KR20180063927A - Automated Ultra Sonic Inspection System - Google Patents

Automated Ultra Sonic Inspection System Download PDF

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KR20180063927A
KR20180063927A KR1020160163450A KR20160163450A KR20180063927A KR 20180063927 A KR20180063927 A KR 20180063927A KR 1020160163450 A KR1020160163450 A KR 1020160163450A KR 20160163450 A KR20160163450 A KR 20160163450A KR 20180063927 A KR20180063927 A KR 20180063927A
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ultrasonic
frequency
battery
signal
resonance
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KR1020160163450A
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이종화
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주식회사 나루이엠에스
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Priority to KR1020160163450A priority Critical patent/KR20180063927A/en
Priority to CN201720852857.5U priority patent/CN207866759U/en
Publication of KR20180063927A publication Critical patent/KR20180063927A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

According to the present invention, a method for automatically distinguishing a battery defect for an electric vehicle using ultrasonic transmission and reception compares a reflective wave level (L-0) and a peak level of a frequency (f_2, heterogeneous frequency) other than a resonant frequency in ultrasonic resonance and a resonant frequency thereof or a harmonic frequency (multiple frequency) thereof created by electrode assemblies (20) periodically and repetitiously arranged and fixed in a case (10) at regular intervals to determine that there is a defect in a case of a prescribed ratio or higher, which satisfies L(f_2)/L(f_0) > a1 (ex: 0.3).

Description

초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법 { Automated Ultra Sonic Inspection System }BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for automatically detecting a battery defect in an electric vehicle using an ultrasonic transmission /

본 발명은 양산 라인에서 생산되는 대량의 전기차용 배터리 내부 구조 불량품을 전문적인 초음파 기술자 없이도 구조물의 공진 특성을 이용한 프로그램화된 판별방법으로 배터리 내부 불?품을 선별할 수 있는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법에 관한 것이다.The present invention relates to a method for distinguishing a defective internal structure of a battery for a large quantity of electric vehicles produced in a mass production line by a programmed discrimination method using a resonance characteristic of a structure without a professional ultrasonic engineer, The present invention relates to an apparatus and method for automatically determining a battery fault.

공개특허 10-2010-0006853호는 일반적인 초음파탐상검사 직접접촉법으로 주사시 탐촉자와 자성 검사체 표면간 접촉매질의 일정한 높이의 얇은막을 유지하여 음에너지를 일정하게 연결통로를 만들어 항상 동일한 품질의 음에너지를 얻을 수 있도록 하여 간편하게 연속적 주사가 가능한 초음파 탐상검사장치에 있어서Patent Document 10-2010-0006853 discloses a general ultrasonic inspection method in which a thin film of constant height of the contact medium between the probe and the surface of the magnetic inspection object is maintained at the time of scanning by the direct contact method, In an ultrasonic inspection apparatus capable of performing continuous scanning easily

탐촉자 형태에 따라 삽입할 수 있도록 배면 내부에 탐촉자 삽입구와 양측지지대 배면 중심에 영구자석을 삽입 고정하여 자성 검사체에 부착이 되게 하는 지지대와 양측 지지대 끝단부에 상하로 관통된 클램핑스크류너트를 만들어 클램핑스크류를 사용하여 자성 검사체 표면에서 일정높이를 조절하는 구조와 상부면에 탐촉자 위치조정을 위한 구조와 뒷면에 탐촉자 콘넥터를 삽입에 용의하게 개방된 콘넥터 삽입구와 앞면에 탐촉자를 고정하게 하는 구조와 양측면 지지대 외부 표면 하단부에 눈금표시부와 양측면 지지대 외부 표면 중앙에 엄지와 검지 위치에 요철형태의 홈을 만들어 미끄러지지 않고 편안하게 잡을수 있게 만든 구조를 포함하여 구성함을 특징으로 하는 초음파 탐상검사장치를 개시한다.In order to be able to insert according to the type of transducer, a permanent magnet is inserted and fixed to the center of the transducer insertion port and the back side of the both side supports in the backside to form a clamping screw to be attached to the magnetic inspection body and a clamping screw nut penetrating the upper and lower ends of both side supporting rods, It has a structure to adjust the height of the magnetic inspection object by using a screw, a structure for adjusting the position of the probe on the upper surface, a connector insertion opening for insertion of the probe connector on the rear surface and a structure for fixing the probe on the front surface And a structure in which recesses and recesses are formed in the thumb and the detection position at the center of the scale display portion and the outer surface of the side surface support portion at the lower end portion of the outer surface of the both side support bases, thereby making it possible to hold the device smoothly without slipping .

