TWI617739B - Air compression device - Google Patents

Abstract

The air compressing device (X1) of the present invention includes a casing (10) having a cooling air inflow port (10b) for allowing cooling air to flow into the inside, and a fan unit (14) having suction air for cooling The inflow port (10b) flows into the suction port (14a) of the cooling air in the casing (10), and sends the cooling air sucked from the suction port (14a) to the compressor unit (19); and the fan unit The suction port (14a) of (14) is disposed such that the cooling air in the casing (10) is retracted to the suction port (14a) and sucked.

Description

Air compression device

The present invention relates to an air compression device.

Heretofore, there has been known an air compressing device that is mounted on a vehicle or the like to generate compressed air for the vehicle. As such an air compressing device, Patent Document 1 discloses an air compressing device including a housing case and a compressor and a compression drive unit housed in the housing case. In the air compressing device of Patent Document 1, the compression driving portion is coupled to the compressor. The compressed air for the vehicle is generated by causing the compression drive unit to drive the compressor.

The air compressing device of Patent Document 1 further includes a cooling fan for cooling the compressor and the compression drive unit. The cooling fan is directly coupled to the compression drive unit to generate an air flow in a direction in which the compression drive unit and the compressor are arranged. Here, the storage case is provided with a filter portion that faces the cooling fan in the direction of the airflow generated by the cooling fan. In other words, in the air compressing device of Patent Document 1, the filter unit, the cooling fan, the compression drive unit, and the compressor are arranged in the direction of the airflow generated by the cooling fan. Further, the air that has flowed into the housing case through the filter unit is guided to the compression drive unit and the compressor so as to go straight by the cooling fan. Thereby, the compression drive unit and the compressor are cooled.

In the air compressing device of Patent Document 1, the air that has flowed into the housing by the filter unit is directed to the cooling fan and is guided to the compressor. Therefore, the cooling fan is sucked into the air that is straight into the housing case. Therefore, in the air compressing device of Patent Document 1, there is a possibility that the attenuation of the sound accompanying the flow of the air in the housing is not sufficiently obtained, and a large noise is generated in the cooling fan.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-226285

It is an object of the present invention to provide an air compression device that reduces noise.

An air compressing apparatus according to an aspect of the present invention includes: a casing having an inlet for allowing air to flow into the interior; and a fan unit having a suction port for sucking air flowing into the casing through the inlet, and The air sucked in from the suction port is sent to the compressor. The suction port of the fan unit is disposed such that air in the casing is retracted toward the suction port and sucked.

10‧‧‧ frame

10A‧‧‧Upper

10a‧‧‧ openings

10B‧‧‧ lower

10b‧‧‧Cooling air inlet

10C‧‧‧Intermediate

10c‧‧‧Export

10D‧‧‧ front

10d‧‧‧ Beam Department

10E‧‧‧Back

10e‧‧‧through hole

11‧‧‧ Panel unit

12‧‧‧ Panel components

13‧‧‧Acoustic components

13a‧‧‧The Peripheral Department

13b‧‧‧Districts Department

14‧‧‧Fan unit

14A‧‧‧1st fan unit

14a‧‧‧Inhalation

14B‧‧‧2nd fan unit

14b‧‧‧Send

14c‧‧‧ side

14d‧‧‧Installation Department

15‧‧‧Adapter unit

15A‧‧‧1st adapter

15a‧‧‧1st main face

15B‧‧‧2nd adapter

15b‧‧‧2nd main face

15c‧‧‧ first opening

15d‧‧‧2nd opening

15e‧‧‧through hole

16‧‧‧Filter panel

17‧‧‧Motor unit

17A‧‧‧1st motor

17B‧‧‧2nd motor

18‧‧‧control unit

19‧‧‧Compressor unit

19A‧‧‧1st compressor

19a‧‧‧Compressor body

19B‧‧‧2nd compressor

19b‧‧‧ drive pulley

19c‧‧‧ input shaft

20‧‧‧Guide the way

20a‧‧‧Inflow opening

20b‧‧‧1st outflow opening

20c‧‧‧2nd outflow opening

21‧‧‧Outflow piping department

21a‧‧‧1st outflow piping

21b‧‧‧2nd outflow piping

21c‧‧‧Management Department

21d‧‧‧Concurrent piping

22‧‧‧ after cooler

22a‧‧‧蜿蜒 piping

22b‧‧‧ protective cover

22c‧‧‧cooler fan

23‧‧‧Outflow guide

23a‧‧‧lateral side

23b‧‧‧ opposite department

23c‧‧‧Connected holes

24‧‧‧Acoustic components

25‧‧‧Filter components

26‧‧‧Inflow Guide

26A‧‧‧1st inflow guide

26B‧‧‧2nd inflow guide

27‧‧‧ Space Department

28‧‧‧Discharge fan

29‧‧‧Exporting Department

30‧‧‧Acoustic components

40‧‧‧External Pipeline Department

100‧‧‧ Railway vehicles

100a‧‧‧Floor Department

100b‧‧‧Upper wall

100c‧‧‧ Sidewall

100d‧‧‧ Sidewall

101‧‧‧rails

102‧‧‧ sleepers

121‧‧‧ Body Department

121a‧‧‧Compressed air inlet

122‧‧‧protrusion

122A‧‧‧1st projection

122a‧‧‧lateral side

122B‧‧‧2nd bulge

122b‧‧‧ opposite department

122c‧‧‧Part 1

122d‧‧‧2nd part

122e‧‧‧3rd part

122f‧‧‧4th part

161‧‧‧ Grille

161a‧‧‧Hinges

161b‧‧‧ rod lock

162‧‧‧Filter Department

171‧‧‧ Output shaft

172‧‧ ‧ motor body

172a‧‧‧Cooling fan

173‧‧‧ motor fan

174‧‧‧ drive pulley

200‧‧‧suspension components

261‧‧‧Compressor Maintenance Department

261a‧‧‧Fan opening

262‧‧‧Top Guide

263‧‧‧ lateral guidance

A1‧‧‧1st direction

B‧‧‧带

B1‧‧‧2nd direction

C1‧‧‧ vertical direction

F1‧‧‧ pathway

S1‧‧‧1st storage space

S2‧‧‧2nd storage space

S3‧‧‧1st concave space

S4‧‧‧2nd concave space

X1‧‧‧Air compression device

X2‧‧‧Air compression device

Fig. 1 is a schematic view showing a railway vehicle on which the air compressing device of the first embodiment is mounted, as seen from the side.

2 is a schematic view of the railway vehicle shown in FIG. 1 viewed from above, with guide rails, sleepers, and air compression devices respectively displayed on the 2-point chain line.

Fig. 3 is a perspective view showing a schematic configuration of an air compressing device according to the first embodiment.

Fig. 4 is a perspective view showing a schematic configuration of an air compressing device according to a first embodiment, in which a state in which a side portion of the casing is seen in a state in which the panel unit and the filter panel are removed from the casing.

Fig. 5 is a view showing the inside of the casing of the air compressing device of the first embodiment from the side.

FIG. 6 is a perspective view showing a schematic configuration of a motor housed in the second storage space S2 of the casing in the air compressing device of the first embodiment.

Fig. 7 is a view showing the inside of the casing of the air compressing device of the first embodiment, i.e., the inside of the see-through compression air filter and the guide path.

Fig. 8 is a view showing the panel unit of the air compressing device of the first embodiment as seen from the rear. Body map.

Fig. 9 is a perspective view showing a schematic configuration of an adapter of the panel unit of the first embodiment.

Fig. 10 is a cross-sectional view showing a schematic configuration of an air compressing apparatus according to a first embodiment, showing a flow of air for cooling a compressor unit.

Fig. 11 is a front perspective view showing a schematic configuration of an air compressing device according to a second embodiment.

Fig. 12 is a side perspective view showing a schematic configuration of an air compressing device according to a second embodiment, that is, a side view and an upper portion of a see-through frame.

Fig. 13 is a view showing the inside of the casing of the air compressing device of the second embodiment as seen from above.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, in the drawings referred to below, for the sake of convenience of explanation, only the main components among the constituent members of the air compressing devices X1 and X2 of the present embodiment are simplified. Therefore, the air compressing devices X1 and X2 of the present embodiment may include any constituent members not shown in the drawings referred to in the specification.

(First embodiment)

1 and 2 show a railway vehicle 100 on which the air compressing device X1 of the first embodiment is mounted. The compressed air generated by the air compressing device X1 is used to activate various air compressors such as a brake device or a door opening and closing device mounted on the railway vehicle 100. Further, the air compressing device X1 may not be mounted on the railway vehicle 100, and may be mounted on another vehicle such as a vehicle equipped with an air compressor.

