Air conditioning machine

An air conditioning machine comprising:

• an air conditioning main body having an inlet port and an outlet port;
• an air blowing fan, provided in the air conditioning main body, for introducing air in a room into the air conditioning main body through the inlet port and blowing the air into the room through the outlet port, the air blowing fan having a circular cross section;
• and
• a heat exchanger provided in an indoor air introducing side of the air blowing fan, bent at a portion along a longitudinal direction of the heat exchanger at an acute angle, and having a front side heat exchanger located on a front side of the air conditioning machine and curved along the circular cross section of the air blowing fan and a rear side heat exchanger located on a rear side thereof,
• the air blowing fan is a cross flow fan in which a plurality of blades are arranged at regular intervals in a circumferential direction;
• the heat exchanger comprises a number of heat radiating fins arranged in parallel at small intervals and heat exchanging pipes inserted through the heat radiating fins;
• and
• each of the heat radiating fins has a cut portion, which is bent at an acute angle so as to form the front side heat exchanger and the rear side heat exchanger,
• wherein the air conditioning main body has a front inlet port opposing to the front side heat exchanger and a rear inlet port opposing to the rear side heat exchanger,
• wherein the heat exchanging pipes in the rear side heat exchanger have a heat exchanging efficiency lower than that of the heat exchanging pipes in the front side heat exchanger.