본 발명은 전기 자동차용 배터리 양산 검사라인에서 내부 구조물의 배치가 주기적으로 반복되는 전기차용 배터리에 대해서 초음파 비파괴 검사를 통해서 불량을 자동으로 판단하는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법에 관한 것이다.The present invention relates to an apparatus and method for automatically diagnosing battery fault in an electric vehicle using ultrasonic transmission and reception in which an internal structure is periodically repeated in a battery mass production inspection line for an electric vehicle and the defectiveness of the battery is automatically determined through ultrasonic nondestructive inspection .

본 발명은 양산 라인에서 생산되는 대량의 전기차용 배터리 내부 구조 불량품을 전문적인 초음파 기술자 없이도 구조물의 공진 특성을 이용한 프로그램화된 판별방법으로 배터리 내부 불량품을 선별할 수 있는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법를 제공하기 위한 것이다.The present invention relates to a method for distinguishing defective internal structure of a battery for a large quantity of electric vehicles produced in a mass production line by a programmed discrimination method using a resonance characteristic of a structure without a professional ultrasonic engineer, And an automatic discrimination apparatus and method.

본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법은, 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법에 있어서, 케이스 내부에 일정한 간격으로 주기적 반복되게 배치 고정된 전극 결합체 형상에 의해 발생하는 초음파 공진 및 그 공진 주파수(f_0) 또는 그 의 하모닉 주파수((Harmonic Frequency, 배수주파수)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2, 이질적 주파수)의 피크 레벨을 비교하여 일정 비율 이상인 경우, The method for automatically discriminating a battery defect in an electric vehicle using ultrasonic transmission and reception according to the present invention is a method for automatically discriminating a battery fault in an electric vehicle using ultrasonic transmission and reception, Resonance and the peak level of the reflected wave level L-0 and the frequency (f_2, heterogeneous frequency) not the resonance frequency at the resonance frequency f_0 or its harmonic frequency (the harmonic frequency) Occation,

Figure pat00001
Figure pat00001

불량으로 판정하는 것을 특징으로 한다.It is judged as defective.

본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법에 있어서, 초음파 신호습득부(50)에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부는, 공진 주파수(f_0)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨의 차이값과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨을 비교하여 일정값 이상인 경우 In the automatic battery fault determination method for an electric vehicle using the ultrasonic transmission / reception of the present invention, the time-frequency ultrasound signal received by the ultrasound signal acquisition unit 50 is subjected to frequency analysis to calculate a level for each frequency, The signal processing section for determining the peak level of the frequency f_2 that is not the resonance frequency and the difference between the peak level of the reflected wave level L-0 and the frequency f_2 that is not the resonance frequency at the resonance frequency f_0 Compared to a certain value or more

Figure pat00002
Figure pat00002

전기차 배터리 내부 품질불량으로 판정한다.It is judged that the quality of the interior of the electric car battery is defective.

본 발명의 전기 자동차용 배터리 양산 검사라인의 초음파 송수신을 이용한 불량 자동 판별 장치는, 전기 자동차용 배터리 양산 검사라인의 초음파 송수신을 이용한 불량 자동 판별 장치에 있어서, 초음파형을 생성시키는 초음파 발생기와; 배터리 외곽에 장착되어 상기 초음파 발생기에서 전송된 초음파 신호를 생성하여 배터리 배부에 전달하는 초음파 발신자와; 상기 초음파 발신자를 배터리 외곽에 장착, 고정시키는 발신자 고정수단과, 상기 배터리에서 에코(Echo) 되는 초음파를 수신하는 초음파 수신자와, 상기 초음파 수신자에서 수신된 초음파 신호를 증폭하며 필요시 디지털 변환하는 초음파 신호습득부와, 상기 초음파 신호습득부에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부와, 상기 신호처리부에서 수신된 시간축 신호 또는 주파수 분석 데이터를 출력하고, 불량 또는 정상 알람을 외부로 표출하는 디스플레이부를 포함하여 구성된다.A faulty automatic discrimination apparatus using ultrasonic transmission and reception of an electric vehicle battery mass production inspection line according to the present invention comprises an ultrasonic generator for generating an ultrasonic wave type by using ultrasonic transmission and reception of a battery mass production inspection line for an electric vehicle; An ultrasonic transmitter mounted on an outer surface of the battery to generate an ultrasonic signal transmitted from the ultrasonic generator and transmit the generated ultrasonic signal to a battery distribution; An ultrasonic receiver for receiving an ultrasonic wave echoed from the battery, an ultrasonic receiver for amplifying the ultrasonic signal received from the ultrasonic receiver and digitally converting the ultrasonic signal received from the ultrasonic receiver, A signal processing unit for calculating a frequency level by frequency analysis of the time ultrasonic signal received by the ultrasonic signal acquiring unit and determining whether the internal structure is defective based on the analysis signal; Or frequency analysis data, and displays a faulty or normal alarm to the outside.

