JP2018204521A - Package type compressor - Google Patents

Abstract

To provide a package type compressor which can reduce noise leaking from a suction port to the outside.SOLUTION: A package type compressor 1 of the invention includes: a case 10 provided with a first suction port 14, a second suction port 15, and an exhaust port 16; a compressor body 20; a motor 21; an inverter 30; an inverter cooling mechanism 31; a heat exchanger 41; a cooling fan 40 for blowing air to the heat exchanger; a first partition part 12; and a second partition part 13. The package type compressor includes: a first chamber defined by the first partition part, the second partition part, and the case; a second chamber defined by the first partition part and the case; a third chamber defined by the second partition part and the case; a first suction passage which fluidically connects the first suction port with the cooling fan; and a second suction passage which fluidically connects the second suction port with the first suction passage.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a package type compressor.

  The package type compressor of patent document 1 is provided with the compressor main body, the motor, the inverter, and the cooling fan, and the inverter is provided in the intake path of the cooling air by the cooling fan. Further, Patent Document 1 discloses a package compressor including an intake port that allows cooling air to flow into the cooling fan without passing through the inverter, in addition to the intake port that guides the cooling air to the cooling fan through the inverter. Yes. This package type compressor can improve the cooling efficiency of the compressor main body by cooling the compressor main body using the cooling air directly taken from the outside in addition to the cooling air for cooling the inverter.

Japanese Patent Laying-Open No. 2006-75169

  However, in the package type compressor disclosed in Patent Document 1, the cooling air intake for cooling the compressor main body is directly connected to the machine room, so that noise generated in the compressor main body leaks outside through the intake.

  An object of this invention is to provide the package type compressor which can reduce the noise which leaks outside from an inlet port.

  The present invention relates to a case provided with a first intake port, a second intake port, and an exhaust port, a compressor body that compresses gas, a motor that drives the compressor body, and a rotational speed of the motor. An inverter for controlling, an inverter cooling mechanism for cooling the inverter, a heat exchanger for cooling the compressed gas compressed by the compressor body, a cooling fan for blowing air to the heat exchanger, and the case A first partition provided inside, a second partition provided inside the case and disposed away from the first partition in a predetermined direction, the first partition, and the second partition And a first chamber defined by the case and provided with the first air inlet, the compressor body, and the motor, and defined by the first partition and the case, the second air inlet, The inverter; and The second chamber in which the inverter cooling mechanism is provided, the third chamber that is defined by the second partition portion and the case, the exhaust port and the heat exchanger are provided, and the interior of the first chamber Then, the first air intake passage fluidly connecting the first air intake port and the cooling fan, and the second air intake port and the first air intake passage are fluidly connected inside the second chamber. A package type compressor is provided, which is connected and has a second intake passage in which an inverter cooling mechanism is arranged.

  The first chamber in which the compressor main body and the motor are arranged is fluidly connected to the first intake port by the first intake flow channel, and is connected to the second intake port by the first intake flow channel and the second intake flow channel. Fluidly connected. For this reason, the sound generated by the compressor main body, the motor, and the cooling fan is distributed to the first intake passage and the second intake passage. In addition, since the first chamber and the second chamber are separated by the first partition, the noise generated in the compressor body, the motor, and the cooling fan diffracts the first partition, and the second intake port Leaks from the outside. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and the noise that occurs in the compressor main body, the motor, and the cooling fan and leaks from the first intake port or the second intake port can be reduced.

  The first intake flow path includes a first flow path extending in the predetermined direction from the first intake port, and a second flow fluidly connected to the first flow path and extending in a direction intersecting the predetermined direction. A channel and a third channel that is fluidly connected to the second channel and extends in the predetermined direction may be provided.

  According to this configuration, the conduction direction of noise generated in the compressor main body, the motor, and the cooling fan is limited by the first intake flow path. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and noise that occurs in the compressor main body, the motor, and the cooling fan and leaks to the outside from the first air inlet can be reduced.

  The second intake flow path includes a fourth flow path extending in the predetermined direction from the second intake port, and a fifth flow fluidly connected to the fourth flow path and extending in a direction intersecting the predetermined direction. A road may be provided.

  According to this configuration, the conduction direction of noise generated in the compressor main body, the motor, and the cooling fan is limited by the second intake passage. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and noise that occurs in the compressor main body, the motor, and the cooling fan and leaks out from the second air inlet can be reduced.