The railway vehicle 100 has a floor portion 100a, an upper wall portion 100b located above the floor portion 100b, and a pair of side wall portions 100c and 100d extending in the vertical direction so as to connect the floor portion 100a and the upper wall portion 100b. Further, the railway vehicle 100 has a floor portion 100a attached thereto. The wheel and the door portion attached to the side wall portions 100c and 100d. The user of the railway vehicle 100 rides on the inside of the railway vehicle 100 through a door attached to the side wall portion 100c or the side wall portion 100d from the platform of the station. Further, as shown in FIG. 2, the railway vehicle 100 travels along the guide rail 101 on a rail formed by the sleeper 102 and the guide rail 101 extending in a direction orthogonal to the sleeper 102. The direction in which the sleeper 102 extends is referred to as a first direction A1, and the direction in which the guide rail 101 extends orthogonally to the first direction A1 is referred to as a second direction B1.

The air compressing device X1 is attached to the floor portion 100a of the railway vehicle 100 from below as shown in FIG. Moreover, as shown in FIG. 2, the air compressing device X1 is disposed on the side closer to the side wall portion 100c than the side wall portion 100d in the first direction A1.

Next, the air compressing device X1 will be specifically described with reference to Figs. 3 and 4 in addition to Figs. 1 and 2 . Fig. 3 is a perspective view showing a schematic configuration of an air compressing device X1. Fig. 4 is a view showing a state in which the panel unit 11 and the filter panel 16 described later are removed from the air compressing device X1 shown in Fig. 3. Fig. 5 is a view showing the air compressing device X1 viewed from the second direction B1, that is, a side view of the frame 10 which will be described later.

As shown in FIGS. 3 to 5 , the air compressing device X1 mainly includes a housing 10 , a motor unit 17 and a compressor unit 19 housed inside the housing 10 , and a controller unit 18 disposed outside the housing 10 . In the air compressing device X1, the compressor unit 19 is driven in conjunction with the motor unit 17 driven by the controller unit 18. Thereby, the air flowing into the compressor from the outside of the casing 10 is compressed.

The casing 10 houses various members of the air compressing device X1 such as the motor unit 17 and the compressor unit 19. In the first embodiment, the casing 10 is fixed to the floor portion 100a so as to be suspended from the lower side of the floor portion 100a of the railway vehicle 100 via the suspension member 200. Specifically, the casing 10 is formed to have the upper portion 10A and the lower portion 10B opposed to each other, the front portion 10D and the rear portion 10E facing each other, and the side portion on the one side and the side portion on the other side. Face shape. Further, the space surrounded by the upper portion 10A, the lower portion 10B, the front portion 10D, the rear portion 10E, the side portion of one side, and the side portion of the other side serves as a housing air compressing device X1. A storage space for various components.

In the first embodiment, the upper portion 10A of the air compressing device X1 faces the floor portion 100a, and the front portion 10D is located on the side wall portion 100c side in the first direction A1 and the rear portion 10E is located on the side wall portion 100d side (the center in the vehicle width direction). The posture of the side is mounted on the railway vehicle 100.

As shown in FIG. 4, the housing 10 has an intermediate portion 10C that is provided between the upper portion 10A and the lower portion 10B so as to divide the housing space inside the housing 10 into two. In the first embodiment, as shown in FIG. 4 and FIG. 5, the space formed between the upper portion 10A and the intermediate portion 10C in the housing space inside the casing 10 serves as the first storage space in which the compressor unit 19 is housed. In S1, the space formed between the intermediate portion 10C and the lower portion 10B serves as the second storage space S2 in which the compressor unit 19 is housed. In other words, in the first embodiment, the motor unit 17 and the compressor unit 19 are arranged to be shifted from each other in the vertical direction C1. Thereby, the occupied area in the horizontal direction of the air compressing device X1 can be reduced.

Further, in the first embodiment, the casing 10 is formed in a substantially hexahedral shape, but the invention is not limited thereto. The shape of the casing 10 is arbitrary, and can be appropriately changed according to the size, arrangement, and the like of various members housed inside the casing 10.

Further, there is no intermediate portion 10C. For example, the compressor unit 19 and the motor unit 17 may be arranged to be displaced in the vertical direction C1 by fixing the compressor unit 19 to the upper portion 10A and fixing the motor unit 17 to the lower portion 10B.

As shown in FIG. 4, the motor unit 17 is housed in the first housing space S1 inside the casing 10. The motor unit 17 has a first motor 17A and a second motor 17A. The first motor 17A and the second motor 17A are arranged side by side as shown in FIG. 6 . In the first embodiment, the direction in which the first motor 17A and the second motor 17A are arranged is a direction parallel to the second direction B1. The first motor 17A and the second motor 17A are formed to have the same structure, and are disposed in a symmetrical posture in the second direction B1. Hereinafter, the first motor 17A will be described.

The first motor 17A has an output shaft 171, a motor body 172, a motor fan 173, and a drive pulley 174.

The output shaft 171 protrudes from the motor body 172 toward the side of one side of the casing 10. A drive pulley 174 is mounted to the protruding output shaft 171. Thereby, the motor main body 172 and the drive pulley 174 are arranged in the axial direction of the output shaft 171. In the first embodiment, the first motor 17A is disposed such that the motor main body 172 and the drive pulley 174 are arranged in the second direction B1.

A plurality of cooling fans 172a are formed on the outer circumferential surface of the motor body 172. Each of the cooling fans 172a extends in the axial direction of the output shaft 171, and is disposed at intervals in the circumferential direction of the motor body 172.

The motor fan 173 generates an air flow for cooling the motor body 172. The motor fan 173 is mounted coaxially with the motor body 172 and the drive pulley 174. That is, the motor fan 173 is attached to the output shaft 171. The motor fan 173 is located on the opposite side of the drive pulley 174 across the motor body 172. In other words, in the first embodiment, the motor fan 173 is located closer to the second motor 17B than the drive pulley 174 in the second direction B1.

The motor fan 173 is driven by the rotation of the output shaft 171 that is driven by the motor body 172, and generates airflow in the second housing space S2 inside the casing 10. This airflow flows through the second storage space S2 in the second direction B1 by passing between the respective cooling fans 172a.

The controller unit 18 is attached to the rear portion 10E of the casing 10 outside the casing 10. The controller unit 18 has a box-shaped member and a controller housed inside the box-shaped member and controls driving of the motor unit 17. The motor body 172 of each of the motors 17A, 17B is driven by the controller unit 18. In addition, the controller unit 18 can accommodate various electronic components in addition to the controller that controls the driving of the motor unit 17.

As shown in FIG. 4, the compressor unit 19 is housed in the second storage space S2 inside the casing 10. Specifically, the compressor unit 19 is mounted on the intermediate portion 10C of the casing 10. The compressor unit 19 has a first compressor 19A and a second compressor 19B. The first compressor 19A and the second compressor 19B are arranged side by side. The first compressor 19A is disposed above the first motor 17A, and the second compressor 19B is disposed above the second motor 17A in the vertical direction C1. Therefore, in the first embodiment, the first compressor 19A and the second compressor 19B are arranged in the second direction B1.

The first compressor 19A and the second compressor 19B are formed to have the same structure. The first compressor 19A and the second compressor 19B are arranged in the second direction B1, and are arranged at a space in which they are symmetrical with each other so that the suction 各 of each of them is opposed to each other. Hereinafter, the first compressor 19A will be described.

The first compressor 19A has a compressor main body 19a, a drive pulley 19b, and an input shaft 19c.

The input shaft 19c protrudes from the compressor body 19a toward the side of one side of the casing 10. A drive pulley 19b is attached to the protruding input shaft 19c. Thereby, the compressor main body 19a and the drive pulley 19b are arranged in the axial direction of the input shaft 19c. In the first embodiment, the first compressor 19A is disposed such that the compressor main body 19a and the drive pulley 19b are arranged in the second direction B1. The drive pulley 19b of the first compressor 19A is disposed so as to overlap the drive pulley 174 of the first motor 17A in the vertical direction C1.

