Package-type compressor

Abstract

A package-type compressor is provided which reduces the leakage of noise generated by a heat exchanger without suppressing the flow rate of cooling air to an electric motor. The package-type compressor includes a cooling fan 12 that induces a flow of cooling air, an inlet duct 15 A that introduces the cooling air from a cooling air inlet 13 A to heat exchangers 3 to 6 , a plurality of louvers 16 disposed in the inside of the inlet duct 15 A, and another inlet duct 15 B that introduces the cooling air from another cooling air inlet 13 B to an electric motor 1 . The cooling air inlet 13 A is disposed such that the position thereof in the vertical direction is same as that of the heat exchangers 3 to 6 . Each of the louvers 16 has a linear portion 19 A that extends in a direction perpendicular to the cooling air passage surface of the heat exchangers 3 to 6 such that it is inclined to the upper side toward the heat exchangers 3 to 6 and another linear portion 19 B that extends in a direction diagonal to the cooling air inlet 13 A such that it is inclined to the upper side toward the cooling air inlet 13 A.

1 . A package-type compressor comprising:
 an electric motor;   a compressor main body that is driven by the electric motor to compress gas;   a heat exchanger of air cooling type, the heat exchanger being disposed above the electric motor and cooling fluid;   a housing that accommodates the electric motor, the compressor main body, and the heat exchanger therein;   a first cooling air inlet formed on one side surface of the housing;   a second cooling air inlet formed on the one side surface or another side surface of the housing;   a cooling air outlet formed on an upper surface of the housing;   a cooling fan that induces a flow of cooling air that is taken in from the first and second cooling air inlets and exhausted from the cooling air outlet;   a first inlet duct that introduces the cooling air from the first cooling air inlet to the heat exchanger;   a plurality of louvers disposed in a spaced relation from each other in a vertical direction in an inside of the first inlet duct; and   a second inlet duct that is disposed on a lower side of the first inlet duct and introduces the cooling air from the second cooling air inlet to the electric motor,   the heat exchanger being inclined at a cooling air passage surface thereof with respect to the vertical direction, wherein   the first cooling air inlet is disposed such that a position thereof in the vertical direction is same as that of the heat exchanger, and   each of the plurality of louvers has a first linear portion that extends in a direction perpendicular to the cooling air passage surface of the heat exchanger such that the first linear portion is inclined to one side in the vertical direction toward the heat exchanger and a second linear portion that extends in a direction diagonal to the first cooling air inlet such that the second linear portion is inclined to the one side in the vertical direction toward the first cooling air inlet.   
     
     
         2 . The package-type compressor according to  claim 1 , wherein
 an inclination angle of the second linear portion with respect to a horizontal plane is smaller than an inclination angle of the first linear portion with respect to the horizontal plane.   
     
     
         3 . The package-type compressor according to  claim 1 , wherein
 each of the plurality of louvers further has a curved portion or a third linear portion interposed between the first linear portion and the second linear portion.