JP6748048B2 - Portable compressed air feeder - Google Patents

Description

The present invention relates to a portable compressed air supply machine.

BACKGROUND ART Conventionally, portable pneumatic tools for driving nails or screws into wood or the like by the pressure of compressed air have been widely used in construction sites and the like. A portable air compressor is carried to the construction site, and compressed air is supplied from the portable air compressor to the pneumatic tool.

As such an air compressor, for example, Patent Document 1 can be cited. The air compressor of Patent Document 1 includes a main body cover that is a portable case, and a carrying handle is connected to the main body cover. The body cover accommodates an air tank that stores compressed air, a compression unit that compresses air and supplies the air tank, a motor that drives the compression unit, and a control circuit unit that controls the operation of the motor. There is. Then, the high-pressure compressed air compressed by the compression unit and stored in the air tank is adjusted to an appropriate pressure by the pressure reducing valve attached to the air tank, and is supplied to the pneumatic tool or the like via the air hose.

JP, 2005-143481, A

By the way, there is a case where a pneumatic circuit is constructed in a laboratory, a laboratory, an indoor exhibition hall, etc., and an air compressor is used as a compressed air source of the pneumatic circuit. Since the air compressor of Patent Document 1 is a simple type air compressor and does not include a cooler for compressed air or a gas-liquid separator, the air compressor of Patent Document 1 is compressed by a pneumatic circuit. When used as an air source, compressed air containing water at high temperature is supplied to the pneumatic circuit. If compressed air containing moisture at high temperature is supplied to the pneumatic circuit, it may damage the pneumatic equipment, and is therefore not preferable as a compressed air source for the pneumatic circuit.

Therefore, it is conceivable to add a refining device such as a cooler for cooling the discharged compressed air or a filter for separating water from the compressed air in the portable air compressor as in Patent Document 1. However, with the addition of the refining equipment, the equipment is tightly housed inside the main body cover, and the heat generated from the air compressor tends to stay inside the main body cover, causing the temperature of the air compressor to rise. It is not preferable because it becomes easier. Further, the vibration of the air compressor is transmitted to the main body cover through the heat treatment equipment, and noise due to the vibration is likely to be generated, which is not preferable.

An object of the present invention is to provide a portable compressed air supply device capable of suppressing noise while suppressing an increase in temperature of the compressor.

A portable compressed air supply device for solving the above problems is a portable case configured by assembling a first case member and a second case member, and a first divided inside the first case member. A first storage chamber and a second storage chamber, a compressor that is stored in the first storage chamber and discharges compressed air, and a compressor that is stored in the second storage chamber and that is discharged from the compressor A refining device, a panel attached to the first case member to cover the first storage chamber and the second storage chamber, and inside the portable case, between the panel and the second case member. An internal space that is partitioned and communicates with the first storage chamber.

Further, the portable compressed air supply device may include a panel intake fan provided in a portion of the panel that covers the first storage chamber, and an exhaust fan provided in the first case member. Good.

Further, in the portable compressed air supplier, the exhaust fan may be provided in a portion of the first case member that defines the first storage chamber.
Further, in the portable compressed air supply device, a case intake fan provided in a portion of the first case member that defines the second accommodation chamber, and an inside and an outside of the second accommodation chamber through the panel are provided. And an opening for communicating with each other.

Further, in the portable compressed air supply device, the conditioning device is a cooler that cools the compressed air, and the case intake fan is installed in the first case member so as to face the cooler. May be.

Further, in the portable compressed air supply device, the panel may be made of metal.
Further, in the portable compressed air supply device, the mounting leg of the compressor is mounted, and the mounting plate fixed to the first case member inside the first storage chamber, the mounting plate and the mounting leg. In a plan view of the vibration isolating member interposed between the compressor and the mounting plate and the compressor, the supporting member is arranged in four directions surrounding the compressor and is fixed to the mounting plate. And a stopper that is interposed between the opposing surfaces of the support member and the compressor and that can come into contact with the compressor.

Further, in the portable compressed air supply device, the mounting plate may be a partition wall that partitions the first case member into the first storage chamber and the second storage chamber.
Further, in the portable compressed air supply device, the portable case may be made of resin.

Further, in the portable compressed air supply device, the first storage chamber may be above the second storage chamber.

According to the present invention, noise can be suppressed while suppressing an increase in temperature of the compressor.

The perspective view which shows the portable compressed air supply machine of embodiment from the lid member side. The perspective view which shows the portable compressed air supply machine of embodiment from the case member side. The front view which shows a portable compressed air supply machine in the state which opened the lid member. The partially broken perspective view which shows a portable compressed air supply machine. The figure which shows a pneumatic circuit. The perspective view which shows a compressor. The top view which shows a compressor and a partition. The perspective view explaining the flow of the air in a portable compressed air supply machine. Sectional drawing which shows typically the flow of the air in a portable compressed air supply machine.