As shown in FIG. 4, the endless belt B is wound around the drive pulley 19b of the first compressor 19A and the drive pulley 174 of the first motor 17A. Specifically, in the intermediate portion 10C of the casing 10, a through hole that communicates with the first storage space S1 and the second storage space S2 on the side of the side of the casing 10 is formed. The continuous through hole is superposed on the drive pulleys 19b and 174 in the vertical direction C1. In addition, the belt B is disposed in the second storage space S2 from the first storage space S1 through the through hole, and is attached to each of the drive pulleys 19b and 174 in each of the storage spaces S1 and S2. In the compressor main body 19a of the first compressor 19A, the belt B is rotated around the drive pulleys 19b and 174 by the driving of the motor main body 172 of the first motor 17A, and the driving force is transmitted via the input shaft 19c. Thereby, the compressor main body 19a of the first compressor 19A generates compressed air.

As shown in FIGS. 5 and 7, the air compressing device X1 further includes a filter member 25 that allows air outside the casing 10 to flow inward, and a guide passage 20 that passes from the filter member 25 to the compressor body 19a. The air is guided out; the piping portion 21 is discharged, and the compressed air generated in the compressor body 19a flows out from the compressor body 19a; and the aftercooler 22 cools the compressed air flowing through the outflow pipe portion 21.

The guide path 20 is housed in the first housing space S1 inside the housing 10 . Specifically, as shown in FIG. 7, the guide path 20 is disposed between the first compressor 19A and the second compressor 19B, and extends from the front portion 10D side and the rear portion 10E side. In the first embodiment, the guide path 20 extends in the first direction A1. The guide passage 20 has an inflow opening 20a through which air flows into the inside, and a first outflow opening 20b and a second outflow opening 20c that allow the air to flow into the first and second compressors 19A and 19B.

The inflow opening 20a is formed in a direction opposite to the front portion 10D of the casing 10 in the guide passage 20. One end of the filter member 25 is fitted into the inflow opening 20a of the guide path 20 via a trim seal. Thereby, the air that has flowed into the filter member 25 from the outside of the casing 10 flows into the guide passage 20 through the inflow opening 20a.

The first outflow opening 20b is formed in a surface of the guide passage 20 that faces the first compressor 19A. The first outflow opening 20b is connected to the suction port of the first compressor 19A by a connecting pipe with a symbol omitted. Thereby, the air that has flowed into the guide passage 20 flows out of the guide passage 20 through the first outflow opening 20b, and flows into the first compressor 19A.

The second outflow opening 20c is formed in a surface of the guide passage 20 that faces the second compressor 19B. The second outflow opening 20c is connected to the suction port of the second compressor 19B by a connecting pipe with a symbol omitted. Thereby, the air that has flowed into the guide passage 20 flows out of the guide passage 20 through the first outflow opening 20b, and flows into the second compressor 19B.

The outflow pipe portion 21 has a first outflow pipe 21a connected to the compressor main body 19a of the first compressor 19A, a second outflow pipe 21b connected to the compressor main body 19a of the second compressor 19B, and a manifold portion 21c. The first outflow piping 21a and the second outflow piping 21b are connected, and the joining piping 21d is provided for the compressed air that flows in the manifold portion 21c to flow.

As shown in FIG. 4, the first outflow pipe 21a is connected to the surface of the first compressor 19A that faces the second compressor 19B, extends toward the front portion 10D, and is bent upward in the vicinity of the front portion 10D. Folded, extending to the upper portion 10A. The air that has flowed into the compressor body 19a of the first compressor 19A through the guide path 20 is compressed in the compressor body 19a, and is passed through 1 The outflow pipe 21a flows out.

As shown in FIG. 4, the second outflow pipe 21b is connected to the surface of the second compressor 19B that faces the first compressor 19A, extends toward the front portion 10D, and is bent upward in the vicinity of the front portion 10D. Folded, extending to the upper portion 10A. The air that has flowed into the compressor main body 19a of the second compressor 19B through the guide passage 20 is compressed in the compressor main body 19a, and flows out through the second outflow pipe 21b.

The manifold portion 21c is attached to the upper portion 10A of the casing 10 as shown in Figs. 4 and 5 . Specifically, the manifold portion 21c is housed in the first housing space S1 inside the housing 10, and is attached to the front portion 10D side between the first compressor 19A and the second compressor 19B in the upper portion 10A. The first and second outflow pipes 21a and 21b are connected to the manifold portion 21c, whereby the compressed air flowing through the first outflow pipe 21a in the manifold portion 21c merges with the compressed air flowing through the second outflow pipe 21b.

As shown in FIG. 5, the merging pipe 21d is connected to the manifold portion 21c, and extends from the front portion 10D side of the casing 10 toward the rear portion 10E along the upper portion 10A of the casing 10. The compressed air that has merged in the manifold portion 21c flows into the merging pipe 21d, and flows from the front portion 10D side of the casing 10 toward the rear portion 10E side.

As shown in FIG. 5, in the portion of the rear portion 10E of the casing 10 that surrounds the first storage space S1, an outlet 10c that communicates with the outside of the first storage space S1 and the casing 10 is formed. Specifically, the outflow port 10c is formed in a portion of the rear portion 10E on the upper portion 10A side. Further, outside the casing 10, an outer duct portion 40 is attached to the rear portion 10E so as to cover the outflow port 10c. The merging pipe 21d extends from the front portion 10D side toward the rear portion 10E side, and extends into the outer duct portion 40 provided outside the casing 10 through the outflow port 10c formed in the rear portion 10E.

The aftercooler 22 is attached to the outside of the casing 10 and attached to the rear portion 10E of the casing 10. The aftercooler 22 has a weir pipe 22a, a protective cover 22b that houses the weir pipe 22a, and a cooler fan 22c that sends air outside the casing 10 into the boot 22b.

The protective cover 22b is attached to the outside of the casing 10, and is disposed behind and above the outer duct portion 40 of the rear portion 10E. The weir pipe 22a extends in the second direction B1蜿蜒 on the inside of the protective cover 22b. The piping is connected to the weir pipe 22a by the joining pipe 21d attached to the outer pipe portion 40 of the rear portion 10E. The compressed air flowing through the joining pipe 21d flows into the weir pipe 22a. The cooler fan 22c is disposed between the rear portion 10E and the protective cover 22b below the outer duct portion 40. The cooler fan 22c sucks the air outside the casing 10 and sends it out to the inside of the protective cover 22b.

As shown in FIGS. 3 and 4, the air compressing device X1 further includes a filter panel 16 that can be opened and closed to be formed in the cooling air inflow port 10b of the front portion 10D of the casing 10.

The cooling air inflow port 10b is formed to cool various members inside the casing 10 by allowing air to flow into the inside of the casing 10. The cooling air inflow port 10b is formed in the front portion 10D of the casing 10. Specifically, the front portion 10D of the casing 10 has a beam portion 10d that fixes the intermediate portion 10C as shown in FIG. The beam portion 10d extends in parallel with the upper portion 10A and the lower portion 10B. The cooling air inflow port 10b is formed between the beam portion 10d and the lower portion 10B, and is formed in a substantially rectangular shape. Thereby, the cooling air inflow port 10b communicates with the outside of the casing 10 and the second storage space S2 inside the casing 10.

The filter panel 16 is attached to the front portion 10D of the casing 10 so as to cover the cooling air inflow port 10b. As shown in FIGS. 3 and 5, the filter panel 16 has a grille 161 in which a plurality of elongated plate-like members are spaced apart from each other, and a filter portion 162 attached to the rear surface of the grille 161. The grille 161 is attached to the front portion 10D of the casing 10 such that the filter portion 162 is fitted to the cooling air inflow port 10b.

A hinge 161a and a lever lock 161b are attached to the grill 161. The hinge 161a fixes the upper end portion of the grating 161 in the vertical direction C1 with respect to the front portion 10D of the casing 10. The lever lock 161b is detachably fixed to the lower end portion of the grill 161 in the vertical direction C1 with respect to the front portion 10D of the casing 10. Therefore, in the air compressing device X1, the filter panel 16 is rotated by the hinge 161a as the center of rotation by the open lever lock 161b, and the cooling space can be turned on. Airflow inlet 10b.

The air passing through the grill 161 is dedusted in the filter portion 162. Further, the air after the dust removal flows into the second storage space S2 inside the casing 10 through the cooling air inflow port 10b.

Here, as shown in FIGS. 4 and 5, a through hole 10e penetrating the intermediate portion 10C in the vertical direction C1 is formed on the front portion 10D side of the intermediate portion 10C. The through hole 10e is formed on the side of the front portion 10D from the compressor unit 19 and the motor unit 17. In the first embodiment, the through hole 10e is formed in a rectangular shape extending from the front side of the first motor 17A and the front side of the second motor 17B. The through hole 10e communicates with the first storage space S1 and the second storage space S2. Therefore, the air that has flowed into the second storage space S2 inside the casing 10 through the cooling air inflow port 10b can move to the first storage space S1 through the through hole 10e before reaching the motor unit 17.

