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US 2022/0339836 A1Published application
System and method for ultrasonic inspection
AssigneeLG Energy Solution, Ltd.
InventorsWonseok CHOI, Jaehyun BAE, Kangil LEE, Nahee OH
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Abstract
An ultrasonic inspection system determines whether or not a thermally conductive resin forming a thermally conductive resin layer is filled through a waveform change of an ultrasonic wave measured by transmitting the ultrasonic wave toward a portion of an edge of a bottom surface of a module frame from the outside.
Claims10
An ultrasonic inspection system, comprising:
- a battery module comprising:
- a battery cell stacked body in which a plurality of battery cells are stacked;
- a module frame accommodating the battery cell stacked body;
- and
- a thermally conductive resin layer formed by liquid-injecting a thermally conductive resin between a lower end of the battery cell stacked body and a bottom surface of the module frame;
- and
- at least one ultrasonic sensor contacting an exterior surface of the module frame,
- wherein the at least one ultrasonic sensor determines the thermally conductive resin forming the thermally conductive resin layer is filled through a waveform change of an ultrasonic wave measured by transmitting the ultrasonic wave toward a portion of an edge of the bottom surface of the module frame from outside of the module frame.
5 more elements
An ultrasonic inspection method, comprising:
- liquid-injecting a thermally conductive resin through at least one liquid-injection hole formed in a bottom surface of a module frame;
- stopping the liquid-injecting of the thermally conductive resin and disposing at least one ultrasonic sensor on one portion of an outer edge of the bottom surface of the module frame;
- transmitting an ultrasonic wave into the bottom surface of the module frame through the ultrasonic sensor;
- and
- determining whether the thermally conductive resin is filled according to a waveform of the ultrasonic wave.
2 more elements
Dependencies are inferred from the claim text.