WO2016009772A1 - Battery monitoring device - Google Patents

Battery monitoring device Download PDF

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Publication number
WO2016009772A1
WO2016009772A1 PCT/JP2015/067317 JP2015067317W WO2016009772A1 WO 2016009772 A1 WO2016009772 A1 WO 2016009772A1 JP 2015067317 W JP2015067317 W JP 2015067317W WO 2016009772 A1 WO2016009772 A1 WO 2016009772A1
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WO
WIPO (PCT)
Prior art keywords
liquid level
battery
monitoring device
battery monitoring
current
Prior art date
Application number
PCT/JP2015/067317
Other languages
French (fr)
Japanese (ja)
Inventor
均至 村木
Original Assignee
株式会社東海理化電機製作所
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Publication date
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Publication of WO2016009772A1 publication Critical patent/WO2016009772A1/en

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    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • 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
    • 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
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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
    • H01M50/543—Terminals
    • H01M50/562—Terminals characterised by the material
    • 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 monitoring device.
  • a current measuring means for measuring a current flowing through the battery a voltage measuring means for measuring a voltage of the battery, a current measuring means and a current measuring means and a voltage measuring means to estimate a charging state and a deterioration state of the battery
  • a battery having determination means for determining whether or not to start the engine of the vehicle and determining whether to replace the battery based on the estimated charged state and deteriorated state, and these means are arranged on the upper lid of the battery ( For example, see Patent Document 1).
  • Patent Literature 1 Since the battery disclosed in Patent Literature 1 can determine whether or not the engine of the vehicle can be started, the operator can check whether or not the engine of the vehicle can be started. Therefore, the operator can perform an idle stop start while confirming whether or not the engine can be started, even if the vehicle is not equipped with an idle stop start system that stops the engine each time it stops with a signal or the like.
  • An object of the present invention is to provide a battery monitoring device that can be easily attached to a battery and can monitor the state of the battery by measuring the current and liquid level of the battery.
  • a battery monitoring device includes a bus bar that is attached to an electrode terminal of a battery and through which a battery current flows, and that measures a current measurement unit that measures the current flowing through the bus bar, A liquid level measurement unit that measures the height from the side of the battery; and a housing that houses the current measurement unit and the liquid level measurement unit.
  • a battery monitoring device that can be easily attached to a battery and can monitor the state of the battery by measuring the current and liquid level of the battery.
  • FIG. 1A is an explanatory diagram illustrating the battery monitoring device according to the first embodiment.
  • FIG. 1B is a block diagram illustrating the battery monitoring device.
  • FIG. 2A is an explanatory diagram illustrating a positional relationship between the battery monitoring device and the battery according to the first embodiment.
  • FIG. 2B is a block diagram illustrating the battery monitoring device according to the second embodiment.
  • FIG. 3 is a flowchart for explaining the operation of the battery monitoring apparatus according to the second embodiment.
  • the battery monitoring device includes a bus bar that is attached to the electrode terminal of the battery and through which the battery current flows.
  • the current measuring unit that measures the current flowing through the bus bar; and the height of the electrolyte level of the battery
  • a liquid level measuring unit that measures from the side of the battery; and a housing that houses the current measuring unit and the liquid level measuring unit.
  • the current measuring unit and the liquid level measuring unit are housed in the casing, and the bus bar can be directly attached to the electrode terminal of the battery, so that it can be easily attached to the battery and the current of the battery
  • the battery level can be monitored by measuring the height of the liquid level.
  • FIG. 1A is an explanatory diagram illustrating the battery monitoring device according to the first embodiment
  • FIG. 1B is a block diagram illustrating the battery monitoring device.
  • FIG. 2A is an explanatory diagram illustrating a positional relationship between the battery monitoring device and the battery according to the first embodiment. 2A is a view as seen from the direction of arrow A in FIG. 1A. In each figure according to the embodiments described below, the ratio between figures may be different from the actual ratio. 1B and 2B, main signals and information flows are indicated by arrows.
  • the battery monitoring device 1 is attached to the battery 2 and monitors the current 2 a flowing through the battery 2 and the liquid level 205 a of the electrolyte 205 of the battery 2.
  • the battery monitoring device 1 is used in a hybrid vehicle having an engine and a motor as drive sources.
  • the battery 2 is, for example, a lead storage battery.
  • the battery monitoring device 1 includes a bus bar 11 that is attached to the electrode terminal of the battery 2 and through which the current 2 a of the battery 2 flows, and the current 2 a that flows through the bus bar 11.
  • a current sensor unit 15 as a current measuring unit to measure, and a liquid level measuring unit 16 that measures the height of the liquid level 205a of the electrolyte 205 of the battery 2 from the side surface 21 of the battery 2 are provided.
  • the current sensor unit 15 and the liquid level measuring unit 16 are accommodated in the housing 10.
  • the bus bar 11 is attached to a negative terminal 23 as an electrode terminal.
  • the battery monitoring device 1 has a threshold value 190 for notifying that the height of the liquid level 205a of the electrolytic solution 205 is lower than a predetermined liquid level, and the liquid level detected by the liquid level measuring unit 16 comparing the height of and the threshold 190, if the detected liquid level is determined to be lower than the predetermined liquid level, a control unit 19 as the determination unit that outputs notification information S 14 for informing ing.
  • This predetermined liquid level is, for example, a fourth level 104 described later.
  • the housing 10 is formed using a resin material, and the current sensor unit 15, the liquid level measuring unit 16, and the control unit 19 are accommodated therein.
  • the housing 10 has a bus bar 11 exposed from one side surface and a harness 12 exposed from the other side surface.
  • the harness 12 is electrically connected to a vehicle control unit of the vehicle. Supply of electric power for operating the battery monitoring device 1 and output of current value information S 13 and notification information S 14 are performed via the harness 12.
  • the current sensor unit 15 is a current sensor that detects a current 2a flowing through the bus bar 11 with a magnetic detection element.
  • This magnetic detection element is a Hall element, a magnetoresistive element, or the like that detects a change in the magnetic field generated around the bus bar 11 by the current 2 a flowing through the bus bar 11.
  • the magnetic detection element of this embodiment is a Hall element. This Hall element is disposed, for example, in the vicinity of the bus bar 11 and is driven by a drive signal S 1 output from the control unit 19.
  • the current sensor unit 15 generates detection information S 7 based on the result of detecting the current 2 a flowing through the bus bar 11 and outputs the detection information S 7 to the control unit 19.
  • the detection information S 7 is information of a current value of the current 2a.
  • the bus bar 11 is formed to have a long and thin plate shape by punching a conductive plate member such as copper, a copper alloy, or brass. As shown in FIG. 2A, the bus bar 11 has a shape corresponding to the shape from the upper surface 22 a to the side surface 21 of the battery 2 and an attachment portion 112 that can be attached to the negative terminal 23 of the battery 2.
  • the bus bar 11 also has a base portion 110 protruding from the housing 10 and a bent portion 111 formed by bending the base portion 110 substantially vertically.
  • the attachment portion 112 is provided at the tip of the bent portion 111.
  • the bus bar 11 has a base portion 110 and a bent portion 111 that are substantially L-shaped.
  • the attachment portion 112 includes a ring portion 113 having a shape corresponding to the negative terminal 23.
  • the ring portion 113 is provided with a circular opening 114 into which the negative terminal 23 is inserted.
  • a notch is formed at the tip of the ring portion 113, and a fastening portion 115 is formed by projecting an end opposite to the notch in the radial direction.
  • the fastening portion 115 is provided with through holes at opposite ends, and the bolts 13 are inserted so as to pass through the through holes, and are bolted to the nuts 14. By this bolt tightening, the interval between the fastening portions 115 is narrowed, and the negative terminal 23 is fastened by the ring portion 113, and the bus bar 11 is attached to the negative terminal 23.
  • the battery monitoring device 1 does not tilt with respect to the liquid level. There are few.
  • the liquid level measurement unit 16 is arranged as a plurality of liquid level detection units arranged at least from the liquid level lower limit 200 to the liquid level upper limit 201 of the electrolytic solution 205 of the battery 2 and detecting the liquid level 205a. First photosensor 16a to fifth photosensor 16e.
  • the liquid level measurement unit has a number of liquid level detection units corresponding to levels described later.
  • the liquid level measurement unit of the present embodiment uses an optical sensor, but is not limited to this, and any known measuring device can be used as long as the liquid level can be measured from the side surface 21 of the battery 2. It is possible to use.
