Fuel cell humidifier

A humidifier for fuel cells, the humidifier comprising:

• a humidifying module configured to humidify dry gas supplied from outside using wet gas discharged from a fuel cell stack;
• and
• a first cap coupled to one end of the humidifying module, wherein
• the humidifying module comprises:
• a mid-case;
• and at least one cartridge disposed in the mid-case, the cartridge being configured to receive a plurality of hollow fiber membranes,
• the humidifier further comprises a first packing member airtightly coupled to at least one end of the humidifying module through mechanical assembly such that the first cap fluidly communicates with only the hollow fiber membranes,
• the first packing member is brought into tight contact with the cartridge using pressure of at least one of dry gas and wet gas,
• the humidifying module comprises a first elastic member coupled to the first packing member, and
• the first elastic member brings the first packing member into tight contact with the cartridge using elastic force thereof,
• wherein the first packing member comprises:
• a first outer surface disposed so as to face the first cap;
• a first outer groove formed in the first outer surface;
• and a first outer member configured to contact the cartridge between the first outer groove and the cartridge and
• the first elastic member is inserted into the first outer groove to bring the first outer member into tight contact with the cartridge.

A humidifier for fuel cells the humidifier comprising:

• a humidifying module configured to humidify dry gas supplied from outside using wet gas discharged from a fuel cell stack;
• and
• a first cap coupled to one end of the humidifying module, wherein
• the humidifying module comprises:
• a mid-case;
• and at least one cartridge disposed in the mid-case, the cartridge being configured to receive a plurality of hollow fiber membranes,
• the humidifier further comprises a first packing member airtightly coupled to at least one end of the humidifying module through mechanical assembly such that the first cap fluidly communicates with only the hollow fiber membranes,
• the first packing member is brought into tight contact with the cartridge using pressure of at least one of dry gas and wet gas,
• the first packing member comprises:
• a first outer groove configured to receive dry gas located between the first cap and the cartridge;
• and a first packing body having the first outer groove formed therein, and
• the first cap comprises a first supporting member inserted into the first outer groove, the first supporting member being configured to support the first packing body.