An embodiment of a portable compressed air supply device will be described below with reference to FIGS. 1 to 9.
As shown in FIG. 1 or 2, the portable compressed air supplier 11 includes a resin-made portable case 12. As the resin that constitutes the portable case 12, a resin that is lightweight and has excellent impact resistance is preferable, and examples thereof include polypropylene, polycarbonate, and ABS resin.

As shown in FIG. 4, the portable case 12 has a tank 36 that stores compressed air, a compressor 41 that compresses the air and supplies the compressed air to the tank 36, and a compressed air that is discharged from the compressor 41. And a plurality of conditioning equipments to be stored.

As shown in FIG. 1 or 2, the portable case 12 is configured by connecting a case member 13 as a first case member and a lid member 23 as a second case member via a hinge 37. The case member 13 accommodates the tank 36, the compressor 41, and a plurality of refining devices described above.

The case member 13 is in the shape of a hollow box having an opening on one surface. The case member 13 includes a bottom plate 14 having a rectangular plate shape, a first long side wall 15a as a side wall erected from one long edge of the bottom plate 14, and a second long side wall 15b as a side wall erected from the other long edge. And a first short side wall 15c as a side wall erected from one short edge of the bottom plate 14 and a second short side wall 15d as a side wall erected from the other short edge.

As shown in FIG. 9, the case member 13 defines a storage space S1 defined by a bottom plate 14, a first long side wall 15a, a second long side wall 15b, a first short side wall 15c, and a second short side wall 15d. Prepare
In the case member 13, the edge formed by connecting the projecting ends of the first long side wall 15a, the second long side wall 15b, the first short side wall 15c, and the second short side wall 15d from the bottom plate 14 is defined as the opening side edge H1. In the case member 13, the direction in which a straight line connecting the opening side edge H1 and the bottom plate 14 at the shortest distance extends is the depth direction, and the length of the straight line in the depth direction is the depth F1.

As shown in FIG. 1, FIG. 2 or FIG. 3, the case member 13 includes the grip portion 16 on the second short side wall 15d and the second long side wall 15b. The case member 13 includes a pair of support cylinders 17 integrated with the outer surface of the bottom plate 14 on the outer surface of the bottom plate 14, and each support cylinder 17 has an axis extending vertically. Both side portions of a U-shaped moving grip portion 18 are inserted into each of the support cylinder portions 17. The moving grip 18 is supported by the support cylinder 17 so as to be retractable. The case member 13 includes a pair of casters 19 at the bottom of the bottom plate 14 that rolls in contact with the road surface when the portable case 12 is moved.

The case member 13 includes a first exhaust fan 20a arranged on the bottom plate 14 and a second exhaust fan 20b arranged on the second short side wall 15d. The first exhaust fan 20 a and the second exhaust fan 20 b discharge the air inside the portable case 12 to the outside of the portable case 12. Further, the case member 13 includes a case intake fan 21 arranged on the first long side wall 15a. The case intake fan 21 takes in the air outside the portable case 12 into the portable case 12.

The lid member 23 is in the shape of a box with a lid, and has a rectangular plate-shaped top plate 24, a first long side wall 25 a as a side wall standing upright from one long edge of the top plate 24, and a standing upright from the other long edge. A second long side wall 25b as a side wall, a first short side wall 25c as a side wall erected from one short edge of the top plate 24, and a second short side wall 25d as a side wall erected from the other short edge. Prepare Then, the lid internal space S2 as an internal space is defined in the space defined by the top plate 24, the first long sidewall 25a, the second long sidewall 25b, the first short sidewall 25c, and the second short sidewall 25d. ing.

As shown in FIG. 9, in the lid member 23, an edge formed by connecting the projecting ends of the first long side wall 25a, the second long side wall 25b, the first short side wall 25c, and the second short side wall 25d from the top plate 24. Is defined as the opening side edge H2. Then, in the lid member 23, the length of a straight line connecting the opening side edge H2 and the top plate 24 with the shortest distance is defined as a depth F2. The depth F2 of the lid member 23 is shallower than the depth F1 of the case member 13. When the accommodation space S1 of the case member 13 is closed by the lid member 23, a closed section S formed by the accommodation space S1 and the lid internal space S2 is formed in the portable case 12.

