EP3306088B1 - Air compression device - Google Patents
Air compression device Download PDFInfo
- Publication number
- EP3306088B1 EP3306088B1 EP16803190.4A EP16803190A EP3306088B1 EP 3306088 B1 EP3306088 B1 EP 3306088B1 EP 16803190 A EP16803190 A EP 16803190A EP 3306088 B1 EP3306088 B1 EP 3306088B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- air
- unit
- compressor
- fan device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000006835 compression Effects 0.000 title claims description 103
- 238000007906 compression Methods 0.000 title claims description 103
- 238000001816 cooling Methods 0.000 claims description 105
- 238000012423 maintenance Methods 0.000 description 27
- 230000008961 swelling Effects 0.000 description 15
- 238000003780 insertion Methods 0.000 description 14
- 230000037431 insertion Effects 0.000 description 14
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/066—Cooling by ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
Definitions
- the present invention relates to an air compression device.
- Patent Literature 1 describes an air compression device provided with a housing case, and a compressor unit and a compression drive portion housed in the housing case.
- the compression drive portion is coupled to a compressor. By driving the compressor unit by the compression drive portion, compressed air for use in a vehicle is generated.
- the air compression device of Patent Literature 1 is further provided with a cooling fan for cooling the compressor unit.
- the cooling fan generates an air flow heading from the cooling fan to the compressor unit.
- a filter portion is provided which allows air to flow from the outside to the inside of the housing case.
- air flowing into the housing case through the filter portion is guided to the compressor unit by the cooling fan. As a result, the compressor unit is cooled.
- the cooling fan in the housing case, the cooling fan is provided behind a surface on which the filter portion is provided and further behind the cooling fan, the compressor unit is provided. Therefore, when, for example, maintenance of the inside of the housing case is conducted from a side of a surface facing the cooling fan in the housing case, the cooling fan becomes a hindrance. This makes maintenance of the compressor unit difficult.
- Patent Literature 1 Japanese Patent Unexamined Publication No. 2011-226285
- Patent Literature 2 JP-2006112353A .
- An object of the present invention is to provide an air compression device enabling maintenance of a compressor unit to be conducted with ease.
- the invention is defined by the appended claims.
- An air compression device includes a housing which has a front portion with an opening formed and in which a compressor unit is housed; a fan device unit which generates an air flow that cools the compressor unit; and a panel member to which the fan device unit is attached, the panel member being attached to the housing so as to be able to open or close the opening of the housing.
- the air compression device X1 can include an arbitrary constituent member not shown in each figure referred to in the present specification.
- FIG. 1 and FIG. 2 show a railroad vehicle 100 on which the air compression device X1 according to the present embodiment is mounted.
- Compressed air generated by the air compression device X1 is used for activating various kinds of pneumatic apparatuses such as a brake device, a door open-and-close device, and the like which are mounted on the railroad vehicle 100.
- the air compression device X1 may not be mounted on the railroad vehicle 100 but be mounted on an apparatus of other vehicle mounted with a pneumatic apparatus, or the like.
- the railroad 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 vertically so as to link the floor portion 100a and the upper wall portion 100b. Additionally, the railroad vehicle 100 has wheels attached to the floor portion 100a, and door portions attached to the side wall portions 100c and 100d. A user of the railroad vehicle 100 gets on the railroad vehicle 100 from a platform in a station through the door portion attached to the side wall portion 100c or the side wall portion 100d. Then, as shown in FIG. 2 , the railroad vehicle 100 travels on a track formed with cross ties 102 and rails 101 extending in a direction orthogonal to the cross ties 102, along the rails 101.
- the air compression device X1 is attached to the floor portion 100a of the railroad vehicle 100 as shown in FIG. 1 . Specifically, the air compression device X1 is hung on a lower side of the floor portion 100a via a hanging member 200.
- FIG. 3 is a perspective view showing a schematic configuration of the air compression device X1.
- FIG. 4 is a view showing a state where a panel unit 11 and a cooling air filter portion 16 to be described later are detached from the air compression device X1 shown in FIG. 3 .
- FIG. 5 is a view of the air compression device X1 seen from a second direction B1, which view is seen through a side portion of a housing 10 to be described later.
- FIG. 6 is a view of an inside of the housing 10 in the air compression device X1 seen from above, which is a view seen through insides of a first recessed space S3, a second recessed space S4, and a guide path 20 to be described later.
- the air compression device X1 mainly includes the housing 10, a motor unit 17 and a compressor unit 19 housed in the housing 10, and a controller unit 18 arranged outside the housing 10.
- the air compression device X1 in conjunction with the motor unit 17 driven by the controller unit 18, the compressor unit 19 is driven. As a result, air flowing into the compressor from the outside of the housing 10 is compressed.
- the housing 10 houses various kinds of members such as the motor unit 17, the compressor unit 19, and the like provided in the air compression device X1.
- the housing 10 has a generally hexahedral shape having an upper portion 10A and a lower portion 10B facing to each other, a front portion 10D and a rear portion 10E facing to each other, and one side portion and the other side portion facing to each other. Then, a space surrounded by the upper portion 10A, the lower portion 10B, the front portion 10D, the rear portion 10E, the one side portion, and the other side portion serves as a housing space which houses various kinds of members provided in the air compression device X1.
- a direction in which the upper portion 10A and the lower portion 10B face to each other is referred to as a vertical direction C1. Additionally, a direction in which the front portion 10D and the rear portion 10E face to each other is referred to as a first direction A1. Additionally, a direction orthogonal to the vertical direction C1 and the first direction A1 is referred to as the second direction B1.
- the air compression device X1 is mounted to the railroad vehicle 100 in a posture of having the first direction A1 extending along a direction in which the cross ties 102 extend and having the second direction B1 extending along a direction in which the rails 101 extend as shown in FIG. 2 .
- the air compression device X1 is disposed on a lower surface of the floor portion 100a of the railroad vehicle 100 in a posture of having the upper portion 10A facing to the floor portion 100a, the front portion 10D located on the side of the side wall portion 100c in the first direction A1, and the rear portion 10E located at a position near the center in a car width direction.
- the housing 10 has an intermediate portion 10C provided between the upper portion 10A and the lower portion 10B so as to divide an internal housing space of the housing 10 into two.
- a space formed between the upper portion 10A and the intermediate portion 10C serves as a first housing space S1 which houses the compressor unit 19
- a space formed between the intermediate portion 10C and the lower portion 10B serves as a second housing space S2 which houses the compressor unit 19.
- the motor unit 17 and the compressor unit 19 are arranged so as to be deviated from each other in the vertical direction C1. This enables a reduction in a horizontally occupied area in the air compression device X1.
- the housing 10 has a generally hexahedral shape, the shape is not limited thereto.
- the shape of the housing 10 is arbitrary and can be appropriately changed according to sizes, arrangement and the like of the various kinds of members housed in the housing 10.
- the intermediate portion 10C may not be provided.
- the compressor unit 19 and the motor unit 17 may be arranged so as to be deviated from each other in the vertical direction C1.
- the motor unit 17 is housed in the first housing space S1 inside the housing 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 in line with each other in the second direction B1.
- the first motor 17A and the second motor 17A have the same structure and arranged to be in a posture symmetrical to each other in the second direction B1. In the following, the first motor 17A will be described.
- the first motor 17A has an output shaft 171, a motor main body 172, and a drive pulley 173.
- the output shaft 171 extends along the second direction B1 and projects from the motor main body 172 to the one side portion of the housing 10.
- the drive pulley 173 is attached to the projecting output shaft 171. This makes the motor main body 172 and the drive pulley 173 be arranged in the second direction B1.
- the controller unit 18 is attached to the rear portion 10E of the housing 10 in the outside of the housing 10.
- the controller unit 18 has a box-shaped member, and a controller which is housed in the box-shaped member and controls drive of the motor unit 17.
- Each motor main body 172 of the respective motors 17A and 17B is to be driven by the controller unit 18.
- various kinds of electronic parts may be housed other than the controller for controlling drive of the motor unit 17.
- the compressor unit 19 is housed in the second housing space S2 in the housing 10 as shown in FIG. 4 . Specifically, the compressor unit 19 is mounted on the intermediate portion 10C of the housing 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 in line in the second direction B1.
- the first compressor 19A is arranged above the first motor 17A
- the second compressor 19B is arranged above the second motor 17A.
- the first compressor 19A and the second compressor 19B have the same structure.
- the first compressor 19A and the second compressor 19B are arranged symmetrically to each other in spaced relation so as to have suction ports thereof facing to each other in the second direction B1.
- 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 extends in the second direction B1 to project from the compressor main body 19a to the one side portion of the housing 10.
- the drive pulley 19b is attached to the projected input shaft 19c. This makes the compressor main body 19a and the drive pulley 19b be arranged in line in the second direction B1.
- the drive pulley 19b of the first compressor 19A is arranged so as to overlap the drive pulley 173 of the first motor 17A in the vertical direction C1.
- an endless belt B is wound around the drive pulley 19b of the first compressor 19A and the drive pulley 173 of the first motor 17A.
- the intermediate portion 10C of the housing 10 has a through hole formed on the side portion side of the housing 10, which through hole communicates the first housing space S1 to the second housing space S2.
- the communication through hole overlaps the drive pulleys 19b and 174 in the vertical direction C1.
- the belt B is arranged to extend from the first housing space S1 to the second housing space S2 through the through hole, and is attached to the drive pulleys 19b and 174 in the housing spaces S1 and S2, respectively.
- the compressor main body 19a of the first compressor 19A To the compressor main body 19a of the first compressor 19A, driving force is transmitted via the input shaft 19c by circulation of the belt B around the drive pulleys 19b and 174 along with drive of the motor main body 172 of the first motor 17A. As a result, the compressor main body 19a of the first compressor 19A is to generate compressed air.
- the air compression device X1 further includes a guide path 20 which guides air having flowed in from the outside of the housing 10 to the compressor main body 19a, an outflow pipe portion 21 through which compressed air generated in the compressor main body 19a flows out from the compressor main body 19a, and an aftercooler 22 which cools compressed air flowing through the outflow pipe portion 21.
- the guide path 20 is housed in the first housing space S1 in the housing 10. Specifically, the guide path 20, as shown in FIG. 6 , is arranged between the first compressor 19A and the second compressor 19B to extend along the first direction A1.
- the guide path 20 has an inflow opening 20a allowing air to flow in, and a first outflow opening 20b and a second outflow opening 20c allowing the air to flow into the compressor main body 19a of the first and second compressors 19A and 19B, respectively.
- the inflow opening 20a is formed, in the guide path 20, on a surface facing to the front portion 10D of the housing 10. Air flowing in from the outside of the housing 10 through a compressible air inflow port 121a formed in a panel member 12 of the panel unit 11 to be described later is to flow into the guide path 20 through the inflow opening 20a.
- the first outflow opening 20b is formed, in the guide path 20, on a surface facing to the first compressor 19A.
- the first outflow opening 20b leads to the suction port in the first compressor 19A through a linkage pipe (not shown by a reference numeral). This causes air flowing into the guide path 20 to flow out from the guide path 20 through the first outflow opening 20b and flow into the first compressor 19A.
- the second outflow opening 20c is formed, in the guide path 20, on a surface facing to the second compressor 19B.
- the second outflow opening 20c leads to the suction port in the second compressor 19B through the linkage pipe (not shown by a reference numeral). This causes air flowing into the guide path 20 to flow out from the guide path 20 through the first outflow opening 20b and flow into the second compressor 19B.
- the outflow pipe portion 21 has a first outflow pipe 21a leading to the compressor main body 19a of the first compressor 19A, a second outflow pipe 21b leading to the compressor main body 19a of the second compressor 19B, a manifold portion 21c which links the first outflow pipe 21a and the second outflow pipe 21b, and a confluence pipe 21d through which compressed air joined in the manifold portion 21c flows.
- the first outflow pipe 21a is connected to a surface of the first compressor 19A facing to the second compressor 19B, extends along the first direction A1 toward the front portion 10D side, and bends upward in the vicinity of the front portion 100 to extend to the upper portion 10A side along the vertical direction C1. Air flowing into a suction port of the compressor main body 19a in the first compressor 19A through the guide path 20 is compressed in the compressor main body 19a to flow out through the first outflow pipe 21a.
- the second outflow pipe 21b is connected to a surface of the second compressor 19B facing to the first compressor 19A, extends along the first direction A1 toward the front portion 10D side, and bends upward in the vicinity of the front portion 10D to extend to the upper portion 10A side along the vertical direction C1. Air flowing into the suction port of the compressor main body 19a in the second compressor 19B through the guide path 20 is compressed in the compressor main body 19a to flow out through the second outflow pipe 21b.
- the manifold portion 21c is attached to the upper portion 10A of the housing 10 as shown in FIG. 4 and FIG. 5 .
- the manifold portion 21c is housed in the first housing space S1 in the housing 10 and is attached to the front portion 10D side, in the upper portion 10A, between the first compressor 19A and the second compressor 19B.
- the first and second outflow pipes 21a and 21b are connected to the manifold portion 21c, so that in the manifold portion 21c, compressed air flowing through the first outflow pipe 21a and compressed air flowing through the second outflow pipe 21b join.