  The second intake passage may include a cooling fan between the inverter cooling mechanism and the first intake passage.

  According to this configuration, cooling of the inverter can be promoted.

  A splitter-type silencer may be disposed in the first intake passage.

  According to this configuration, by providing the splitter-type silencer in the first intake passage, noise leaking from the first intake port and the second intake port to the outside of the case can be reduced while suppressing pressure loss. .

  A cell-type silencer may be disposed in the first intake flow path.

  According to this configuration, by providing the cell-type silencer in the first intake passage, noise leaking from the first intake port and the second intake port to the outside of the case can be reduced while suppressing pressure loss. .

  The compressor body may be an oil-free screw compressor.

  According to the present invention, it is possible to reduce noise leaking from the intake port to the outside.

The perspective view of the package type compressor which concerns on embodiment of this invention. II-II sectional view taken on the line of FIG. The front view of the package type compressor which concerns on embodiment of this invention. The figure similar to FIG. 3 of the modification of embodiment. The figure similar to FIG. 3 of the other modification of embodiment.

  Hereinafter, a package type compressor according to an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, the length direction, the width direction, and the height direction of the package compressor 1 of the present embodiment are referred to as an X direction, a Y direction, and a Z direction, respectively.

(overall structure)
Referring to FIGS. 1 to 3, the package compressor 1 of the present embodiment includes a box-shaped case 10. The package compressor 1 includes a compressor body 20, a motor 21, an inverter 30, a cooling fan 40, and a heat exchanger 41 inside the case 10.

  Referring to FIGS. 1 to 3, the case 10 has a front wall 10 a disposed on a plane perpendicular to the X direction (YZ plane), and a case 10 disposed on the YZ plane and spaced apart from the front wall 10 a in the X direction. And a wall 10b. Further, the case 10 includes an upper wall 10c and a lower wall 10d that are arranged on a vertical plane (XY plane) with respect to the Z direction and connect the end of the front wall 10a and the end of the rear wall 10b. Further, the case 10 includes a pair of side walls 10e and 10f that are disposed on a vertical plane (XZ plane) with respect to the Y direction and connect the end of the front wall 10a and the end of the rear wall 10b. That is, as shown in FIG. 2, the case 10 includes an inner space 11 surrounded by a front wall 10a, a rear wall 10b, an upper wall 10c, a lower wall 10d, and a pair of side walls 10e and 10f. The case 10 includes a first partition part 12 and a second partition part 13. The case 10 includes a first intake port 14, a second intake port 15, an exhaust port 16, and a suction filter 17. Specifically, a first intake port 14, a second intake port 15, and a suction filter 17 are provided on the front wall 10a, and an exhaust port 16 is provided on the upper wall 10c. Here, the front wall 10a, the rear wall 10b, the upper wall 10c, the lower wall 10d, and the pair of side walls 10e and 10f of the case 10 are formed of a metal plate such as an iron plate.

  The first partition portion 12 is disposed on the XY plane, and is disposed on the YZ plane, the horizontal portion 12a connecting the front wall 10a and the pair of side walls 10e, 10f, the lower wall 10d, the pair of side walls 10e, 10f, and And a vertical portion 12b connecting the ends of the horizontal portion 12a. The vertical portion 12b of the first partitioning portion 12 is disposed at a distance from the front wall 10a in the X direction so as to face the front wall 10a. An opening 12c is formed in the horizontal portion 12a, and the first partition 12 is formed of a metal plate such as an iron plate.

  The second partition portion 13 connects the upper wall 10c, the lower wall 10d, and the pair of side walls 10e and 10f, and is disposed closer to the rear wall 10b side in the X direction than the first partition portion 12. The second partition portion 13 is disposed on the YZ plane, and is disposed on the YZ plane, the first vertical portion 13a connecting the upper wall 10c and the pair of side walls 10e, 10f, and the lower wall 10d and the pair of side walls 10e, 10f. And a second vertical portion 13b connecting the two. Further, the second partitioning portion 13 is disposed to be inclined toward the lower wall 10d side in the Z direction toward the rear wall 10b side in the X direction, and is arranged at the end of the first vertical portion 13a and the end of the second vertical portion 13b. And an inclined portion 13c that connects the pair of side walls 10e and 10f. The inclined portion 13c may be perpendicular to the first vertical portion 13a and the second vertical portion 13b. An opening 13d is formed in the second vertical portion 13b, and the second partition portion 13 is formed of a metal plate such as an iron plate.