As shown in FIG. 4 or FIG. 9, in the portable compressed air supply device 11, the accommodation space S1 of the case member 13 is divided into the first accommodation chamber 25 on the second short side wall 15d side and the second accommodation side 25c on the first short side wall 15c side. A partition wall 27 that divides the storage chamber 26 into two is provided. The first storage chamber 25 includes the second short side wall 15d of the case member 13, a portion of the first long side wall 15a and the second long side wall 15b on the second short side wall 15d side, and the second short side wall 15d of the bottom plate 14. And a partition wall 27. The second storage chamber 26 includes the first short side wall 15c of the case member 13, a portion of the first long side wall 15a and the second long side wall 15b on the side of the first short side wall 15c, and the bottom plate 14 of the first short side wall 15c. And a partition wall 27.

The partition wall 27 has a rectangular plate shape. The partition wall 27 is provided on the first long side wall 15a and the second long side wall 15b and divides the case member 13 into two parts in the longitudinal direction. Both ends in the longitudinal direction of the partition wall 27 are fixed to L-shaped brackets 29 fixed to the inner surfaces of the first long side wall 15a and the second long side wall 15b.

As shown in FIG. 8 or 9, the portable compressed air supplier 11 includes a panel 30 that covers the accommodation space S1 of the case member 13. The panel 30 is made of aluminum. In a front view of the case member 13 viewed in the depth direction, the panel 30 has a rectangular shape, but a part of the panel 30 closer to the first short side wall 15c of the case member 13 and closer to the first longer side wall 15a. Are at positions displaced in the depth direction of the case member 13. The panel 30 includes a first panel portion 31 that is L-shaped when viewed from the front, a second panel portion 32 that is rectangular when viewed from the front, located at a position retracted from the first panel portion 31 in the depth direction of the case member 13, It has the connection part 33 which connects the 1st panel part 31 and the 2nd panel part 32.

The first panel portion 31 is provided continuously with the main body portion 31a having a quadrangular shape in a front view and in the surface direction of the main body portion 31a, and protrudes from a part of the main body portion 31a toward the first short side wall 15c of the case member 13. And a portion 31b. The main body portion 31a covers the entire first storage chamber 25 and a portion of the second storage chamber 26 near the partition wall 27 in the storage space S1, and the protrusion portion 31b has the second long side wall 15b in the second storage chamber 26. Cover a part of the side.

The connecting portion 33 projects toward the bottom plate 14 from a long edge portion of the pair of long edge portions of the projecting portion 31b near the first long side wall 15a of the case member 13. The second panel portion 32 has a pair of long edge portions 32a that are parallel to each other when viewed from the front, and also has a pair of short edge portions 32b that connect one end or the other end of the pair of long edge portions 32a. Of the pair of long edge portions 32a of the second panel portion 32, one long edge portion 32a near the protruding portion 31b is connected to the protruding end of the connecting portion 33, and the other long edge portion 32a is the first long edge portion 32a of the case member 13. It is arranged along the inner surface of the first long side wall 15a.

As shown in FIG. 9, the pair of short edge portions 32 b of the second panel portion 32 are not connected to the first panel portion 31, respectively. With this configuration, the panel 30 has the opening portion 34 between the edge portion of the main body portion 31a near the second panel portion 32 and the one short edge portion 32b of the second panel portion 32. The opening 34 connects the space covered by the first panel portion 31 and the space not covered by the first panel portion 31 in the accommodation space S1. That is, the opening 34 connects the inside and the outside of the second storage chamber 26 via the panel 30.

The portable compressed air supply device 11 includes a panel intake fan 35 installed in the first panel portion 31. The panel intake fan 35 is installed in a portion of the first panel portion 31 that covers the first storage chamber 25. The panel intake fan 35 takes in air into the first storage chamber 25. The air taken into the first storage chamber 25 is discharged to the outside of the first storage chamber 25 by the first exhaust fan 20a and the second exhaust fan 20b. Therefore, the panel intake fan 35 and the first and second exhaust fans 20a and 20b form a passage Y through which air flows in the first storage chamber 25.

In the state in which the storage space S1 of the case member 13 is covered with the lid member 23 to form the portable case 12, the panel 30 has the closed space S in the storage space S1 on the side of the case member 13 and the inside of the lid on the side of the cover member 23. Partition into space S2. The panel intake fan 35 faces the lid internal space S2, and takes in the air in the lid internal space S2 into the first storage chamber 25. On the other hand, as shown in FIG. 3, in the state where the lid member 23 is opened and the accommodation space S1 is not covered by the lid member 23, the panel intake fan 35 takes in outside air into the first accommodation chamber 25.

Here, the equipment accommodated in the portable case 12 will be described.
As shown in FIG. 4, in the case member 13 of the portable case 12, a compressor 41, a tank 36, and a plurality of refining devices are housed.