- the confluence pipe 21d is connected to the manifold portion 21c to extend from the front portion 10D side of the housing 10 to the rear portion 10E side along the upper portion 10A of the housing 10. Compressed air having joined in the manifold portion 21c is to flow into the confluence pipe 21d to flow from the front portion 10D side of the housing 10 to the rear portion 10E side.
- an outflow port 10c is formed which communicates the first housing space S1 with the outside of the housing 10.
- the outflow port 10c is formed in a part of the rear portion 10E on the upper portion 10A side.
- the confluence pipe 21d extends from the front portion 10D side to the rear portion 10E side and also extends to the outside of the housing 10 through the outflow port 10c formed in the rear portion 10E.
- the aftercooler 22 is attached to the rear portion 10E of the housing 10 in the outside of the housing 10.
- the aftercooler 22 is arranged above the controller unit 18.
- the aftercooler 22 has a meandering pipe 22a, a protection cover 22b which houses the meandering pipe 22a, and a cooler fan 22c which sends air outside the housing 10 to the inside of the protection cover 22b.
- the protection cover 22b is arranged outside the housing 10 and back and above the rear portion 10E. A part of the protection cover 22b located back of the rear portion 10E is separated from the rear portion 10E.
- the meandering pipe 22a extends in the protection cover 22b while meandering in the second direction B1.
- the confluence pipe 21d externally extending from the inside of the housing 10 leads to the meandering pipe 22a. Compressed air flowing through the confluence pipe flows into the meandering pipe 22a.
- the cooler fan 22c is arranged between the rear portion 10E and the protection cover 22b below the outflow port 10c. The cooler fan 22c sucks air outside the housing 10 and sends the same toward the meandering pipe 22a in the protection cover 22b.
- the air compression device X1 further includes the cooling air filter portion 16 attached to the housing 10 so as to be able to open or close the cooling air inflow port 10b, and the panel unit 11 attached to the housing 10 so as to be able to open or close the opening 10a.
- FIG. 7 is a front view of the air compression device X1 seen from the front portion 10D side of the housing 10. Additionally, FIG. 8 is a front view showing a state where in the air compression device XI in FIG. 7 , the cooling air filter portion 16 and the panel unit 11 are detached from the housing 10. Additionally, FIG. 9 is a perspective view of the panel unit 11 seen from the back, which view shows a state where a compressible air filter portion 26 to be described later is detached.
- the cooling air inflow port 10b is formed for cooling various kinds of members inside the housing 10 by causing cooling air to flow into the housing 10.
- the cooling air inflow port 10b is formed in the front portion 10D of the housing 10.
- the front portion 10D of the housing 10 has a beam portion 10d to which the intermediate portion 10C is fixed as shown in FIG. 4 .
- the beam portion 10d extends along the second direction B1.
- the cooling air inflow port 10b is formed between the beam portion 10d and the lower portion 10B and has a generally rectangular shape. This allows the cooling air inflow port 10b to communicate the outside of the housing 10 to the second housing space S2 in the housing 10.
- the cooling air filter portion 16 is attached to the front portion 10D of the housing 10 so as to cover the cooling air inflow port 10b.
- the cooling air filter portion 16 has a louver 161 including a plurality of elongated plate-shaped members assembled to be spaced apart from each other and in parallel to each other, and a filter portion 162 attached to a back surface of the louver 161 as shown in FIG. 3 .
- the louver 161 is attached to the front portion 10D of the housing 10 such that the filter portion 162 is fitted in the cooling air inflow port 10b.
- a hinge 161a and a lever lock 161b are attached as shown in FIG. 3 and FIG. 7 .
- the hinge 161a fixes an upper end portion of the louver 161 in the vertical direction C1 to the beam portion 10d in the front portion 10D of the housing 10.
- the lever lock 161b detachably fixes a lower end portion of the louver 161 in the vertical direction C1 and the front portion 10D of the housing 10.
- the cooling air filter portion 16 closes, ahead of the front portion 10D of the housing 10, the cooling air inflow port 10b as shown in FIG. 7 .
- the cooling air inflow port 10b formed in the front portion 10D is opened as shown in FIG. 8 .
- the motor unit 17 housed in the second housing space S2 is exposed.
- the cooling air filter portion 16 is fixed to the front portion 10D of the housing 10 by the hinge 161a and the lever lock 161b, this is not always the case.
- the cooling air filter portion 16 may be attached to the housing 10 via a fastening member such as a bolt or the like.
- the cooling air filter portion 16 is detachable from the housing 10, so that attachment or detachment of the fastening member such as a bolt or the like enables the cooling air inflow port 10b to be opened or closed.
- a through hole 10e is formed which passes through the intermediate portion 10C in the vertical direction C1.
- the through hole 10e is formed closer to the front portion 10D side than the compressor unit 19 and the motor unit 17.
- the through hole 10e has a rectangular shape extending from ahead of the first motor 17A to ahead of the second motor 17B.
- the through hole 10e communicates the first housing space S1 to the second housing space S2. Therefore, air flowing into the second housing space S2 in the housing 10 through the cooling air inflow port 10b can be moved to the first housing space S1 through the through hole 10e before reaching the motor unit 17.
- the opening 10a is formed for the maintenance of the compressor unit 19 and the like housed in the housing 10.
- the opening 10a is formed in the front portion 10D of the housing 10.
- the opening 10a is formed between the beam portion 10d and the upper portion 10A and has a generally rectangular shape. This enables the opening 10a to communicate the outside of the housing 10 to the first housing space S1 in the housing 10.
- 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 housing 10 so as to cover the opening 10a.
- the panel unit 11 has the panel member 12, a sound-absorbing member 13, a fan device unit 14, an adaptor unit 15, and the compressible air filter portion 26 as shown in FIG. 3 , FIG. 5 , FIG. 7 , and FIG. 9 .
- the panel member 12 is attached to the housing 10 so as to be able to open or close the opening 10a.
- the panel member 12 has a main body portion 121, a swelling portion 122 which swells ahead of the main body portion 121 in a direction orthogonal to the main body portion 121, and a fixing plate 123 extending behind the main body portion 121 in the direction orthogonal to the main body portion 121.
- the main body portion 121 is a flat plate along the front portion 10D of the housing 10 and has a generally rectangular shape.
- the main body portion 121 is attached to the front portion 10D of the housing 10 so as to cover the opening 10a with the entire panel member 12.
- a plurality of insertion holes 121b is formed in an outer circumference portion of the main body portion 121 as shown in FIG. 7 .
- Each insertion hole 121b overlaps a fastening hole formed in the front portion 10D of the housing 10.
- a bolt-shaped attachment member 23 is inserted into each insertion hole 121b and each fastening hole of the front portion 10D, and the attachment member 23 fixes the main body portion 121 and the front portion 10D of the housing 10.
- the panel member 12 is detachably attached to the housing 10 by the attachment member 23.
- the air compression device X1 in a state where the main body portion 121 of the panel member 12 is attached to the front portion 10D of the housing 10 by the attachment member 23, the panel unit 11 closes, ahead of the front portion 10D of the housing 10, the opening 10a.
- FIG. 8 in a state where the panel unit 11 is detached from the front portion 10D of the housing 10 by detaching the attachment member 23, the opening 10a formed in the front portion 10D is opened . Then, from the opening 10a, the compressor unit 19 housed in the second housing space S2 is exposed.
- the main body portion 121 of the panel member 12 is fixed to the front portion 10D by the bolt-shaped attachment member 23, this is not always the case.
- the main body portion 121 of the panel member 12 may be fixed to, for example, the front portion 10D of the housing 10 by the hinge portion and the lever lock similarly to the cooling air filter portion 16. In this case, the panel unit 11 is allowed to open or close the opening 10a by releasing or fastening the lever lock.
- the main body portion 121 has the compressible air inflow port 121a formed for allowing air to be compressed in the compressor unit 19 to flow from the outside of the housing 10 to the inside thereof.
- the compressible air inflow port 121a is formed in a middle portion of the main body portion 121 in the second direction B1 as shown in FIG. 7 .
- the compressible air inflow port 121a has a generally circular shape.
- the compressible air inflow port 121a is located between a first fan device 14A and a second fan device 14B to be described later so as to face to the inflow opening 20a of the guide path 20.
- the swelling portion 122 is formed as a part of an inner surface of the panel member 12 recessed toward an outer surface side of the panel member 12. In other words, the swelling portion 122 is integrally configured with the main body portion 121 in the panel member 12. In the present embodiment, the swelling portion 122 is located so as to be surrounded by the main body portion 121 as shown in FIG. 7 .
- the swelling portion 122 has a facing portion 122b, and a side portion 122a linked with the facing portion 122b as shown in FIG. 3 , FIG. 5 , and FIG. 9 .
- the facing portion 122b is a part which extends in a plane direction similarly to the main body portion 121, and is located ahead of the main body portion 121. Specifically, with the panel member 12 closing the opening 10a, the facing portion 122b is located on the side opposite to the compressor unit 19 with the main body portion 121 provided therebetween in the second direction B1.
- the side portion 122a is a part extending in the direction orthogonal to the main body portion 121 so as to link the facing portion 122b and the main body portion 121.
- the side portion 122a is located to extend from the outside to the inside of the main body portion 121 in the direction orthogonal to the main body portion 121.
- the side portion 122a has an upper extension portion 122c, side extension portions 122d and 122e, and a lower extension portion 122f as shown in FIG. 3 and FIG. 7 .
- the upper extension portion 122c leads to an upper end of the facing portion 122b, as well as extending horizontally. Both of the side extension portions 122d and 122e lead to both side ends of the facing portion 122b, as well as extending generally vertically.
- the lower extension portion 122f leads to a lower end of the facing portion 122b, as well as extending from a lower end of the side extension portion 122d to a lower end of the side extension portion 122e.
- the lower extension portion 122f has a first part 122g extending inwardly from the lower end of the side extension portion 122d in the horizontal direction, a second part 122h extending inwardly from the lower end of the side extension portion 122e in the horizontal direction, and a third part 122i linking the first part 122g and the second part 122h while bending upward so as to avoid the compressible air inflow port 121a of the main body portion 121. Then, these upper extension portion 122c, side extension portions 122d and 122e, and lower extension portion 122f continue to form a closed loop.
- the swelling portion 122 is provided such that a part of the inner surface of the panel member 12 is recessed toward the outer surface side, thereby forming one recessed space S5 surrounded by the facing portion 122b and the side portion 122a of the swelling portion 122.
- This recessed space S5 communicates with the first housing space S1 in the housing 10, with the panel unit 11 being at a position to close the opening 10a.
- the fixing plate 123 is a plate-shaped member for fixing the compressible air filter portion 26 to the panel member 12.
- the fixing plate 123 is located below the compressible air inflow port 121a to extend from an inner surface of the main body portion 121 toward the rear of the main body portion 121 as shown in FIG. 9 .
- the fixing plate 123 falls within a range of a width of the compressible air inflow port 121a in the horizontal direction.
- the fixing plate 123 has two insertion holes 123a formed which pass through the fixing plate 123. The two insertion holes 123a are located to be horizontally spaced apart from each other.
- FIG. 10 is a perspective view of a schematic configuration of the compressible air filter portion 26.
- the compressible air filter portion 26 has a filter main body 26a, an insertion portion 26b provided at an rear end of the filter main body 26a, and a fixing portion 26c projecting in a radial direction from a middle portion of the filter main body 26a in a direction in which the guide path 20 extends.
- the filter main body 26a is a filter which removes dusts and the like from air to be compressed which flows into the housing 10 through the compressible air inflow port 121a.
- the filter main body 26a has a cylindrical exterior.
- the insertion portion 26b is a part of the compressible air filter portion 26, the part which is inserted into the inflow opening 20a of the guide path 20.
- the insertion portion 26b extends further backward from the rear end of the filter main body 26a in an axis direction and has an outer diameter smaller than that of the filter main body 26a.
- the fixing portion 26c is a part for fixing the compressible air filter portion 26 to the main body portion 121 of the panel member 12.
- the fixing portion 26c projects from an outer surface of the filter main body 26a to the outside of the filter main body 26a in the radial direction.
- an outermost surface of the fixing portion 26c in the radial direction of the filter main body 26a has a flat rectangular shape.
- two fitting-in bolts 26d are attached to the outermost surface of the fixing portion 26c.
- the two fitting-in bolts 26d are separated with a space provided therebetween in a longitudinal direction (a direction orthogonal to an axis direction of the compressible air filter portion 26) of the outermost surface of the fixing portion 26c.
- the compressible air filter portion 26 is detachably attached to the panel member 12.
- the filter main body 26a of the compressible air filter portion 26 is fitted in the compressible air inflow port 121a so as to have the fixing portion 26c facing down as shown in FIG. 11 .
- the filter main body 26a is inserted into the compressible air inflow port 121a from the front portion 10D side to the rear portion 10E side so as to have a part thereof in the axis direction located ahead of the main body portion 121 and have a reminder thereof in the axis direction located behind the main body portion 121.
- the fixing portion 26c falls within a range of a width of the filter main body 26a in a horizontal direction.