  Referring to FIGS. 2 and 3, the first air inlet 14 is an opening provided in the front wall 10 a on the upper wall 10 c side with respect to the horizontal portion 12 a of the first partition portion 12, and includes the internal space 11 and the case 10. The outside is in communication. Air used for cooling the compressor body 20, the motor 21, and the heat exchanger 41 is introduced from the outside of the case 10 into the internal space 11 through the first air inlet 14.

  The second intake port 15 is a rectangular opening provided in the front wall 10 a on the lower wall 10 d side with respect to the horizontal portion 12 a of the first partition portion 12, and communicates the internal space 11 with the outside of the case 10. Yes. Air used for cooling the inverter 30 is introduced from the outside of the case 10 into the internal space 11 through the second air inlet 15.

  Referring to FIG. 2, the exhaust port 16 is provided in the upper wall 10 c on the rear wall 10 b side with respect to the first vertical portion 13 a of the second partition portion 13, and communicates the internal space 11 with the outside of the case 10. doing.

  2 and 3, the suction filter 17 is provided on the front wall 10 a of the case 10 and is placed on the horizontal portion 12 a of the first partition portion 12. The air compressed by the compressor body 20 is introduced into the compressor body 20 after removing foreign matters such as dust by the suction filter 17.

  Referring to FIG. 2, the internal space 11 of the case 10 includes a compression chamber (first chamber) 11 a, an inverter chamber (second chamber) 11 b, and a cooling chamber by a first partition 12 and a second partition 13. It is divided into (third chamber) 11c.

(Compression chamber)
The compression chamber 11 a is defined by the first partition portion 12, the second partition portion 13, and the case 10. Specifically, the compression chamber 11 a is surrounded by the front wall 10 a, the upper wall 10 c, the lower wall 10 d, the pair of side walls 10 e and 10 f, the first partition portion 12, and the second partition portion 13 in the internal space 11. Space. In the compression chamber 11a, a compressor body 20, a motor 21, and a sound insulating plate 18 are arranged. The compression chamber 11a is formed with a first intake passage 50 that fluidly connects the first intake port 14 and the cooling fan 40. Note that the sound insulating plate 18 is not necessarily provided.

  The compressor body 20 of the present embodiment is an oil-free screw compressor having a suction port 20a and a discharge port 20b. The suction port 20 a of the compressor body 20 is fluidly connected to the suction filter 17 by a pipe 22.

  The motor 21 is mechanically connected to the compressor body 20. When the compressor main body 20 is driven by the motor 21, it sucks air (gas) from the suction port 20a, compresses it, and discharges it from the discharge port 20b. Depending on the specifications, the package type compressor 1 may be a “two-stage compressor” in which another compressor body and a motor are arranged on the back side of the compressor body 20 in FIG. is there.

  The sound insulating plate 18 is disposed on the YZ plane and connects the upper wall 10c and the pair of side walls 10e and 10f. The sound insulating plate 18 is disposed between the first partition portion 12 and the second partition portion 13 in the X direction so as to face the first air inlet 14. The sound insulating plate 18 extends from the upper wall 10c toward the lower wall 10d. A sound absorbing material (not shown) is attached to both surfaces of the sound insulating plate 18.

(Inverter room)
The inverter chamber 11 b is defined by the first partition 12 and the case 10. Specifically, the inverter chamber 11 b is a space surrounded by the front wall 10 a, the lower wall 10 d, the pair of side walls 10 e and 10 f, and the first partition portion 12 in the internal space 11. In the inverter chamber 11b of the present embodiment, an inverter 30, an inverter cooling mechanism 31, and a cooling fan 32 are arranged. The inverter chamber 11 b communicates with the compression chamber 11 a through an opening 12 c provided in the first partition portion 12. In the inverter chamber 11b, a second intake passage 60 that fluidly connects the second intake port 15 and the first intake passage 50 is formed.

  The inverter 30 is electrically connected to the motor 21 (see the alternate long and short dash line), and controls the rotation speed of the motor 21. The inverter cooling mechanism 31 is a cooling device such as a heat radiating fin, and is attached to the inverter 30. The cooling fan 32 is an axial fan such as a propeller fan, and is disposed between the opening 12 c of the first partition 12 of the second intake passage 60 and the inverter cooling mechanism 31. The cooling fan 32 is driven by a fan motor (not shown), and causes the air in the inverter chamber 11b to flow from the second air inlet 15 to the opening 12c.