본 발명에 따르는 경우, 전기 자동차용 배터리 양산 검사라인에서 내부 구조물의 배치가 주기적으로 반복되는 전기차용 배터리에 대해서 초음파 비파괴 검사를 통해서 불량을 자동으로 판단하는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법이 제공된다.According to the present invention, there is provided an automatic battery fault diagnosis device for an electric vehicle using an ultrasonic transmission / reception device for automatically determining a defect through an ultrasonic nondestructive inspection for an electric vehicle battery in which the arrangement of internal structures is periodically repeated in an electric vehicle battery mass production inspection line And methods are provided.

본 발명에 따르는 경우 양산 라인에서 생산되는 대량의 전기차용 배터리 내부 구조 불량품을 전문적인 초음파 기술자 없이도 구조물의 공진 특성을 이용한 프로그램화된 판별방법으로 배터리 내부 불?c품을 선별할 수 있는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법이 제공된다.In accordance with the present invention, a large amount of defective internal structure of an electric vehicle battery produced by a mass production line can be detected by a programmed discrimination method using a resonance characteristic of a structure without a professional ultrasonic engineer, and an ultrasonic transmission / An apparatus and a method for automatically discriminating a battery failure for an electric vehicle are provided.

도 1은 본 발명의 검사 대상이 되는 통상적인 전기차용 배터리 구성도.
도 2는 본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 구성도.
도 3는 본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법 개념 설명도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram of a typical battery for an electric vehicle to be inspected according to the present invention. Fig.
2 is a block diagram of an apparatus for automatically detecting a battery fault in an electric vehicle using the ultrasonic transmission / reception of the present invention.
3 is a conceptual explanatory diagram of a method for automatically determining a battery fault for an electric vehicle using the ultrasonic transmission / reception of the present invention.

본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법에 대하여 첨부된 도면을 참조하여 상세하게 설명한다. 도 1은 본 발명의 검사 대상이 되는 통상적인 전기차용 배터리 구성도, 도 2는 본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 구성도이고, 도 3는 본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법 개념 설명도이다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus and method for automatically detecting a battery fault in an electric vehicle using the ultrasonic transmission / reception of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram of a typical battery for an electric vehicle to be inspected according to the present invention. FIG. 2 is a block diagram of an automatic battery fault determination device for an electric vehicle using the ultrasonic transmission / reception of the present invention. FIG. 7 is a conceptual illustration of a method for automatically determining a battery defect in a car.

도 1, 도 2, 도 3에 도시된 바와 같이, 본 발명의 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법은, 케이스(10) 내부에 일정한 간격으로 주기적 반복되게 배치 고정된 전극 결합체(20) 형상에 의해 발생하는 초음파 공진 및 그 공진 주파수(f_0) 또는 그 의 하모닉 주파수((Harmonic Frequency, 배수주파수)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2, 이질적 주파수)의 피크 레벨을 비교하여 일정 비율 이상인 경우, 1, 2, and 3, an automatic battery fault determination method for an electric vehicle using the ultrasonic transmission / reception of the present invention includes an electrode assembly 20 which is periodically and repeatedly arranged and fixed in a case 10 at regular intervals, And a peak level of a frequency (f_2, heterogeneous frequency) not equal to the resonance frequency and the reflected wave level (L-0) at the resonance frequency f_0 or its harmonic frequency (Harmonic frequency) If the ratio is more than a certain ratio,

Figure pat00003
Figure pat00003

불량으로 판정한다.It is judged to be defective.