- the fixing portion 26c is arranged in a posture of overlapping the inner surface of the main body portion 121. Then, the fitting-in bolts 26d and 26e attached to the fixing portion 26c are inserted into the insertion hole 123a of the fixing plate 123. As a result, the fixing portion 26c is fixed to the fixing plate 123, and the compressible air filter portion 26 is attached to the panel member 12.
- the insertion portion 26b inserted into the inflow opening 20a is attached to the guide path 20 via a trim seal 27 arranged inside an edge portion of the guide path 20 forming the inflow opening 20a.
- the trim seal 27 links the insertion portion 26b of the compressible air filter portion 26 and the guide path 20. This results in causing air flowing into the filter main body 26a from the outside of the housing 10 to flow into the guide path 20 through the insertion portion 26b.
- the trim seal 27 has such an extent of elasticity which enables an error in attachment of the insertion portion 26b to the guide path 20 to be absorbed.
- the fixing portion 26c is moved upward in the state shown in FIG. 11 .
- the fitting-in bolt 26d is detached from the insertion hole 123a to pull out the entire compressible air filter portion 26 from the compressible air inflow port 121a.
- the compressible air filter portion 26 is detached from the panel member 12.
- the fan device unit 14 generates an air flow which cools the compressor unit 19. Specifically, the fan device unit 14 sends the air flowing into the housing 10 from the cooling air inflow port 10b toward the compressor unit 19.
- the fan device unit 14 has the first fan device 14A which generates an air flow that cools the first compressor 19A, and the second fan device 14B which generates an air flow that cools the second compressor 19B.
- a part of the first fan device 14A is arranged in the first recessed space S3 surrounded mainly by the upper extension portion 122c, the side extension portion 122d, and the first part 122g.
- a part of the second fan device 14B is arranged in the second recessed space S4 surrounded mainly by the upper extension portion 122c, the side extension portion 122e, and the second part 122h.
- the recessed space S5 is a continuous space in which the first recessed space S3 and the second recessed space S4 continue to each other so as to avoid the compressible air inflow port 121a above the compressible air inflow port 121a.
- the first recessed space S3 and the second recessed space S4 may be divided.
- the first fan device 14A and the second fan device 14B have the same structure. In the following, the first fan device 14A will be described.
- the first fan device 14A is configured with two axial fans which are arranged to overlap with each other in a direction orthogonal to the facing portion 122b.
- the number of axial fans configuring the first fan device 14A may be one, or three or more.
- the first fan device 14A has an inlet port 14a which sucks air flowing into the housing 10 from the cooling air inflow port 10b, an outlet port 14b located on the side opposite to the inlet port 14a to send out air sucked from the inlet port 14a, and an attachment portion 14d for attaching the first fan device 14A to the panel member 12.
- the first fan device 14A is configured to have an impeller arranged inside the tubularly-formed side surface 14c. Then, the inlet port 14a is formed with an opening at one end side on the tubularly-formed side surface 14c, and the outlet port 14b is formed with an opening at the other end on the side surface 14c.
- the first fan device 14A is arranged in a posture of having the inlet port 14a facing to the facing portion 122b forming the first recessed space S3 so as to be spaced therefrom, and having the outlet port 14b facing to the first compressor 19A side.
- the first fan device 14A is arranged to extend from the first recessed space S3 to the first housing space S1 such that the inlet port 14a is located in the first recessed space S3.
- an end portion of the side surface 14c on a side where the inlet port 14a is provided in the first fan device 14A is arranged on a side closer to the facing portion 122b than an end portion of the side portion 122a on the first compressor 19A side.
- a part of the side surface 14c of the first fan device 14A faces to the side portion 122a forming the first recessed space S3 so as to be spaced therefrom.
- the attachment portion 14d of the first fan device 14A extends from the side surface 14c of the first fan device 14A in a radial direction of the first fan device 14A. Then, the attachment portion 14d of the first fan device 14A is fixed to the panel member 12 via a bolt. In other words, the fan device unit 14 is attached to the panel member 12.
- the first fan device 14A may be located as a whole in the first recessed space S3.
- the inlet port 14a is arranged in the second recessed space S4, while a part of the side surface 14c is arranged to face to the side portion 122a with a space provided therebetween, the side portion forming the second recessed space S4.
- the adaptor unit 15 guides air sent from the outlet port 14b in the fan device unit 14 to the compressor unit 19.
- the adaptor unit 15 has a first adaptor 15A fixed to the outlet port 14b side of the first fan device 14A, and a second adaptor 15B fixed to the outlet port 14b of the second fan device 14B.
- the first adaptor 15A is arranged between the outlet port 14b of the first fan device 14A and the first compressor 19A.
- the second adaptor 15B is arranged between the outlet port of the second fan device 14B and the second compressor 19B.
- the first adaptor 15A and the second adaptor 15B have the same structure. In the following, the first adaptor 15A will be described.
- the first adaptor 15A has a plate-formed member with a rectangular shape.
- the first adaptor 15A is formed with a through hole passing through the first adaptor 15A in the first direction A1.
- the through hole On the first fan device 14A side, the through hole has a shape corresponding to a shape of the outlet port 14b and on the first compressor 19A side, has a shape corresponding to an outer shape of the first compressor 19A.
- the adaptor unit 15 is dispensable, and air may be sent out directly from the outlet port 14b of the fan device unit 14 to the compressor main body 19a of the compressor unit 19.
- the sound-absorbing member 13 is arranged in the recessed space S5 to reduce noise of the air compression device X1 caused by air passing through the recessed space S5. As shown in FIG. 9 , the sound-absorbing member 13 is attached to the swelling portion 122.
- the sound-absorbing member 13 has a peripheral edge portion 13a and a dividing portion 13b.
- the peripheral edge portion 13a is provided along an inner surface of the side portion 122a and along an inner surface of the facing portion 122b of the swelling portion 122.
- the dividing portion 13b is provided to extend from an upper end of the third part 122i to the upper extension portion 122c so as to divide the first recessed space S3 and the second recessed space S4.
- the peripheral edge portion 13a and the dividing portion 13b are arranged to be spaced from the fan device unit 14.
- air flowing into the second housing space S2 through the cooling air inflow port 10b rises to the first housing space S1 through the through hole 10e of the intermediate portion 10C according to suction of the inlet port 14a in the fan device unit 14.
- the air rising to the first housing space S1 flows into a passage F1 formed between the side surface 14c in the fan device unit 14 and the sound-absorbing member 13 attached to the side portion 122a to flow toward the facing portion 122b side of the swelling portion 122.
- the air goes around to the inlet port 14a while being bent in the sound-absorbing member 13 provided in the facing portion 122b and is sucked into the inlet port 14a.
- the air sent from the outlet port 14b in the fan device unit 14 is guided to the compressor unit 19 through the adaptor unit 15 to cool the compressor unit 19. Then, after cooling the compressor unit 19, the air is to flow to the outside of the housing 10 through the outflow port 10c formed in the rear portion 10E to flow into the protection cover 22b of the aftercooler 22.
- FIG. 12 is a front view of the air compression device X1 seen from the front portion 10D side of the housing 10, which view is seen through the panel member 12 of the panel unit 11 and shows a state where the cooling air filter portion 16 is detached from the housing 10.
- the first and second fan devices 14A and 14B further have wires 14e.
- Each wire 14e has an upper end leading to the upper end of each side surface 14c of the first and second fan devices 14A and 14B to extend downward from the side surface 14c.
- the wire 14e has the upper end leading to the side surface 14c to extend from the first housing space S1 to the second housing space S2 through the through hole 10e of the intermediate portion 10C as shown in FIG. 5 .
- the air compression device X1 further includes a wiring board unit 25 for supplying electric power to drive the fan device unit 14, and a connector unit 24 leading to a lower end of each wire 14e.
- the wiring board unit 25 is arranged closer to the front portion 10D than the motor unit 17 in the first housing space S1 as shown in FIG. 5 .
- the wiring board unit 25 has a rectangular shape extending in the vertical direction C1.
- the wiring board unit 25 includes a first wiring board 25A leading to the wires 14e in the first fan device 14A, and a second wiring board 25B leading to the wires 14e in the second fan device 14B.
- the first wiring board 25A and the second wiring board 25B are arranged in line in the second direction B1 and fixed to the intermediate portion 10C so as to hang from a lower surface of the intermediate portion 10C.
- the first wiring board 25A and the second wiring board 25B are exposed through the cooling air inflow port 10b, with the cooling air filter portion 16 being moved so as to open the cooling air inflow port 10b as shown in FIG. 8 .
- the connector unit 24 links each wire portion 14e and the first and second wiring boards 25A and 25B.
- the connector unit 24 has a first connector 24A attached to the lower end of the wire 14e in the first fan device 14A, and a second connector 24B attached to the lower end of the wire 14e in the second fan device 14B.
- the first connector 24A is located between the first wiring board 25A and the front portion 10D and is also connected to the first wiring board 25A. This results in electrically connecting the first fan device 14A and the first wiring board 25A.
- the second connector 24B is located between the second wiring board 25B and the front portion 10D and is also connected to the second wiring board 25B. This results in electrically connecting the second fan device 14B and the second wiring board 25B.
- the first connector 24A and the second connector 24B are exposed through the cooling air inflow port 10b as shown in FIG. 12 .
- the connector unit 24 can be detached from the wiring board unit 25 through the cooling air inflow port 10b.
- the cooling air inflow port 10b is opened.
- the connector unit 24 exposed through the cooling air inflow port 10b is detached from the wiring board unit 25 through the cooling air inflow port 10b.
- the attachment member 23 is detached which fixes the main body portion 121 of the panel member 12 in the panel unit 11 and the front portion 10D of the housing 10 to detach the panel member 12 from the housing 10.
- the sound-absorbing member 13, the fan device unit 14, and the adaptor unit 15 attached to the panel member 12, and the connector unit 24 attached to the wire 14e in the fan device unit 14 are to be both detached together with the panel member 12.
- the opening 10a is opened to enable maintenance of the compressor unit 19 exposed through the opening 10a.
- the fan device unit 14 for cooling the compressor unit 19 is attached to the panel member 12 which closes the opening 10a of the housing 10. Therefore, at the time of moving the panel member 12 so as to open the opening 10a, the fan device unit 14 is to move together with the panel member 12. Therefore, when conducting maintenance of the compressor unit 19 in the housing 10 through the opening 10a of the housing 10, the fan device unit 14 does not become a hindrance, so that the maintenance can be conducted with ease.
- the adaptor unit 15 since the adaptor unit 15 is attached to the fan device unit 14, the adaptor unit 15 does not become a hindrance either when conducting maintenance of the compressor unit 19 in the housing 10 through the opening 10a of the housing 10.
- the panel member 12 of the panel unit 11 is detachably attached to the housing 10, at the time of conducting maintenance of the compressor unit 19, detaching the panel member 12 from the housing 10 more facilitates the maintenance.
- the fan device unit 14 is arranged such that the inlet port 14a is located in the recessed space S5. Therefore, at the time of sucking air in the housing 10 by the inlet port 14a, an inner surface of the swelling portion 122 of the panel member 12 forming the recessed space S5 is to guide the air to go around toward the inlet port 14a. As a result, upstream of the inlet port 14a in an air flow direction, the flow direction is to bend. Accordingly, noise of the air compression device X1 can be reduced.
- the air compression device X1 it is not necessary to individually form the first recessed space S3 in which at least a part of the first fan device 14A is arranged and the second recessed space S4 in which at least a part of the second fan device 14B is arranged. Therefore, the entire recessed space S5 can be formed in a series of steps. As a result, process of the panel member 12 can be facilitated.
- the compressible air inflow port 121a is provided between the first fan device 14A and the second fan device 14B, while the first recessed space S3 and the second recessed space S4 continue with each other. Therefore, an increase in size of the air compression device X1 can be suppressed.
- the compressible air filter portion 26 prevents foreign matters from entering the inside of the housing 10 through the compressible air inflow port 121a. Besides, by detaching the compressible air filter portion 26 from the panel member 12, maintenance of the compressible air filter portion 26 can be conducted with ease.
- the fixing portion 26c for fixing the filter main body 26a to the panel member 12 falls within the range of the width of the filter main body 26a in the horizontal direction. Therefore, an interval between the first recessed space S3 and the second recessed space S4 in the horizontal direction can be set to be short. This realizes reduction in size of the air compression device X1 as a whole.
- the compressible air filter portion 26 can be detached from the panel member 12 and the guide path 20 with ease.
- the front portion 10D of the housing 10 is formed with the opening 10a covered with the panel member 12 and the cooling air inflow port 10b covered with the cooling air filter portion 16, and the cooling air filter portion 16 is attached to the housing 10 so as to be able to open or close the cooling air inflow port 10b. Therefore, moving the panel member 12 so as to open the opening 10a on the front portion 10D side of the housing 10 enables maintenance of the compressor unit 19. Additionally, moving the cooling air filter portion 16 so as to open the cooling air inflow port 10b also enables maintenance of the cooling air filter portion 16 on the front portion 10D side of the housing 10.
- connection work and connection releasing work of the connector unit 24 can be conducted through the cooling air inflow port 10b with ease.
- the panel member 12 can be detached from the housing 10 with ease by conducting the connection releasing work of the connector unit 24 through the cooling air inflow port 10b. This enables maintenance of the compressor unit 19 to be conducted through the opening 10a with ease.