In the first embodiment, a through hole through which the belt B passes is formed in a portion on the side of the side portion of the casing 10 in the intermediate portion 10C. Therefore, the air flowing into the second storage space S2 can also pass through the through hole. The first storage space S1 moves.

As shown in FIGS. 3 and 4, the air compressing device X1 further includes a panel unit 11 that can be opened and closed and formed in the opening 10a of the front portion 10D of the casing 10.

The opening 10a is formed to maintain the compressor unit 19 or the like housed inside the casing 10. The opening 10a is formed in the front portion 10D of the casing 10. Specifically, the opening 10a is formed between the beam portion 10d and the upper portion 10A, and is formed in a substantially rectangular shape. Thereby, the opening 10a communicates with the outside of the casing 10 and the first storage space S1 inside the casing 10. In the first embodiment, the opening 10a is located above the cooling air inflow port 10b.

The panel unit 11 is attached to the front portion 10D of the casing 10 so as to cover the opening 10a. The panel unit 11 has a panel member 12, a sound absorbing member 13 attached to one portion of the panel member 12, a fan unit 14 fixed to the panel member 12, and a transfer fixed to the fan unit 14 as shown in FIG. Unit 15.

The panel member 12 is provided to open and close the opening 10a. The panel member 12 includes a main body portion 121 and a protruding portion 122 that protrudes from the main body portion 121 toward the outer side of the casing 10 .

The body portion 121 is formed in a flat shape along the front portion 10D of the casing 10. The main body portion 121 is attached to the front portion 10D of the casing 10 so as to cover the opening 10a with the entire panel member 12. Thereby, the opening 10a is in a state of being closed by the panel member 12. In the first embodiment, the main body portion 121 is bolted to the front portion 10D so as to open the opening 10a. Therefore, in the air compressing device X1, the opening 10a can be opened by removing the bolt of the front portion 121 of the panel member 12 and the front portion 10D of the frame 10, and removing the panel unit 11 from the frame 10.

Further, in the first embodiment, the main body portion 121 of the panel member 12 is fixed to the front portion 10D by bolts, but the invention is not limited thereto. The main body portion 121 of the panel member 12 may be fixed to the front portion 10D of the casing 10 by a hinge portion and a lever lock, for example, similarly to the filter panel 16. In this case, the panel member 12 can open and close the opening 10a by opening or closing the lever lock.

A compression air inflow port 121a penetrating the main body portion 121 is formed in the main body portion 121. The compression air inflow port 121a is for allowing the air outside the casing 10 to flow into the guide path 20 inside the casing 10. The compression air inflow port 121a is formed at a position opposed to the inflow opening 20a of the guide path 20. In the first embodiment, the compression air inflow port 121a is disposed in parallel with the inflow opening 20a of the guide path 20 in the first direction A1. Further, the filter member 25 is detachably attached to the main body portion 121 so as to be fitted into the compression air inflow port 121a. In this state, one end of the filter member 25 is fitted into the inflow opening 20a of the guide path 20.

The projection 122 is formed by recessing one of the back surfaces of the panel member 12 toward the surface side of the panel member 12. That is, the protruding portion 122 is integrally formed with the body portion 121 in the panel member 12. In the first embodiment, the protruding portion 122 is recessed toward the outside of the casing 10 in the first direction A1. As shown in FIG. 3, the protruding portion 122 has a facing portion 122b and a side portion 122a.

The opposing portion 122b is a portion opposed to the fan device unit 14 to be described later in a direction orthogonal to the front portion 10D (orthogonal direction). The opposing portion 122b is located further forward than the body portion 121. Specifically, the opposing portion 122b is located at the compressor via the body portion 121 in the orthogonal direction The opposite side of unit 19.

The side portion 122a is a portion that extends in the orthogonal direction so as to connect the opposing portion 122b and the body portion 121. The side portion 122a is opposed to the side surface 14c of the fan unit 14. The side portion 122a includes a first portion 122c extending in a horizontal direction above the fan unit 14 and second and third portions 122d and 122e connected to both sides of the fan unit 14 in a vertical direction. And extending the fourth portion 122f in a horizontal direction below the fan unit 14. The side portion 122a is formed in a closed loop shape that surrounds the fan unit 14 in the circumferential direction by continuously connecting the respective portions 122c to 122f. In the first embodiment, the intermediate portion of the fourth portion 122f is recessed toward the first portion 122c so as to avoid the compression air inlet 121a formed in the main body portion 121.

The protruding portion 122 has a first protruding portion 122A and a second protruding portion 122B. The first projecting portion 122A overlaps with the first compressor 19A in a direction orthogonal to the front portion 10D. The second protruding portion 122B overlaps the second compressor 19B in the orthogonal direction orthogonal to the front portion 10D. The first protruding portion 122A and the second protruding portion 122B are arranged in alignment with the compression air inflow port 121a. In the first embodiment, the space surrounded by the opposing portion 122b and the side portion 122a of the first protruding portion 122A is referred to as a first concave space S3, and the opposing portion 122b of the second protruding portion 122B and The space surrounded by the side portion 122a is referred to as a second concave space S4. In the first embodiment, the first protruding portion 122A and the second protruding portion 122B are connected to each other above the compression air inflow port 121a in the vertical direction C1. That is, the first concave space S3 and the second concave space S4 are connected to each other.

In the first embodiment, the first protruding portion 122A and the second protruding portion 122B are connected to each other. However, the first protruding portion 122A and the second protruding portion 122B may be independent of each other. In this case, the first concave space S3 and the second concave space S4 are spaces independent of each other.

The fan unit 14 sends the air inside the casing 10 to the compressor unit 19. The fan unit 14 is positioned to be displaced from the cooling air inflow port 10b in the vertical direction C1. Specifically, the fan unit 14 is located above the cooling air inflow port 10b. square. The fan unit 14 has a part of the first fan unit 14A disposed in the first concave space S3 and a second fan unit 14B partially disposed in the second concave space S4. In the first embodiment, the first fan unit 14A and the second fan unit 14B are configured by two axial fans that are disposed so as to overlap each other in the orthogonal direction orthogonal to the front portion 10D. Further, the number of the axial flow fans constituting each of the first fan device 14A and the second fan device 14B may be one or three or more.

The first fan device 14A and the second fan device 14B are formed to have the same structure. Hereinafter, the first fan device 14A will be described.

The first fan unit 14A has a suction port 14a for sucking air flowing into the inside of the casing 10 from the cooling air inflow port 10b, a delivery port 14b for sending air to the opposite side of the suction port 14a, and a first fan for sucking the air. The device 14A is attached to the mounting portion 14d of the panel member 12. The first fan unit 14A has a configuration in which a vane wheel is disposed inside the tubular side surface 14c. Further, the suction port 14a is formed by an opening on one end side of the cylindrical side surface 14c, and the delivery port 14b is formed by an opening on the other end side of the side surface 14c. In the first embodiment, the suction port 14a and the delivery port 14b are formed in a substantially circular shape.

As shown in FIG. 5, the first fan device 14A is disposed such that the suction port 14a is opposed to the opposing portion 122b of the first protruding portion 122A, and the delivery port 14b is oriented toward the first compressor 19A side. . Specifically, the first fan device 14A is disposed so as to straddle the first housing space S1 from the first recessed space S3 so that the suction port 14a is located in the first recessed space S3. More specifically, the end portion of the side surface 14c on the side where the suction port 14a is provided in the first fan device 14A is disposed closer to the opposite portion 122b at the end portion of the side portion of the first compressor portion 19a on the side of the first compressor 19A. side. In addition, the first fan unit 14A is disposed such that the axial center of the axial fan constituting the first fan unit 14A is displaced from the outlet 10c formed in the rear portion 10E of the casing 10.

The mounting portion 14d of the first fan device 14A extends from the side surface 14c of the first fan device 14A in the radial direction of the first fan device 14A. Further, the attachment portion 14d of the first fan device 14A is attached to the panel member 12 via a bolt. Thereby, the first fan device 14A uses the first fan One of the side faces 14c of the device 14A is attached to the panel member 12 so as to face each other with respect to the side portions 122a of the first projecting portions 122A. Further, the first fan device 14A may be fixed to the panel member 12 so as to be entirely located in the first concave space S3.