도 1, 도 2, 도 3에 도시된 바와 같이, 초음파 신호습득부(50)에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부(60)는, 공진 주파수(f_0)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨의 차이값과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨을 비교하여 일정값 이상인 경우 As shown in FIGS. 1, 2 and 3, the time-frequency ultrasonic signal received by the ultrasonic signal acquiring unit 50 is subjected to frequency analysis to calculate a level for each frequency, and whether or not the internal structure is defective is determined based on the analysis signal The signal processing unit 60 calculates the peak level of the frequency f_2 which is not the resonance frequency and the difference between the peak level of the reflected wave level L-0 and the frequency f_2 that is not the resonance frequency at the resonance frequency f_0 Compared to a certain value or more

Figure pat00004
Figure pat00004

전기차 배터리 내부 품질불량으로 판정한다.It is judged that the quality of the interior of the electric car battery is defective.

도 1, 도 2, 도 3에 도시된 바와 같이, 본 발명의 전기 자동차용 배터리 양산 검사라인의 초음파 송수신을 이용한 불량 자동 판별 장치는, 초음파형을 생성시키는 초음파 발생기(10)와; 배터리(1) 외곽에 장착되어 상기 초음파 발생기(10)에서 전송된 초음파 신호를 생성하여 배터리 배부에 전달하는 초음파 발신자(20)와; 상기 초음파 발신자(10)를 배터리(1) 외곽에 장착, 고정시키는 발신자 고정수단(30)과, 상기 배터리(1)에서 에코(Echo) 되는 초음파를 수신하는 초음파 수신자(40)와, 상기 초음파 수신자(40)에서 수신된 초음파 신호를 증폭하며 필요시 디지털 변환하는 초음파 신호습득부(50)와, 상기 초음파 신호습득부(50)에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부(60)와, 상기 신호처리부(60)에서 수신된 시간축 신호 또는 주파수 분석 데이터를 출력하고, 불량 또는 정상 알람을 외부로 표출하는 디스플레이부(70)를 포함하여 구성된다.As shown in FIGS. 1, 2 and 3, a faulty automatic discrimination apparatus using ultrasonic transmission and reception in a battery mass production inspection line for an electric vehicle according to the present invention comprises: an ultrasonic generator 10 for generating an ultrasonic wave; An ultrasonic transmitter 20 mounted on the outer periphery of the battery 1 to generate an ultrasonic signal transmitted from the ultrasonic generator 10 and transmit the ultrasonic signal to a battery distribution; A transmitter fixing means 30 for fixing and fixing the ultrasonic transmitter 10 to the outside of the battery 1, an ultrasonic receiver 40 for receiving ultrasonic waves echoed from the battery 1, An ultrasound signal acquisition unit 50 for amplifying the ultrasound signal received from the ultrasound signal acquisition unit 40 and digitizing the ultrasound signal if necessary, and a control unit 50 for frequency-analyzing the ultrasound signal received by the ultrasound signal acquisition unit 50, A signal processing unit 60 for determining whether the internal structure is defective based on the analysis signal, a display unit 60 for outputting time-base signals or frequency analysis data received by the signal processing unit 60, 70).

상기 신호처리부(60)는 케이스(10) 내부에 일정한 간격으로 주기적 반복되게 배치 고정된 전극 결합체(20) 형상에 의해 발생하는 초음파 공진 및 그 공진 주파수(f_0)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨을 비교하여 일정 비율 이상인 경우, The signal processing unit 60 includes ultrasonic resonance generated by the shape of the electrode assembly 20 periodically and repeatedly arranged at regular intervals in the case 10 and the reflected wave levels L-0 and L- (F_2), which is not the resonance frequency,

Figure pat00005
Figure pat00005

불량으로 판정한다.It is judged to be defective.

본 발명은 상기에서 언급한 바람직한 실시예와 관련하여 설명됐지만, 본 발명의 범위가 이러한 실시예에 한정되는 것은 아니며, 본 발명의 범위는 이하의 특허청구범위에 의하여 정하여지는 것으로 본 발명과 균등 범위에 속하는 다양한 수정 및 변형을 포함할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, ≪ RTI ID = 0.0 > and / or < / RTI >

아래의 특허청구범위에 기재된 도면부호는 단순히 발명의 이해를 보조하기 위한 것으로 권리범위의 해석에 영향을 미치지 아니함을 밝히며 기재된 도면부호에 의해 권리범위가 좁게 해석되어서는 안될 것이다.It is to be understood that the appended claims are intended to supplement the understanding of the invention and should not be construed as limiting the scope of the appended claims.

