| 摘要 |
The present invention provides an acoustic filter having a structure that does not affect upon the characteristics of an acoustic filter. This acoustic filter (1) is equipped with a filter case (10) having an air pressure inlet (12), a filter cap (50) having an air pressure outlet (56), and a ring-shaped packing component (80) attached to the air pressure outlet. A welding conjunction structure is employed between the filter case and the filter cap. <IMAGE> |