The second fan device 14B is omitted in the detailed description. However, similarly to the first fan device 14A, one of the side faces 14c of the second fan device 14B is spaced apart from the side portion 122a of the second projecting portion 122B. The opposite direction is fixed to the panel member 12.

The adapter unit 15 guides the air sent from the delivery port 14b in the fan unit 14 to the compressor unit 19. The adapter unit 15 has a first adapter 15A fixed to the delivery port 14b side of the first fan device 14A and a second adapter 15B fixed to the delivery port 14b of the second fan device 14B. The first adapter 15A is disposed between the delivery port 14b of the first fan device 14A and the first compressor 19A. The second adapter 15B is disposed between the delivery port of the second fan device 14B and the second compressor 19B. The first adapter 15A and the second adapter 15B are formed in the same configuration as each other. Hereinafter, the first adapter 15A will be described.

As shown in FIG. 9, the first adapter 15A is formed into a rectangular plate-like member. The first adapter 15A has one side main surface (first main surface) 15a opposed to the delivery port 14b of the first fan unit 14A, and the other main surface opposite to the first compressor 19A (second Main surface) 15b. One side opening (first opening) 15c having a circular shape corresponding to the shape of the delivery port 14b is formed in the one main surface 15a. The other side main surface 15b is formed with a rectangular-shaped other side opening (second opening) 15d corresponding to the rectangular outer shape of the first compressor 19A in the first direction A1. Further, the one side opening 15c and the other side opening 15d communicate with each other, whereby the through hole 15e penetrating the first adapter 15A is formed. In other words, the through hole 15e of the first adapter 15A is formed in a shape corresponding to the shape of the delivery port 14b on the first fan device 14A side, and is formed on the first compressor 19A side and the first compressor 19A. The outer shape corresponds to the shape.

Alternatively, the adapter unit 15 may be omitted, and air may be directly sent from the delivery port 14b of the fan unit 14 to the compressor body 19a of the compressor unit 19.

The sound absorbing member 13 is disposed in the first and second concave spaces S3 and S4, and is lowered by the first The noise of the air compressing device X1 caused by the air in the second concave spaces S3, S4. As shown in FIGS. 8 and 10, the sound absorbing member 13 is attached to the protruding portion 122. Specifically, the sound absorbing member 13 has a peripheral edge portion 13a which is provided along the inner surface of the side portion 122a of the convex portion 122 and the inner surface of the opposing portion 122b, and a partitioning portion 13b which is defined by the first concave portion The space S3 and the second concave space S4 are disposed in a space above the compression air inflow port 121a. The peripheral edge portion 13a and the segmented portion 13b are disposed apart from the fan device unit 14 at intervals.

In the first embodiment, the peripheral edge portion 13a is provided across the entire first portion 122c, the second portion 122d, the third portion 122e, the fourth portion 122f, and the opposing portion 122b of the side portion 122a. Further, the peripheral edge portion 13a may be provided only in one of the side portion 122a and the opposing portion 122b. For example, the peripheral edge portion 13a may be provided only in the opposing portion 122b. Further, the peripheral edge portion 13a may be provided only in the first portion 122c of the side portion 122a.

As shown in FIG. 5, the air compressing device X1 further includes an outflow guide portion 23 that supplies air sent from the delivery port 14b of the fan device unit 14 to the compressor unit 19 so as to be formed in the rear portion 10E of the casing 10. The outlet 10c is turned to guide.

The outflow guide portion 23 is disposed behind the compressor unit 19 in the first housing space S1 inside the casing 10. Specifically, the outflow guide 23 is located on the opposite side of the fan unit 14 with the compressor unit 19 interposed therebetween. In the first embodiment, the outflow guide portion 23 is attached to the rear portion 10E in the first storage space S1. The outflow guide portion 23 has a facing portion 23b facing the compressor unit 19 in the axial direction of the axial fan constituting the fan unit 14, and a side extending from the edge of the opposing portion 23b toward the compressor unit 19. Part 23a.

In the opposing portion 23b, a communication hole 23c that communicates with the outflow port 10c formed on the outer surface of the casing 10 is formed. The communication hole 23c is located at a deviation from the axis of the axial fan constituting the fan unit 14. The merging pipe 21d that flows out of the pipe portion 21 extends in the outflow guide portion 23 along the upper portion 10A, and further extends to the outer pipe portion 40 outside the casing 10 through the communication hole 23c and the outflow port 10c.

A sound absorbing member 24 is provided on the inner surface of the outflow guide portion 23. In this embodiment The sound absorbing member 24 is provided across the entire side portion 23a and the entire opposing portion 23b except the communication hole 23c.

In the air compressing device X1 of the first embodiment described above, the compressor unit 19 is cooled by the air flowing inside the casing 10 as shown in FIG. Hereinafter, the flow of the air that cools the first compressor 19A in the compressor unit 19 will be described with reference to FIG. Further, the second compressor 19B is also cooled in the same manner as the first compressor 19A.

In the air compressing device X1, air is introduced into the second storage space S2 inside the casing 10 from the outside of the casing 10 through the cooling air inflow port 10b. One of the air that has flowed into the second storage space S2 is raised to the first storage space S1 through the through hole 10e of the intermediate portion 10C in accordance with the suction of the suction port 14a of the first fan device 14A before reaching the motor unit 17. The air that has risen in the first storage space S1 flows into the passage F1 formed between the side surface 14c of the first fan unit 14A and the sound absorbing member 13 provided at the fourth portion 122f of the side portion 122a. The air that has flowed into the passage F1 flows toward the opposing portion 122b, turns in the sound absorbing member 13 provided in the opposing portion 122b, and wraps around the suction port 14a, and is sucked into the suction port 14a.

As described above, in the air compressing device X1, the suction port 14a of the fan unit 14 is disposed such that the air inside the casing 10 is retracted toward the suction port 14a and sucked. Specifically, the opposing portion 122b of the protruding portion 122 is disposed to face the side surface 14c such that the air inside the casing 10 is rewound from the side surface 14c of the fan unit 14 to the suction port 14a. In other words, the protruding portion 122 of the first embodiment corresponds to an inflow guide that retracts the air inside the casing 10 to the suction port 14a. Further, the inner surface of the protruding portion 122 serves as an inflow guiding surface that actually guides the flow of air.

The air sent from the delivery port 14b of the first fan device 14A to the first compressor 19A through the through hole 15e of the first adapter 15A flows in the axial direction of the axial fan constituting the first fan device 14A, and the cooling is performed. The first compressor 19A. And after cooling the first compressor 19A The air flows in the axial direction of the axial fan constituting the first fan device 14A toward the rear of the first compressor 19A, and is steered by the sound absorbing member 24 provided in the opposing portion 23b of the outflow guide portion 23. Further, the steered air is restricted from moving in the vertical direction C1 by the side portion 23a of the outflow guiding portion 23, and is guided to the communication hole 23c formed in the peripheral portion of the opposing portion 23b. The air flowing through the communication hole 23c and the outflow port 10c is ejected from the compressor to cool the compressed air flowing through the merging pipe 21d.

The air guided to the communication hole 23c flows into the inside of the outer duct portion 40 attached to the rear portion 10E of the casing 10 through the communication hole 23c and the outflow port 10c. This air flows into the protective cover 22b of the cooler 22 after being disposed behind the outer duct portion 40. As a result, the air flowing out from the inside of the casing 10 is ejected from the weir pipe 22a in the protective cover 22b, and the compressed air flowing through the weir pipe 22a is cooled. Further, the sputum pipe 22a is also cooled by the cooler fan 22c located below the outer duct portion 40.

As described above, in the air compressing device X1 of the first embodiment, the air that has flowed into the inside of the casing 10 through the cooling air inflow port 10b is sucked into the suction port 14a of the fan unit 14 to the suction. The port 14a is then sent to the compressor unit 19. In the air compressing device X1 of the first embodiment, the air is sucked into the casing 10 by the suction of the air from the cooling air inlet 10b by the suction port 14a of the fan unit 14 . In the air compressing device X1 of the first embodiment, the flow distance of the air from the cooling air inflow port 10b to the suction port 14a can be made longer, and the air and the casing 10 can be turned when the flow direction of the air is turned. There are more collisions between the various components. Thereby, the noise generated in the casing 10 of the air compressing device X1 can be reduced.

Further, in the air compressing device X1 of the first embodiment, the projecting portion 122 as the inflow guide portion is disposed to face the side surface 14c of the fan device unit 14. Therefore, the air inside the casing 10 can be introduced into the suction port 14a via the passage F1 between the side surface 14c of the fan unit 14 and the projection 122. Thereby, the air inside the casing 10 can be surely rewound toward the suction port 14a.