- the panel member 12 has the main body portion 121, and the swelling portion 122 swelling from the main body portion 121, this is not always the case.
- the recessed space S5 may be formed.
- the panel member 12 may not necessarily have the swelling portion 122 and it is only necessary to have such a recessed space S5 which allows air to go around toward the inlet port 14a in the fan device unit 14.
- the recessed space S5 is dispensable, but the fan device unit 14 may be attached to the flat-plate-shaped panel member 12 so as to be spaced therefrom.
- the compressor unit 19 has the two compressors, the first compressor 19A and the second compressor 19B, this is not always the case.
- the number of compressors provided in the compressor unit 19 may be one, or three or more. In this case, according to the number of compressors provided in the compressor unit 19, the number of motors provided in the motor unit 17 and the number of fan devices provided in the fan device unit 14 are to be appropriately changed.
- the motor unit 17 and the compressor unit 19 may be arranged in line in the horizontal direction orthogonal to the vertical direction C1.
- the output shaft 171 in the motor unit 17 and the input shaft 19c in the compressor unit 19 are arranged on the same axis, so that the motor unit 17 and the compressor unit 19 are directly linked.
- the connector unit 24 and the wiring board unit 25 are housed in the second housing space S2 so as to be exposed through the cooling air inflow port 10b when the cooling air filter portion 16 is moved to open the cooling air inflow port 10b, this is not always the case.
- the connector unit 24 and the wiring board unit 25 may be housed in the first housing space S1 and also arranged closer to the front portion 10D than the compressor unit 19 in the first direction A1.
- the panel unit 11 and the connector unit 24 can be detached as a whole from the housing 10.
- arrangement of the connector unit 24 and the wiring board unit 25 is not particularly limited and can be appropriately changed according to a mode of use of the air compression device X1.
- the lower extension portion 122f in the swelling portion 122 has the third part 122i upwardly bending so as to avoid the compressible air inflow port 121a, so that the first recessed space S3 and the second recessed space S4 continue to each other so as to avoid the compressible air inflow port 121a, this is not always the case.
- the recessed space S5 configured with the first recessed space S3 and the second recessed space S4 may have a generally rectangular shape when viewed from the first direction A1, and the compressible air inflow port 121a may be formed outside the recessed space S5 having a generally rectangular shape.
- a positional relationship among the first recessed space S3, the second recessed space S4, and the compressible air inflow port 121a is not particularly limited, but can be appropriately changed according to a mode of use of the air compression device X1.
- the compressible air filter portion 26 and the guide path 20 are indirectly linked by the trim seal 27, the compressible air filter portion 26 and the guide path 20 may, not limited thereto, be directly linked.
- connection work and connection releasing work of the connector unit can be conducted through the cooling air inflow port with ease.
- the connection releasing work of the connector unit is conducted through the cooling air inflow port while moving the suction panel so as to open the cooling air inflow port.
- the fan device unit, the wire leading to the fan device unit, and the connector unit are moved integrally. This enables maintenance of the compressor unit to be conducted through the opening with ease.
- the embodiment provides an air compression device in which maintenance of a compressor unit can be conducted with ease.
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- Engineering & Computer Science (AREA)
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
- The present invention relates to an air compression device.
- An air compression device has been conventionally known which is mounted on a vehicle or the like to generate compressed air for use in the vehicle. As such an air compression device,
Patent Literature 1 describes an air compression device provided with a housing case, and a compressor unit and a compression drive portion housed in the housing case. In the air compression device ofPatent Literature 1, the compression drive portion is coupled to a compressor. By driving the compressor unit by the compression drive portion, compressed air for use in a vehicle is generated. - The air compression device of
Patent Literature 1 is further provided with a cooling fan for cooling the compressor unit. The cooling fan generates an air flow heading from the cooling fan to the compressor unit. Here, among surfaces of the housing case, on a surface located on the side opposite to the compressor unit with the cooling fan provided therebetween, a filter portion is provided which allows air to flow from the outside to the inside of the housing case. In the air compression device ofPatent Literature 1, air flowing into the housing case through the filter portion is guided to the compressor unit by the cooling fan. As a result, the compressor unit is cooled. - In the air compression device of
Patent Literature 1, in the housing case, the cooling fan is provided behind a surface on which the filter portion is provided and further behind the cooling fan, the compressor unit is provided. Therefore, when, for example, maintenance of the inside of the housing case is conducted from a side of a surface facing the cooling fan in the housing case, the cooling fan becomes a hindrance. This makes maintenance of the compressor unit difficult. - Patent Literature 1: Japanese Patent Unexamined Publication No.
2011-226285 JP-2006112353A - An object of the present invention is to provide an air compression device enabling maintenance of a compressor unit to be conducted with ease. The invention is defined by the appended claims.
- An air compression device according to one aspect of the present invention includes a housing which has a front portion with an opening formed and in which a compressor unit is housed; a fan device unit which generates an air flow that cools the compressor unit; and a panel member to which the fan device unit is attached, the panel member being attached to the housing so as to be able to open or close the opening of the housing.
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FIG. 1 is a schematic view of a railroad vehicle on which an air compression device according to a present embodiment is mounted, the view seen from the side. -
FIG. 2 is a schematic view of the railroad vehicle shown inFIG. 1 when seen from above, in which view, rails, cross ties, and the air compression device are illustrated with chain double-dashed lines. -
FIG. 3 is a perspective view showing a schematic configuration of the air compression device according to the present embodiment. -
FIG. 4 is a perspective view showing a schematic configuration of the air compression device according to the present embodiment, which is a view of the housing seen through a side portion thereof in a state where a panel unit and a cooling air filter portion are detached from the housing. -
FIG. 5 is a view of the inside of the housing in the air compression device according to the present embodiment seen from the side. -
FIG. 6 is a view of the inside of the housing in the air compression device according to the present embodiment seen from above, which is a view seen through insides of a first recessed space, a second recessed space, and a guide path. -
FIG. 7 is a front view of the air compression device according to the present embodiment seen from a front portion side of the housing. -
FIG. 8 is a front view of the air compression device according to the present embodiment seen from the front portion side of the housing, which is a view of a state where the panel unit and the cooling air filter are detached from the housing. -
FIG. 9 is a perspective view of the panel unit of the air compression device according to the present embodiment seen from the back. -
FIG. 10 is a perspective view of a compressible air filter portion of the air compression device according to the present embodiment seen from the side. -
FIG. 11 is a sectional view of a main part showing an attachment portion between the compressible air filter portion and a panel member in the air compression device according to the present embodiment. -
FIG. 12 is a front view of the air compression device according to the present embodiment seen from the front portion side of the housing, which view is seen through the panel member and shows a state where the cooling air filter portion is detached from the housing. - In the following, one embodiment of the present invention will be described with reference to the drawings. The respective figures to be referred to in the following are simplification of only main members among constituent members of an air compression device X1 according to a present embodiment for the purpose of illustration. Accordingly, the air compression device X1 according to the present embodiment can include an arbitrary constituent member not shown in each figure referred to in the present specification.
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FIG. 1 andFIG. 2 show arailroad vehicle 100 on which the air compression device X1 according to the present embodiment is mounted. Compressed air generated by the air compression device X1 is used for activating various kinds of pneumatic apparatuses such as a brake device, a door open-and-close device, and the like which are mounted on therailroad vehicle 100. The air compression device X1 may not be mounted on therailroad vehicle 100 but be mounted on an apparatus of other vehicle mounted with a pneumatic apparatus, or the like. - The
railroad vehicle 100 has afloor portion 100a, anupper wall portion 100b located above thefloor portion 100b, and a pair ofside wall portions floor portion 100a and theupper wall portion 100b. Additionally, therailroad vehicle 100 has wheels attached to thefloor portion 100a, and door portions attached to theside wall portions railroad vehicle 100 gets on therailroad vehicle 100 from a platform in a station through the door portion attached to theside wall portion 100c or theside wall portion 100d. Then, as shown inFIG. 2 , therailroad vehicle 100 travels on a track formed withcross ties 102 andrails 101 extending in a direction orthogonal to thecross ties 102, along therails 101. - The air compression device X1 is attached to the
floor portion 100a of therailroad vehicle 100 as shown inFIG. 1 . Specifically, the air compression device X1 is hung on a lower side of thefloor portion 100a via a hangingmember 200. - Next, in addition to
FIG. 1 andFIG. 2 , the air compression device X1 will be specifically described with reference toFIG. 3 to FIG. 6 .FIG. 3 is a perspective view showing a schematic configuration of the air compression device X1.FIG. 4 is a view showing a state where apanel unit 11 and a coolingair filter portion 16 to be described later are detached from the air compression device X1 shown inFIG. 3 .FIG. 5 is a view of the air compression device X1 seen from a second direction B1, which view is seen through a side portion of ahousing 10 to be described later.FIG. 6 is a view of an inside of thehousing 10 in the air compression device X1 seen from above, which is a view seen through insides of a first recessed space S3, a second recessed space S4, and aguide path 20 to be described later. - As shown in
FIG. 3 to FIG. 6 , the air compression device X1 mainly includes thehousing 10, amotor unit 17 and acompressor unit 19 housed in thehousing 10, and acontroller unit 18 arranged outside thehousing 10. In the air compression device X1, in conjunction with themotor unit 17 driven by thecontroller unit 18, thecompressor unit 19 is driven. As a result, air flowing into the compressor from the outside of thehousing 10 is compressed. - The
housing 10 houses various kinds of members such as themotor unit 17, thecompressor unit 19, and the like provided in the air compression device X1. Thehousing 10 has a generally hexahedral shape having anupper portion 10A and alower portion 10B facing to each other, afront portion 10D and arear portion 10E facing to each other, and one side portion and the other side portion facing to each other. Then, a space surrounded by theupper portion 10A, thelower portion 10B, thefront portion 10D, therear portion 10E, the one side portion, and the other side portion serves as a housing space which houses various kinds of members provided in the air compression device X1. - In the present embodiment, as shown in
FIG. 3 , a direction in which theupper portion 10A and thelower portion 10B face to each other is referred to as a vertical direction C1. Additionally, a direction in which thefront portion 10D and therear portion 10E face to each other is referred to as a first direction A1. Additionally, a direction orthogonal to the vertical direction C1 and the first direction A1 is referred to as the second direction B1. - In the present embodiment, the air compression device X1 is mounted to the
railroad vehicle 100 in a posture of having the first direction A1 extending along a direction in which thecross ties 102 extend and having the second direction B1 extending along a direction in which therails 101 extend as shown inFIG. 2 . The air compression device X1 is disposed on a lower surface of thefloor portion 100a of therailroad vehicle 100 in a posture of having theupper portion 10A facing to thefloor portion 100a, thefront portion 10D located on the side of theside wall portion 100c in the first direction A1, and therear portion 10E located at a position near the center in a car width direction. - As shown in
FIG. 4 , thehousing 10 has anintermediate portion 10C provided between theupper portion 10A and thelower portion 10B so as to divide an internal housing space of thehousing 10 into two. In the present embodiment, as shown inFIG. 4 andFIG. 5 , in the internal housing space of thehousing 10, a space formed between theupper portion 10A and theintermediate portion 10C serves as a first housing space S1 which houses thecompressor unit 19, and a space formed between theintermediate portion 10C and thelower portion 10B serves as a second housing space S2 which houses thecompressor unit 19. In other words, in the present embodiment, themotor unit 17 and thecompressor unit 19 are arranged so as to be deviated from each other in the vertical direction C1. This enables a reduction in a horizontally occupied area in the air compression device X1. - Although in the present embodiment, the
housing 10 has a generally hexahedral shape, the shape is not limited thereto. The shape of thehousing 10 is arbitrary and can be appropriately changed according to sizes, arrangement and the like of the various kinds of members housed in thehousing 10. - Additionally, the
intermediate portion 10C may not be provided. For example, by fixing thecompressor unit 19 to theupper portion 10A and also fixing themotor unit 17 to thelower portion 10B, thecompressor unit 19 and themotor unit 17 may be arranged so as to be deviated from each other in the vertical direction C1. - As shown in
FIG. 4 , themotor unit 17 is housed in the first housing space S1 inside thehousing 10. Themotor unit 17 has afirst motor 17A and asecond motor 17A. Thefirst motor 17A and thesecond motor 17A are arranged in line with each other in the second direction B1. Thefirst motor 17A and thesecond motor 17A have the same structure and arranged to be in a posture symmetrical to each other in the second direction B1. In the following, thefirst motor 17A will be described. - The
