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).

    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,불량으로 판정하는 것을 특징으로 하는 초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 방법.


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    Title :

    Automated Ultra Sonic Inspection System


    Additional title:

    초음파 송수신을 이용한 전기차용 배터리 불량 자동 판별 장치 및 방법


    Contributors:

    Publication date :

    2018-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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