(Cooling room)
The cooling chamber 11 c is defined by the second partition 13 and the case 10. Specifically, the cooling chamber 11 c is a space surrounded by the rear wall 10 b, the upper wall 10 c, the lower wall 10 d, the pair of side walls 10 e and 10 f, and the second partition 13 in the internal space 11. A cooling fan 40 and a heat exchanger 41 are arranged in the cooling chamber 11c. The cooling chamber 11c communicates with the compression chamber 11a through an opening 13d provided in the second vertical portion 13b of the second partition 13, and communicates with the outside of the case 10 through an exhaust port 16 provided in the upper wall 10c. doing.

  The cooling fan 40 is disposed on the lower wall 10d side in the Z direction in the cooling chamber 11c, and is a centrifugal fan such as a turbo fan. The cooling fan 40 is driven by a fan motor (not shown) and causes the air in the cooling chamber 11 c to flow from the opening 13 d to the exhaust port 16.

  The heat exchanger 41 is disposed on the upper wall 10c side in the Z direction in the cooling chamber 11c, and is inclined toward the lower wall 10d side toward the rear wall 10b side. The heat exchanger 41 includes an inlet port 41a and an outlet port 41b. The inlet port 41 a is fluidly connected to the discharge port 20 b of the compressor body 20 by the pipe 23. Compressed air (compressed gas) discharged from the compressor body 20 passes through the pipe 23, is introduced from the inlet port 41a to the heat exchanger 41, and is led out from the outlet port 41b through the pipe 24. The air blown by the cooling fan 40 passes around the heat exchanger 41 from the lower wall 10d side to the upper wall 10c side. Therefore, in the heat exchanger 41, heat exchange is performed between the compressed air that passes through the inside of the heat exchanger 41 and the air that passes around the heat exchanger 41.

  The first intake flow path 50 fluidly connects the first intake port 14 and the cooling fan 40. The first intake flow path 50 of the present embodiment is fluidly connected to the first flow path 50a extending in the X direction (predetermined direction) from the first intake port 14, and the Z direction (predetermined). And a second flow path 50b extending in a direction intersecting the direction). The first intake flow path 50 includes a third flow path 50c that is fluidly connected to the second flow path 50b and extends in the X direction. The compressor body 20 and the motor 21 are disposed in the third flow path 50 c of the first intake flow path 50. The air flowing through the first intake passage 50 is sucked from the first intake port 14, collides with the sound insulation plate 18 provided facing the first intake port 14, flows along the sound insulation plate 18, and falls. . Thereafter, the air flowing through the first intake flow path 50 collides with the lower wall 10d and flows to the cooling fan 40 along the lower wall 10d.

  The second intake passage 60 fluidly connects the second intake port 15 and the first intake passage 50. The second intake flow path 60 of the present embodiment is fluidly connected to the fourth flow path 60a extending from the second intake port 15 in the X direction (predetermined direction) and the fourth flow path 60a, and is in the Z direction (predetermined direction). And a fifth flow path 60b extending in the direction intersecting the direction). An inverter cooling mechanism 31 and a cooling fan 32 are disposed in the fifth flow path 60 b of the second intake flow path 60. The air passing through the second intake passage 60 is sucked from the second intake port 15 and collides with the vertical portion 12b of the first partition portion 12 provided to face the second intake port 15, along the vertical portion 12b. Flow and rise. Thereafter, the air passing through the second intake passage 60 flows out from the opening 12c provided in the horizontal portion 12a of the first partition 12 into the compression chamber 11a. That is, the second intake flow channel 60 merges with the first intake flow channel 50 on the upper wall 10 c side with respect to the opening 12 c provided in the horizontal portion 12 a of the first partition portion 12.

(the flow of air)
Air used for cooling the compressor main body 20, the motor 21, and the heat exchanger 41 is sucked from the outside of the case 10 through the first intake port 14 by the cooling fan 40 and flows through the first intake passage 50. The compressor body 20 and the motor 21 are cooled. The air that has cooled the compressor body 20 and the motor 21 is blown by the cooling fan 40, cools the heat exchanger 41, and is exhausted from the exhaust port 16. Air used for cooling the inverter 30 is sucked from the outside of the case 10 through the second intake port 15 by the cooling fan 32 and flows through the second intake passage 60 to cool the inverter 30. The air that has cooled the inverter 30 flows through the first intake passage 50 to cool the compressor body 20 and the motor 21, and the air that has cooled the compressor body 20 and the motor 21 is cooled by the cooling fan 40. The air is blown to cool the heat exchanger 41 and exhausted from the exhaust port 16.