first motor 17A has anoutput shaft 171, a motormain body 172, and adrive pulley 173. - The
output shaft 171 extends along the second direction B1 and projects from the motormain body 172 to the one side portion of thehousing 10. Thedrive pulley 173 is attached to the projectingoutput shaft 171. This makes the motormain body 172 and thedrive pulley 173 be arranged in the second direction B1. - The
controller unit 18 is attached to therear portion 10E of thehousing 10 in the outside of thehousing 10. Thecontroller unit 18 has a box-shaped member, and a controller which is housed in the box-shaped member and controls drive of themotor unit 17. Each motormain body 172 of therespective motors controller unit 18. In thecontroller unit 18, various kinds of electronic parts may be housed other than the controller for controlling drive of themotor unit 17. - The
compressor unit 19 is housed in the second housing space S2 in thehousing 10 as shown inFIG. 4 . Specifically, thecompressor unit 19 is mounted on theintermediate portion 10C of thehousing 10. Thecompressor unit 19 has afirst compressor 19A and asecond compressor 19B. Thefirst compressor 19A and thesecond compressor 19B are arranged in line in the second direction B1. Thefirst compressor 19A is arranged above thefirst motor 17A, and thesecond compressor 19B is arranged above thesecond motor 17A. - The
first compressor 19A and thesecond compressor 19B have the same structure. Thefirst compressor 19A and thesecond compressor 19B are arranged symmetrically to each other in spaced relation so as to have suction ports thereof facing to each other in the second direction B1. In the following, thefirst compressor 19A will be described. - The
first compressor 19A has a compressormain body 19a, adrive pulley 19b, and aninput shaft 19c. - The
input shaft 19c extends in the second direction B1 to project from the compressormain body 19a to the one side portion of thehousing 10. Thedrive pulley 19b is attached to the projectedinput shaft 19c. This makes the compressormain body 19a and thedrive pulley 19b be arranged in line in the second direction B1. Thedrive pulley 19b of thefirst compressor 19A is arranged so as to overlap thedrive pulley 173 of thefirst motor 17A in the vertical direction C1. - As shown in
FIG 4 , an endless belt B is wound around thedrive pulley 19b of thefirst compressor 19A and thedrive pulley 173 of thefirst motor 17A. Specifically, theintermediate portion 10C of thehousing 10 has a through hole formed on the side portion side of thehousing 10, which through hole communicates the first housing space S1 to the second housing space S2. The communication through hole overlaps the drive pulleys 19b and 174 in the vertical direction C1. Then, the belt B is arranged to extend from the first housing space S1 to the second housing space S2 through the through hole, and is attached to the drive pulleys 19b and 174 in the housing spaces S1 and S2, respectively. To the compressormain body 19a of thefirst compressor 19A, driving force is transmitted via theinput shaft 19c by circulation of the belt B around the drive pulleys 19b and 174 along with drive of the motormain body 172 of thefirst motor 17A. As a result, the compressormain body 19a of thefirst compressor 19A is to generate compressed air. - As shown in
FIG. 5 andFIG. 7 , the air compression device X1 further includes aguide path 20 which guides air having flowed in from the outside of thehousing 10 to the compressormain body 19a, anoutflow pipe portion 21 through which compressed air generated in the compressormain body 19a flows out from the compressormain body 19a, and anaftercooler 22 which cools compressed air flowing through theoutflow pipe portion 21. - The
guide path 20 is housed in the first housing space S1 in thehousing 10. Specifically, theguide path 20, as shown inFIG. 6 , is arranged between thefirst compressor 19A and thesecond compressor 19B to extend along the first direction A1. Theguide path 20 has aninflow opening 20a allowing air to flow in, and afirst outflow opening 20b and asecond outflow opening 20c allowing the air to flow into the compressormain body 19a of the first andsecond compressors - The
inflow opening 20a is formed, in theguide path 20, on a surface facing to thefront portion 10D of thehousing 10. Air flowing in from the outside of thehousing 10 through a compressibleair inflow port 121a formed in apanel member 12 of thepanel unit 11 to be described later is to flow into theguide path 20 through theinflow opening 20a. - The
first outflow opening 20b is formed, in theguide path 20, on a surface facing to thefirst compressor 19A. Thefirst outflow opening 20b leads to the suction port in thefirst compressor 19A through a linkage pipe (not shown by a reference numeral). This causes air flowing into theguide path 20 to flow out from theguide path 20 through thefirst outflow opening 20b and flow into thefirst compressor 19A. - The
second outflow opening 20c is formed, in theguide path 20, on a surface facing to thesecond compressor 19B. The second outflow opening 20c leads to the suction port in thesecond compressor 19B through the linkage pipe (not shown by a reference numeral). This causes air flowing into theguide path 20 to flow out from theguide path 20 through thefirst outflow opening 20b and flow into thesecond compressor 19B. - The
outflow pipe portion 21 has afirst outflow pipe 21a leading to the compressormain body 19a of thefirst compressor 19A, asecond outflow pipe 21b leading to the compressormain body 19a of thesecond compressor 19B, amanifold portion 21c which links thefirst outflow pipe 21a and thesecond outflow pipe 21b, and aconfluence pipe 21d through which compressed air joined in themanifold portion 21c flows. - As shown in
FIG. 4 , thefirst outflow pipe 21a is connected to a surface of thefirst compressor 19A facing to thesecond compressor 19B, extends along the first direction A1 toward thefront portion 10D side, and bends upward in the vicinity of thefront portion 100 to extend to theupper portion 10A side along the vertical direction C1. Air flowing into a suction port of the compressormain body 19a in thefirst compressor 19A through theguide path 20 is compressed in the compressormain body 19a to flow out through thefirst outflow pipe 21a. - As shown in
FIG. 4 , thesecond outflow pipe 21b is connected to a surface of thesecond compressor 19B facing to thefirst compressor 19A, extends along the first direction A1 toward thefront portion 10D side, and bends upward in the vicinity of thefront portion 10D to extend to theupper portion 10A side along the vertical direction C1. Air flowing into the suction port of the compressormain body 19a in thesecond compressor 19B through theguide path 20 is compressed in the compressormain body 19a to flow out through thesecond outflow pipe 21b. - The
manifold portion 21c is attached to theupper portion 10A of thehousing 10 as shown inFIG. 4 andFIG. 5 . Specifically, themanifold portion 21c is housed in the first housing space S1 in thehousing 10 and is attached to thefront portion 10D side, in theupper portion 10A, between thefirst compressor 19A and thesecond compressor 19B. The first andsecond outflow pipes manifold portion 21c, so that in themanifold portion 21c, compressed air flowing through thefirst outflow pipe 21a and compressed air flowing through thesecond outflow pipe 21b join. - As shown in
FIG. 5 , theconfluence pipe 21d is connected to themanifold portion 21c to extend from thefront portion 10D side of thehousing 10 to therear portion 10E side along theupper portion 10A of thehousing 10. Compressed air having joined in themanifold portion 21c is to flow into theconfluence pipe 21d to flow from thefront portion 10D side of thehousing 10 to therear portion 10E side. - As shown in
FIG. 5 , in a part of therear portion 10E surrounding the first housing space S1 in thehousing 10, anoutflow port 10c is formed which communicates the first housing space S1 with the outside of thehousing 10. Specifically, theoutflow port 10c is formed in a part of therear portion 10E on theupper portion 10A side. Theconfluence pipe 21d extends from thefront portion 10D side to therear portion 10E side and also extends to the outside of thehousing 10 through theoutflow port 10c formed in therear portion 10E. - The
aftercooler 22 is attached to therear portion 10E of thehousing 10 in the outside of thehousing 10. Theaftercooler 22 is arranged above thecontroller unit 18. Theaftercooler 22 has ameandering pipe 22a, aprotection cover 22b which houses themeandering pipe 22a, and acooler fan 22c which sends air outside thehousing 10 to the inside of theprotection cover 22b. - The
protection cover 22b is arranged outside thehousing 10 and back and above therear portion 10E. A part of theprotection cover 22b located back of therear portion 10E is separated from therear portion 10E. The meanderingpipe 22a extends in theprotection cover 22b while meandering in the second direction B1. Theconfluence pipe 21d externally extending from the inside of thehousing 10 leads to themeandering pipe 22a. Compressed air flowing through the confluence pipe flows into the meanderingpipe 22a. Thecooler fan 22c is arranged between therear portion 10E and theprotection cover 22b below theoutflow port 10c. Thecooler fan 22c sucks air outside thehousing 10 and sends the same toward the meanderingpipe 22a in theprotection cover 22b. - As shown in
FIG. 4 andFIG. 5 , in thefront portion 10D of thehousing 10, there are formed a coolingair inflow port 10b through which cooling air flows into thehousing 10, and anopening 10a for the maintenance of the inside of thehousing 10. Then, as shown inFIG. 3 andFIG. 5 , the air compression device X1 further includes the coolingair filter portion 16 attached to thehousing 10 so as to be able to open or close the coolingair inflow port 10b, and thepanel unit 11 attached to thehousing 10 so as to be able to open or close theopening 10a. - In the following, in addition to
FIG. 1 to FIG. 6 , the coolingair filter portion 16 and thepanel unit 11 will be described in detail with reference toFIG. 7 to FIG. 9 .FIG. 7 is a front view of the air compression device X1 seen from thefront portion 10D side of thehousing 10. Additionally,FIG. 8 is a front view showing a state where in the air compression device XI inFIG. 7 , the coolingair filter portion 16 and thepanel unit 11 are detached from thehousing 10. Additionally,FIG. 9 is a perspective view of thepanel unit 11 seen from the back, which view shows a state where a compressibleair filter portion 26 to be described later is detached. - The cooling
air inflow port 10b is formed for cooling various kinds of members inside thehousing 10 by causing cooling air to flow into thehousing 10. The coolingair inflow port 10b is formed in thefront portion 10D of thehousing 10. Specifically, thefront portion 10D of thehousing 10 has abeam portion 10d to which theintermediate portion 10C is fixed as shown inFIG. 4 . Thebeam portion 10d extends along the second direction B1. The coolingair inflow port 10b is formed between thebeam portion 10d and thelower portion 10B and has a generally rectangular shape. This allows the coolingair inflow port 10b to communicate the outside of thehousing 10 to the second housing space S2 in thehousing 10. - The cooling
air filter portion 16 is attached to thefront portion 10D of thehousing 10 so as to cover the coolingair inflow port 10b. The coolingair filter portion 16 has alouver 161 including a plurality of elongated plate-shaped members assembled to be spaced apart from each other and in parallel to each other, and afilter portion 162 attached to a back surface of thelouver 161 as shown inFIG. 3 . Thelouver 161 is attached to thefront portion 10D of thehousing 10 such that thefilter portion 162 is fitted in the coolingair inflow port 10b. - To the
louver 161, ahinge 161a and alever lock 161b are attached as shown inFIG. 3 andFIG. 7 . Thehinge 161a fixes an upper end portion of thelouver 161 in the vertical direction C1 to thebeam portion 10d in thefront portion 10D of thehousing 10. Thelever lock 161b detachably fixes a lower end portion of thelouver 161 in the vertical direction C1 and thefront portion 10D of thehousing 10. - In the air compression device X1, with the
lever lock 161b being fastened, the coolingair filter portion 16 closes, ahead of thefront portion 10D of thehousing 10, the coolingair inflow port 10b as shown inFIG. 7 . On the other hand, by opening thelever lock 161b and causing the coolingair filter portion 16 to turn with thehinge 161a as a turning center, the coolingair inflow port 10b formed in thefront portion 10D is opened as shown inFIG. 8 . Then, from the coolingair inflow port 10b, themotor unit 17 housed in the second housing space S2 is exposed. - Although in the present embodiment, the cooling
air filter portion 16 is fixed to thefront portion 10D of thehousing 10 by thehinge 161a and thelever lock 161b, this is not always the case. For example, the coolingair filter portion 16 may be attached to thehousing 10 via a fastening member such as a bolt or the like. Also in this case, the coolingair filter portion 16 is detachable from thehousing 10, so that attachment or detachment of the fastening member such as a bolt or the like enables the coolingair inflow port 10b to be opened or closed. - As shown in
FIG. 7 , with the coolingair inflow port 10b being closed by the coolingair filter portion 16, air passing through thelouver 161 has dusts removed in thefilter portion 162. Then, the air from which dusts have been removed flows into the second housing space S2 of thehousing 10 through the coolingair inflow port 10b. - Here, as shown in
FIG. 4 andFIG. 5 , on thefront portion 10D side of theintermediate portion 10C, a throughhole 10e is formed which passes through theintermediate portion 10C in the vertical direction C1. The throughhole 10e is formed closer to thefront portion 10D side than thecompressor unit 19 and themotor unit 17. In the present embodiment, the throughhole 10e has a rectangular shape extending from ahead of thefirst motor 17A to ahead of thesecond motor 17B. The throughhole 10e communicates the first housing space S1 to the second housing space S2. Therefore, air flowing into the second housing space S2 in thehousing 10 through the coolingair inflow port 10b can be moved to the first housing space S1 through the throughhole 10e before reaching themotor unit 17. - Since in the present embodiment, in the
intermediate portion 10C, a part on the side portion side of thehousing 10 has the through hole formed through which the belt B passes, air flowing into the second housing space S2 is also allowed to move to the first housing space S1 through the through hole. - The
opening 10a is formed for the maintenance of thecompressor unit 19 and the like housed in thehousing 10. Theopening 10a is formed in thefront portion 10D of thehousing 10. Specifically, theopening 10a is formed between thebeam portion 10d and theupper portion 10A and has a generally rectangular shape. This enables theopening 10a to communicate the outside of thehousing 10 to the first housing space S1 in thehousing 10. In the present embodiment, theopening 10a is located above the coolingair inflow port 10b. - The
panel unit 11 is attached to thefront portion 10D of thehousing 10 so as to cover theopening 10a. Thepanel unit 11 has thepanel member 12, a sound-absorbingmember 13, afan device unit 14, anadaptor unit 15, and the compressibleair filter portion 26 as shown inFIG. 3 ,FIG. 5 ,FIG. 7 , andFIG. 9 . - The