Further, in the air compressing device X1 of the first embodiment, the air flowing between the side surface 14c of the fan unit 14 and the side portion 122a of the protruding portion 122 is formed by the opposing portion 23b of the protruding portion 122. It is turned and guided to the suction port 14a. Thereby, the flow direction of the air sucked into the suction port 14a of the fan unit 14 can be surely steered.

Further, in the air compressing device X1 of the first embodiment, the panel member 12 that closes the opening 10a formed to maintain the inside of the casing 10 is formed with a projection 122 as an inflow guide. Therefore, it is not necessary to separately provide the inflow guide portion inside the casing 10.

Further, in the air compressing device X1 of the first embodiment, when the panel member 12 is actuated to open the opening 10a formed in the casing 10, the convex portion 122 of the panel member 12 is attached to the air member compression device X1. The fan unit 14 of the panel member 12 is also actuated simultaneously. In particular, in the air compressing device X1 of the first embodiment, the adapter unit 15 is attached to the fan unit 14, so that the adapter unit 15 is also actuated simultaneously when the panel member 12 is actuated. Therefore, by opening the panel member 12 so as to open the opening 10a of the casing 10, the compressor unit 19 inside the casing 10 is exposed through the opening 10a. Therefore, the compressor unit 19 can be easily maintained.

Further, in the air compressing device X1 of the first embodiment, the sound absorbing member 13 attached to the protruding portion 122 can reduce the noise caused by the air flowing along the protruding portion 122.

Further, in the air compressing device X1 of the first embodiment, the sound absorbing member 13 is provided between the upper portion 10A of the casing 10 and the fan unit 14. Therefore, it is possible to efficiently reduce the noise generated from the floor portion 100a to the person riding on the inside of the railway vehicle in the state of being attached to the floor portion 100a of the railway vehicle 100.

Further, in the air compressing device X1 of the first embodiment, when the sound absorbing member 13 attached to the opposing portion 122b is attached to the platform on the side of the side wall portion 100c of the railway vehicle 100, it is located at the platform and the fan unit 14 between. Therefore, it is possible to efficiently reduce the number of people on the platform. The noise of the staff.

Further, in the air compressing device X1 of the first embodiment, one of the through holes 15e of the through hole 15e of the adapter unit 15 is formed in a shape corresponding to the shape of the delivery port 14b, and the other of the through holes 15e The side opening 15d is formed in a shape corresponding to the shape of the compressor body 19a. Therefore, even if the air inside the casing 10 is sucked by the suction port 14a so as to be circulated to the suction port 14a, the air introduced into the fan unit 14 is lost, and the air sent from the outlet 14b can be made high. The efficiency is supplied to the compressor unit 19. Thereby, noise can be reduced and the compressor unit 19 can be sufficiently cooled.

Further, in the air compressing device X1 of the first embodiment, the cooling air inflow port 10b and the fan device unit 14 are arranged to be shifted in the vertical direction C1. Therefore, the flow direction of the air flowing into the inside of the casing 10 from the cooling air inflow port 10b is steered at least once in the vertical direction C1. Specifically, the air that has flowed into the second storage space S2 inside the casing 10 from the air inlet 10b for cooling is turned toward the first storage space S1 in accordance with the suction of the suction port 14a of the fan unit 14. . Therefore, in the air compressing device X1 of the first embodiment, the area of the casing 10 in the horizontal direction can be suppressed as compared with the case where the noise is reduced by turning the flow direction of the air which is repeated only in the horizontal direction. It is smaller. In other words, in the air compressing device X1 of the first embodiment, the installation area of the air compressing device X1 mounted on the railway vehicle 100 can be kept small, and noise can be sufficiently reduced.

Further, in the air compressing device X1, since the motor unit 17 has the motor fan 173 that is coaxial with the motor body 172, it is not necessary to separately provide a fan for ventilation in the casing 10, and it is possible to suppress the enlargement of the casing 10. .

Further, in the air compressing device X1 of the first embodiment, the airflow generated by the motor fan 173 flows in the horizontal direction by passing between the respective cooling fans 172a. In other words, in the air compressing device X1 of the first embodiment, the airflow in the vertical direction C1 is generated by the suction of the suction port 14a of the fan unit 14, and the motor fan 173 is driven to be orthogonal to the vertical direction C1. Horizontal airflow. Therefore, the air charge can be suppressed The interior of the frame 10 is full.

Further, in the air compressing device X1 of the first embodiment, the air taken in from the suction port 14a of the fan unit 14 is sent out from the delivery port 14b of the fan unit 14 and the compressor unit 19 is cooled. The outflow guide portion 23 is turned, and flows out from the outside of the casing 10 from the outflow port 10c. In other words, in the air compressing device X1 of the first embodiment, in addition to the flow direction of the air before being sucked into the fan unit 14, the flow direction of the air after cooling the compressor unit 19 can be steered, whereby Reduce noise.

In the air compressing device X1 of the first embodiment, the merging pipe 21d of the outflow pipe portion 21 passes through the outflow guide portion 23, and extends to the outside of the casing 10 through the communication hole 23c and the outflow port 10c. Therefore, the compressed air flowing through the merging pipe 21d is cooled by the air discharged from the outflow port 10c to the outside of the casing 10 by the outflow guide portion 23 before being guided to the aftercooler 22.

Further, in the first embodiment, the panel member 12 has the main body portion 121 and the protruding portion 122 protruding from the main body portion 121, but the present invention is not limited thereto. For example, the panel member 12 may be formed in a flat shape as a whole, and the outer surface of the panel member 12 may be flat, and one of the back surfaces may be recessed toward the front side, thereby forming the first and second sides. Concave spaces S3, S4. In this case, the back surface of the panel member 12 forming the first and second concave spaces S3 and S4 serves as an inflow guide surface for guiding the flow of the air guided to the suction port 14a, and the entire panel member 12 serves as an inflow guide.

Further, in the first embodiment, the projection portion 122 as the inflow guide portion for guiding the flow of the air guided to the suction port 14a is formed in the panel member 12. However, the present invention is not limited thereto. For example, when the panel member 12 does not form a portion that functions as an inflow guide portion, the inflow guide portion that is independent from the panel member 12 may be disposed inside the casing 10.

Further, in the first embodiment, the fan unit 14 is attached to the panel member 12, and the panel unit 11 is configured to open and close the opening 10a as a whole, but the invention is not limited thereto. The fan unit 14 may not be attached to the panel member 12, and may be disposed inside the casing 10, for example. another, The same applies to the adapter unit 15.

Further, in the first embodiment, the compressor unit 19 has two compressors of the first compressor 19A and the second compressor 19B, but the invention is not limited thereto. The compressor unit 19 may have one or more compressors, or three or more. In this case, depending on the number of compressors that the compressor unit 19 has, the number of motors that the motor unit 17 has or the number of fan units that the fan unit 14 has is also appropriately changed.

Further, in the first embodiment, the casing 10 has the intermediate portion 10C, and the first storage space S1 and the second storage space S2 are formed via the intermediate portion 10C, whereby the motor unit 17 and the compressor unit 19 are vertically oriented. C1 is configured to be staggered, but is not limited to this. For example, the motor unit 17 and the compressor unit 19 may be arranged in such a manner as to be arranged in a plane direction orthogonal to the vertical direction C1.

(Second embodiment)

In the second embodiment shown below, the air compressing device X2 in which the motor unit 17 and the compressor unit 19 are arranged in the planar direction will be described.

Fig. 11 to Fig. 13 show an air compressing device X2 according to the second embodiment. Fig. 11 is a perspective view of the air compressing device X2 viewed from the front portion 10D side of the casing 10. Fig. 12 is a perspective view of the air compressing device X2 viewed from the side of the side of the casing 10, that is, a view through which the side portion and the upper portion 10A of the casing 10 are transmitted. Fig. 13 is a view showing the inside of the air compressing device X2 from the upper portion 10A side of the casing 10, that is, only the fan unit 14 and the inflow guiding portion 26 which will be described later show a specific cross section. In the components of the air compressing device X2, the same components as those of the air compressing device X1 are denoted by the same reference numerals as in the first embodiment.

As shown in FIGS. 11 and 12, a cooling air inflow port 10b for allowing air to flow into the inside of the casing 10 is formed in the front portion 10D of the casing 10. The cooling air inflow port 10b is formed in a rectangular shape, and communicates with the space above the intermediate portion 10C of the inside of the casing 10 and the inside of the casing 10 as the first storage space S1. Further, the filter panel 16 is attached to the front portion 10D of the casing 10 so as to open and close the cooling air inflow port 10b.