  • the liquid level measurement unit may include a camera using a semiconductor image sensor such as a CMOS (Complementary Metal Metal Oxide Semiconductor) and process the captured image to measure the liquid level.
  • CMOS Complementary Metal Metal Oxide Semiconductor
  • the liquid level measuring unit 16 is configured to measure the height (level) of the liquid level 205a of the electrolytic solution 205 in the first electrolytic bath 20a. .
  • the battery monitoring device 1 has a configuration in which the liquid level measuring unit 16 extends over the side surfaces where the first electrolytic cell 20a to the sixth electrolytic cell 20f are arranged, and measures the liquid level 205a to the liquid level 205f, respectively. You may do it.
  • the first level 101 to the fourth level 104 of the liquid level 205a shown in FIG. 2A are levels determined based on the liquid level upper limit 201 and the liquid level lower limit 200 as an example.
  • the first photo sensor 16a to the fourth photo sensor 16d are arranged so as to face the side surface 21 of the battery 2. Yes.
  • the first level 101 is determined to coincide with the liquid level upper limit 201.
  • the 5th level 105 of the liquid level 205a shown by FIG. 2A is located below the liquid level minimum 200 as an example.
  • a fifth photosensor 16 e is disposed so as to face the side surface 21 of the battery 2 in order to measure the fifth level 105. That is, the liquid level lower limit 200 is located between the fourth level 104 and the fifth level 105. Note that the number of levels is not limited to the first level 101 to the fifth level 105, and it is sufficient that at least one level is set.
  • the first photo sensor 16a to the fifth photo sensor 16e are each configured to include, for example, a light emitting element and a light receiving element.
  • the light emitting element is, for example, a light emitting diode.
  • the light receiving element is a photodiode.
  • the first photo sensor 16a to the fifth photo sensor 16e are configured to measure the liquid level 205a by receiving, for example, light output from the light emitting element and reflected by the electrolytic solution 205 by the light receiving element. .
  • the second photosensor 16b to the fifth photosensor 16e detect the light reflected by the liquid surface 205a and the first photosensor 16a does not detect the light, the liquid surface 205a reaches the second level 102. It can be determined that there is.
  • the first photo sensor 16a, the driving signals S 2 via the control unit 19 is driven by being supplied to the control unit 19 the results of the measurement as the measurement information S 8.
  • Second photosensor 16b are driving signals S 3 via the control unit 19 drives are supplied to the control unit 19 the results of the measurement as the measurement information S 9.
  • the third photo sensor 16c, the drive signal S 4 via the control unit 19 is driven by being supplied to the control unit 19 the results of the measurement as the measurement information S 10.
  • Fourth photosensor 16d are the drive signals S 5 through the control unit 19 drives are supplied to the control unit 19 the results of the measurement as the measurement information S 11.
  • Fifth photosensor 16e via the control unit 19 a drive signal S 6 is supplied to drive, to the control unit 19 the results of the measurement as the measurement information S 12.
  • the liquid level measuring unit 16 may be arranged such that one photosensor is located above the liquid level lower limit 200, at a position matching the liquid level lower limit 200, or below the liquid level lower limit 200. Further, when the battery monitoring device 1 is configured to notify before the liquid level 205a becomes equal to or lower than the liquid level lower limit 200, the liquid level detection unit is preferably disposed at least above the liquid level lower limit 200.
  • the control unit 19 includes, for example, a CPU (Central Processing Unit) that performs operations and processing on the acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. Microcomputer. In this ROM, for example, a program for operating the control unit 19 is stored. For example, the RAM is used as a storage area for temporarily storing calculation results and the like.
  • the control unit 19 has a means for generating a clock signal therein, and generates the drive signals S 1 to S 6 based on the clock signal.
  • the control unit 19 has a threshold value 190 indicating a predetermined liquid level 205a.
  • the threshold value 190 is, for example, the fourth level 104 that is a level above the liquid level lower limit 200. That is, the control unit 19, for example, to determine the photosensor does not measure the liquid surface 205a from the measurement information S 8 ⁇ measurement information S 12 obtained photosensor above the photosensors than the threshold 190 (first If it is the first photo-sensor 16a ⁇ third photosensor 16c) outputs broadcast information S 14 to the liquid surface 205a is assumed to be normal to the vehicle control unit.
  • the control unit 19 notifies that the liquid level 205a is low. and outputs the broadcast information S 14 to the vehicle control unit.
  • Control unit 19 converts the detected information S 7 obtained from the current sensor 15 into a current value, and is configured to output to the vehicle control unit as a current value information S 13.
  • the battery 2 includes a lower case 20 and an upper case 22 as shown in FIG. 1A.
  • the lower case 20 and the upper case 22 are formed using, for example, a resin material that is not exposed to the electrolytic solution 205 such as polypropylene (PP).
  • PP polypropylene
  • a negative terminal 23 and a positive terminal 24 formed into a cylindrical shape using a metal material such as lead are integrated by insert molding.
  • the negative terminal 23 is a negative electrode terminal of the battery 2, and the positive terminal 24 is a positive electrode terminal.
  • the negative terminal 23 is disposed on the first electrolytic cell 20a.
  • the positive terminal 24 is disposed on the sixth electrolytic cell 20f.
  • a vehicle cable is attached to the negative terminal 23 and the positive terminal 24.
  • the lower case 20 is divided into a first electrolytic cell 20a to a sixth electrolytic cell 20f.
  • the electrolytic solution 205 is injected so that the liquid level 205a to the liquid level 205f between the liquid level lower limit 200 and the liquid level upper limit 201 are reached.
  • one electrolytic cell generates a voltage of about 2V. Therefore, the battery 2 is configured to generate a voltage of approximately 12V, for example.
  • liquid supply ports 26a to 26f are formed in accordance with the first electrolytic cell 20a to the sixth electrolytic cell 20f. Liquid supply plugs 27a to 27f are attached to the liquid supply ports 26a to 26f.
  • the battery monitoring device 1 measures the current 2a and measures the liquid level 205a, and starts monitoring the state of the battery 2.
  • the control unit 19 outputs the driving signals S 1 to the current sensor unit 15, and outputs a drive signal S 2 ⁇ driving signal S 6 to the first photo sensor 16a ⁇ fifth photosensor 16e.
  • control unit 19 acquires the detected information S 7 from the current sensor unit 15, and acquires the measurement information S 8 ⁇ measurement information S 12 from the first photo sensor 16a ⁇ fifth photosensor 16e.
  • control unit 19 generates a current value information S 13 based on the detected information S 7, and outputs to the vehicle control unit via a harness 12.
  • the vehicle control unit controls the charging of the battery 2 based on the control and regenerative energy of the engine and the motor based on the current value information S 13 obtained through the harness 12.
  • the control unit 19 monitors the battery 2 liquid surface 205a on the basis of the measurement information S 8 ⁇ measurement information S 12 and the threshold 190, creates broadcast information S 14 based on the measured liquid level 205a And output to the vehicle control unit via the harness 12.
  • the battery monitoring device 1 monitors the state of the battery 2 until the vehicle is powered off.
  • the battery monitoring device 1 can be easily attached to the battery and can monitor the state of the battery by measuring the current and the liquid level of the battery. Specifically, since the battery monitoring device 1 can accommodate the current sensor unit 15 and the liquid level measurement unit 16 in the housing 10 and can directly attach the bus bar 11 to the negative terminal 23 of the battery 2. It is easy to measure the current 2a of the battery 2 and the height of the liquid level 205a, and the state of the battery 2 can be monitored.
  • the battery monitoring device 1 accommodates the current sensor unit 15 that detects the current 2 a flowing through the battery 2 and the liquid level measuring unit 16 that measures the height of the liquid level 205 a of the battery 2 in the housing 10. Compared with the case where the current sensor unit and the liquid level measuring unit are separately disposed, the size can be reduced and the manufacturing cost can be reduced.
  • the battery monitoring device 1 can easily position the liquid level measuring unit 16 and the battery 2 by attaching the mounting portion 112 of the bus bar 11 to the negative terminal 23 of the battery 2.
  • the second embodiment is different from the first embodiment in that the battery monitoring device 1 has a notification unit.
  • FIG. 2B is a block diagram illustrating the battery monitoring device according to the second embodiment.
  • portions having the same functions and configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
  • the battery monitoring device 1 of the present embodiment includes a notification unit 17 that performs notification based on the notification information S ⁇ b> 14 output from the control unit 19.
