KR20110074137A - Test apparatus for battery pack - Google Patents

Test apparatus for battery pack Download PDF

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Publication number
KR20110074137A
KR20110074137A KR1020090131023A KR20090131023A KR20110074137A KR 20110074137 A KR20110074137 A KR 20110074137A KR 1020090131023 A KR1020090131023 A KR 1020090131023A KR 20090131023 A KR20090131023 A KR 20090131023A KR 20110074137 A KR20110074137 A KR 20110074137A
Authority
KR
South Korea
Prior art keywords
battery pack
voltage
unit
battery
current values
Prior art date
Application number
KR1020090131023A
Other languages
Korean (ko)
Inventor
김현식
양기홍
Original Assignee
주식회사 이랜텍
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 주식회사 이랜텍 filed Critical 주식회사 이랜텍
Priority to KR1020090131023A priority Critical patent/KR20110074137A/en
Publication of KR20110074137A publication Critical patent/KR20110074137A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
    • 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]
    • G01R31/364—Battery terminal connectors with integrated measuring 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
    • 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
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

Abstract

The battery pack inspection apparatus according to the present invention includes a plurality of terminals connected to the positive terminal and the negative terminal of the battery pack, respectively, by providing a terminal unit for mounting a plurality of battery packs, the terminal unit being electrically connected to the An inspection apparatus for a battery pack including a measuring unit for supplying power to a terminal unit and detecting voltage and current values from the plurality of battery packs, and a central control unit connected to the measuring unit to transmit data, wherein the measuring unit comprises: Detecting voltage and current values of each battery pack from two battery packs, and detecting voltage and current values from only one of the plurality of battery packs at one point of time, and detecting the voltage and current values with the central controller. The voltage for the plurality of battery packs by transmitting data And control to sequentially perform detection of the current value.

According to the present invention, by switching and supplying power supplied to a plurality of battery pack inspection terminals through a single measuring unit, voltages and currents of the plurality of battery packs can be detected efficiently, respectively, and the battery is measured through the measuring unit. By measuring the voltage and current from the terminal of the pack, and transmitting the data of the voltage and current values to the central control unit for batch processing through the central control unit, it is possible to efficiently and economically inspect the battery pack.

Description

Battery pack inspection device {TEST APPARATUS FOR BATTERY PACK}

 The present invention relates to an apparatus for inspecting a battery pack, and more particularly, by switching and supplying power supplied to a plurality of battery pack inspection terminals through a single measurement unit, thereby detecting voltages and currents of the plurality of battery packs, respectively. The present invention relates to a battery pack inspection apparatus capable of efficiently and economically performing inspection of a battery pack by transmitting and processing data of voltage and current values to a central controller.

In recent years, with the development of semiconductor devices and the development of small electronic devices, technologies related to mobile devices such as portable computers, video cameras, digital cameras, cellular phones, and the like, are rapidly progressing.

Rechargeable batteries used in the various mobile devices as described above include lithium ion batteries, nickel-hydride batteries, nickel-cadmium batteries, lead batteries, and the like using a redox reaction of lithium.

In the above various battery manufacturing processes, the amount / defect of the product is determined by detecting the capacity of the battery which is finally assembled.

In the case of a lithium battery that is normally assembled, a conveyor belt is transferred to a measuring terminal part for measuring the capacity of the battery, and a plurality of measuring terminals are connected to the terminal part of the battery to measure the capacity. It is loaded in the loading box and discharged.

However, in the conventional battery inspection apparatus, expensive measurement equipment is separately installed for each conveyor belt to which the battery pack is transferred, and then the capacity inspection of the battery pack is carried out.

Thus, the total cost of equipment for battery pack inspection was increased, and the manpower for management and monitoring of each measurement equipment was separately arranged, which was a major cause of the increase in equipment size and the cost of equipment for overall battery pack inspection.

The present invention has been made to solve the above problems, an object of the present invention is to switch the supply of power supplied to a plurality of battery pack test terminals through a single measurement unit, or to the memory unit in the measurement unit voltage and current value It is to provide a battery pack inspection apparatus capable of detecting the voltage and the current of the plurality of battery packs by storing the and sequentially transmitting to the central control unit.

Another object of the present invention, by measuring the voltage and current from the terminal of the battery pack through the measuring unit, and transmits the data of the voltage and current value to the central control unit to process the batch through the central control unit, It is to provide a battery pack inspection apparatus capable of performing the inspection efficiently and economically.