In the air compressing device X2, as shown in FIG. 12, the controller unit 18 and the aftercooler 22 are housed in the second storage space S2. Further, the motor unit 17 and the compressor unit 19 are housed in the first storage space S1.

The motor unit 17 has a first motor 17A and a second motor 17A arranged in the first housing space S1. The first and second motors 17A and 17B are disposed closer to the rear portion 10E than the front portion 10D in a posture in which the output shafts extend in the direction in which the front portion 10D and the rear portion 10E are arranged.

The compressor unit 19 has a first compressor 19A and a second compressor 19B that are arranged in the second housing space S2. The first and second compressors 19A and 19B are arranged in the direction in which the front portion 10D and the rear portion 10E are arranged in the first and second motors 17A and 17B, and are disposed closer to the front portion 10D than the rear portion 10E. On the side. Specifically, the first and second compressors 19A and 19B are disposed such that their output shafts overlap the output shafts of the first and second motors 17A and 17B, and are coupled to the first and second motors 17A and 17B. Each of them. The first and second compressors 19A and 19B are opposed to the filter panel 16 in the direction in which the front portion 10D and the rear portion 10E are arranged.

The fan unit 14 has a first fan unit 14A that faces the first compressor 19A and a second fan unit 14B that faces the second compressor 19B. The first fan unit 14A and the second fan unit 14B are disposed in the direction in which the first compressor 19A and the second compressor 19B are arranged. The first fan device 14A and the second fan device 14B have the same configuration, that is, the first compressor 19A and the second compressor 19B are arranged symmetrically in the direction in which they are arranged. Hereinafter, the first fan device 14A will be described.

As shown in FIG. 13, the first fan unit 14A is disposed between the first compressor 19A and the side of one side of the casing 10. Specifically, the first fan device 14A is opposed to the position where the suction port 14a is spaced apart from the side surface on the one side of the casing 10, and the delivery port 14b is disposed to face the first compressor 19A. In other words, in the air compressing device X2, the flow direction of the air in the first fan device 14A is orthogonal to the inflow direction of the air flowing into the inside of the casing 10 from the cooling air inflow port 10b. In the first embodiment, the first fan unit 14A is arranged in the cooling air flow in the direction in which the first motor 17A and the first compressor 19A are arranged. One part of the entrance 10b.

As shown in FIG. 13, the air compressing device X2 further includes a space portion 27 through which air is sent from the first and second fan devices 14A and 14B to the first and second compressors 19A and 19B. The portion 29, which discharges the air in the space portion 27, and the discharge fan 28, conveys the air in the space portion 27 to the discharge portion 29.

The space portion 27 is located between the first compressor 19A and the second compressor 19B in the second direction B1. Specifically, the space portion 27 is formed between the first compressor 19A and the second compressor 19B, and is formed on the side wall along one side of the first compressor 19A and on the other side along the second compressor 19B. Between the side walls. The air flowing from the fan unit 14 to the compressor unit 19 flows into the space portion 27, for example, through an opening formed in the side wall and the other side wall of the one side.

The discharge portion 29 is disposed closer to the rear portion 10E than the space portion 27 so as to be aligned with the space portion 27. The discharge fan 28 is disposed between the space portion 27 and the discharge portion 29. The air that has flowed into the space portion 27 is sucked by the discharge fan 28, flows into the space portion 27 from the front portion 10D side toward the rear portion 10E side, and is guided to the discharge portion 29. The discharge portion 29 is, for example, discharged to the cooler 22 after being disposed below the discharge portion 29.

Here, in the air compressing device X2, instead of the protruding portion 122 in the air compressing device X1, the inflow guiding portion 26 provided inside the casing 10 is further provided.

The inflow guide 26 is housed in the first storage space S1 inside the casing 10 . The inflow guide portion 26 has a first inflow guide portion 26A and a second inflow guide portion 26B. The first inflow guide portion 26A recirculates the air flowing into the inside of the casing 10 from the cooling air inflow port 10b to the suction port 14a from the side surface 14c of the first fan device 14A. The second inflow guide portion 26B recirculates the air flowing into the inside of the casing 10 from the cooling air inflow port 10b to the suction port 14a from the side surface 14c of the second fan device 14B. The first inflow guide portion 26A is disposed between the first compressor 19A and the side surface on one side of the casing 10, and the second inflow guide portion 26B is disposed between the second compressor 19B and the side of the other side of the casing 10. .

The first inflow guide portion 26A and the second inflow guide portion 26B are formed in the same structure, and are disposed in a symmetrical posture in the direction in which the first compressor 19A and the second compressor 19B are arranged. Hereinafter, the first inflow guide portion 26A will be described in detail.

The first inflow guide portion 26A includes a compressor holding portion 261, an upper guide portion 262, and a side guide portion 263.

The compressor holding portion 261 of the first inflow guide portion 26A is formed in a flat plate shape, and a fan opening 261a is formed in a central portion thereof. The compressor holding portion 261 of the first inflow guide portion 26A is disposed in the direction in which the first compressor 19A and the second compressor 19B are arranged, and is disposed to face the first compressor 19A. The fan opening 261a of the compressor holding portion 261 formed in the first inflow guide portion 26A communicates with the delivery port 14b of the first fan device 14A. Thereby, the air sent from the delivery port 14b of the first fan device 14A is introduced into the first compressor 19A through the fan opening 261a.

The upper guide portion 262 of the first inflow guide portion 26A extends from the upper end of the compressor holding portion 261 toward the side of one side of the casing 10. The upper guide portion 262 of the first inflow guide portion 26A is opposed to the side surface 14c of the first fan device 14A above the first fan device 14A. The upper guide portion 262 is disposed to be spaced apart from the upper portion 10A of the casing 10, and is disposed to be spaced apart from the side portion on one side of the casing 10. The sound absorbing member 30 is attached to the inner surface of the upper guide portion 262 (the surface on the side of the first fan device 14A).

The side guide portion 263 of the first inflow guide portion 26A extends from the front end of the compressor holding portion 261 (the end portion on the front portion 10D side of the casing 10) to the side portion on one side of the casing 10. The side guide portion 263 of the first inflow guide portion 26A is opposed to the side surface 14c of the first fan device 14A on the side of the first fan device 14A. The side guide portion 263 is connected to the upper guide portion 262. The side guide portion 263 is disposed to be spaced apart from the front portion 10D of the casing 10, and is disposed to be spaced apart from the side portion on one side of the casing 10. The sound absorbing member 30 is attached to the inner surface of the side guide portion 263 (the surface on the side of the first fan device 14A).

As shown in Fig. 13, the side guide portion 263 of the first inflow guide portion 26A is located in the cooling space. The airflow inlet 10b is interposed between the first fan device 14A. The suction port 14a of the first fan device 14A is in the range in which the first fan device 14A and the cooling air inflow port 10b are arranged, and is included in the range of the width of the side guide portion 263 of the first inflow guide portion 26A. In the second embodiment, in the direction in which the first compressor 19A and the second compressor 19B are arranged, one side of the side of the side of the casing 10 in the side guide portion 263 of the first inflow guide portion 26A The outer edge of the cooling air flow inlet 10b is located closer to the side of the side. Further, the suction port 14a of the first fan device 14A is located closer to the first compressor 19A side than the one end of the side guide portion 263.

In the air compressing device X2, air is introduced into the first storage space S1 inside the casing 10 from the outside of the casing 10 through the cooling air inflow port 10b. The air that has flowed into the first storage space S1 is steered in the side guide portion 263 in accordance with the suction from the suction port 14a of the first and second fan devices 14A and 14B. In other words, the air that has flowed into the first storage space S1 flows through the gap between the side guide portion 263 and the front portion 10D toward the side portion on the one side of the casing 10 and the other side portion. Further, the air that has reached the side of one side of the casing 10 and the side of the other side is steered in the side portion, and is drawn into the suction port 14a so as to wrap around the side guide portion 263. Further, in the second embodiment, a gap is formed between the upper guide portion 262 and the upper portion 10A of the casing 10, so that the air inside the casing 10 can be wound around the upper guide portion 262 through the gap. Air is drawn into the suction port 14a.

As described above, in the air compressing device X2 of the second embodiment, the air inside the casing 10 can be rewound toward the suction port 14a by the inflow guide portion 26. Thereby, the distance from which the air flows from the cooling air inflow port 10b to the suction port 14a of the fan unit 14 can be increased, and the noise can be reduced similarly to the air compressing device X1 of the first embodiment.