  • the notification unit 17 is a warning light provided on an instrument panel on which vehicle instruments are arranged. Informing section 17, for example, and is configured to illuminate a broadcast information S 14 is input.
  • the broadcast information S 14 is measured liquid level 205a is output from the control unit 19 when it is determined to be lower than the level set as a threshold 190.
  • the battery monitoring device 1 may be configured to notify via the notification unit 17 when the measured current 2a is lower than the reference.
  • the notification unit 17 includes a current warning lamp and a liquid level warning lamp.
  • the notification unit 17 includes, for example, at least one of a configuration that outputs sound, a configuration that vibrates the driver's seat and the steering, and a configuration that displays that the liquid level is low on the liquid crystal monitor of the navigation device. May be.
  • the battery monitoring device 1 measures the current 2a and the liquid level 205a, and starts monitoring the state of the battery 2 (S1).
  • the control unit 19 outputs the driving signals S 1 to the current sensor unit 15, and outputs a drive signal S 2 ⁇ driving signal S 6 to the first photo sensor 16a ⁇ fifth photosensor 16e.
  • control unit 19 acquires the detected information S 7 from the current sensor unit 15, and acquires the measurement information S 8 ⁇ measurement information S 12 from the first photo sensor 16a ⁇ fifth photosensor 16e.
  • control unit 19 generates a current value information S 13 based on the detected information S 7, and outputs to the vehicle control unit via a harness 12.
  • the vehicle control unit controls the charging of the battery 2 based on the control and regenerative energy of the engine and the motor based on the current value information S 13 obtained through the harness 12.
  • the control unit 19 monitors the battery 2 liquid surface 205a on the basis of the measurement information S 8 ⁇ measurement information S 12 and the threshold 190, creates broadcast information S 14 based on the measured liquid level 205a And output to the vehicle control unit via the harness 12.
  • Control unit 19 when the liquid surface 205a is below the level set by the threshold 190 (S2: Yes), the notification unit 17 generates and broadcast information S 14 for notifying that a low liquid level 205a Output.
  • Informing section 17 informs the user the alarm lamp is lit on the basis of the broadcast information S 14 acquired (S3).
  • step 2 when the measured liquid level 205a is higher than the threshold value 190 (S2: No), the control unit 19 returns to step 1 and continues to measure the current 2a and the liquid level 205a. To do.
  • the battery monitoring apparatus 1 can notify the user that the liquid level 205a of the battery 2 is low by the notification unit 17. Accordingly, since the user can recognize the height of the liquid level 205a of the battery 2 before it falls below the liquid level lower limit 200, the performance of the battery 2 is lowered or the liquid level 205a is lowered and the battery 2 is destroyed. The battery 2 can be protected by replenishing the electrolyte solution 205 before the operation.
  • the present invention can be applied to a battery monitoring device for monitoring the current flowing through the battery and the liquid level of the battery electrolyte.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

A battery monitoring device is provided which can be easily mounted on a battery and which can monitor the battery state by measuring the fluid level and the current of the battery. As shown in figures 1A and 1B, this battery monitoring device (1) comprises a busbar (11) which is mounted on an electrode terminal of a battery (2) and conducts the current (2a) of the battery (2), and further comprises a current sensor unit (15) as the current measuring unit for measuring the current (2a) flowing through the busbar (11), and a fluid level measuring unit (16) which, from the lateral surface (21) of the battery (2), measures the height of the fluid surface (205a) of an electrolyte (205) in the battery (2).

Description

バッテリ監視装置Battery monitoring device
本発明は、バッテリ監視装置に関する。 The present invention relates to a battery monitoring device.
電池に流れる電流を測定する電流測定手段と、電池の電圧を測定する電圧測定手段と、電流測定手段及び電圧測定手段で測定された電流及び電圧から電池の充電状態及び劣化状態を推定し、該推定した充電状態及び劣化状態に基づいて車両のエンジン始動の可否判定及び電池の交換判定を行う判定手段とを有し、これらの手段が電池の上蓋に配設された電池が知られている（例えば、特許文献１参照）。 A current measuring means for measuring a current flowing through the battery, a voltage measuring means for measuring a voltage of the battery, a current measuring means and a current measuring means and a voltage measuring means to estimate a charging state and a deterioration state of the battery, There is known a battery having determination means for determining whether or not to start the engine of the vehicle and determining whether to replace the battery based on the estimated charged state and deteriorated state, and these means are arranged on the upper lid of the battery ( For example, see Patent Document 1).
特許文献１に開示された電池は、車両のエンジン始動の可否を判定することができるので、操作者が車両のエンジン始動の可否を確認することができる。従って操作者は、車両が、信号等で止まる度にエンジンを停止させるアイドルストップスタートシステムを搭載していなくても、エンジン始動の可否を確認しながらアイドルストップスタートを行うことができる。 Since the battery disclosed in Patent Literature 1 can determine whether or not the engine of the vehicle can be started, the operator can check whether or not the engine of the vehicle can be started. Therefore, the operator can perform an idle stop start while confirming whether or not the engine can be started, even if the vehicle is not equipped with an idle stop start system that stops the engine each time it stops with a signal or the like.
特開２００９－９９４３０号公報JP 2009-99430 A
本発明の目的は、容易にバッテリに取り付けることができると共にバッテリの電流と液面の測定を行ってバッテリの状態を監視することができるバッテリ監視装置を提供することにある。 An object of the present invention is to provide a battery monitoring device that can be easily attached to a battery and can monitor the state of the battery by measuring the current and liquid level of the battery.
本発明の一実施形態によるバッテリ監視装置は、バッテリの電極端子に取り付けられると共にバッテリの電流が流れるバスバを有し、バスバを流れる電流を測定する電流測定部と、バッテリの電解液の液面の高さをバッテリの側面から測定する液面測定部と、電流測定部及び液面測定部が収容された筐体と、を有する。 A battery monitoring device according to an embodiment of the present invention includes a bus bar that is attached to an electrode terminal of a battery and through which a battery current flows, and that measures a current measurement unit that measures the current flowing through the bus bar, A liquid level measurement unit that measures the height from the side of the battery; and a housing that houses the current measurement unit and the liquid level measurement unit.
本発明の一実施形態によれば、容易にバッテリに取り付けることができると共にバッテリの電流と液面の測定を行ってバッテリの状態を監視することができるバッテリ監視装置を提供することができる。 According to one embodiment of the present invention, it is possible to provide a battery monitoring device that can be easily attached to a battery and can monitor the state of the battery by measuring the current and liquid level of the battery.
図１Ａは、第１の実施形態に係るバッテリ監視装置を示す説明図である。FIG. 1A is an explanatory diagram illustrating the battery monitoring device according to the first embodiment. 図１Ｂは、バッテリ監視装置を説明するブロック図である。FIG. 1B is a block diagram illustrating the battery monitoring device. 図２Ａは、第１の実施形態に係るバッテリ監視装置とバッテリの位置関係を示す説明図である。FIG. 2A is an explanatory diagram illustrating a positional relationship between the battery monitoring device and the battery according to the first embodiment. 図２Ｂは、第２の実施形態に係るバッテリ監視装置を説明するブロック図である。FIG. 2B is a block diagram illustrating the battery monitoring device according to the second embodiment. 図３は、第２の実施形態に係るバッテリ監視装置の動作を説明するフローチャートである。FIG. 3 is a flowchart for explaining the operation of the battery monitoring apparatus according to the second embodiment.
（実施形態の要約）
実施形態に係るバッテリ監視装置は、バッテリの電極端子に取り付けられると共にバッテリの電流が流れるバスバを有し、バスバを流れる電流を測定する電流測定部と、バッテリの電解液の液面の高さをバッテリの側面から測定する液面測定部と、電流測定部及び液面測定部が収容された筐体と、を有する。 (Summary of Embodiment)
The battery monitoring device according to the embodiment includes a bus bar that is attached to the electrode terminal of the battery and through which the battery current flows. The current measuring unit that measures the current flowing through the bus bar; and the height of the electrolyte level of the battery A liquid level measuring unit that measures from the side of the battery; and a housing that houses the current measuring unit and the liquid level measuring unit.