  According to the package type compressor 1 of the present embodiment, the compression chamber 11 a in which the compressor body 20 and the motor 21 are disposed is fluidly connected to the first intake port 14 by the first intake passage 50. The compression chamber 11a is fluidly connected to the second intake port 15 by the first intake passage 50 and the second intake passage 60. For this reason, noise generated in the compressor main body 20, the motor 21, and the cooling fan 40 is distributed to the first intake passage 50 and the second intake passage 60, and is transmitted from the first intake port 14 and the second intake port 15. It leaks out of the case 10. In addition, since the compression chamber 11a and the inverter chamber 11b are separated by the first partition 12, the noise generated by the compressor body 20, the motor 21, and the cooling fan 40 diffracts the first partition 12. , Leakage from the second air inlet 15 to the outside. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and are generated in the compressor body 20, the motor 21, and the cooling fan 40, and leak from the first intake port 14 or the second intake port 15. Noise can be reduced.

  Further, according to the package type compressor 1 of the present embodiment, the conduction direction of noise generated in the compressor main body 20, the motor 21, and the cooling fan 40 is limited by the first partition 12 and the sound insulating plate 18. Between the compressor body 20, the motor 21, the cooling fan 40 and the first air inlet 14, the first partition 12 and the sound insulating plate 18 are arranged. Noise generated in the compressor body 20, the motor 21, and the cooling fan 40 diffracts the first partition 12 and the sound insulating plate 18 and leaks out from the first air inlet 14. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and the noise that is generated in the compressor body 20, the motor 21, and the cooling fan 40 and leaks to the outside from the first air inlet 14 can be reduced. . Here, even when the sound insulation plate 18 is not provided in the compression chamber 11a, the first partition portion 12 can provide a noise attenuation effect, and thus is generated in the compressor body 20, the motor 21, and the cooling fan 40. In addition, noise leaking from the first air inlet 14 to the outside can be reduced.

  Further, according to the package type compressor 1 of the present embodiment, the conduction direction of noise generated in the compressor main body 20, the motor 21 and the cooling fan 40 is limited by the first partition 12. The first partition 12 is disposed between the compressor body 20, the motor 21, and the cooling fan 40 and the second air inlet 15, and is generated by the compressor body 20, the motor 21, and the cooling fan 40. Noise diffracts in the first partition 12 and leaks out from the second air inlet 15 to the outside. For this reason, the noise attenuation effect due to distance and the noise attenuation effect due to diffraction can be improved, and the noise that is generated in the compressor body 20, the motor 21, and the cooling fan 40 and leaks to the outside from the second intake port 15 can be reduced. .

  The cooling of the inverter 30 can be promoted by arranging the cooling fan 32 in the inverter chamber 11b. Further, since the cooling fan 32 is disposed in the second intake passage 60, the air flowing through the first intake passage 50 can be increased, and the cooling of the compressor body 20, the motor 21, and the heat exchanger 41 is promoted. it can.

  Hereinafter, a modification of the present embodiment will be described with reference to FIGS. 4 and 5.

  In the modification of FIG. 4, a splitter-type silencer is arranged in the first intake flow path 50. The splitter-type silencer of this modification includes a plurality of sound absorbing materials 51 arranged on the XY plane. The first intake channel 50 is divided by a plurality of sound absorbing materials 51 in parallel to the XY plane.

  Since the splitter-type silencer is disposed in the first intake flow path 50, noise leaking from the first intake port 14 and the second intake port 15 to the outside of the case 10 is reduced while suppressing pressure loss. it can. Further, since the splitter-type silencer guides the air flow in the first flow path 50a horizontally (parallel to the XY plane), the first flow path 50a and the second flow path 50b are substantially orthogonal to each other. For this reason, the splitter-type silencer can improve the noise attenuation effect due to diffraction in addition to the sound absorption effect by the sound absorbing material 51, and is therefore generated in the compressor body 20, the motor 21, and the cooling fan 40, and the first intake air Noise leaking from the mouth 14 can be reduced.

  In the modification of FIG. 5, a cell-type silencer is disposed in the first intake flow path 50. The cell-type silencer of the present modification includes a plurality of sound absorbing materials 51 arranged on the XY plane and a plurality of sound absorbing materials 52 arranged on the XZ plane. The first intake flow path 50 is divided into a lattice shape by a plurality of sound absorbing materials 51 and a plurality of sound absorbing materials 52.