panel member 12 is attached to thehousing 10 so as to be able to open or close theopening 10a. Thepanel member 12 has amain body portion 121, a swellingportion 122 which swells ahead of themain body portion 121 in a direction orthogonal to themain body portion 121, and a fixingplate 123 extending behind themain body portion 121 in the direction orthogonal to themain body portion 121. - The
main body portion 121 is a flat plate along thefront portion 10D of thehousing 10 and has a generally rectangular shape. Themain body portion 121 is attached to thefront portion 10D of thehousing 10 so as to cover theopening 10a with theentire panel member 12. Specifically, a plurality ofinsertion holes 121b is formed in an outer circumference portion of themain body portion 121 as shown inFIG. 7 . Eachinsertion hole 121b overlaps a fastening hole formed in thefront portion 10D of thehousing 10. Then, a bolt-shapedattachment member 23 is inserted into eachinsertion hole 121b and each fastening hole of thefront portion 10D, and theattachment member 23 fixes themain body portion 121 and thefront portion 10D of thehousing 10. In other words, thepanel member 12 is detachably attached to thehousing 10 by theattachment member 23. - In the air compression device X1, as shown in
FIG. 7 , in a state where themain body portion 121 of thepanel member 12 is attached to thefront portion 10D of thehousing 10 by theattachment member 23, thepanel unit 11 closes, ahead of thefront portion 10D of thehousing 10, theopening 10a. On the other hand, as shown inFIG. 8 , in a state where thepanel unit 11 is detached from thefront portion 10D of thehousing 10 by detaching theattachment member 23, theopening 10a formed in thefront portion 10D is opened . Then, from theopening 10a, thecompressor unit 19 housed in the second housing space S2 is exposed. - Although in the present embodiment, the
main body portion 121 of thepanel member 12 is fixed to thefront portion 10D by the bolt-shapedattachment member 23, this is not always the case. Themain body portion 121 of thepanel member 12 may be fixed to, for example, thefront portion 10D of thehousing 10 by the hinge portion and the lever lock similarly to the coolingair filter portion 16. In this case, thepanel unit 11 is allowed to open or close theopening 10a by releasing or fastening the lever lock. - The
main body portion 121 has the compressibleair inflow port 121a formed for allowing air to be compressed in thecompressor unit 19 to flow from the outside of thehousing 10 to the inside thereof. The compressibleair inflow port 121a is formed in a middle portion of themain body portion 121 in the second direction B1 as shown inFIG. 7 . In the present embodiment, the compressibleair inflow port 121a has a generally circular shape. The compressibleair inflow port 121a is located between afirst fan device 14A and asecond fan device 14B to be described later so as to face to theinflow opening 20a of theguide path 20. - The swelling
portion 122 is formed as a part of an inner surface of thepanel member 12 recessed toward an outer surface side of thepanel member 12. In other words, the swellingportion 122 is integrally configured with themain body portion 121 in thepanel member 12. In the present embodiment, the swellingportion 122 is located so as to be surrounded by themain body portion 121 as shown inFIG. 7 . - The swelling
portion 122 has a facingportion 122b, and aside portion 122a linked with the facingportion 122b as shown inFIG. 3 ,FIG. 5 , andFIG. 9 . - The facing
portion 122b is a part which extends in a plane direction similarly to themain body portion 121, and is located ahead of themain body portion 121. Specifically, with thepanel member 12 closing theopening 10a, the facingportion 122b is located on the side opposite to thecompressor unit 19 with themain body portion 121 provided therebetween in the second direction B1. - The
side portion 122a is a part extending in the direction orthogonal to themain body portion 121 so as to link the facingportion 122b and themain body portion 121. In the present embodiment, theside portion 122a is located to extend from the outside to the inside of themain body portion 121 in the direction orthogonal to themain body portion 121. - The
side portion 122a has anupper extension portion 122c,side extension portions lower extension portion 122f as shown inFIG. 3 andFIG. 7 . - The
upper extension portion 122c leads to an upper end of the facingportion 122b, as well as extending horizontally. Both of theside extension portions portion 122b, as well as extending generally vertically. Thelower extension portion 122f leads to a lower end of the facingportion 122b, as well as extending from a lower end of theside extension portion 122d to a lower end of theside extension portion 122e. Specifically, thelower extension portion 122f has afirst part 122g extending inwardly from the lower end of theside extension portion 122d in the horizontal direction, asecond part 122h extending inwardly from the lower end of theside extension portion 122e in the horizontal direction, and athird part 122i linking thefirst part 122g and thesecond part 122h while bending upward so as to avoid the compressibleair inflow port 121a of themain body portion 121. Then, theseupper extension portion 122c,side extension portions lower extension portion 122f continue to form a closed loop. - Thus, the swelling
portion 122 is provided such that a part of the inner surface of thepanel member 12 is recessed toward the outer surface side, thereby forming one recessed space S5 surrounded by the facingportion 122b and theside portion 122a of the swellingportion 122. This recessed space S5 communicates with the first housing space S1 in thehousing 10, with thepanel unit 11 being at a position to close theopening 10a. - The fixing
plate 123 is a plate-shaped member for fixing the compressibleair filter portion 26 to thepanel member 12. The fixingplate 123 is located below the compressibleair inflow port 121a to extend from an inner surface of themain body portion 121 toward the rear of themain body portion 121 as shown inFIG. 9 . In the present embodiment, the fixingplate 123 falls within a range of a width of the compressibleair inflow port 121a in the horizontal direction. Additionally, the fixingplate 123 has twoinsertion holes 123a formed which pass through the fixingplate 123. The twoinsertion holes 123a are located to be horizontally spaced apart from each other. - Here,
FIG. 10 is a perspective view of a schematic configuration of the compressibleair filter portion 26. As shown inFIG. 10 , the compressibleair filter portion 26 has a filtermain body 26a, aninsertion portion 26b provided at an rear end of the filtermain body 26a, and a fixingportion 26c projecting in a radial direction from a middle portion of the filtermain body 26a in a direction in which theguide path 20 extends. - The filter
main body 26a is a filter which removes dusts and the like from air to be compressed which flows into thehousing 10 through the compressibleair inflow port 121a. In the present embodiment, the filtermain body 26a has a cylindrical exterior. - The
insertion portion 26b is a part of the compressibleair filter portion 26, the part which is inserted into theinflow opening 20a of theguide path 20. Theinsertion portion 26b extends further backward from the rear end of the filtermain body 26a in an axis direction and has an outer diameter smaller than that of the filtermain body 26a. - The fixing
portion 26c is a part for fixing the compressibleair filter portion 26 to themain body portion 121 of thepanel member 12. The fixingportion 26c projects from an outer surface of the filtermain body 26a to the outside of the filtermain body 26a in the radial direction. In the present embodiment, an outermost surface of the fixingportion 26c in the radial direction of the filtermain body 26a has a flat rectangular shape. - To the outermost surface of the fixing
portion 26c, two fitting-inbolts 26d are attached. The two fitting-inbolts 26d are separated with a space provided therebetween in a longitudinal direction (a direction orthogonal to an axis direction of the compressible air filter portion 26) of the outermost surface of the fixingportion 26c. - The compressible
air filter portion 26 is detachably attached to thepanel member 12. - Specifically, in a state where the compressible
air filter portion 26 is attached to thepanel member 12, the filtermain body 26a of the compressibleair filter portion 26 is fitted in the compressibleair inflow port 121a so as to have the fixingportion 26c facing down as shown inFIG. 11 . Specifically, the filtermain body 26a is inserted into the compressibleair inflow port 121a from thefront portion 10D side to therear portion 10E side so as to have a part thereof in the axis direction located ahead of themain body portion 121 and have a reminder thereof in the axis direction located behind themain body portion 121. In this state, the fixingportion 26c falls within a range of a width of the filtermain body 26a in a horizontal direction. In this state, in the first direction A1, the fixingportion 26c is arranged in a posture of overlapping the inner surface of themain body portion 121. Then, the fitting-inbolts 26d and 26e attached to the fixingportion 26c are inserted into theinsertion hole 123a of the fixingplate 123. As a result, the fixingportion 26c is fixed to the fixingplate 123, and the compressibleair filter portion 26 is attached to thepanel member 12. - In this state, the
insertion portion 26b inserted into theinflow opening 20a is attached to theguide path 20 via atrim seal 27 arranged inside an edge portion of theguide path 20 forming theinflow opening 20a. In other words, thetrim seal 27 links theinsertion portion 26b of the compressibleair filter portion 26 and theguide path 20. This results in causing air flowing into the filtermain body 26a from the outside of thehousing 10 to flow into theguide path 20 through theinsertion portion 26b. Thetrim seal 27 has such an extent of elasticity which enables an error in attachment of theinsertion portion 26b to theguide path 20 to be absorbed. - On the other hand, at the time of detaching the compressible
air filter portion 26 from thepanel member 12, by upwardly pushing a lower end of the filtermain body 26a exposed ahead of themain body portion 121, the fixingportion 26c is moved upward in the state shown inFIG. 11 . By this operation, the fitting-inbolt 26d is detached from theinsertion hole 123a to pull out the entire compressibleair filter portion 26 from the compressibleair inflow port 121a. Thus, the compressibleair filter portion 26 is detached from thepanel member 12. - The
fan device unit 14 generates an air flow which cools thecompressor unit 19. Specifically, thefan device unit 14 sends the air flowing into thehousing 10 from the coolingair inflow port 10b toward thecompressor unit 19. - The
fan device unit 14 has thefirst fan device 14A which generates an air flow that cools thefirst compressor 19A, and thesecond fan device 14B which generates an air flow that cools thesecond compressor 19B. As shown inFIG. 9 , in the recessed space S5, a part of thefirst fan device 14A is arranged in the first recessed space S3 surrounded mainly by theupper extension portion 122c, theside extension portion 122d, and thefirst part 122g. Additionally, in the recessed space S5, a part of thesecond fan device 14B is arranged in the second recessed space S4 surrounded mainly by theupper extension portion 122c, theside extension portion 122e, and thesecond part 122h. In the present embodiment, the recessed space S5 is a continuous space in which the first recessed space S3 and the second recessed space S4 continue to each other so as to avoid the compressibleair inflow port 121a above the compressibleair inflow port 121a. The first recessed space S3 and the second recessed space S4 may be divided. - The
first fan device 14A and thesecond fan device 14B have the same structure. In the following, thefirst fan device 14A will be described. - The
first fan device 14A is configured with two axial fans which are arranged to overlap with each other in a direction orthogonal to the facingportion 122b. The number of axial fans configuring thefirst fan device 14A may be one, or three or more. - The
first fan device 14A has aninlet port 14a which sucks air flowing into thehousing 10 from the coolingair inflow port 10b, anoutlet port 14b located on the side opposite to theinlet port 14a to send out air sucked from theinlet port 14a, and anattachment portion 14d for attaching thefirst fan device 14A to thepanel member 12. Thefirst fan device 14A is configured to have an impeller arranged inside the tubularly-formedside surface 14c. Then, theinlet port 14a is formed with an opening at one end side on the tubularly-formedside surface 14c, and theoutlet port 14b is formed with an opening at the other end on theside surface 14c. - As shown in
FIG. 5 , thefirst fan device 14A is arranged in a posture of having theinlet port 14a facing to the facingportion 122b forming the first recessed space S3 so as to be spaced therefrom, and having theoutlet port 14b facing to thefirst compressor 19A side. Specifically, thefirst fan device 14A is arranged to extend from the first recessed space S3 to the first housing space S1 such that theinlet port 14a is located in the first recessed space S3. More specifically, an end portion of theside surface 14c on a side where theinlet port 14a is provided in thefirst fan device 14A is arranged on a side closer to the facingportion 122b than an end portion of theside portion 122a on thefirst compressor 19A side. As a result, a part of theside surface 14c of thefirst fan device 14A faces to theside portion 122a forming the first recessed space S3 so as to be spaced therefrom. - The
attachment portion 14d of thefirst fan device 14A extends from theside surface 14c of thefirst fan device 14A in a radial direction of thefirst fan device 14A. Then, theattachment portion 14d of thefirst fan device 14A is fixed to thepanel member 12 via a bolt. In other words, thefan device unit 14 is attached to thepanel member 12. Thefirst fan device 14A may be located as a whole in the first recessed space S3. - Although detailed description of the
second fan device 14B will be omitted, similarly to thefirst fan device 14A, theinlet port 14a is arranged in the second recessed space S4, while a part of theside surface 14c is arranged to face to theside portion 122a with a space provided therebetween, the side portion forming the second recessed space S4. - The
adaptor unit 15 guides air sent from theoutlet port 14b in thefan device unit 14 to thecompressor unit 19. Theadaptor unit 15 has afirst adaptor 15A fixed to theoutlet port 14b side of thefirst fan device 14A, and asecond adaptor 15B fixed to theoutlet port 14b of thesecond fan device 14B. Thefirst adaptor 15A is arranged between theoutlet port 14b of thefirst fan device 14A and thefirst compressor 19A. Thesecond adaptor 15B is arranged between the outlet port of thesecond fan device 14B and thesecond compressor 19B. Thefirst adaptor 15A and thesecond adaptor 15B have the same structure. In the following, thefirst adaptor 15A will be described. - The
first adaptor 15A has a plate-formed member with a rectangular shape. Thefirst adaptor 15A is formed with a through hole passing through thefirst adaptor 15A in the first direction A1. On thefirst fan device 14A side, the through hole has a shape corresponding to a shape of theoutlet port 14b and on thefirst compressor 19A side, has a shape corresponding to an outer shape of thefirst compressor 19A. - The
adaptor unit 15 is dispensable, and air may be sent out directly from theoutlet port 14b of thefan device unit 14 to the compressormain body 19a of thecompressor unit 19. - The sound-absorbing