As shown in FIG. 5, an intake filter 48 is connected to the intake port 41b of the compressor 41 via an intake pipe 46b. A discharge pipe 46a connected to the discharge port 41a of the compressor 41 is connected to an inlet 61a of a cooler 61, which is one of the refining equipment, and compressed air discharged from the compressor 41 flows to the cooler 61. Inflow.

The cooler 61 cools the inflowing compressed air. The cooler 61 is an air-cooled type that cools the compressed air with the air taken into the portable case 12 by the case intake fan 21. As shown in FIG. 4, the cooler 61 has a spiral copper tube 61c, and the compressed air is cooled while the compressed air flows through the copper tube 61c.

As shown in FIG. 5, the outlet 61b of the cooler 61 is connected to the inlet 62a of the filter 62 having a water separation function, which is one of the refining equipment, via the first pipe 59b, and the filter 62 is connected to the outlet 62b. The compressed air cooled by the cooler 61 flows in. The filter 62 has a centrifugal separation structure to separate and remove water generated in the compressed air. The outlet 62b of the filter 62 is connected to the inlet 63a of the check valve 63 via the second pipe 59c, and the compressed air from which moisture has been removed flows into the check valve 63. The check valve 63 prevents the compressed air in the tank 36 from flowing backward to the compressor 41 side.

On the upstream side of the check valve 63, a blow solenoid valve 64 is connected to the third pipe 59d branched from the second pipe 59c. The blow solenoid valve 64 is used to release the pressure in the compression chamber of the compressor 41 to the atmosphere when the compressor 41 is started. The outlet 63b of the check valve 63 is connected to the inlet 36a of the tank 36 via the fourth pipe 59e, and the compressed air passing through the check valve 63 flows into the tank 36. On the upstream side of the tank 36, a relief valve 65 is connected to the fifth pipe 59f branched from the fourth pipe 59e.

An outlet 66b of the tank 36 is connected to an inlet 66a of a pressure reducing valve 66 with a filter, which is one of the refining equipment, via a sixth pipe 59g, and an outlet 66b of the pressure reducing valve 66 with a filter is connected to an air pressure not shown. Connected to the circuit. The compressed air stored in the tank 36 is decompressed by the pressure reducing valve 66 with a filter and supplied to the pneumatic circuit. A residual pressure discharge valve 67 is connected to the tank 36, and the residual pressure discharge valve 67 discharges the residual pressure in the tank 36. A pressure sensor 72 is connected to the sixth pipe 59g to detect the pressure in the tank 36.

As shown in FIG. 4, the compressor 41 is housed in the first housing chamber 25 of the portable case 12. As shown in FIG. 6 or 7, the compressor 41 includes a cylindrical housing 42. The direction in which the axis of the housing 42 extends is the longitudinal direction. The housing 42 includes compressor housings 42a on both sides in the longitudinal direction and a motor housing 42b sandwiched between a pair of compressor housings 42a. A compression unit (not shown) is housed in each compressor housing 42a, and a motor 44 (see FIG. 5) that drives the compression unit is housed in the motor housing 42b. The compression mode of air in the compression section may be any of a piston type, a vane type, a screw type and the like.

The compressor 41 includes an integral pipe support portion 45 at the top of each compressor housing 42a. Each pipe support portion 45 has a rectangular block shape, and each pipe support portion 45 has a discharge pipe 46a connected to the discharge port 41a of the compressor 41 and a suction pipe connected to the suction port 41b of the compressor 41. 46b is supported.

The compressor 41 includes a pair of mounting legs 47 at the bottom of each compressor housing 42a. Each mounting leg portion 47 is fixed to the partition wall 27 via a vibration-proof rubber 49. Therefore, the partition wall 27 functions as a mounting plate to which the mounting leg portion 47 of the compressor 41 is mounted. The anti-vibration rubber 49 is interposed between the mounting leg portion 47 and the partition wall 27. The anti-vibration rubber 49 is elastically deformable, absorbs the vibration generated in the compressor 41, and suppresses the vibration from propagating to the partition wall 27.

The portable compressed air supply device 11 includes first support members 50 fixed to both sides of the partition wall 27 in the longitudinal direction. Each of the first support members 50 is U-shaped, and includes a rectangular plate-shaped first mounting piece 50a and a rectangular plate-shaped second mounting piece 50b standing upright from both ends in the longitudinal direction of the first mounting piece 50a. .. The length in the longitudinal direction of the first mounting piece 50a is slightly longer than the length in the lateral direction of the compressor 41. The pair of second mounting pieces 50b is in a state of protruding from both sides in the lateral direction of the partition wall 27.