10 : 초음파 발생기
20 : 초음파 발신자
30 : 발신자 고정수단
40 : 초음파 수신자
50 : 초음파 신호습득부
60 : 신호처리부
70 : 디스플레이부10: Ultrasonic generator
20: Ultrasonic sender
30: Caller fixing means
40: Ultrasound receiver
50: ultrasound signal acquisition unit
60: Signal processor
70:

Claims (3)

초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법에 있어서,
케이스(10) 내부에 일정한 간격으로 주기적 반복되게 배치 고정된 전극 결합체(20) 형상에 의해 발생하는 초음파 공진 및 그 공진 주파수(f_0) 또는 그 의 하모닉 주파수((Harmonic Frequency, 배수주파수)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2, 이질적 주파수)의 피크 레벨을 비교하여 일정 비율 이상인 경우,

Figure pat00006

불량으로 판정하는 것을 특징으로 하는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법.
A method for automatically identifying a battery fault in an electric vehicle using ultrasonic transmission / reception,
The ultrasonic resonance generated by the shape of the electrode assembly 20 which is periodically and repeatedly arranged and fixed in the case 10 at a predetermined interval and the ultrasonic resonance generated by the resonance frequency f_0 or its harmonic frequency (Harmonic Frequency, (F-2, heterogeneous frequency), which is not a resonance frequency, with a peak level of the frequency (L-0)

Figure pat00006

And determining that the battery is defective.
제1항에 있어서,
초음파 신호습득부(50)에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부(60)는,
공진 주파수(f_0)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨의 차이값과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨을 비교하여 일정값 이상인 경우

Figure pat00007

전기차 배터리 내부 품질불량으로 판정하는 것을 특징으로 하는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법.
The method according to claim 1,
A signal processing unit (60) for frequency-analyzing the time-ultrasonic signal received by the ultrasonic signal acquiring unit (50) to calculate a level for each frequency and determining whether the internal structure is defective based on the analysis signal,
When the difference between the peak level of the reflected wave level L-0 and the peak level of the frequency f_2 that is not the resonance frequency at the resonance frequency f_0 is compared with the peak level of the frequency f_2 that is not the resonance frequency)

Figure pat00007

And determining that the quality of the inside of the electric car battery is defective.
전기 자동차용 배터리 양산 검사라인의 초음파 송수신을 이용한 불량 자동 판별 장치에 있어서,
초음파형을 생성시키는 초음파 발생기(10)와;
배터리(1) 외곽에 장착되어 상기 초음파 발생기(10)에서 전송된 초음파 신호를 생성하여 배터리 배부에 전달하는 초음파 발신자(20)와;
상기 초음파 발신자(10)를 배터리(1) 외곽에 장착, 고정시키는 발신자 고정수단(30)과,
상기 배터리(1)에서 에코(Echo) 되는 초음파를 수신하는 초음파 수신자(40)와,
상기 초음파 수신자(40)에서 수신된 초음파 신호를 증폭하며 필요시 디지털 변환하는 초음파 신호습득부(50)와,
상기 초음파 신호습득부(50)에서 수신된 시간 초음파 신호를 주파수 분석하여 주파수별 레벨을 연산하고, 분석 신호를 기초로 내부 구조 불량 여부를 판정하는 신호처리부(60)와,
상기 신호처리부(60)에서 수신된 시간축 신호 또는 주파수 분석 데이터를 출력하고, 불량 또는 정상 알람을 외부로 표출하는 디스플레이부(70),
를 포함하여 구성되되,

상기 신호처리부(60)는
케이스(10) 내부에 일정한 간격으로 주기적 반복되게 배치 고정된 전극 결합체(20) 형상에 의해 발생하는 초음파 공진 및 그 공진 주파수(f_0)에서 반사파 레벨(L-0)과 공진 주파수가 아닌 주파수(f_2))의 피크 레벨을 비교하여 일정 비율 이상인 경우,

