measurement device that can improve the measurement accuracy of a battery state.
  • FIG. 1 is a perspective view schematically showing a battery provided with a battery state measuring apparatus according to a first embodiment suitable for the present invention.
  • FIG. 2 is a perspective view schematically showing the battery state measuring apparatus according to the first embodiment.
  • FIG. 3 is a cross-sectional view schematically showing a main part of the battery state measuring apparatus according to the first embodiment.
  • FIG. 4 is a cross-sectional view schematically showing a main part of the battery state measuring apparatus according to the second embodiment suitable for the present invention.
  • FIG. 5 is a circuit diagram showing a configuration example of the battery state measuring apparatus according to the second embodiment.
  • FIG. 1 (Battery overall configuration)
  • reference numeral 1 indicating the whole schematically illustrates the external configuration of a battery mounted on a vehicle.
  • the battery 1 includes a battery body 4 made of polypropylene having a pair of battery posts 2 and 3 on both the negative electrode side and the positive electrode side on the upper surface, and a pair of through holes 5a and 5a for assembling the battery posts 2 and 3. And a cover member 5 made of polypropylene for sealing the upper surface of the main body 4.
  • the battery 1 is a secondary battery such as a lead battery, a lithium ion battery, or nickel metal hydride.
  • the battery state measuring device 10 is a device that measures (calculates) at least one of the current, temperature, and voltage of the battery body 4.
  • the battery state measuring apparatus 10 includes a circuit board 11 that is a mounting member on which a plurality of circuit patterns (not shown) are formed.
  • the circuit board 11 is held on the back surface (inner surface: inner space 6 side) of the cover member 5 by fixing means such as potting or welding.
  • the circuit pattern of the circuit board 11 includes a battery sensor 12 that detects the current and temperature of the battery body 4, and a battery state monitoring unit that monitors the current and temperature states of the battery body 4. And the four connector terminals 14,..., 14 are electrically connected.
  • a waterproof connector 7 is provided on the surface of the cover member 5.
  • the waterproof connector 7 includes the same number of connection terminals (not shown) that are electrically connected to the connector terminals 14,..., 14 via the four lead wires 8,.
  • the waterproof connector 7 is electrically connected to a vehicle ECU (not shown).
  • vehicle ECU controls, for example, in-vehicle electrical components and engines based on the battery state signal from the monitoring IC 13.
  • the battery sensor 12 and the monitoring IC 13 are supplied with power by the vehicle ECU or the battery post 3 on the positive electrode side of the battery 1.
  • the battery sensor 12 includes a temperature sensor 15 that detects the temperature of the internal space 6 of the battery body 4, a magnetic sensor 16 that detects a magnetic field generated by a current flowing through the battery body 4, and And a voltage sensor 18 for detecting the voltage of the battery body 4.
  • the temperature sensor 15 is composed of, for example, a thermistor.
  • the thermistor is an element whose resistance value changes according to temperature, and a voltage generated by the change in resistance value is converted into temperature.
  • the voltage sensor 18 detects, for example, a voltage supplied to the battery body 4 or a voltage charged to the battery body 4.
  • the magnetic sensor 16 includes a magnetic detection element such as a Hall IC or a Hall element. As shown in FIGS. 1 to 3, the magnetic sensor 16 includes a core 17 in which a gap portion 17a is provided in a part of an annular portion. The battery post 2 on the negative electrode side is inserted through the opening of the annular portion of the core 17, and the magnetic sensor 16 mounted on the circuit board 11 is disposed in the gap portion 17 a of the core 17.
  • the magnetic sensor 16 is introduced into the gap portion 17 a of the core 17 when the circuit board 11 is accommodated in the internal space 6 of the battery body 4.
  • the magnetic sensor 16 detects the strength of the magnetic field generated in the core 17 by the current flowing through the battery post 2 on the negative electrode side.
  • Signals detected by the temperature sensor 15, the voltage sensor 18 and the magnetic sensor 16 are sent to the monitoring IC 13 as shown in FIGS. 2 and 3.