Further, the portable compressed air supply device 11 includes a second support member 51 attached to the pair of second attachment pieces 50b of each first support member 50. Each second support member 51 is U-shaped, and includes a rectangular plate-shaped first mounting piece 51a and a rectangular plate-shaped second mounting piece 51b standing upright from both ends in the longitudinal direction of the first mounting piece 51a. .. The length of the first mounting piece 51a in the second support member 51 in the longitudinal direction is slightly longer than the length of the compressor 41 in the lateral direction, and is between the inner surfaces of the pair of second mounting pieces 50b of the first support member 50. Same or slightly longer than the dimensions.

Each second attachment piece 51b of the second support member 51 is connected to the inner surface of the second attachment piece 50b of the first support member 50, and the first support member 50 and the second support member 51 are integrally assembled. There is. The pair of second support members 51 are assembled to the first support member 50 in a state where the first attachment pieces 51a are located outside both longitudinal ends of the compressor 41.

As shown in FIG. 7, when the compressor 41 is viewed in a plan view with the partition wall 27 overlapping the compressor 41, the second mounting piece 50b of each first support member 50 is arranged in the lateral direction of each compressor housing 42a. It is arranged at a position sandwiched from both sides. Further, the first mounting piece 51a of the second support member 51 is arranged on the outer side in the longitudinal direction of each compressor housing 42a. Therefore, the compressor 41 is sandwiched by the two second mounting pieces 50b from both sides in the lateral direction and is sandwiched by the first mounting pieces 51a from both sides in the longitudinal direction. Specifically, in a plan view in which the partition wall 27 overlaps below the compressor 41, the second mounting piece 50b of the first support member 50 and the second mounting piece 50b are provided at positions surrounding the compressor 41 from four directions (front, rear, left, and right). The 1st attachment piece 51a of the support member 51 is arrange|positioned.

A stopper bolt 53 as a stopper is fixed to each second mounting piece 50b of each first support member 50. The stopper bolt 53 is fixed to the inner surface side of the second mounting piece 50b, and is arranged in a state where there is a gap between both sides in the lateral direction of the compressor 41 and the side surface of the pipe support portion 45. The stopper bolt 53 includes a contact portion 53a at a portion facing the pipe support portion 45, and the contact portion 53a is made of rubber or resin.

A stopper bolt 53 as a stopper is fixed to the central portion in the longitudinal direction of the first attachment piece 51a of each second support member 51. The stopper bolt 53 is fixed to the inner surface side of the first mounting piece 51a, and is arranged with a gap between both sides in the longitudinal direction of the compressor 41 and the side surface of the compressor housing 42a. The stopper bolt 53 is provided with a contact portion 53a at a portion facing the compressor housing 42a, and the contact portion 53a is made of rubber or resin.

The compressor 41 is housed in the first housing chamber 25 while being fixed to the partition wall 27 via the anti-vibration rubber 49. Further, the contact portions 53 a of the stopper bolt 53 are arranged on all sides of the compressor 41. Stopper bolts 53 are arranged at two locations on both sides in the lateral direction of the compressor 41, and stopper bolts 53 are arranged at one location on both sides in the longitudinal direction of the compressor 41. When the portable compressed air supply device 11 tilts, the compressor 41 tilts only by the gap existing between the compressor 41 and the stopper bolt 53, but the compressor 41 abuts the stopper bolt 53 at the tilted tip. It abuts the portion 53a. Then, the compressor 41 is supported by the contact portion 53a, and the further tilt of the compressor 41 is restricted.

As shown in FIG. 4, in the second storage chamber 26 of the case member 13, the tank 36, the cooler 61, the filter 62, the check valve 63 (not shown in FIG. 4), the blow solenoid valve 64 (see FIG. 4). (Not shown), a relief valve 65 (not shown in FIG. 4), a pressure reducing valve 66 with a filter, and a residual pressure discharge valve 67 are accommodated. Among the above devices, the tank 36 is arranged in the space of the second storage chamber 26 covered by the protrusion 31 b of the first panel portion 31. Further, the cooler 61 is arranged in the second accommodation chamber 26 at a position close to the partition wall 27 and in a space covered by the main body portion 31 a of the first panel portion 31. Further, the cooler 61 is arranged at a position facing the case intake fan 21 provided on the first long side wall 15 a of the case member 13.

As shown in FIG. 3, the filter 62 and the filter-equipped pressure reducing valve 66 are installed in the second panel portion 32, and the check valve 63, the blow solenoid valve 64, and the relief valve 65 are the first in the second storage chamber 26. It is arranged in the space covered by the two-panel part 32. Further, the first to sixth pipes 59 b to 59 g are arranged in the space covered by the panel 30 in the second storage chamber 26.