Still another object of the present invention is to provide a battery pack inspection apparatus capable of maximally preventing an error of inspection by applying a correction value for each terminal unit when performing a capacity inspection on a plurality of battery packs through one measurement unit.

Still another object of the present invention is to reduce the size of labor and system required for the operation of the whole facility by transmitting the batch processing of both failure determinations through the central control unit and the identification information of the battery packs determined after the failure to the display unit. To provide a battery pack inspection device that can be.

The battery pack inspection apparatus according to the present invention for achieving the above object includes a plurality of terminals connected to the positive terminal and the negative terminal of the battery pack, respectively, a terminal portion provided so that a plurality of battery packs can be mounted, and the terminal portion And a measurement unit electrically connected to and supplying power to the terminal unit and detecting voltage and current values from the plurality of battery packs, and a central control unit connected to the measurement unit to transmit data. The measuring unit detects voltage and current values of each battery pack from the plurality of battery packs, respectively, and at some point, transmits the voltage and current values from any one of the plurality of battery packs to the central controller. Voltage and current values of the plurality of battery packs. It is controlled to perform the output in order.

Preferably, the measurement unit is controlled to cut off the power supply to the remaining battery pack when the power supply to any one of the plurality of battery packs.

Alternatively, the measurement unit may include a memory unit, and store voltage and current values measured from the plurality of battery packs in a memory unit included in the measurement unit, and sequentially store the voltage and current values from the memory unit to the central controller. It may be configured to transmit.

In this case, when the voltage and current values of the battery pack transmitted from the measurement unit deviate from voltage and current values in a range previously stored in the central controller, display units for displaying them may be installed so as to correspond to the pair of terminals, respectively. Can be.

Preferably, the memory unit in the measurement unit stores a correction value of voltage and current according to each distance from the pair of terminals included in the terminal unit.

In addition, a plurality of battery pack temperature sensing sensors for sensing the temperature of each of the plurality of battery packs are installed to correspond to each of the plurality of battery packs in the terminal unit, and the room for sensing the temperature in the performance test room of the battery pack. A temperature sensor may be additionally installed spaced apart from the battery pack temperature sensor.

The measurement unit may be configured to detect identification information of the battery pack while simultaneously detecting voltage and current values of the plurality of battery packs.

Preferably, the identification information is an internal resistance of the battery pack, and the value of the internal resistance is transmitted to the central controller along with the voltage and current values.

According to the present invention, the voltage and the current of the plurality of battery packs can be efficiently detected by measuring the voltage and the current through one measuring unit for the plurality of battery pack inspection terminals.

In addition, by measuring the voltage and current from the terminal of the battery pack through the measuring unit, and transmits the data of the voltage and current value to the central control unit to process the batch through the central control unit, the inspection of the battery pack can be efficiently and economically Can be performed.

In addition, when performing a capacity test for a plurality of battery packs through one measurement unit, a correction value may be applied to each terminal unit to prevent errors in the test as much as possible.

In addition, by collectively processing the determination of both failures through the central control unit and by transmitting the identification information of the battery pack determined after the failure to the display unit, it is possible to drastically reduce the size of labor and system required for the operation of the entire facility.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms used in the present specification and claims should not be construed in a dictionary meaning, and the inventors may properly define the concept of terms in order to explain their invention in the best way. It should be construed as meaning and concept consistent with the technical spirit of the present invention.

Therefore, the embodiments shown in the present specification and the drawings are only exemplary embodiments of the present invention, and not all of the technical ideas of the present invention are presented. Therefore, various equivalents It should be understood that water and variations may exist.

1 is an overall schematic view of a battery pack inspection apparatus according to the present invention.

Referring to FIG. 1, a battery pack inspection apparatus according to the present invention includes a plurality of pairs of terminals 10-1 to 10-6 connected to positive and negative terminals of a battery pack, thereby mounting a plurality of battery packs. The terminal units 10-1 to 10-6 provided so as to be electrically connected to the terminal units 10-1 to 10-6, and supply power to the terminal units 10-1 to 10-6. An inspection apparatus for a battery pack including a measurement unit 20 for detecting voltage and current values from two battery packs, and a central controller 30 connected to the measurement unit 20 to enable data transmission. ) Detects voltage and current values of each battery pack from the plurality of battery packs, respectively, and at some point, the voltage and current values of any one of the plurality of battery packs are transferred to the central controller 30. I'm By, is controlled to perform the detection of the voltage and current values for said plurality of battery packs one by one.