member 13 is arranged in the recessed space S5 to reduce noise of the air compression device X1 caused by air passing through the recessed space S5. As shown inFIG. 9 , the sound-absorbingmember 13 is attached to the swellingportion 122. The sound-absorbingmember 13 has aperipheral edge portion 13a and a dividingportion 13b. Theperipheral edge portion 13a is provided along an inner surface of theside portion 122a and along an inner surface of the facingportion 122b of the swellingportion 122. The dividingportion 13b is provided to extend from an upper end of thethird part 122i to theupper extension portion 122c so as to divide the first recessed space S3 and the second recessed space S4. Theperipheral edge portion 13a and the dividingportion 13b are arranged to be spaced from thefan device unit 14. - In the air compression device X1, air flowing into the second housing space S2 through the cooling
air inflow port 10b rises to the first housing space S1 through the throughhole 10e of theintermediate portion 10C according to suction of theinlet port 14a in thefan device unit 14. Then, the air rising to the first housing space S1 flows into a passage F1 formed between theside surface 14c in thefan device unit 14 and the sound-absorbingmember 13 attached to theside portion 122a to flow toward the facingportion 122b side of the swellingportion 122. Then, the air goes around to theinlet port 14a while being bent in the sound-absorbingmember 13 provided in the facingportion 122b and is sucked into theinlet port 14a. Thereafter, the air sent from theoutlet port 14b in thefan device unit 14 is guided to thecompressor unit 19 through theadaptor unit 15 to cool thecompressor unit 19. Then, after cooling thecompressor unit 19, the air is to flow to the outside of thehousing 10 through theoutflow port 10c formed in therear portion 10E to flow into theprotection cover 22b of theaftercooler 22. -
FIG. 12 is a front view of the air compression device X1 seen from thefront portion 10D side of thehousing 10, which view is seen through thepanel member 12 of thepanel unit 11 and shows a state where the coolingair filter portion 16 is detached from thehousing 10. - As shown in
FIG. 12 , the first andsecond fan devices wires 14e. Eachwire 14e has an upper end leading to the upper end of eachside surface 14c of the first andsecond fan devices side surface 14c. Specifically, thewire 14e has the upper end leading to theside surface 14c to extend from the first housing space S1 to the second housing space S2 through the throughhole 10e of theintermediate portion 10C as shown inFIG. 5 . - Further, as shown in
FIG. 12 , the air compression device X1 further includes awiring board unit 25 for supplying electric power to drive thefan device unit 14, and aconnector unit 24 leading to a lower end of eachwire 14e. - The
wiring board unit 25 is arranged closer to thefront portion 10D than themotor unit 17 in the first housing space S1 as shown inFIG. 5 . In the present embodiment, thewiring board unit 25 has a rectangular shape extending in the vertical direction C1. As shown inFIG. 12 , thewiring board unit 25 includes afirst wiring board 25A leading to thewires 14e in thefirst fan device 14A, and asecond wiring board 25B leading to thewires 14e in thesecond fan device 14B. Thefirst wiring board 25A and thesecond wiring board 25B are arranged in line in the second direction B1 and fixed to theintermediate portion 10C so as to hang from a lower surface of theintermediate portion 10C. Thefirst wiring board 25A and thesecond wiring board 25B are exposed through the coolingair inflow port 10b, with the coolingair filter portion 16 being moved so as to open the coolingair inflow port 10b as shown inFIG. 8 . - As shown in
FIG. 12 , theconnector unit 24 links eachwire portion 14e and the first andsecond wiring boards connector unit 24 has afirst connector 24A attached to the lower end of thewire 14e in thefirst fan device 14A, and asecond connector 24B attached to the lower end of thewire 14e in thesecond fan device 14B. - The
first connector 24A is located between thefirst wiring board 25A and thefront portion 10D and is also connected to thefirst wiring board 25A. This results in electrically connecting thefirst fan device 14A and thefirst wiring board 25A. Additionally, thesecond connector 24B is located between thesecond wiring board 25B and thefront portion 10D and is also connected to thesecond wiring board 25B. This results in electrically connecting thesecond fan device 14B and thesecond wiring board 25B. - When moving the cooling
air filter portion 16 so as to open the coolingair inflow port 10b, thefirst connector 24A and thesecond connector 24B are exposed through the coolingair inflow port 10b as shown inFIG. 12 . In other words, with the coolingair filter portion 16 being moved so as to open the coolingair inflow port 10b, theconnector unit 24 can be detached from thewiring board unit 25 through the coolingair inflow port 10b. - In the air compression device X1, when opening the
opening 10a in order to conduct maintenance of thecompressor unit 19, first, by operating thelever lock 161b to open, as well as upwardly turning the coolingair filter portion 16 around thehinge 161a, the coolingair inflow port 10b is opened. Next, as shown inFIG. 12 , theconnector unit 24 exposed through the coolingair inflow port 10b is detached from thewiring board unit 25 through the coolingair inflow port 10b. In this state, theattachment member 23 is detached which fixes themain body portion 121 of thepanel member 12 in thepanel unit 11 and thefront portion 10D of thehousing 10 to detach thepanel member 12 from thehousing 10. On this occasion, the sound-absorbingmember 13, thefan device unit 14, and theadaptor unit 15 attached to thepanel member 12, and theconnector unit 24 attached to thewire 14e in thefan device unit 14 are to be both detached together with thepanel member 12. As a result, as shown inFIG. 8 , theopening 10a is opened to enable maintenance of thecompressor unit 19 exposed through theopening 10a. - In the above-described air compression device X1, the
fan device unit 14 for cooling thecompressor unit 19 is attached to thepanel member 12 which closes theopening 10a of thehousing 10. Therefore, at the time of moving thepanel member 12 so as to open theopening 10a, thefan device unit 14 is to move together with thepanel member 12. Therefore, when conducting maintenance of thecompressor unit 19 in thehousing 10 through theopening 10a of thehousing 10, thefan device unit 14 does not become a hindrance, so that the maintenance can be conducted with ease. - Further, in the air compression device X1, since the
adaptor unit 15 is attached to thefan device unit 14, theadaptor unit 15 does not become a hindrance either when conducting maintenance of thecompressor unit 19 in thehousing 10 through theopening 10a of thehousing 10. - Further, in the air compression device X1, since the
panel member 12 of thepanel unit 11 is detachably attached to thehousing 10, at the time of conducting maintenance of thecompressor unit 19, detaching thepanel member 12 from thehousing 10 more facilitates the maintenance. - Further, in the air compression device X1, with the recessed space S5 formed in the
panel member 12, thefan device unit 14 is arranged such that theinlet port 14a is located in the recessed space S5. Therefore, at the time of sucking air in thehousing 10 by theinlet port 14a, an inner surface of the swellingportion 122 of thepanel member 12 forming the recessed space S5 is to guide the air to go around toward theinlet port 14a. As a result, upstream of theinlet port 14a in an air flow direction, the flow direction is to bend. Accordingly, noise of the air compression device X1 can be reduced. - Further, in the air compression device X1, it is not necessary to individually form the first recessed space S3 in which at least a part of the
first fan device 14A is arranged and the second recessed space S4 in which at least a part of thesecond fan device 14B is arranged. Therefore, the entire recessed space S5 can be formed in a series of steps. As a result, process of thepanel member 12 can be facilitated. - Further, in the air compression device X1, the compressible
air inflow port 121a is provided between thefirst fan device 14A and thesecond fan device 14B, while the first recessed space S3 and the second recessed space S4 continue with each other. Therefore, an increase in size of the air compression device X1 can be suppressed. - Further, in the air compression device X1, the compressible
air filter portion 26 prevents foreign matters from entering the inside of thehousing 10 through the compressibleair inflow port 121a. Besides, by detaching the compressibleair filter portion 26 from thepanel member 12, maintenance of the compressibleair filter portion 26 can be conducted with ease. - Further, in the air compression device X1, the fixing
portion 26c for fixing the filtermain body 26a to thepanel member 12 falls within the range of the width of the filtermain body 26a in the horizontal direction. Therefore, an interval between the first recessed space S3 and the second recessed space S4 in the horizontal direction can be set to be short. This realizes reduction in size of the air compression device X1 as a whole. - Further, in the air compression device X1, since the filter
main body 26a and theguide path 20 are linked via thetrim seal 27, the compressibleair filter portion 26 can be detached from thepanel member 12 and theguide path 20 with ease. - Further, in the air compression device X1, the
front portion 10D of thehousing 10 is formed with theopening 10a covered with thepanel member 12 and the coolingair inflow port 10b covered with the coolingair filter portion 16, and the coolingair filter portion 16 is attached to thehousing 10 so as to be able to open or close the coolingair inflow port 10b. Therefore, moving thepanel member 12 so as to open theopening 10a on thefront portion 10D side of thehousing 10 enables maintenance of thecompressor unit 19. Additionally, moving the coolingair filter portion 16 so as to open the coolingair inflow port 10b also enables maintenance of the coolingair filter portion 16 on thefront portion 10D side of thehousing 10. - Further, in the air compression device X1, when the cooling
air filter portion 16 is moved so as to open the coolingair inflow port 10b, theconnector unit 24 is exposed through the coolingair inflow port 10b. Therefore, connection work and connection releasing work of theconnector unit 24 can be conducted through the coolingair inflow port 10b with ease. Specifically, when conducting maintenance of thecompressor unit 19 in the air compression device X1, thepanel member 12 can be detached from thehousing 10 with ease by conducting the connection releasing work of theconnector unit 24 through the coolingair inflow port 10b. This enables maintenance of thecompressor unit 19 to be conducted through theopening 10a with ease. - Although in the present embodiment, the
panel member 12 has themain body portion 121, and the swellingportion 122 swelling from themain body portion 121, this is not always the case. For example, by forming thepanel member 12 to have a flat-plate-shape as a whole and forming the outer surface of thepanel member 12 to be flat, while forming a part of the inner surface thereof to be recessed to the outer surface side, the recessed space S5 may be formed. In other words, thepanel member 12 may not necessarily have the swellingportion 122 and it is only necessary to have such a recessed space S5 which allows air to go around toward theinlet port 14a in thefan device unit 14. Additionally, the recessed space S5 is dispensable, but thefan device unit 14 may be attached to the flat-plate-shapedpanel member 12 so as to be spaced therefrom. - Additionally, although in the present embodiment, the
compressor unit 19 has the two compressors, thefirst compressor 19A and thesecond compressor 19B, this is not always the case. The number of compressors provided in thecompressor unit 19 may be one, or three or more. In this case, according to the number of compressors provided in thecompressor unit 19, the number of motors provided in themotor unit 17 and the number of fan devices provided in thefan device unit 14 are to be appropriately changed. - Additionally, although in the present embodiment, providing the
housing 10 with theintermediate portion 10C and forming the first housing space S1 and the second housing space S2 with theintermediate portion 10C provided therebetween result in arranging themotor unit 17 and thecompressor unit 19 to be deviated from each other in the vertical direction C1, this is not always the case. For example, themotor unit 17 and thecompressor unit 19 may be arranged in line in the horizontal direction orthogonal to the vertical direction C1. In this case, theoutput shaft 171 in themotor unit 17 and theinput shaft 19c in thecompressor unit 19 are arranged on the same axis, so that themotor unit 17 and thecompressor unit 19 are directly linked. - Additionally, although in the present embodiment, the
connector unit 24 and thewiring board unit 25 are housed in the second housing space S2 so as to be exposed through the coolingair inflow port 10b when the coolingair filter portion 16 is moved to open the coolingair inflow port 10b, this is not always the case. For example, theconnector unit 24 and thewiring board unit 25 may be housed in the first housing space S1 and also arranged closer to thefront portion 10D than thecompressor unit 19 in the first direction A1. In this case, by detaching thepanel member 12 from thefront portion 10D to open theopening 10a and detaching theconnector unit 24 from thewiring board unit 25 through theopening 10a, thepanel unit 11 and theconnector unit 24 can be detached as a whole from thehousing 10. In other words, arrangement of theconnector unit 24 and thewiring board unit 25 is not particularly limited and can be appropriately changed according to a mode of use of the air compression device X1. - Additionally, although in the present embodiment, the
lower extension portion 122f in the swellingportion 122 has thethird part 122i upwardly bending so as to avoid the compressibleair inflow port 121a, so that the first recessed space S3 and the second recessed space S4 continue to each other so as to avoid the compressibleair inflow port 121a, this is not always the case. For example, the recessed space S5 configured with the first recessed space S3 and the second recessed space S4 may have a generally rectangular shape when viewed from the first direction A1, and the compressibleair inflow port 121a may be formed outside the recessed space S5 having a generally rectangular shape. In other words, a positional relationship among the first recessed space S3, the second recessed space S4, and the compressibleair inflow port 121a is not particularly limited, but can be appropriately changed according to a mode of use of the air compression device X1. - Additionally, although in the present embodiment, the compressible
air filter portion 26 and theguide path 20 are indirectly linked by thetrim seal 27, the compressibleair filter portion 26 and theguide path 20 may, not limited thereto, be directly linked. - The above-described present embodiment and a second embodiment are for illustrative purpose only and are not to be construed as limiting in any manner. The scope of the present invention is represented not by the description of the above-described present embodiment and the second embodiment but by the scope of claims for patent and further includes meanings equivalent to the scope of claims for patent and all changes within the range.