The panel 30 is provided with a power switch 70 of the portable compressed air supplier 11, a start switch 71 of the compressor 41, and a pressure sensor 72. Although not shown, the portable compressed air supply device 11 includes a control unit that controls the operation of the motor 44, and the control unit is housed in the housing space S1.

When the power switch 70 is operated and turned on, the portable compressed air supply device 11 is driven, and the first exhaust fan 20a, the second exhaust fan 20b, the case intake fan 21, and the panel intake fan 35 are driven. It When the start-up switch 71 is operated and turned on, the blow solenoid valve 64 is driven by the control unit, and then the motor 44 is driven and the compressor 41 is driven. Under the control of the control unit, the compressor 41 compresses air until it reaches a preset pressure and then stops. When the pressure drops to a preset pressure, the controller again drives the compressor 41 to compress the air. The pressure of the compressed air can be confirmed by the pressure sensor 72.

As shown in FIG. 9, in the portable compressed air supply device 11 having the above configuration, when the housing space S1 of the case member 13 is closed by the lid member 23, a closed section S is formed. The panel 30 separates the closed space S into a storage space S1 and a space S2 inside the lid. In the portable case 12, the accommodation space S1 and the in-lid space S2 communicate with each other through an opening 34 in the case member 13.

Next, the operation of the portable compressed air supply device 11 will be described.
The portable compressed air supply device 11 having the above-described configuration can be carried by gripping the grip portion 16, and can be conveyed while pulling by gripping and pulling the moving grip portion 18 and rolling the caster 19. Then, the portable compressed air supplier 11 is transported to a place where the pneumatic circuit is installed and is connected to the pneumatic circuit for use.

In the portable compressed air supply device 11, the lid member 23 is opened to open the case member 13 to expose the panel 30. When the power switch 70 and the start switch 71 are operated and turned on, the compressor 41, the first exhaust fan 20a, the second exhaust fan 20b, the case intake fan 21, and the panel intake fan 35 are driven. Then, the lid member 23 is closed to form the portable case 12.

When the portable compressed air supply unit 11 is driven, first, the blow solenoid valve 64 releases the pressure in the compression chamber of the compressor 41 to the atmosphere. After that, the air sucked into the compressor 41 via the intake filter 48 is compressed in the compression chamber. The compressed air flows into the cooler 61. The compressed air flowing into the cooler 61 is cooled while flowing through the copper pipe 61c.

The compressed air cooled by the cooler 61 flows into the filter 62 having a water separation function. From the compressed air flowing into the filter 62, the water generated in the compressed air is separated by cooling and removed. The compressed air that has passed through the filter 62 passes through the check valve 63 and flows into the tank 36. The compressed air that has flowed into the tank 36 is temporarily stored. The compressed air stored in the tank 36 is decompressed by the pressure reducing valve 66 with a filter and supplied to the pneumatic circuit.

When stopping the portable compressed air supply device 11, the lid member 23 is opened to open the case member 13, and the panel 30 is exposed. Then, the power switch 70 and the activation switch 71 are operated to turn them off. Then, the compressor 41, the first exhaust fan 20a, the second exhaust fan 20b, the case intake fan 21, and the panel intake fan 35 stop. After the stop, the residual pressure discharge valve 67 is operated to discharge the residual pressure in the tank 36.

Now, when the portable compressed air supply device 11 is driven, high temperature compressed air is discharged from the compressor 41 and the temperature of the compressor 41 rises due to the compression operation of the compression unit. As shown in FIG. 9, the air outside the portable case 12 is taken into the second storage chamber 26 in the portable case 12 by the case intake fan 21. The air taken in is blown onto the copper pipe 61c of the cooler 61. Then, the compressed air passing through the copper pipe 61c is cooled.

Further, the air taken into the second storage chamber 26 passes through the opening 34 and flows out into the space not covered with the panel 30. After that, the air flows into the lid internal space S2 of the lid member 23. Then, the air is taken into the first storage chamber 25 by the panel intake fan 35 of the panel 30. Then, the compressor 41 is cooled by the air taken into the first storage chamber 25. The air taken into the first storage chamber 25 flows through the path Y and is discharged to the outside of the portable case 12 by the first exhaust fan 20a and the second exhaust fan 20b.

The compressor 41 is vibrated by driving the motor 44 and the compressor. The vibration of the compressor 41 is absorbed by the anti-vibration rubber 49. Further, the internal space S2 of the lid member 23 suppresses the vibration of the compressor 41 from propagating to the lid member 23.

