Patent ID: 11793236

Abstract:
The present disclosure provides a dual-seal reverse pressure differential cartridge E-liquid injection method. The method includes: selecting an E-liquid guiding body configured to absorb, to a maximum degree, an E-liquid stored in an E-liquid storage tank, to avoid leakage of the E-liquid, while providing a smooth supply of the E-liquid. The method also includes assembling the E-liquid guiding body with a cartridge that includes an E-liquid storage tank. The E-liquid guiding body is in fluidic communication with the E-liquid in the E-liquid storage tank. In a negative pressure environment, the E-liquid is injected into the E-liquid storage tank. The E-liquid has a pressure P1. After the injection is completed, the cartridge is placed in a sealing bag, which is then sealed. The pressure inside the sealing bag is P2, P2>P1. The disclosed method can effectively avoid leakage of the E-liquid due to pressure changes in the external atmosphere.