Figure pat00008

불량으로 판정하는 것을 특징으로 하는 초음파 송수신을 이용한 전기차용 배터리 자동 불량 판별 장치.
A faulty automatic discrimination apparatus using ultrasonic transmission and reception of an electric vehicle battery mass production inspection line,
An ultrasonic generator 10 for generating an ultrasonic wave;
An ultrasonic transmitter 20 mounted on the outer periphery of the battery 1 to generate an ultrasonic signal transmitted from the ultrasonic generator 10 and transmit the ultrasonic signal to a battery distribution;
A transmitter fixing means 30 for fixing and fixing the ultrasonic transmitter 10 to the outside of the battery 1,
An ultrasonic receiver 40 for receiving ultrasonic waves echoed from the battery 1,
An ultrasound signal acquisition unit 50 for amplifying the ultrasound signal received by the ultrasound receiver 40 and digitizing the ultrasound signal if necessary,
A signal processor 60 for frequency-analyzing the ultrasound signal received by the ultrasound signal acquiring unit 50 to calculate a level for each frequency, and determining whether the internal structure is defective based on the analysis signal;
A display unit 70 for outputting time-base signals or frequency analysis data received by the signal processing unit 60 and displaying a faulty or normal alarm to the outside,
, ≪ / RTI >

The signal processing unit 60
The ultrasonic resonance generated by the shape of the electrode assembly 20 which is periodically and repeatedly arranged and fixed in the case 10 at a constant interval and the resonance frequency f_0 and the reflected wave level L- )) Are compared with each other,

Figure pat00008

And determining that the battery is defective.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118943A (en) * 2019-04-11 2019-08-13 华中科技大学 A kind of broadband ultrasonic probe, ultrasonic receiver and its application
WO2021029583A1 (en) * 2019-08-09 2021-02-18 주식회사 엘지화학 Quantitative diagnostic method for quality of manufacturing equipment
WO2023033522A1 (en) * 2021-08-31 2023-03-09 주식회사 엘지에너지솔루션 Device and method for detecting internal defect of battery cell by using tdr
US20230138536A1 (en) * 2020-02-18 2023-05-04 Shenzhen University Battery malfunction detection method and system, and computer product

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005108801A (en) * 2003-09-11 2005-04-21 Nissan Motor Co Ltd Defect detection device for laminated body and inspecting device for fuel cell
JP2010190884A (en) * 2009-01-22 2010-09-02 Mitsubishi Electric Corp Crack detection support device and crack detection support method
KR101118148B1 (en) * 2007-03-10 2012-03-12 세르게이 오스타펜코 A method and apparatus for in-line quality control of wafers
JP2014049401A (en) * 2012-09-04 2014-03-17 Nissan Motor Co Ltd Battery state estimation device, vehicle including the battery state estimation device, and battery state estimation method
KR20160023157A (en) * 2014-08-21 2016-03-03 삼성전자주식회사 Apparatus for analyzing active material of secondary battery and method for analyzing active material using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005108801A (en) * 2003-09-11 2005-04-21 Nissan Motor Co Ltd Defect detection device for laminated body and inspecting device for fuel cell
KR101118148B1 (en) * 2007-03-10 2012-03-12 세르게이 오스타펜코 A method and apparatus for in-line quality control of wafers
JP2010190884A (en) * 2009-01-22 2010-09-02 Mitsubishi Electric Corp Crack detection support device and crack detection support method
JP2014049401A (en) * 2012-09-04 2014-03-17 Nissan Motor Co Ltd Battery state estimation device, vehicle including the battery state estimation device, and battery state estimation method
KR20160023157A (en) * 2014-08-21 2016-03-03 삼성전자주식회사 Apparatus for analyzing active material of secondary battery and method for analyzing active material using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118943A (en) * 2019-04-11 2019-08-13 华中科技大学 A kind of broadband ultrasonic probe, ultrasonic receiver and its application
WO2021029583A1 (en) * 2019-08-09 2021-02-18 주식회사 엘지화학 Quantitative diagnostic method for quality of manufacturing equipment
EP3961204A4 (en) * 2019-08-09 2022-07-06 LG Energy Solution, Ltd. Quantitative diagnostic method for quality of manufacturing equipment
US20230138536A1 (en) * 2020-02-18 2023-05-04 Shenzhen University Battery malfunction detection method and system, and computer product
WO2023033522A1 (en) * 2021-08-31 2023-03-09 주식회사 엘지에너지솔루션 Device and method for detecting internal defect of battery cell by using tdr

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