According to the above embodiment, the following effects can be obtained.
(1) Inside the portable case 12, the first housing chamber 25 housing the compressor 41 is a space defined by the case member 13 and covered by the panel 30. Even in such a first storage chamber 25, the space S2 in the lid of the lid member 23 is communicated, the first storage chamber 25 is ventilated, and the compressor 41 is cooled by the circulating air. Therefore, the temperature rise of the compressor 41 can be suppressed. An air layer can be formed by the space S2 in the lid. Therefore, for example, as compared with the case where the lid member 23 is flat and the inner lid space S2 is not formed in the portable case 12, the vibration propagating to the lid member 23 is suppressed and the portable compressed air supply device 11 is operated. The generated noise can be suppressed.

(2) In the panel 30, the panel intake fan 35 is installed at a position facing the in-lid space S2, and the case member 13 is provided with the first exhaust fan 20a and the second exhaust fan 20b. Then, the air in the lid internal space S2 is taken into the first accommodating chamber 25 by the panel intake fan 35, and the first accommodating chamber 25 can be forcibly ventilated by the exhaust air from the first exhaust fan 20a and the second exhaust fan 20b. .. Thereby, the cooling efficiency of the compressor 41 can be improved.

(3) The first exhaust fan 20a and the second exhaust fan 20b are provided in a portion of the case member 13 that defines the first storage chamber 25. Therefore, the panel intake fan 35 and the first exhaust fan 20a and the second exhaust fan 20b allow the air to easily flow in the first housing chamber 25, thereby enhancing the ventilation efficiency of the first housing chamber 25 and increasing the compressor efficiency. The cooling efficiency of 41 can be improved.

(4) The case intake fan 21 is installed in the case member 13 at a position facing the cooler 61. Therefore, the air taken into the portable case 12 by the case intake fan 21 can be blown to the cooler 61, and the compressed air flowing through the cooler 61 can be efficiently cooled.

(5) The air taken into the second storage chamber 26 flows out to the space not covered with the panel 30 through the opening 34 and flows into the space S2 inside the lid. Further, the air is taken into the first housing chamber 25 by the panel intake fan 35, and then is exhausted from the first housing chamber 25 to the outside of the portable case 12 by the first and second exhaust fans 20a and 20b. Therefore, the entire portable case 12 can be ventilated by the case intake fan 21, the opening 34, the panel intake fan 35, and the first and second exhaust fans 20a and 20b.

(6) The panel 30 is made of aluminum, and aluminum is a material having high heat dissipation. For this reason, the heat generated in the compressor 41 is easily radiated to the in-lid space S2 by the panel 30, and the heat is less likely to stay in the first storage chamber 25.

(7) The vibration damping rubber 49 can prevent the vibration of the compressor 41 from propagating to the partition wall 27. In the configuration including the anti-vibration rubber 49, the compressor 41 can be supported by the first and second support members 50 and 51 and the stopper bolt 53 when the portable case 12 is inclined. Therefore, even if the portable compressed air supply device 11 takes any posture, the compressor 41 can be supported, the vibration damping rubber 49 can be suppressed from being largely bent, and the transport posture of the portable compressed air supply device 11 is limited. Can be eliminated. As a result, it becomes possible to carry the portable compressed air supply device 11 in the trunk of a car or in public transportation. Further, it becomes possible to carry the portable compressed air supplier 11 by one person, and the carrying range is expanded.

(8) The partition member 27 having the compressor 41 attached thereto divides the case member 13 into the first storage chamber 25 and the second storage chamber 26. Therefore, for example, compared with the case where the mounting plate for mounting the compressor 41 to the case member 13 and the member for partitioning the case member 13 are separately provided, the number of parts of the portable compressed air supply unit 11 is reduced and the weight is reduced. Can contribute to

(9) Since the portable case 12 is made of resin, it is possible to reduce the weight of the portable compressed air supplier 11 and improve the impact resistance.
(10) The first housing chamber 25 housing the compressor 41 is located above the second housing chamber 26. As in the case where the refining device such as the cooler 61 is stored in the first storage chamber 25 and the compressor 41 is stored in the second storage chamber 26, the heat generated in the compressor 41 rises and the cooler 61 is stored. Can be prevented from being heated.

(11) The portable compressed air supply device 11 includes not only the compressor 41, but also a refining device such as a cooler 61 that cools the compressed air and a filter 62 that removes water generated by cooling the compressed air. Therefore, the portable compressed air supplier 11 can supply the conditioned compressed air to the pneumatic circuit. Since the portable compressed air supply device 11 has a structure that suppresses noise, it can be used in a relatively quiet place such as a laboratory, a laboratory, or an indoor exhibition space. The usage range of is expanded.

(12) The portable compressed air supplier 11 can suppress heat from being stored in the first housing chamber 25 that houses the compressor 41, and can cool the compressor 41 and suppress the temperature rise of the compressor 41. .. Therefore, the compressor 41 can be continuously operated, and the life of sliding parts such as bearings included in the compressor 41 can be prevented from being shortened.