- Here, the above embodiment will be outlined.
- (1) In the above air compression device, the fan device unit for cooling the compressor unit is attached to the panel member which closes the opening of the housing. Therefore, when moving the panel member so as to open the opening, the fan device unit is to move together with the panel member. Therefore, at the time of conducting maintenance of the compressor unit in the housing through the opening of the housing, the fan device unit does not become a hindrance, so that the maintenance can be conducted with ease.
- (2) It is preferable that the panel member is detachably attached to the housing.
In the above air compression device, by detaching the panel member from the housing at the time of maintenance of the compressor unit, the maintenance can be conducted more easily. - (3) The fan device unit may be configured to have an inlet port which sucks air in the housing and send the air sucked through the inlet port toward the compressor unit. In this case, the panel member may be formed with a recessed space, the recessed space being a part of the inner surface of the panel member recessed from the inside of the housing toward the outside. In this case, at least a part of the fan device unit is preferably arranged in the recessed space such that the inlet port is located in the recessed space.
In the above air compression device, the panel member has the recessed space, and the fan device unit is arranged such that the inlet port is located in the recessed space. Therefore, when the inlet port sucks air in the housing, the inner surface of the panel member which forms the recessed space is to guide the air to go around toward the inlet port. As a result, on the upstream side of the inlet port in the air flow direction, the flow direction is to bend. Accordingly, noise of the air compression device can be reduced. - (4) The compressor unit may have the first compressor and the second compressor. Additionally, the fan device unit may have the first fan device which generates an air flow that cools the first compressor, and the second fan device which generates an air flow that cools the second compressor. Additionally, the recessed space may have the first recessed space in which at least a part of the first fan device is arranged, and the second recessed space in which at least a part of the second fan device is arranged. In this case, the first recessed space and the second recessed space preferably continue with each other.
In the above air compression device, it is not necessary to individually form the first recessed space in which at least a part of the first fan device is arranged and the second recessed space in which at least a part of the second fan device is arranged. Therefore, process of the panel member can be facilitated. - (5) The panel member may have the compressible air inflow port which is located between the first fan device and the second fan device and which allows air to flow into the housing. In this case, the first recessed space and the second recessed space preferably continue to each other between the first fan device and the second fan device so as to avoid the compressible air inflow port.
In the above air compression device, the compressible air inflow port is provided between the first fan device and the second fan device, while the first recessed space and the second recessed space continue with each other. Therefore, an increase in size of the air compression device can be suppressed. - (6) The above air compression device preferably further includes the compressible air filter portion detachably attached to the panel member so as to be fitted in the compressible air inflow port.
In the above air compression device, the compressible air filter portion prevents foreign matters from entering the inside of the housing through the compressible air inflow port, as well as enabling maintenance of the compressible air filter portion to be facilitated by detaching the compressible air filter portion from the panel member. - (7) The compressible air filter portion may have the filter main body, and the fixing portion which fixes the filter main body to the panel member. In this case, the fixing portion is preferably arranged within the range of the width of the filter main body in the horizontal direction.
In the above air compression device, the fixing portion for fixing the filter main body to the panel member falls within the range of the width of the filter main body in the horizontal direction. Therefore, an interval between the first recessed space and the second recessed space in the horizontal direction can be set to be short. This realizes reduction in size of the air compression device as a whole. - (8) The above air compression device preferably further includes the guide path which guides air flowing into the housing from the compressible air inflow port to the compressor unit, and the trim seal which links the filter main body of the compressible air filter portion and the guide path.
In the above air compression device, since the filter main body and the guide path are linked via the trim seal, the compressible air filter portion can be detached from the panel member and the guide path with ease. - (9) The front portion of the housing may be formed with the cooling air inflow port which allows air to flow into the housing. In this case, the air compression device preferably further includes the cooling air filter portion attached to the housing so as to be able to open or close the cooling air inflow port.
In the above air compression device, the front portion of the housing is formed with the opening covered with the panel member and the cooling air inflow port covered with the cooling air filter portion, and the cooling air filter portion is attached to the housing so as to be able to open or close the cooling air inflow port. Therefore, moving the panel member so as to open the opening on the front portion side of the housing enables maintenance of the compressor unit. Additionally, moving the cooling air filter portion so as to open the cooling air inflow port also enables maintenance of the cooling air filter portion on the front portion side of the housing. - (10) The above air compression device may further include the connector unit for the wire leading to the fan device unit. In this case, the connector unit is preferably arranged to be exposed through the cooling air inflow port when the cooling air filter portion is moved so as to open the cooling air inflow port.
- In the above air compression device, since when the cooling air filter portion is moved so as to open the cooling air inflow port, the connector unit is exposed through the cooling air inflow port, connection work and connection releasing work of the connector unit can be conducted through the cooling air inflow port with ease. Specifically, when conducting maintenance of the compressor unit in the air compression device, first, the connection releasing work of the connector unit is conducted through the cooling air inflow port while moving the suction panel so as to open the cooling air inflow port. Thereafter, by moving the panel member so as to open the opening, the fan device unit, the wire leading to the fan device unit, and the connector unit are moved integrally. This enables maintenance of the compressor unit to be conducted through the opening with ease.
- As described in the foregoing, the embodiment provides an air compression device in which maintenance of a compressor unit can be conducted with ease.
Claims (9)
- An air compression device (X1) comprising:a housing (10) which has a front portion (10D) with an opening (10a) formed, and in which a compressor unit (19) is housed;a fan device unit (14) which generates an air flow that cools the compressor unit (19); anda panel member (12) to which the fan device unit (14) is attached,wherein the panel member (12) is attached to the housing (10) so as to be able to open or close the opening of the housing (10); andwherein the fan device unit (14) is configured to have an inlet port (14a) which sucks air in the housing (10) and send the air sucked through the inlet port (14a) toward the compressor unit (19), andcharacterized in thatthe panel member (12) is formed with a recessed space (S5), the recessed space being a part of an inner surface of the panel member (12) recessed from the inside of the housing (10) toward the outside, andat least a part of the fan device unit (14) is arranged in the recessed space (S5) such that the inlet port (14a) is located in the recessed space (S5) so that an inner surface of the panel member (12) forming the recessed space (S5) is configured to guide the air, flowing in a passage (F1) at the side surface (14c) of the fan device unit (14) in a direction towards the inner surface of the panel member (12) to go around toward the inlet port (14a) so as to reduce the noise of the air compression device (X1).
- The air compression device (X1) according to claim 1, wherein the panel member is detachably attached to the housing (10).
- The air compression device (X1) according to claim 1 or 2, wherein
the compressor unit (19) has a first compressor (19A) and a second compressor (19B),
the fan device unit (14) has a first fan device (14A) which generates an air flow that cools the first compressor (19A) and a second fan device (14B) which generates an airflow that cools the second compressor (19B), and
the recessed space (S5) has a first recessed space (S3) in which at least a part of the first fan device (14A) is arranged and a second recessed space (S4) in which at least a part of
the second fan device (14B) is arranged, the first recessed space (S3) and the second recessed space (S4) continuing with each other. - The air compression device (X1) according to claim 3, wherein
the panel member (12) has a compressible air inflow port (121a) which is located between the first fan device (14A) and the second fan device (14B) and which allows air to flow into the housing (10), and
the first recessed space (S3) and the second recessed space (S4) continue to each other between the first fan device (14A) and the second fan device (14B) so as to avoid the compressible air inflow port (121a). - The air compression device (X1) according to claim 4, further comprising:
a compressible air filter portion (26) detachably attached to the panel member (12) so as to be fitted in the compressible air inflow port (121a). - The air compression device (X1) according to claim 5, wherein
the compressible air filter portion (26) has a filter main body (26a), and a fixing portion (26c) which fixes the filter main body (26a) to the panel member (12), and
the fixing portion (26c) is arranged within a range of a width of the filter main body (26a) in a horizontal direction. - The air compression device (X1) according to any one of claims 1 to 6, further comprising:a guide path (20) which guides air flowing into the housing (10) from a compressible air inflow port (121a) to the compressor unit (19); anda trim seal (27) which links a compressible air filter portion (26) and the guide path (20).
- The air compression device (X1) according to any one of claims 1 to 7,
wherein the front portion (10D) of the housing (10) is formed with a cooling air inflow port (10b) which allows air to flow into the housing (10), the air compression device (X1) further comprising: a cooling air filter portion (16) attached to the housing (10) so as to be able to open or close the cooling air inflow port (10b). - The air compression device (X1) according to claim 8, further comprising:a connector unit (24) for a wire leading to the fan device unit (14),wherein the connector unit (24) is arranged to be exposed through the cooling air inflow port (10b) when the cooling air filter portion (16) is moved so as to open the cooling air inflow port (10b).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015110459 | 2015-05-29 | ||
PCT/JP2016/065548 WO2016194755A1 (en) | 2015-05-29 | 2016-05-26 | Air compression device |
Publications (3)
Publication Number | Publication Date |
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EP3306088A1 EP3306088A1 (en) | 2018-04-11 |
EP3306088A4 EP3306088A4 (en) | 2018-12-26 |
EP3306088B1 true EP3306088B1 (en) | 2020-01-29 |
Family
ID=57440691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16803190.4A Active EP3306088B1 (en) | 2015-05-29 | 2016-05-26 | Air compression device |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3306088B1 (en) |
JP (1) | JP6812343B2 (en) |
CN (1) | CN107636307B (en) |
SG (1) | SG11201709432VA (en) |
TW (1) | TWI638964B (en) |
WO (1) | WO2016194755A1 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5550466Y2 (en) * | 1975-08-06 | 1980-11-25 | ||
JPS6115271Y2 (en) * | 1979-01-20 | 1986-05-12 | ||
JP2719820B2 (en) * | 1989-02-18 | 1998-02-25 | トキコ株式会社 | Compressor |
JP3946678B2 (en) * | 2003-09-22 | 2007-07-18 | アネスト岩田株式会社 | Package type fluid machinery |
JP4515880B2 (en) * | 2004-10-15 | 2010-08-04 | 株式会社日立製作所 | Package type compressor |
JP2007028740A (en) * | 2005-07-13 | 2007-02-01 | Toshiba Corp | Filtering device for switchgear |
JP5412248B2 (en) * | 2009-11-18 | 2014-02-12 | 株式会社日立産機システム | Compressor |
CN201839538U (en) * | 2010-08-27 | 2011-05-18 | 深圳日海通讯技术股份有限公司 | Radiating structure for equipment cabinet |
JP6096474B2 (en) * | 2012-11-05 | 2017-03-15 | シナノケンシ株式会社 | Compressor or vacuum machine |
KR20140105083A (en) * | 2013-02-21 | 2014-09-01 | 엘지전자 주식회사 | ceiling type air conditioner |
CN203243628U (en) * | 2013-04-07 | 2013-10-16 | 江苏通鼎通信设备有限公司 | Dustproof ventilation device for outdoor cabinet |
CN204239176U (en) * | 2014-10-20 | 2015-04-01 | 台州市伸顺电机制造有限公司 | Handpiece of air compressor |
-
2016
- 2016-05-26 SG SG11201709432VA patent/SG11201709432VA/en unknown
- 2016-05-26 WO PCT/JP2016/065548 patent/WO2016194755A1/en unknown
- 2016-05-26 EP EP16803190.4A patent/EP3306088B1/en active Active
- 2016-05-26 JP JP2017521871A patent/JP6812343B2/en active Active
- 2016-05-26 CN CN201680031607.3A patent/CN107636307B/en active Active
- 2016-05-26 TW TW105116509A patent/TWI638964B/en active
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Also Published As
Publication number | Publication date |
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JPWO2016194755A1 (en) | 2018-03-15 |
SG11201709432VA (en) | 2017-12-28 |
CN107636307A (en) | 2018-01-26 |
WO2016194755A1 (en) | 2016-12-08 |
JP6812343B2 (en) | 2021-01-13 |
TWI638964B (en) | 2018-10-21 |
TW201704702A (en) | 2017-02-01 |
EP3306088A4 (en) | 2018-12-26 |
EP3306088A1 (en) | 2018-04-11 |
CN107636307B (en) | 2020-12-29 |
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