Resonator for vehicle

A resonator for a vehicle, which reduces intake noise by using a resonance chamber for frequency tuning, the resonator comprising:

• an outer pipe having a first outer pipe with an inlet for introducing external air and a second outer pipe with an outlet for discharging the air introduced into the inlet to outside;
• an inner pipe disposed inside the outer pipe and having a plurality of slits for giving a passage of air;
• and
• an expansion pipe inserted between the outer pipe and the inner pipe to partition a space between the outer pipe and the inner pipe into a plurality of spaces and thus partition the resonance chamber into a plurality of regions,
• wherein the expansion pipe comprises:
• an internal coupling unit coupled to the inner pipe;
• an external coupling unit coupled to the outer pipe;
• and
• a plurality of bent portions extending in a direction perpendicular to the inner pipe and the outer pipe, and
• wherein the plurality of bent portions comprises:
• a first bent portion disposed adjacent to the inlet and having one end connected to the internal coupling unit in a perpendicular direction;
• a second bent portion having one end connected to the internal coupling unit in a perpendicular direction and the other end connected to the external coupling unit in a perpendicular direction;
• and
• a third bent portion disposed adjacent to the outlet and having one end connected to the external coupling unit in a perpendicular direction.