The terminal parts 10-1 to 10-6 are connected to positive and negative terminals of the battery packs transferred by a transfer means (not shown), respectively, and are components for detecting voltage and current of the battery packs, respectively.

The terminal units 10-1 to 10-6 are connected to the measuring unit 20 through wiring, and the measuring unit 20 supplies power to the battery packs and detects voltage and current values of the battery packs. Done.

Here, the measuring unit 20 measures the voltage and current values only from one battery pack at any one time point among the plurality of battery packs, and the measured voltage and current values are connected to the measuring unit 20. The central control unit 30 is transmitted.

Alternatively, the charge / discharge current of the battery packs may be inspected by charging the battery packs through a power supply to the battery packs through the measurement unit 20 or by discharging the battery packs after a predetermined time.

As a method of detecting the voltage and current values from any one of the plurality of battery packs, the measurement unit 20 may switch the power supplied from the measurement unit, so that the power supply at any one time may be supplied to the plurality of battery packs. It may be configured to be supplied to only one of the two battery packs.

Alternatively, the voltage and current values measured from the plurality of battery packs are stored in a memory unit included in the measurement unit, and the data of the voltage and current values are transmitted to the central controller 30 in the order stored in the memory unit. It may be configured to.

In addition, if the plurality of battery packs are connected to the terminal unit 10 at the same time, the measuring unit 20 sequentially supplies power according to the sequence of the transfer means (conveyor belt, etc.) to which the battery packs are carried. Alternatively, the voltage and current values from the battery pack may be stored in the memory unit in the column order.

The data transmitted from the measurement unit 20 to the central control unit 30 is data of voltage and current values measured from the battery pack. Subsequently, operations such as determining the quantity / defect of the battery pack through the data are performed by the central control unit. It is made at 30.

That is, when the voltage and current values of the battery pack transmitted from the measuring unit 20 deviate from the voltage and current values in the range previously stored in the central controller 30, the battery pack corresponding to the battery pack is defectively determined. do.

In this case, the display unit 40 for displaying the defective determination is provided so as to correspond to each terminal pair in the terminal portions 10-1 to 10-6, respectively, to display the battery pack determined as defective.

In order to display a defective battery pack through the display unit 40, the measurement unit 20 is configured to detect the identification information of the battery pack while simultaneously detecting voltage and current values for the plurality of battery packs. .

For example, an internal resistance value of the battery pack may be used as the identification information for identifying the battery pack, and a value of the intrinsic internal resistance of the battery pack is measured by the measuring unit 20 to determine the battery pack. It is transmitted to the central control unit 30 together with the voltage and current values.

Thus, the battery pack determined as defective in the central controller 30 is transmitted to the display unit 40 together with the information about the battery pack through the identification information, whereby the battery pack determined as defective is not manpower or illustrated. Can be classified separately by robot means.

On the other hand, by measuring the correction value of the voltage, current, and resistance according to the distance between each pair of terminals included in the terminal (10-1 to 10-6) and the measurement unit 20 in advance in the memory unit, the measurement unit 20 The measured voltage, current, and resistance values of the battery pack may be measured to be closer to actual values.

On one side of the terminal parts 10-1 to 10-6, a plurality of battery pack temperature sensing sensors 50-1 to 50-6 for sensing temperatures of each of the plurality of battery packs are respectively included in the plurality of battery packs. It is installed to correspond to, to sense the temperature of the battery pack, respectively.

On the other hand, in order to detect the temperature in the performance test room of the battery pack, the room temperature sensor 60 is spaced apart from the battery pack temperature sensor 50-1 to 50-6 is additionally installed in the performance test room.

Thus, by detecting the temperature change of the battery pack during the performance test of the battery pack through the measurement unit 20, the charge and discharge performance of the battery pack is examined through the value of the temperature change.

 As described above, by detecting the voltage and the current for the plurality of battery packs through one measuring unit 20, and the subsequent process for determining the quantity / failure through the central control unit 30, Inspection of the battery pack can be performed efficiently and economically.

In addition, the batch processing of the good / bad judgment through the central control unit 30 and the identification information of the battery pack is determined to be later transmitted to the display unit to distinguish, thereby reducing the scale of labor and system required for the operation of the entire facility Can be reduced.

