Staged Helium Injection for Sealed Battery Leak Detection

The patent applies dynamics by transitioning from static high-pressure injection to dynamic staged pressure injection. The injection pressure is dynamically adjusted in multiple stages (first stage: low pressure, second stage: high pressure) based on the timing of the process, allowing the system to adapt to different requirements at different times - reducing leakage when needed while preventing electrolyte blowoff during critical welding phases

The patent implements periodic action through staged pressure injection cycles. The helium injection is divided into periodic stages with distinct pressure levels - a first injection period at low pressure followed by a second injection period at high pressure. This periodic variation in injection pressure allows the system to achieve both leakage prevention and welding quality protection by applying appropriate pressure at appropriate times

The patent applies segmentation by dividing the single high-pressure injection process into multiple staged injection periods. The first stage uses low pressure to prevent harmful electrolyte attachment, while the second stage uses high pressure to achieve sufficient detection coverage. This segmentation of the injection process into distinct pressure stages allows simultaneous achievement of both coverage and harm prevention

The patent implements preliminary action by performing low-pressure helium injection before high-pressure injection. The first staged injection at low pressure prepares the system by preventing electrolyte attachment to the outer surface, creating favorable conditions for the subsequent high-pressure injection that achieves detection coverage without the harmful side effects