このバッテリ監視装置は、電流測定部と液面測定部とが筐体に収容されると共に、バスバをバッテリの電極端子に直接取り付けることができるので、容易にバッテリに取り付けることができると共にバッテリの電流と液面の高さの測定を行ってバッテリの状態を監視することができる。 In this battery monitoring device, the current measuring unit and the liquid level measuring unit are housed in the casing, and the bus bar can be directly attached to the electrode terminal of the battery, so that it can be easily attached to the battery and the current of the battery The battery level can be monitored by measuring the height of the liquid level.
[第１の実施形態]
（バッテリ監視装置１の全体構成）
図１Ａは、第１の実施形態に係るバッテリ監視装置を示す説明図であり、図１Ｂは、バッテリ監視装置を説明するブロック図である。図２Ａは、第１の実施形態に係るバッテリ監視装置とバッテリの位置関係を示す説明図である。図２Ａは、図１Ａの矢印Ａ方向から見た図である。なお、以下に記載する実施形態に係る各図において、図形間の比率は、実際の比率とは異なる場合がある。また図１Ｂ及び２Ｂでは、主な信号や情報の流れを矢印で示している。 [First embodiment]
(Overall configuration of battery monitoring device 1)
FIG. 1A is an explanatory diagram illustrating the battery monitoring device according to the first embodiment, and FIG. 1B is a block diagram illustrating the battery monitoring device. FIG. 2A is an explanatory diagram illustrating a positional relationship between the battery monitoring device and the battery according to the first embodiment. 2A is a view as seen from the direction of arrow A in FIG. 1A. In each figure according to the embodiments described below, the ratio between figures may be different from the actual ratio. 1B and 2B, main signals and information flows are indicated by arrows.
バッテリ監視装置１は、図１Ａに示されるように、バッテリ２に取り付けられて、バッテリ２に流れる電流２ａとバッテリ２の電解液２０５の液面２０５ａを監視するものである。このバッテリ監視装置１は、一例として、駆動源としてエンジンとモータを有するハイブリッド車に使用される。このバッテリ２は、例えば、鉛蓄電池である。 As shown in FIG. 1A, the battery monitoring device 1 is attached to the battery 2 and monitors the current 2 a flowing through the battery 2 and the liquid level 205 a of the electrolyte 205 of the battery 2. As an example, the battery monitoring device 1 is used in a hybrid vehicle having an engine and a motor as drive sources. The battery 2 is, for example, a lead storage battery.
具体的には、バッテリ監視装置１は、図１Ａ及び１Ｂに示されるように、バッテリ２の電極端子に取り付けられると共にバッテリ２の電流２ａが流れるバスバ１１を有し、バスバ１１を流れる電流２ａを測定する電流測定部としての電流センサ部１５と、バッテリ２の電解液２０５の液面２０５ａの高さをバッテリ２の側面２１から測定する液面測定部１６と、を有する。この電流センサ部１５及び液面測定部１６は、筐体１０に収容されている。またバスバ１１は、電極端子としての負ターミナル２３に取り付けられる。 Specifically, as shown in FIGS. 1A and 1B, the battery monitoring device 1 includes a bus bar 11 that is attached to the electrode terminal of the battery 2 and through which the current 2 a of the battery 2 flows, and the current 2 a that flows through the bus bar 11. A current sensor unit 15 as a current measuring unit to measure, and a liquid level measuring unit 16 that measures the height of the liquid level 205a of the electrolyte 205 of the battery 2 from the side surface 21 of the battery 2 are provided. The current sensor unit 15 and the liquid level measuring unit 16 are accommodated in the housing 10. The bus bar 11 is attached to a negative terminal 23 as an electrode terminal.
またバッテリ監視装置１は、電解液２０５の液面２０５ａの高さが予め定められた液面より低いことを報知するためのしきい値１９０を有し、液面測定部１６が検出した液面の高さとしきい値１９０とを比較し、検出した液面が予め定められた液面より低いと判定した場合、報知するための報知情報Ｓ１４を出力する判定部としての制御部１９を有している。この予め定められた液面とは、一例として、後述する第４のレベル１０４である。 Further, the battery monitoring device 1 has a threshold value 190 for notifying that the height of the liquid level 205a of the electrolytic solution 205 is lower than a predetermined liquid level, and the liquid level detected by the liquid level measuring unit 16 comparing the height of and the threshold 190, if the detected liquid level is determined to be lower than the predetermined liquid level, a control unit 19 as the determination unit that outputs notification information S 14 for informing ing. This predetermined liquid level is, for example, a fourth level 104 described later.
（筐体１０の構成）
筐体１０は、樹脂材料を用いて形成され、電流センサ部１５、液面測定部１６及び制御部１９が内部に収容されている。筐体１０は、一方の側面からバスバ１１が露出し、他方の側面からハーネス１２が露出している。 (Configuration of the housing 10)
The housing 10 is formed using a resin material, and the current sensor unit 15, the liquid level measuring unit 16, and the control unit 19 are accommodated therein. The housing 10 has a bus bar 11 exposed from one side surface and a harness 12 exposed from the other side surface.
このハーネス１２は、例えば、車両の車両制御部と電気的に接続されている。バッテリ監視装置１が作動するための電力の供給、電流値情報Ｓ１３及び報知情報Ｓ１４等の出力がハーネス１２を介して行われている。 For example, the harness 12 is electrically connected to a vehicle control unit of the vehicle. Supply of electric power for operating the battery monitoring device 1 and output of current value information S 13 and notification information S 14 are performed via the harness 12.
（電流センサ部１５の構成）
電流センサ部１５は、一例として、バスバ１１に流れる電流２ａを磁気検出素子で検出する電流センサである。この磁気検出素子は、バスバ１１に流れる電流２ａによって、バスバ１１の周囲に生じる磁場の変化を検出するホール素子及び磁気抵抗素子等である。本実施形態の磁気検出素子は、ホール素子である。このホール素子は、例えば、バスバ１１の近傍に配置され、制御部１９から出力される駆動信号Ｓ１により駆動される。 (Configuration of current sensor unit 15)
As an example, the current sensor unit 15 is a current sensor that detects a current 2a flowing through the bus bar 11 with a magnetic detection element. This magnetic detection element is a Hall element, a magnetoresistive element, or the like that detects a change in the magnetic field generated around the bus bar 11 by the current 2 a flowing through the bus bar 11. The magnetic detection element of this embodiment is a Hall element. This Hall element is disposed, for example, in the vicinity of the bus bar 11 and is driven by a drive signal S 1 output from the control unit 19.
電流センサ部１５は、バスバ１１に流れる電流２ａを検出した結果に基づいて検出情報Ｓ７を生成して制御部１９に出力する。この検出情報Ｓ７は、電流２ａの電流値の情報である。 The current sensor unit 15 generates detection information S 7 based on the result of detecting the current 2 a flowing through the bus bar 11 and outputs the detection information S 7 to the control unit 19. The detection information S 7 is information of a current value of the current 2a.
バスバ１１は、例えば、銅、銅合金又は黄銅等の導電性を有する板部材を打ち抜いて長細い板形状となるように形成されている。このバスバ１１は、図２Ａに示されるように、バッテリ２の上面２２ａから側面２１に至る形状に応じた形状を有すると共にバッテリ２の負ターミナル２３に取り付け可能な取付部１１２を有している。 The bus bar 11 is formed to have a long and thin plate shape by punching a conductive plate member such as copper, a copper alloy, or brass. As shown in FIG. 2A, the bus bar 11 has a shape corresponding to the shape from the upper surface 22 a to the side surface 21 of the battery 2 and an attachment portion 112 that can be attached to the negative terminal 23 of the battery 2.
またバスバ１１は、筐体１０から突出する基部１１０と、基部１１０を略垂直に折り曲げて形成された折曲部１１１と、を有する。取付部１１２は、折曲部１１１の先端に設けられている。バスバ１１は、図２Ａに示されるように、基部１１０と折曲部１１１とが略Ｌ字形状となっている。 The bus bar 11 also has a base portion 110 protruding from the housing 10 and a bent portion 111 formed by bending the base portion 110 substantially vertically. The attachment portion 112 is provided at the tip of the bent portion 111. As shown in FIG. 2A, the bus bar 11 has a base portion 110 and a bent portion 111 that are substantially L-shaped.
取付部１１２は、負ターミナル２３に応じた形状を有するリング部１１３を備えている。このリング部１１３には、負ターミナル２３が挿入される円形の開口１１４が設けられている。 The attachment portion 112 includes a ring portion 113 having a shape corresponding to the negative terminal 23. The ring portion 113 is provided with a circular opening 114 into which the negative terminal 23 is inserted.