  • the monitoring IC 13 monitors the battery state such as the remaining capacity of the battery body 4 based on the output signals of the temperature sensor 15, the voltage sensor 18 and the magnetic sensor 16.
  • a battery status signal such as the remaining capacity of the battery body 4 is transmitted to the vehicle ECU.
  • FIG. 4 and FIG. 5 schematically illustrate an example of the battery state measurement device 10 according to the second embodiment.
  • the second embodiment except for the current sensor using the magnetic sensor 16 and the core 17, the other configurations are the same as those in the first embodiment.
  • FIG. 4 and FIG. 5 the same members as those in the first embodiment are denoted by the same member names and reference numerals, and detailed description thereof will be omitted.
  • the battery state measuring apparatus 10 is for measuring the current flowing through the battery post 2 on the negative electrode side instead of the magnetic sensor 16 and the core 17.
  • a current detection shunt resistor 20 having a resistance value RS is used.
  • the shunt resistor 20 is provided on a part of the negative battery post 2, and a part of the negative battery post 2 is configured as a shunt resistor.
  • the battery post 3 on the positive electrode side is electrically connected to a load 9 such as an in-vehicle electrical component or an engine.
  • the shunt resistor 20 is electrically connected to an amplifier 21 that amplifies a difference between voltages generated at both ends of the shunt resistor 20.
  • the amplifier 21 outputs a potential difference ⁇ V generated at both ends of the shunt resistor 20 to the monitoring IC 13.
  • the battery state measuring apparatus 10 according to the second embodiment has the following effects in addition to the same effects as those of the first embodiment.
  • the configuration of the electronic component mounted on the circuit board 11 can be simplified and the setting position of the mounting position of the electronic component can be freely set.
  • the degree can be increased.
  • the degree of freedom in setting the mounting position of the electronic component can be increased, the detection accuracy and the detection efficiency can be improved, and the degree of freedom in design can be improved.
  • the configuration in which electronic components such as the battery sensor 12 are mounted on the circuit board 11 is illustrated.
  • the present invention is not limited to this.
  • a lead frame is used as a mounting member for the electronic components.
  • the configuration may be such that electronic components such as the battery sensor 12 are electrically connected by bonding connection or flip chip connection.
  • the lead frame can be integrally formed with the cover member 5.
  • a part of the battery post 2 on the negative electrode side is configured as the shunt resistor.
  • the present invention is not limited to this.
  • the entire battery post 2 on the negative electrode side is connected to the shunt resistor. It can be used as a part.
  • the electronic components such as the battery sensor 12 may be appropriately selected in terms of the number of arrangement, the arrangement position, the arrangement form, and the like according to the purpose of use, and of course, the initial object of the present invention can be achieved.
  • the battery state measuring device 10 can be applied to various devices other than a vehicle equipped with a battery.
  • the present invention can be applied to a battery state measuring device that is attached to a vehicle-mounted battery and used to detect a battery state such as charging and deterioration.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Secondary Cells (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un dispositif de mesure d'état de batterie capable de mesurer avec précision au moins l'un d'un courant, d'une température et d'une tension d'une batterie ; et une batterie munie du dispositif de mesure d'état de batterie. Le dispositif de mesure d'état de batterie (10) comporte : un capteur de batterie (12) qui détecte au moins l'un d'un courant, d'une température et d'une tension d'un corps principal de batterie (4) ; et un élément de montage (11) sur lequel est monté le capteur de batterie (12). L'élément de montage (11) est fixé au côté intérieur d'un élément de couvercle (5) sur le corps principal de batterie (4).
PCT/JP2015/060633 2014-06-04 2015-04-03 Dispositif de mesure d'état de batterie et batterie munie dudit dispositif Ceased WO2015186421A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014115755A JP2015230208A (ja) 2014-06-04 2014-06-04 バッテリ状態測定装置及びそれを備えたバッテリ
JP2014-115755 2014-06-04