However, in the air compressing device X2 of the second embodiment, the discharge fan 28 can steer the flow direction of the air flowing into the space portion 27 after cooling the first and second compressors 19A and 19B. Therefore, the noise can be further reduced.

It should be considered that the first embodiment and the second embodiment described above are in all respects. They are all examples, not limitations. The scope of the present invention is not limited by the description of the first embodiment and the second embodiment, and is intended to cover all modifications within the meaning and scope of the claims.

Here, the above embodiment will be outlined.

(1) In the above air compressing device, the air that has flowed into the inside of the casing through the inflow port is sucked into the suction port so as to be retracted to the suction port of the fan device unit, and is sent to the compressor unit. That is, in the above air compressing device, the air is introduced into the casing by the suction of the fan device unit, and the flow direction of the air introduced into the casing can be steered. That is, in the above air compressing device, the flow distance of the air from the inflow port to the suction port can be made long, and the air has a large collision with the member in the casing when the air is turned in the direction of flow. Therefore, the noise generated in the casing of the air compressing device can be reduced.

(2) The air compressing device further preferably includes an inflow guiding portion that circulates the air sucked into the suction port from the side surface of the fan device unit to the suction port, and faces the side surface And configuration.

In the air compressing device described above, since the inflow guide portion is disposed to face the side surface of the fan device unit, the air in the casing can be guided to the suction port through the space between the side surface of the fan device unit and the inflow guide portion. Thereby, the air in the casing can be surely rewound to the suction port.

(3) Preferably, the inflow guiding portion has a side portion facing the side surface of the fan device unit and a facing portion facing the suction port of the fan device unit.

In the above air compressing device, the air flowing between the side surface and the side portion of the fan unit is steered by the opposing portion and guided to the suction port. Thereby, the flow direction of the air sucked into the suction port of the fan unit can be surely steered.

(4) The air compressing device described above may further include a panel member that is formed in the casing and that is openable and closable for opening the inside of the casing. In this case, it is preferable that the inflow guide is integrally formed with the panel member.

In the air compressing device described above, since the inflow guide portion and the panel member are integrally formed, it is not necessary to separately provide the inflow guide portion inside the casing.

(5) The fan unit is preferably attached to the panel member.

In the air compressing device described above, when the panel member is actuated to open the opening formed in the frame body, the inflow guide portion integrally formed with the panel member and the fan device unit attached to the panel member are also actuated together. Therefore, by actuating the panel member so as to open the opening of the casing, the compressor unit inside the casing can be easily maintained, for example, through the opening.

(6) The inflow port and the fan unit are preferably arranged to be shifted in the vertical direction.

In the air compressing device described above, the flow port and the fan unit are arranged to be displaced in the vertical direction, and the flow direction of the air flowing into the casing from the inflow port is turned at least once in the vertical direction. Therefore, in the air compressing apparatus described above, the area of the casing in the horizontal direction can be suppressed to be smaller than the case where the noise is reduced by turning the flow direction of the air which is repeated only in the horizontal direction. In other words, in the air compressing device described above, for example, the installation area of the air compressing device mounted on the vehicle can be suppressed to be small, and the noise can be sufficiently reduced.

(7) The air compressing device described above may further include an inflow guiding portion that retracts air flowing into the inside of the casing from the inflow port to the suction port. In this case, it is preferable that the inflow guide is disposed between the inflow port and the fan unit. Further, it is preferable that the suction port of the fan unit is in a range in which the fan unit and the inlet are arranged to receive the width of the inflow guide.

In the above air compressing device, since the suction port is disposed in the range of the width of the inflow guiding portion provided between the inflow port and the fan unit, the air flowing into the inside of the frame from the inflow port is retracted according to the suction of the suction port. Flows in the way of flowing into the guide. That is, in the air compressing device described above, it is possible to flow into the inside of the casing by flowing into the guide portion. The air is rewound to the suction port, thereby reducing noise.

(8) The air compressing device described above preferably further includes a sound absorbing member attached to the inflow guiding portion.

In the air compressing device described above, the sound absorbing member attached to the inflow guiding portion can reduce the noise caused by the air flowing along the inflow guiding portion.

(9) Preferably, the sound absorbing member is provided at least between the upper portion of the casing and the fan unit.

In the above air compressing device, the sound absorbing member is disposed between the upper surface of the casing and the fan unit. Therefore, for example, when the air compressing device is installed under the floor of the vehicle, the noise of the person riding the vehicle can be efficiently reduced.

(10) The air compressing device described above may further include: an adapter unit having a through hole for guiding air sent from the delivery port of the fan device unit to the compressor unit. In this case, the through hole of the adapter unit is preferably formed in a shape corresponding to the shape of the delivery port on the fan device unit side, and is formed on the compressor unit side and the compressor unit. The shape corresponds to the shape.

In the air compressing device described above, even if the air in the casing is sucked by the suction port to cause the air introduced into the fan unit to be lost, the air sent from the outlet can be efficiently used. Supply to the compressor unit. Thereby, noise can be reduced and the compressor unit can be sufficiently cooled.

(11) The air compressing device preferably further includes: a motor unit having a motor body for driving the compressor unit; and a motor mounted coaxially with the motor body and generating an air flow according to driving of the motor body fan.

In the air compressing device described above, since the motor unit has a motor fan that is coaxial with the motor body, it is not necessary to separately provide a fan for ventilation in the casing, and it is possible to suppress an increase in size of the casing.

(12) The frame may have an outflow port through which air in the frame flows out. The situation Preferably, the air compressing device further includes an outflow guiding portion that is provided to steer toward the outlet port in a flow direction of air flowing through the compressor unit toward the opposite side of the fan unit.

In the air compressing apparatus described above, the air taken in from the suction port of the fan unit is sent from the fan unit and the compressor unit is cooled, and then turned off by the outflow guide on the opposite side of the fan unit from the compressor unit. And the self-flow outlet flows out to the outside of the frame. That is, in the air compressing apparatus described above, in addition to the flow direction of the air which is sucked in by the suction port of the fan unit, the flow direction of the air after cooling the compressor unit is also turned, so that noise can be further reduced.

As described above, according to the above embodiment, an air compressing device capable of reducing noise is provided.

Claims (12)

An air compressing device comprising: a compressor unit; a casing accommodating the compressor unit, wherein the frame body has an inflow port through which air flows into the inside; and a fan device unit having suction into the frame through the inflow port a suction port for air in the body, and air taken in from the suction port is sent to the compressor unit; and an inflow guide is disposed between the inlet port and the suction port, and protrudes from the inlet port to the above The air flow through the suction port diverts the air flow. The air compressing device according to claim 1, wherein the inflow guiding portion is configured such that air sucked into the suction port is rewound from the side surface of the fan device unit toward the suction port, and is disposed opposite to the side surface . The air compressing device according to claim 2, wherein the inflow guiding portion includes a side portion facing the side surface of the fan device unit and a facing portion facing the suction port of the fan device unit. The air compressing device of claim 3, further comprising: an opening formed in the frame and configured to perform maintenance of the inside of the frame; a panel member opening and closing the opening; and the inflow guiding portion and the panel The components are constructed in one piece. The air compressing device of claim 4, wherein the fan unit is mounted to the panel member. The air compressing device of claim 1, wherein the flow inlet and the fan device are The metasystems are staggered in the vertical direction and arranged. The air compressing device of claim 1, wherein the suction port of the fan unit is located further outside the inlet formed in the casing. The air compressing device of claim 2, further comprising a sound absorbing member attached to the inflow guiding portion. An air compressing device according to claim 8, wherein said sound absorbing member is provided at least between said upper portion of said casing and said fan device unit. The air compressing device of claim 1, further comprising: an adapter unit having a through hole for guiding air sent from the outlet of the fan unit to the compressor unit; and the through unit of the adapter unit The hole system is formed in a shape corresponding to the shape of the delivery port on the fan device unit side, and is formed in a shape corresponding to the shape of the compressor unit on the compressor unit side. The air compressing device of claim 1, further comprising: a motor unit having a motor body for driving the compressor unit, and a motor mounted coaxially with the motor body and generating airflow corresponding to driving of the motor body fan. The air compressing device according to any one of claims 1 to 11, wherein the frame comprises an outflow port for allowing air in the frame to flow out; and the air compressing device further comprises: an outflow guiding portion, which is configured to be interposed The compressor unit is disposed to steer toward the outlet port in a flow direction of air flowing on the opposite side of the fan unit.