リング部１１３の先端には、切欠きが形成され、さらに切欠きにおいて対向する端部が径方向に突出して締結部１１５が形成されている。この締結部１１５は、対向する端部にそれぞれ貫通孔が設けられ、貫通孔を貫通するようにボルト１３が挿入され、ナット１４にボルト締めされる。このボルト締めにより、締結部１１５の間隔が狭くなると共にリング部１１３により負ターミナル２３を締め付け、負ターミナル２３へのバスバ１１の取り付けが行われる。 A notch is formed at the tip of the ring portion 113, and a fastening portion 115 is formed by projecting an end opposite to the notch in the radial direction. The fastening portion 115 is provided with through holes at opposite ends, and the bolts 13 are inserted so as to pass through the through holes, and are bolted to the nuts 14. By this bolt tightening, the interval between the fastening portions 115 is narrowed, and the negative terminal 23 is fastened by the ring portion 113, and the bus bar 11 is attached to the negative terminal 23.
なお、負ターミナル２３へのバスバ１１の取り付けにおいて、負ターミナル２３を中心にバスバ１１が回転しても、バッテリ監視装置１が液面に対して傾くわけではないので、液面の測定に与える影響は少ない。 In addition, even if the bus bar 11 rotates around the negative terminal 23 in the mounting of the bus bar 11 to the negative terminal 23, the battery monitoring device 1 does not tilt with respect to the liquid level. There are few.
（液面測定部１６の構成）
液面測定部１６は、図２Ａに示されるように、少なくともバッテリ２の電解液２０５の液面下限２００から液面上限２０１に沿って並び、液面２０５ａを検出する複数の液面検出部としての第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅを有する。なお液面測定部は、後述するレベルに応じた数の液面検出部を有する。 (Configuration of the liquid level measuring unit 16)
As shown in FIG. 2A, the liquid level measurement unit 16 is arranged as a plurality of liquid level detection units arranged at least from the liquid level lower limit 200 to the liquid level upper limit 201 of the electrolytic solution 205 of the battery 2 and detecting the liquid level 205a. First photosensor 16a to fifth photosensor 16e. The liquid level measurement unit has a number of liquid level detection units corresponding to levels described later.
ここで、本実施形態の液面測定部は、光学式のセンサを用いたがこれに限定されず、バッテリ２の側面２１から液面の高さが測定できるものであれば周知の測定機器を用いることが可能である。例えば、液面測定部は、ＣＭＯＳ（Complementary Metal Oxide Semiconductor）等の半導体撮像素子を用いたカメラを有し、撮像した画像を処理して液面を測定する構成であっても良い。 Here, the liquid level measurement unit of the present embodiment uses an optical sensor, but is not limited to this, and any known measuring device can be used as long as the liquid level can be measured from the side surface 21 of the battery 2. It is possible to use. For example, the liquid level measurement unit may include a camera using a semiconductor image sensor such as a CMOS (Complementary Metal Metal Oxide Semiconductor) and process the captured image to measure the liquid level.
液面測定部１６は、バッテリ監視装置１が負ターミナル２３に取り付けられることから、第１の電解槽２０ａの電解液２０５の液面２０５ａの高さ（レベル）を測定するように構成されている。なお変形例として、バッテリ監視装置１は、液面測定部１６が、第１の電解槽２０ａ～第６の電解槽２０ｆが並ぶ側面にわたる構成を有し、液面２０５ａ～液面２０５ｆをそれぞれ測定しても良い。 Since the battery monitoring device 1 is attached to the negative terminal 23, the liquid level measuring unit 16 is configured to measure the height (level) of the liquid level 205a of the electrolytic solution 205 in the first electrolytic bath 20a. . As a modification, the battery monitoring device 1 has a configuration in which the liquid level measuring unit 16 extends over the side surfaces where the first electrolytic cell 20a to the sixth electrolytic cell 20f are arranged, and measures the liquid level 205a to the liquid level 205f, respectively. You may do it.
図２Ａに示される液面２０５ａの第１のレベル１０１～第４のレベル１０４は、一例として、液面上限２０１及び液面下限２００に基づいて定められたレベルである。バッテリ監視装置１は、この第１のレベル１０１～第４のレベル１０４を測定するため、バッテリ２の側面２１に対向するように第１のフォトセンサ１６ａ～第４のフォトセンサ１６ｄが配置されている。なお第１のレベル１０１は、液面上限２０１と一致するように定められている。 The first level 101 to the fourth level 104 of the liquid level 205a shown in FIG. 2A are levels determined based on the liquid level upper limit 201 and the liquid level lower limit 200 as an example. In the battery monitoring device 1, in order to measure the first level 101 to the fourth level 104, the first photo sensor 16a to the fourth photo sensor 16d are arranged so as to face the side surface 21 of the battery 2. Yes. The first level 101 is determined to coincide with the liquid level upper limit 201.
また図２Ａに示される液面２０５ａの第５のレベル１０５は、一例として、液面下限２００よりも下に位置している。バッテリ監視装置１は、この第５のレベル１０５を測定するため、バッテリ２の側面２１に対向するように第５のフォトセンサ１６ｅが配置されている。つまり、液面下限２００は、第４のレベル１０４と第５のレベル１０５との間に位置する。なお、レベルの数は、第１のレベル１０１～第５のレベル１０５に限定されず、少なくとも１つ設定されれば良い。 Moreover, the 5th level 105 of the liquid level 205a shown by FIG. 2A is located below the liquid level minimum 200 as an example. In the battery monitoring device 1, a fifth photosensor 16 e is disposed so as to face the side surface 21 of the battery 2 in order to measure the fifth level 105. That is, the liquid level lower limit 200 is located between the fourth level 104 and the fifth level 105. Note that the number of levels is not limited to the first level 101 to the fifth level 105, and it is sufficient that at least one level is set.
第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅは、例えば、発光素子と受光素子とを備えてそれぞれ構成されている。発光素子は、一例として、発光ダイオードである。受光素子は、一例として、フォトダイオードである。 The first photo sensor 16a to the fifth photo sensor 16e are each configured to include, for example, a light emitting element and a light receiving element. The light emitting element is, for example, a light emitting diode. As an example, the light receiving element is a photodiode.
第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅは、例えば、発光素子から出力され、電解液２０５で反射した光を受光素子で受光することで液面２０５ａを測定するように構成されている。例えば、第２のフォトセンサ１６ｂ～第５のフォトセンサ１６ｅが液面２０５ａで反射した光を検出し、第１のフォトセンサ１６ａが光を検出しない場合、液面２０５ａが第２のレベル１０２にあると判定することが可能となる。 The first photo sensor 16a to the fifth photo sensor 16e are configured to measure the liquid level 205a by receiving, for example, light output from the light emitting element and reflected by the electrolytic solution 205 by the light receiving element. . For example, when the second photosensor 16b to the fifth photosensor 16e detect the light reflected by the liquid surface 205a and the first photosensor 16a does not detect the light, the liquid surface 205a reaches the second level 102. It can be determined that there is.
第１のフォトセンサ１６ａは、制御部１９を介して駆動信号Ｓ２が供給されて駆動し、測定した結果を測定情報Ｓ８として制御部１９に出力する。第２のフォトセンサ１６ｂは、制御部１９を介して駆動信号Ｓ３が供給されて駆動し、測定した結果を測定情報Ｓ９として制御部１９に出力する。第３のフォトセンサ１６ｃは、制御部１９を介して駆動信号Ｓ４が供給されて駆動し、測定した結果を測定情報Ｓ１０として制御部１９に出力する。第４のフォトセンサ１６ｄは、制御部１９を介して駆動信号Ｓ５が供給されて駆動し、測定した結果を測定情報Ｓ１１として制御部１９に出力する。第５のフォトセンサ１６ｅは、制御部１９を介して駆動信号Ｓ６が供給されて駆動し、測定した結果を測定情報Ｓ１２として制御部１９に出力する。 The first photo sensor 16a, the driving signals S 2 via the control unit 19 is driven by being supplied to the control unit 19 the results of the measurement as the measurement information S 8. Second photosensor 16b are driving signals S 3 via the control unit 19 drives are supplied to the control unit 19 the results of the measurement as the measurement information S 9. The third photo sensor 16c, the drive signal S 4 via the control unit 19 is driven by being supplied to the control unit 19 the results of the measurement as the measurement information S 10. Fourth photosensor 16d are the drive signals S 5 through the control unit 19 drives are supplied to the control unit 19 the results of the measurement as the measurement information S 11. Fifth photosensor 16e via the control unit 19 a drive signal S 6 is supplied to drive, to the control unit 19 the results of the measurement as the measurement information S 12.