  Since the cell-type silencer is arranged in the first intake flow path 50, noise leaking from the first intake port 14 and the second intake port 15 to the outside of the case 10 is reduced while suppressing pressure loss. it can. Moreover, since the cell-type silencer guides the air flow in the first flow path 50a horizontally (parallel to the XY plane), the first flow path 50a and the second flow path 50b are substantially orthogonal. For this reason, since the cell-type silencer can improve the noise attenuation effect due to diffraction in addition to the sound absorption effect by the sound absorbing material 51, it is generated in the compressor body 20, the motor 21, and the cooling fan 40, and the first intake air Noise leaking from the mouth 14 can be reduced.

  As mentioned above, although this invention was demonstrated by suitable embodiment, this invention is not limited to specific embodiment, A various change is in the range of the summary of this invention described in the claim. Is possible.

  For example, the compressor body 20 may be another type of compressor such as a reciprocating type or a centrifugal type.

  The sound insulating plate 18 may not be connected to the side walls 10e and 10f. That is, the sound insulating plate 18 may be connected only to the upper wall 10c.

DESCRIPTION OF SYMBOLS 1 Package type compressor 10 Case 10a Front wall 10b Rear wall 10c Upper wall 10d Lower wall 10e, 10f Side wall 11 Internal space 11a Compression chamber (1st chamber)
11b Inverter room (second room)
11c Cooling chamber (third chamber)
12 1st partition part 12a Horizontal part 12b Vertical part 12c Opening part 13 2nd partition part 13a 1st vertical part 13b 2nd vertical part 13c Inclination part 13d Opening part 14 1st intake port 15 2nd intake port 16 Exhaust port 17 Suction Filter 18 Sound insulation plate 20 Compressor body 20a Suction port 20b Discharge port 21 Motor 22, 23, 24 Piping 30 Inverter 31 Inverter cooling mechanism 32 Cooling fan 40 Cooling fan 41 Heat exchanger 41a Inlet port 41b Outlet port 50 First intake channel 50a 1st flow path 50b 2nd flow path 50c 3rd flow path 51,52 Sound absorbing material 60 2nd intake flow path 60a 4th flow path 60b 5th flow path

Claims (7)

A case provided with a first air inlet, a second air inlet, and an air outlet;
A compressor body for compressing gas;
A motor for driving the compressor body;
An inverter for controlling the rotational speed of the motor;
An inverter cooling mechanism for cooling the inverter;
A heat exchanger for cooling the compressed gas compressed by the compressor body;
A cooling fan for blowing air to the heat exchanger; a first partition provided inside the case;
A second partition provided inside the case and disposed apart from the first partition in a predetermined direction;
A first chamber defined by the first partition portion, the second partition portion, and the case, wherein the first intake port, the compressor body, and the motor are provided;
A second chamber defined by the first partition and the case, and provided with the second air inlet, the inverter, and the inverter cooling mechanism;
A third chamber defined by the second partition and the case and provided with the exhaust port and the heat exchanger;
A first intake flow path fluidly connecting the first intake port and the cooling fan inside the first chamber;
A package type compressor, comprising: a second intake passage that fluidly connects the second intake port and the first intake passage in the second chamber and in which the inverter cooling mechanism is disposed. The first intake channel is
A first flow path extending in the predetermined direction from the first air inlet;
A second flow path fluidly connected to the first flow path and extending in a direction intersecting the predetermined direction;
The package type compressor according to claim 1, further comprising a third flow path that is fluidly connected to the second flow path and extends in the predetermined direction. The second intake channel is
A fourth flow path extending in the predetermined direction from the second air inlet;
The package type compressor according to claim 1, further comprising: a fifth flow path that is fluidly connected to the fourth flow path and extends in a direction crossing the predetermined direction.   4. The package type compressor according to claim 1, wherein the second intake passage includes a cooling fan between the inverter cooling mechanism and the first intake passage. 5.   The package type compressor according to any one of claims 1 to 4, wherein a splitter-type silencer is disposed in the first intake passage.   The package type compressor according to any one of claims 1 to 4, wherein a cell-type silencer is disposed in the first intake passage.   The package compressor according to any one of claims 1 to 6, wherein the compressor body is an oil-free screw compressor.

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