Cartridge for membrane humidifier, and fuel cell membrane humidifier comprising same

A fuel cell membrane humidifier performing moisture exchange between a first fluid and a second fluid and comprising:

• a mid-case;
• a second fluid inlet introducing the second fluid into the mid-case;
• a second fluid outlet discharging the second fluid to outside;
• and
• at least one cartridge disposed in the mid-case and accommodating a plurality of hollow fiber membranes,
• wherein the cartridge comprises:
• an inner case accommodating therein a hollow fiber membrane in which the first fluid flows, and comprising a material having a first hardness;
• a potting portion fixing a terminal of the hollow fiber membrane;
• a first mesh hole portion through which the second fluid is introduced, and comprising a plurality of windows;
• and
• a second mesh hole portion through which the second fluid introduced through the first mesh hole portion is discharged after exchanging moisture with the first fluid through the hollow fiber membrane, and comprising a plurality of windows, and
• at least any one of the first mesh hole portion and the second mesh hole portion comprises an impact-absorbing portion comprising a material having a second hardness less than the first hardness.