なお、変形例として、液面測定部１６は、ひとつのフォトセンサが液面下限２００の上部、液面下限２００と一致する位置、又は液面下限２００の下部に配置されても良い。またバッテリ監視装置１は、液面２０５ａが液面下限２００以下となる前に報知する構成とする場合、液面検出部が少なくとも液面下限２００の上部に配置されることが好ましい。 As a modified example, the liquid level measuring unit 16 may be arranged such that one photosensor is located above the liquid level lower limit 200, at a position matching the liquid level lower limit 200, or below the liquid level lower limit 200. Further, when the battery monitoring device 1 is configured to notify before the liquid level 205a becomes equal to or lower than the liquid level lower limit 200, the liquid level detection unit is preferably disposed at least above the liquid level lower limit 200.
（制御部１９の構成）
制御部１９は、例えば、記憶されたプログラムに従って、取得したデータに演算、加工等を行うＣＰＵ（Central Processing Unit）、半導体メモリであるＲＡＭ（Random Access Memory）及びＲＯＭ（Read Only Memory）等から構成されるマイクロコンピュータである。このＲＯＭには、例えば、制御部１９が動作するためのプログラムが格納されている。ＲＡＭは、例えば、一時的に演算結果等を格納する記憶領域として用いられる。また制御部１９は、その内部にクロック信号を生成する手段を有し、このクロック信号に基づいて駆動信号Ｓ１～駆動信号Ｓ６を生成する。 (Configuration of control unit 19)
The control unit 19 includes, for example, a CPU (Central Processing Unit) that performs operations and processing on the acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. Microcomputer. In this ROM, for example, a program for operating the control unit 19 is stored. For example, the RAM is used as a storage area for temporarily storing calculation results and the like. The control unit 19 has a means for generating a clock signal therein, and generates the drive signals S 1 to S 6 based on the clock signal.
制御部１９は、予め定められた液面２０５ａの高さを示すしきい値１９０を有する。このしきい値１９０は、例えば、液面下限２００の上のレベルである第４のレベル１０４をしきい値としている。つまり、制御部１９は、例えば、取得した測定情報Ｓ８～測定情報Ｓ１２から液面２０５ａを測定していないフォトセンサを判定し、当該フォトセンサがしきい値１９０より上のフォトセンサ（第１のフォトセンサ１６ａ～第３のフォトセンサ１６ｃ）である場合は、液面２０５ａが正常であるとする報知情報Ｓ１４を車両制御部に出力する。また制御部１９は、判定されたフォトセンサがしきい値１９０以下のフォトセンサ（第４のフォトセンサ１６ｄ及び第５のフォトセンサ１６ｅ）である場合は、液面２０５ａが低いとして報知を行わせる報知情報Ｓ１４を車両制御部に出力する。 The control unit 19 has a threshold value 190 indicating a predetermined liquid level 205a. The threshold value 190 is, for example, the fourth level 104 that is a level above the liquid level lower limit 200. That is, the control unit 19, for example, to determine the photosensor does not measure the liquid surface 205a from the measurement information S 8 ~ measurement information S 12 obtained photosensor above the photosensors than the threshold 190 (first If it is the first photo-sensor 16a ~ third photosensor 16c) outputs broadcast information S 14 to the liquid surface 205a is assumed to be normal to the vehicle control unit. In addition, when the determined photosensor is a photosensor having a threshold value of 190 or less (the fourth photosensor 16d and the fifth photosensor 16e), the control unit 19 notifies that the liquid level 205a is low. and outputs the broadcast information S 14 to the vehicle control unit.
制御部１９は、例えば、電流センサ部１５から取得した検出情報Ｓ７を電流値に変換し、電流値情報Ｓ１３として車両制御部に出力するように構成されている。 Control unit 19, for example, converts the detected information S 7 obtained from the current sensor 15 into a current value, and is configured to output to the vehicle control unit as a current value information S 13.
（バッテリ２の構成）
バッテリ２は、図１Ａに示されるように、下ケース２０と上ケース２２とを備えている。下ケース２０及び上ケース２２は、例えば、ポリプロピレン（ＰＰ）等の電解液２０５におかされない樹脂材料を用いて形成されている。上ケース２２は、例えば、鉛等の金属材料を用いて円柱形状に形成された負ターミナル２３及び正ターミナル２４がインサート成形により一体とされている。 (Configuration of battery 2)
The battery 2 includes a lower case 20 and an upper case 22 as shown in FIG. 1A. The lower case 20 and the upper case 22 are formed using, for example, a resin material that is not exposed to the electrolytic solution 205 such as polypropylene (PP). In the upper case 22, for example, a negative terminal 23 and a positive terminal 24 formed into a cylindrical shape using a metal material such as lead are integrated by insert molding.
負ターミナル２３は、バッテリ２の負電極端子であり、正ターミナル２４は、正電極端子である。負ターミナル２３は、第１の電解槽２０ａ上に配置されている。また正ターミナル２４は、第６の電解槽２０ｆ上に配置されている。この負ターミナル２３及び正ターミナル２４は、車両のケーブルが取り付けられる。 The negative terminal 23 is a negative electrode terminal of the battery 2, and the positive terminal 24 is a positive electrode terminal. The negative terminal 23 is disposed on the first electrolytic cell 20a. The positive terminal 24 is disposed on the sixth electrolytic cell 20f. A vehicle cable is attached to the negative terminal 23 and the positive terminal 24.
下ケース２０は、第１の電解槽２０ａ～第６の電解槽２０ｆに分かれている。この第１の電解槽２０ａ～第６の電解槽２０ｆには、電解液２０５が液面下限２００から液面上限２０１の間の液面２０５ａ～液面２０５ｆとなるように注入されている。ひとつの電解槽は、一例として、およそ２Ｖの電圧を発生させる。従ってバッテリ２は、例えば、およそ１２Ｖの電圧を発生させるように構成されている。 The lower case 20 is divided into a first electrolytic cell 20a to a sixth electrolytic cell 20f. In the first electrolytic cell 20a to the sixth electrolytic cell 20f, the electrolytic solution 205 is injected so that the liquid level 205a to the liquid level 205f between the liquid level lower limit 200 and the liquid level upper limit 201 are reached. For example, one electrolytic cell generates a voltage of about 2V. Therefore, the battery 2 is configured to generate a voltage of approximately 12V, for example.
上ケース２２には、第１の電解槽２０ａ～第６の電解槽２０ｆに応じて、給液口２６ａ～給液口２６ｆが形成されている。この給液口２６ａ～給液口２６ｆには、液口栓２７ａ～液口栓２７ｆが取り付けられている。電解液２０５を補充する場合は、補充する電解槽の液口栓を取り外して電解液２０５を電解槽に補充する。 In the upper case 22, liquid supply ports 26a to 26f are formed in accordance with the first electrolytic cell 20a to the sixth electrolytic cell 20f. Liquid supply plugs 27a to 27f are attached to the liquid supply ports 26a to 26f. When the electrolytic solution 205 is replenished, the electrolytic cap to be replenished is removed and the electrolytic solution 205 is replenished to the electrolytic bath.
以下に、バッテリ監視装置１の動作について説明する。 Below, operation | movement of the battery monitoring apparatus 1 is demonstrated.
（動作）
バッテリ監視装置１は、車両の電源が投入されると、電流２ａを測定すると共に液面２０５ａを測定してバッテリ２の状態の監視を開始する。まず、制御部１９は、駆動信号Ｓ１を電流センサ部１５に出力すると共に、駆動信号Ｓ２～駆動信号Ｓ６を第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅに出力する。 (Operation)
When the power of the vehicle is turned on, the battery monitoring device 1 measures the current 2a and measures the liquid level 205a, and starts monitoring the state of the battery 2. First, the control unit 19 outputs the driving signals S 1 to the current sensor unit 15, and outputs a drive signal S 2 ~ driving signal S 6 to the first photo sensor 16a ~ fifth photosensor 16e.
