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Battery pack diagnosis apparatus

A technology for diagnosing equipment and battery packs, used in secondary batteries, circuit breaker testing, and secondary battery repair/maintenance, etc., can solve the problem that no effective technology for diagnosing charge and discharge switching elements has been proposed, the manufacturing process is inconvenient, and the calculation process is complicated. and other problems to achieve accurate diagnosis, reduce diagnostic errors, and simplify circuit configuration.

Active Publication Date: 2020-12-29
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, effective techniques for diagnosing charge-discharge switching elements have not yet been proposed
For example, in the case of conventional diagnostic techniques, the circuit configuration or result calculation process is complicated, but there are still problems such as difficulty in fast processing, many errors, high-performance control devices required for accurate processing, inconvenient manufacturing process, or high manufacturing cost many questions

Method used

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  • Battery pack diagnosis apparatus
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Embodiment Construction

[0042] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms used in the specification and appended claims should not be construed as limited to the ordinary and dictionary meanings, but on the basis of the principle of allowing the inventor to properly define the terms for the best interpretation, Interpretation is based on meanings and concepts corresponding to technical aspects of the present disclosure.

[0043] Therefore, the descriptions presented herein are only preferred examples for illustrative purposes, and are not intended to limit the scope of the present disclosure, so it should be understood that other equivalent replacements and modifications can be made thereto without departing from the scope of the present disclosure. .

[0044] figure 1 is a diagram schematically showing a configuration in which a battery pack diag...

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Abstract

The present invention provides a technology of diagnosing whether or not a charging / discharging switch device disposed on a charging / discharging path of a battery pack operates normally. A battery pack diagnosis apparatus according to the present invention is a battery pack diagnosis apparatus in which a charging / discharging switch unit including a charging / discharging switch and a fuse is installed on a charging / discharging path between a battery cell and a pack terminal. The battery pack diagnosis apparatus comprises: a first diagnosis path; a second diagnosis path; a third diagnosis path; an integrated diagnosis path including a diagnosis switching unit and a diagnosis resistor unit; a voltage measurement unit; and a control unit for turning on or off the diagnosis switching unit and determining whether or not the charging / discharging switch unit is abnormal, on the basis of a diagnosis voltage measured by the voltage measurement unit.

Description

technical field [0001] This application claims priority from Korean Patent Application No. 10-2019-0004160 filed in Korea on January 11, 2019, the disclosure of which is incorporated herein by reference. [0002] The present disclosure relates to a technique for diagnosing a battery pack, and more particularly, to a technique for diagnosing whether a charge-discharge switching element provided on a charge-discharge path of the battery pack operates normally. Background technique [0003] Recently, since the demand for portable electronic products such as laptop computers, camcorders, and portable telephones has rapidly increased, and storage batteries for energy storage, robots, satellites, etc. have been seriously developed, researches that can A high-performance secondary battery that is repeatedly charged and discharged. [0004] Accordingly, demand for secondary batteries as energy sources is rapidly increasing as technology develops and demands for mobile devices, elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01R31/74G01R1/20G01R19/165H01M10/48
CPCG01R31/74H01M10/48Y02E60/10G01R31/3277G01R31/3278G01R19/16509G01R19/16519G01R19/16576H01M10/44H01M2010/4278H01M2010/4271H01M10/425Y02T10/70H02H7/18H02H3/087H02H3/046G01R1/203G01R19/16571G01R31/392G01R31/367B60L58/16G01R19/16566G01R31/327H01M10/4207H02J7/007
Inventor 玉丈洙朴渊棹
Owner LG ENERGY SOLUTION LTD
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