As mentioned above, although the present invention has been described by way of limited embodiments and drawings, the technical idea of the present invention is not limited thereto, and a person having ordinary skill in the art to which the present invention pertains, Various modifications and variations may be made without departing from the scope of the appended claims.

1 is an overall schematic view of a battery pack inspection apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10-1 to 10-6: terminal portion 20: measuring portion

30: central control unit 40: display unit

50-1 to 50-6: battery pack temperature sensor

60: room temperature sensor

Claims (8)

A terminal portion provided so that a plurality of battery packs can be mounted by including a plurality of pairs of terminals respectively connected to the positive terminal and the negative terminal of the battery pack; A measurement unit electrically connected to the terminal unit to supply power to the terminal unit and detect voltage and current from the plurality of battery packs; An inspection apparatus for a battery pack including a central control unit connected to the measurement unit and data transmission, The measurement unit detects voltage and current values of each battery pack from the plurality of battery packs, respectively. At one point in time, data of voltage and current values of any one of the plurality of battery packs is transmitted to the central controller, thereby controlling to sequentially detect the voltage and current values of the plurality of battery packs. Battery pack inspection device, characterized in that. The method of claim 1, When the measuring unit supplies power to any one of the plurality of battery packs, the battery pack inspection device, characterized in that the control to cut off the power supply for the remaining battery packs. The method of claim 1, The measuring unit includes a memory unit, and stores the voltage and current values measured from the plurality of battery packs in a memory unit included in the measuring unit, and sequentially transmits the voltage and current values from the memory unit to the central controller. Battery pack inspection device, characterized in that. The method of claim 1, When the voltage and current values of the battery pack transmitted from the measuring unit deviate from voltage and current values in a range previously stored in the central controller, display units for displaying them are provided one by one so as to correspond to the pair of terminals, respectively. Battery pack inspection device. The method of claim 4, wherein The measuring unit includes a memory unit, wherein the memory unit is stored in the battery pack inspection device, characterized in that the correction value of the voltage and current according to the distance to the pair of terminals included in the terminal unit. The method of claim 5, A plurality of battery pack temperature sensing sensors for detecting temperatures of each of the plurality of battery packs are installed to correspond to each of the plurality of battery packs in the terminal unit, and an indoor temperature for sensing a temperature in a performance test room of a battery pack. Battery pack inspection device, characterized in that the sensor is additionally installed spaced apart from the battery pack temperature sensor. The method of claim 1, And the measurement unit is configured to detect identification information of the battery pack while simultaneously detecting voltage and current values for the plurality of battery packs. The method of claim 6, And the identification information is an internal resistance of the battery pack, and the value of the internal resistance is transmitted to the central controller along with the voltage and current values.
KR1020090131023A 2009-12-24 2009-12-24 Test apparatus for battery pack KR20110074137A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101372157B1 (en) * 2013-06-26 2014-03-07 권동채 The function tester of multi-serial batteries
KR101468309B1 (en) * 2013-06-03 2014-12-02 권동채 The battery function testing system for the battery packs of mobile phones
KR20180062815A (en) * 2016-12-01 2018-06-11 주식회사 맥사이언스 Method and Control Device for testing secondary cell battery using measurement sequence
KR101877304B1 (en) * 2012-01-27 2018-07-12 에스케이이노베이션 주식회사 Method of test battery and equipments for the method
KR101877309B1 (en) * 2012-01-27 2018-07-12 에스케이이노베이션 주식회사 Method of test battery and equipments for the method
KR20200005104A (en) * 2018-07-05 2020-01-15 주식회사 엘지화학 Method for detecting fault of battery pack and apparatus performing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101877304B1 (en) * 2012-01-27 2018-07-12 에스케이이노베이션 주식회사 Method of test battery and equipments for the method
KR101877309B1 (en) * 2012-01-27 2018-07-12 에스케이이노베이션 주식회사 Method of test battery and equipments for the method
KR101468309B1 (en) * 2013-06-03 2014-12-02 권동채 The battery function testing system for the battery packs of mobile phones
KR101372157B1 (en) * 2013-06-26 2014-03-07 권동채 The function tester of multi-serial batteries
KR20180062815A (en) * 2016-12-01 2018-06-11 주식회사 맥사이언스 Method and Control Device for testing secondary cell battery using measurement sequence
KR20200005104A (en) * 2018-07-05 2020-01-15 주식회사 엘지화학 Method for detecting fault of battery pack and apparatus performing the same

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