Publications (1)

Publication Number Publication Date
WO2015186421A1 true WO2015186421A1 (fr) 2015-12-10

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PCT/JP2015/060633 Ceased WO2015186421A1 (fr) 2014-06-04 2015-04-03 Dispositif de mesure d'état de batterie et batterie munie dudit dispositif

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JP (1) JP2015230208A (fr)
WO (1) WO2015186421A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180183079A1 (en) * 2016-12-28 2018-06-28 Honda Motor Co., Ltd. Temperature detecting device and insertion hole structure of base
CN109037506A (zh) * 2017-06-12 2018-12-18 矢崎总业株式会社 电池组
JP2024542268A (ja) * 2022-10-28 2024-11-13 エルジー エナジー ソリューション リミテッド 液浸冷却式バッテリーモジュール、並びに、それを含むバッテリーパック及び車両

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7441868B2 (ja) * 2022-02-15 2024-03-01 本田技研工業株式会社 充放電制御システム及び充放電制御方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650248U (ja) * 1992-12-14 1994-07-08 スタンレー電気株式会社 電流計測機能付バッテリー
US20030020479A1 (en) * 2001-07-18 2003-01-30 Vb Autobatterie Gmbh Electrical rechargeable battery with an electronic circuit integrated in the rechargeable battery container
JP2003529899A (ja) * 2000-04-04 2003-10-07 パワースマート，インク． バッテリ用電流測定装置
JP2006040567A (ja) * 2004-07-22 2006-02-09 Denso Corp 電流検出装置付きバッテリー
JP2011222409A (ja) * 2010-04-13 2011-11-04 Might Industry Co Ltd リチウムイオン電池パック、そのリチウムイオン電池パックが用いられた電源装置、およびバッテリー投光機
EP2600443A2 (fr) * 2011-11-16 2013-06-05 Nxp B.V. Dispositif de gestion de batterie intégré

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0650248U (ja) * 1992-12-14 1994-07-08 スタンレー電気株式会社 電流計測機能付バッテリー
JP2003529899A (ja) * 2000-04-04 2003-10-07 パワースマート，インク． バッテリ用電流測定装置
US20030020479A1 (en) * 2001-07-18 2003-01-30 Vb Autobatterie Gmbh Electrical rechargeable battery with an electronic circuit integrated in the rechargeable battery container
JP2006040567A (ja) * 2004-07-22 2006-02-09 Denso Corp 電流検出装置付きバッテリー
JP2011222409A (ja) * 2010-04-13 2011-11-04 Might Industry Co Ltd リチウムイオン電池パック、そのリチウムイオン電池パックが用いられた電源装置、およびバッテリー投光機
EP2600443A2 (fr) * 2011-11-16 2013-06-05 Nxp B.V. Dispositif de gestion de batterie intégré

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180183079A1 (en) * 2016-12-28 2018-06-28 Honda Motor Co., Ltd. Temperature detecting device and insertion hole structure of base
US10847821B2 (en) * 2016-12-28 2020-11-24 Honda Motor Co., Ltd. Temperature detecting device and insertion hole structure of base
CN109037506A (zh) * 2017-06-12 2018-12-18 矢崎总业株式会社 电池组
CN109037506B (zh) * 2017-06-12 2021-05-04 矢崎总业株式会社 电池组
JP2024542268A (ja) * 2022-10-28 2024-11-13 エルジー エナジー ソリューション リミテッド 液浸冷却式バッテリーモジュール、並びに、それを含むバッテリーパック及び車両
JP7810799B2 (ja) 2022-10-28 2026-02-03 エルジー エナジー ソリューション リミテッド 液浸冷却式バッテリーモジュール、並びに、それを含むバッテリーパック及び車両

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