次に、制御部１９は、電流センサ部１５から検出情報Ｓ７を取得すると共に、第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅから測定情報Ｓ８～測定情報Ｓ１２を取得する。 Next, the control unit 19 acquires the detected information S 7 from the current sensor unit 15, and acquires the measurement information S 8 ~ measurement information S 12 from the first photo sensor 16a ~ fifth photosensor 16e.
次に、制御部１９は、検出情報Ｓ７に基づいて電流値情報Ｓ１３を生成し、ハーネス１２を介して車両制御部に出力する。車両制御部は、ハーネス１２を介して取得した電流値情報Ｓ１３に基づいてエンジン及びモータの制御や回生エネルギーに基づくバッテリ２の充電等の制御を行う。 Next, the control unit 19 generates a current value information S 13 based on the detected information S 7, and outputs to the vehicle control unit via a harness 12. The vehicle control unit controls the charging of the battery 2 based on the control and regenerative energy of the engine and the motor based on the current value information S 13 obtained through the harness 12.
また、制御部１９は、測定情報Ｓ８～測定情報Ｓ１２としきい値１９０とに基づいてバッテリ２の液面２０５ａの監視を行い、測定した液面２０５ａに基づいて報知情報Ｓ１４を生成し、ハーネス１２を介して車両制御部に出力する。 The control unit 19 monitors the battery 2 liquid surface 205a on the basis of the measurement information S 8 ~ measurement information S 12 and the threshold 190, creates broadcast information S 14 based on the measured liquid level 205a And output to the vehicle control unit via the harness 12.
バッテリ監視装置１は、車両の電源が遮断されるまで、バッテリ２の状態の監視を行う。 The battery monitoring device 1 monitors the state of the battery 2 until the vehicle is powered off.
（第１の実施形態の効果）
本実施形態に係るバッテリ監視装置１は、容易にバッテリに取り付けることができると共にバッテリの電流と液面の測定を行ってバッテリの状態を監視することができる。具体的には、バッテリ監視装置１は、電流センサ部１５と液面測定部１６とが筐体１０に収容されると共に、バスバ１１をバッテリ２の負ターミナル２３に直接取り付けることができるので、取り付けが容易であると共にバッテリ２の電流２ａと液面２０５ａの高さの測定を行ってバッテリ２の状態を監視することができる。 (Effects of the first embodiment)
The battery monitoring device 1 according to the present embodiment can be easily attached to the battery and can monitor the state of the battery by measuring the current and the liquid level of the battery. Specifically, since the battery monitoring device 1 can accommodate the current sensor unit 15 and the liquid level measurement unit 16 in the housing 10 and can directly attach the bus bar 11 to the negative terminal 23 of the battery 2. It is easy to measure the current 2a of the battery 2 and the height of the liquid level 205a, and the state of the battery 2 can be monitored.
バッテリ監視装置１は、バッテリ２に流れる電流２ａを検出する電流センサ部１５と、バッテリ２の液面２０５ａの高さを測定する液面測定部１６と、を筐体１０に収容しているので、電流センサ部と液面測定部とが別々に配置される場合と比べて、小型化ができると共に製造コストが低減される。 Since the battery monitoring device 1 accommodates the current sensor unit 15 that detects the current 2 a flowing through the battery 2 and the liquid level measuring unit 16 that measures the height of the liquid level 205 a of the battery 2 in the housing 10. Compared with the case where the current sensor unit and the liquid level measuring unit are separately disposed, the size can be reduced and the manufacturing cost can be reduced.
バッテリ監視装置１は、バッテリ２の負ターミナル２３にバスバ１１の取付部１１２を取り付けることで液面測定部１６とバッテリ２の位置決めを容易に行うことができる。 The battery monitoring device 1 can easily position the liquid level measuring unit 16 and the battery 2 by attaching the mounting portion 112 of the bus bar 11 to the negative terminal 23 of the battery 2.
［第２の実施形態］
第２の実施形態は、バッテリ監視装置１が報知部を有する点で第１の実施形態と異なっている。 [Second Embodiment]
The second embodiment is different from the first embodiment in that the battery monitoring device 1 has a notification unit.
図２Ｂは、第２の実施形態に係るバッテリ監視装置を説明するブロック図である。なお以下に記載する実施形態において、第１の実施形態と同じ機能及び構成を有する部分は、第１の実施形態と同じ符号を付し、その説明を省略する。 FIG. 2B is a block diagram illustrating the battery monitoring device according to the second embodiment. In the embodiments described below, portions having the same functions and configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
本実施形態のバッテリ監視装置１は、図２Ｂに示されるように、制御部１９から出力された報知情報Ｓ１４に基づいて報知を行う報知部１７を有している。 As shown in FIG. 2B, the battery monitoring device 1 of the present embodiment includes a notification unit 17 that performs notification based on the notification information S <b> 14 output from the control unit 19.
この報知部１７は、一例として、車両の計器類が配置されるインストルメントパネルに設けられた警告灯である。報知部１７は、例えば、報知情報Ｓ１４が入力すると点灯するように構成されている。 As an example, the notification unit 17 is a warning light provided on an instrument panel on which vehicle instruments are arranged. Informing section 17, for example, and is configured to illuminate a broadcast information S 14 is input.
この報知情報Ｓ１４は、測定された液面２０５ａがしきい値１９０として設定されたレベルよりも低いと判定された場合に制御部１９から出力される。なお変形例として、バッテリ監視装置１は、測定された電流２ａが基準よりも低い場合等に報知部１７を介して報知する構成としても良い。この場合、一例として、報知部１７は、電流用の警告灯と液面用の警告灯を備えている。 The broadcast information S 14 is measured liquid level 205a is output from the control unit 19 when it is determined to be lower than the level set as a threshold 190. As a modification, the battery monitoring device 1 may be configured to notify via the notification unit 17 when the measured current 2a is lower than the reference. In this case, as an example, the notification unit 17 includes a current warning lamp and a liquid level warning lamp.
さらに変形例として、報知部１７は、例えば、音を出力する構成、運転席やステアリング等を振動させる構成、及びナビゲーション装置の液晶モニタに液面が低いことを表示させる構成の少なくとも１つを備えていても良い。 Further, as a modification, the notification unit 17 includes, for example, at least one of a configuration that outputs sound, a configuration that vibrates the driver's seat and the steering, and a configuration that displays that the liquid level is low on the liquid crystal monitor of the navigation device. May be.
以下に、本実施形態のバッテリ監視装置１の動作について図３のフローチャートに従って説明する。 Below, operation | movement of the battery monitoring apparatus 1 of this embodiment is demonstrated according to the flowchart of FIG.
（動作）
バッテリ監視装置１は、車両の電源が投入されると、電流２ａを測定すると共に液面２０５ａを測定してバッテリ２の状態の監視を開始する（Ｓ１）。まず、制御部１９は、駆動信号Ｓ１を電流センサ部１５に出力すると共に、駆動信号Ｓ２～駆動信号Ｓ６を第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅに出力する。 (Operation)
When the vehicle is powered on, the battery monitoring device 1 measures the current 2a and the liquid level 205a, and starts monitoring the state of the battery 2 (S1). First, the control unit 19 outputs the driving signals S 1 to the current sensor unit 15, and outputs a drive signal S 2 ~ driving signal S 6 to the first photo sensor 16a ~ fifth photosensor 16e.
次に、制御部１９は、電流センサ部１５から検出情報Ｓ７を取得すると共に、第１のフォトセンサ１６ａ～第５のフォトセンサ１６ｅから測定情報Ｓ８～測定情報Ｓ１２を取得する。 Next, the control unit 19 acquires the detected information S 7 from the current sensor unit 15, and acquires the measurement information S 8 ~ measurement information S 12 from the first photo sensor 16a ~ fifth photosensor 16e.
次に、制御部１９は、検出情報Ｓ７に基づいて電流値情報Ｓ１３を生成し、ハーネス１２を介して車両制御部に出力する。車両制御部は、ハーネス１２を介して取得した電流値情報Ｓ１３に基づいてエンジン及びモータの制御や回生エネルギーに基づくバッテリ２の充電等の制御を行う。 Next, the control unit 19 generates a current value information S 13 based on the detected information S 7, and outputs to the vehicle control unit via a harness 12. The vehicle control unit controls the charging of the battery 2 based on the control and regenerative energy of the engine and the motor based on the current value information S 13 obtained through the harness 12.
