Outdoor unit of air conditioner

An air conditioner outdoor unit comprising:

• a box-shaped casing including a bottom wall, top wall and a plurality of side walls, said casing having a first partition wall which is set in the casing substantially in parallel with the bottom wall and top wall to divide the casing interior into an upper chamber, facing top wall, and a lower chamber, facing the bottom wall, and a second partition wall which is built in the lower chamber substatially perpendicular to the bottom wall to divide the lower chamber into a heat exchanger chamber and machine chamber, said second partition wall being fixed to said first partition wall on a first end surface and being fixed to said bottom wall on a second end surface so that said first and second partition walls form a "T";
• a heat exchanger arranged in the heat exchanger chamber;
• a blowing unit arranged in the heat exchanger chamber, the unit including a support member having one end fixed to the bottom wall and the other end fixed to the first partition wall, and a blower attached to the support member and facing the heat exchanger;
• a compressor installed in the machine chamber;
• and
• electric parts arranged in the upper chamber and positioned above the heat exchanger chamber, for controlling the operation of the blower and compressor.