Indoor unit for air conditioner

An indoor unit for an air conditioner, comprising:

• a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet;
• a filter mounting member movably disposed in rear of the cabinet assembly;
• a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port;
• a mobile member connected to the filter mounting member and moving a position of the filter mounting member;
• and
• a driving device pressing the mobile member to change the position of the filter mounting member,
• wherein the mobile member comprises
• a first link connected between the cabinet assembly and the filter mounting member;
• a second link connected between the cabinet assembly and the filter mounting member and having a different length from the first link;
• and
• a drive transmission link transferring forces generated by the driving device to the first link.