また、制御部１９は、測定情報Ｓ８～測定情報Ｓ１２としきい値１９０とに基づいてバッテリ２の液面２０５ａの監視を行い、測定した液面２０５ａに基づいて報知情報Ｓ１４を生成し、ハーネス１２を介して車両制御部に出力する。 The control unit 19 monitors the battery 2 liquid surface 205a on the basis of the measurement information S 8 ~ measurement information S 12 and the threshold 190, creates broadcast information S 14 based on the measured liquid level 205a And output to the vehicle control unit via the harness 12.
制御部１９は、液面２０５ａがしきい値１９０で設定したレベル以下である場合（Ｓ２：Ｙｅｓ）、液面２０５ａが低いことを報知するための報知情報Ｓ１４を生成して報知部１７に出力する。 Control unit 19, when the liquid surface 205a is below the level set by the threshold 190 (S2: Yes), the notification unit 17 generates and broadcast information S 14 for notifying that a low liquid level 205a Output.
報知部１７は、取得した報知情報Ｓ１４に基づいて警告灯を点灯してユーザに報知する（Ｓ３）。 Informing section 17 informs the user the alarm lamp is lit on the basis of the broadcast information S 14 acquired (S3).
ここで、ステップ２において、制御部１９は、測定された液面２０５ａがしきい値１９０より上のレベルの場合（Ｓ２：Ｎｏ）、ステップ１に戻って電流２ａと液面２０５ａの測定を継続する。 Here, in step 2, when the measured liquid level 205a is higher than the threshold value 190 (S2: No), the control unit 19 returns to step 1 and continues to measure the current 2a and the liquid level 205a. To do.
（第２の実施形態の効果）
本実施形態のバッテリ監視装置１は、報知部１７によってユーザにバッテリ２の液面２０５ａの高さが低いことを報知することができる。従って、ユーザは、バッテリ２の液面２０５ａの高さが液面下限２００より下がる前に認識することができるので、バッテリ２の性能が低下したり、液面２０５ａが下がってバッテリ２が破壊されたりする前に電解液２０５を補充してバッテリ２を保護することができる。 (Effect of 2nd Embodiment)
The battery monitoring apparatus 1 according to the present embodiment can notify the user that the liquid level 205a of the battery 2 is low by the notification unit 17. Accordingly, since the user can recognize the height of the liquid level 205a of the battery 2 before it falls below the liquid level lower limit 200, the performance of the battery 2 is lowered or the liquid level 205a is lowered and the battery 2 is destroyed. The battery 2 can be protected by replenishing the electrolyte solution 205 before the operation.
以上、本発明のいくつかの実施形態及び変形例を説明したが、これらの実施形態及び変形例は、一例に過ぎず、特許請求の範囲に係る発明を限定するものではない。これら新規な実施形態及び変形例は、その他の様々な形態で実施されることが可能であり、本発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更等を行うことができる。また、これら実施形態及び変形例の中で説明した特徴の組合せの全てが発明の課題を解決するための手段に必須であるとは限らない。さらに、これら実施形態及び変形例は、発明の範囲及び要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 As mentioned above, although some embodiment and modification of this invention were demonstrated, these embodiment and modification are only examples, and do not limit the invention which concerns on a claim. These novel embodiments and modifications can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all the combinations of features described in these embodiments and modifications are essential to the means for solving the problems of the invention. Furthermore, these embodiments and modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
本発明は、バッテリに流れる電流とバッテリの電解液の液面を監視するためのバッテリ監視装置に適用できる。 The present invention can be applied to a battery monitoring device for monitoring the current flowing through the battery and the liquid level of the battery electrolyte.
１　バッテリ監視装置
２　バッテリ
１０　筐体
１１　バスバ
１５　電流センサ部
１６　液面測定部
１６ａ～１６ｅ　第１のフォトセンサ～第５のフォトセンサ
１７　報知部
１９　制御部
１１２　取付部
１９０　しきい値 DESCRIPTION OF SYMBOLS 1 Battery monitoring apparatus 2 Battery 10 Case 11 Bus bar 15 Current sensor part 16 Liquid level measurement part 16a-16e 1st photo sensor-5th photo sensor 17 Notification part 19 Control part 112 Attachment part 190 Threshold value

Claims (8)

  1. バッテリの電極端子に取り付けられると共に前記バッテリの電流が流れるバスバを有し、前記バスバを流れる前記電流を測定する電流測定部と、
    前記バッテリの電解液の液面の高さを前記バッテリの側面から測定する液面測定部と、
    前記電流測定部及び前記液面測定部が収容された筐体と、を有するバッテリ監視装置。     A bus bar that is attached to the electrode terminal of the battery and through which the current of the battery flows, and a current measuring unit that measures the current flowing through the bus bar;
    A liquid level measuring unit that measures the height of the electrolyte level of the battery from the side of the battery;
    A battery monitoring device comprising: a housing in which the current measuring unit and the liquid level measuring unit are housed.
  2. 前記液面測定部は、少なくとも前記バッテリの前記電解液の液面下限から液面上限に沿って並び、前記電解液の前記液面を検出する複数の液面検出部を有する、請求項１に記載のバッテリ監視装置。 The liquid level measurement unit includes a plurality of liquid level detection units arranged along at least a liquid level lower limit to a liquid level upper limit of the electrolyte solution of the battery and detecting the liquid level of the electrolyte solution. The battery monitoring device described.
  3. 前記バスバは、前記バッテリの上面から前記側面に至る形状に応じた形状を有すると共に前記バッテリの前記電極端子に取り付け可能な取付部を有する、請求項１又は２に記載のバッテリ監視装置。 3. The battery monitoring device according to claim 1, wherein the bus bar has a shape corresponding to a shape extending from an upper surface of the battery to the side surface and has an attachment portion that can be attached to the electrode terminal of the battery.
  4. 前記電解液の前記液面が予め定められた液面より低いことを報知するためのしきい値を有し、前記液面測定部が検出した液面の高さと前記しきい値とを比較し、前記検出した液面の高さが前記予め定められた液面より低いと判定した場合、報知するための報知情報を出力する判定部を有する、請求項１～３のいずれか１項に記載のバッテリ監視装置。 It has a threshold value for notifying that the liquid level of the electrolytic solution is lower than a predetermined liquid level, and compares the liquid level height detected by the liquid level measuring unit with the threshold value. 4. The apparatus according to claim 1, further comprising a determination unit that outputs notification information for notification when it is determined that the detected liquid level is lower than the predetermined liquid level. Battery monitoring device.
  5. 前記判定部から出力された前記報知情報に基づいて報知を行う報知部を有する、請求項４に記載のバッテリ監視装置。 The battery monitoring device according to claim 4, further comprising a notification unit that performs notification based on the notification information output from the determination unit.
  6. 前記筐体は、前記液面測定部が前記側面に対向するように前記バッテリの前記側面に配置される、請求項１に記載のバッテリ監視装置。 The battery monitoring device according to claim 1, wherein the casing is disposed on the side surface of the battery such that the liquid level measurement unit faces the side surface.
  7. 前記複数の液面検出部は、前記液面下限を挟んで設けられる少なくとも２個の液面検出部を有する、請求項２に記載のバッテリ監視装置。 The battery monitoring device according to claim 2, wherein the plurality of liquid level detection units include at least two liquid level detection units provided with the liquid level lower limit interposed therebetween.
  8. 前記バスバは、前記筐体から突出した基部と、前記基部の長手方向と直交する折曲部とを有し、
    前記取付部は、前記折曲部の端に形成される、請求項３に記載のバッテリ監視装置。     The bus bar has a base portion protruding from the housing, and a bent portion orthogonal to the longitudinal direction of the base portion,
    The battery monitoring device according to claim 3, wherein the attachment portion is formed at an end of the bent portion.
PCT/JP2015/067317 2014-07-16 2015-06-16 Battery monitoring device WO2016009772A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0652724U (en) * 1991-01-21 1994-07-19 タイガー魔法瓶株式会社 Electric hot water storage container
WO2008016152A1 (en) * 2006-08-04 2008-02-07 Gs Yuasa Corporation Lead acid battery
JP2009099430A (en) * 2007-10-18 2009-05-07 Shin Kobe Electric Mach Co Ltd Battery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0652724U (en) * 1991-01-21 1994-07-19 タイガー魔法瓶株式会社 Electric hot water storage container
WO2008016152A1 (en) * 2006-08-04 2008-02-07 Gs Yuasa Corporation Lead acid battery
JP2009099430A (en) * 2007-10-18 2009-05-07 Shin Kobe Electric Mach Co Ltd Battery

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