(13) Since the portable compressed air supply device 11 is portable, it is preferable that the compressed air supply device 11 is made compact and lightweight for transportation. However, the smaller the portable case 12 is, the more easily the heat generated in the compressor 41 is stored in the portable case 12, and the temperature of the compressor 41 rises, which makes continuous operation difficult. In the present embodiment, the case member 13 is partitioned by the partition wall 27, and the compressor 41 is housed in one of the first accommodating chambers 25 of the case member, while the space S2 in the lid of the lid member 23 is connected to the first accommodating chamber 25. As a result, it is possible to prevent heat from being stored in the first storage chamber 25. In particular, by using the panel intake fan 35 and the first and second exhaust fans 20a and 20b in combination, the first accommodation chamber 25 is forcibly ventilated and heat countermeasures are taken, so that the portable compressed air The feeder 11 can be downsized. Further, the panel intake fan 35 and the first and second exhaust fans 20 a and 20 b are arranged at positions where an air path Y is formed in the first storage chamber 25. Therefore, for example, as compared with the case where the first and second exhaust fans 20a and 20b are arranged at a position that does not partition the first storage chamber 25 like the first short side wall 15c of the case member 13, the path Y can be defined. Easy to make. As a result, the panel intake fan 35, the first exhaust fan 20a, and the second exhaust fan 20b can be downsized, which can contribute to downsizing of the portable case 12.

The above embodiment may be modified as follows.
In the first accommodation chamber 25 and the second accommodation chamber 26, the first accommodation chamber 25 accommodating the compressor 41 may be arranged below the second accommodation chamber 26 accommodating the refining equipment and the tank 36. ..

The case member 13 and the lid member 23 of the portable case 12 may be made of lightweight metal, for example, aluminum.
The compressor 41 may not be attached to the partition wall 27, but may be attached to the inner surface of the second short side wall 15d of the case member 13. Alternatively, an attachment plate to which the compressor 41 is attached and which is fixed to the case member 13 may be provided separately from the partition wall 27.

The stopper bolt 53 is interposed as a stopper between the first and second support members 50 and 51 and the compressor 41, but the stopper may be other than the stopper bolt. For example, plate-shaped rubber may be interposed between the first and second support members 50 and 51 and the compressor 41.

The panel 30 may be made of a material other than aluminum as long as it has a high heat dissipation property.
The panel 30 may be made of resin.

The case intake fan 21 may be installed at a position different from the position facing the cooler 61, as long as the air can be taken into the portable case 12.
The cooler 61 may be water-cooled.

At least one of the first exhaust fan 20a and the second exhaust fan 20b is installed in the case member 13 at a position that does not partition the first storage chamber 25, for example, at a position that partitions the second storage chamber 26. Good.

The panel intake fan 35 of the panel 30, the first exhaust fan 20a, and the second exhaust fan 20b may be omitted. Even with such a configuration, air can be prevented from being trapped in the first housing chamber 25 by communicating the first housing chamber 25 housing the compressor 41 with the in-lid space S2. For example, as compared with the case where the lid member 23 has a flat plate shape and does not have the intra-lid space S2, the heat dissipation of the portable case 12 can be improved and noise can be suppressed.

The first case member may be formed, for example, by arranging two square box bodies that open on one surface. In this case, one side wall of the one rectangular box body and one side wall of the other rectangular box body are joined to form a partition wall, and the first storage chamber 25 is formed in the one rectangular box body, and the other square box is formed. The second storage chamber 26 is formed in the box body.

The partition space 27 may be installed on the first short side wall 15c and the second short side wall 15d of the case member 13 to partition the accommodation space S1 in the lateral direction of the case member 13.
The portable compressed air supply device 11 may be used with the lid member 23 opened.

In the portable case 12, the depth F1 of the case member 13 and the depth F2 of the lid member 23 are made different, the case member 13 having the deep depth is used as the first case member, and the lid member 23 having the shallow depth is used as the second. The case member. However, the depths of the first case member and the second case member may be the same, the compressor 41, the tank 36, and the refining equipment may be housed in one of them, and the other may be used as a lid member. Alternatively, the depth of the first case member is made shallower than that of the second case member, and the compressor 41, the tank 36, and the refining equipment are accommodated in the first case member having the shallow depth, and the second case having the deep depth. The member may be a lid member.

The portable case 12 may have a cubic shape instead of a rectangular parallelepiped shape.
The partition wall 27 is fixed to the case member 13 by the bracket 29, but the partition wall 27 may be directly fixed to the case member 13 without using the bracket 29.

As long as the compressor 41 can be supported by the stopper bolts 53 from four directions in a plan view, both side surfaces extending in the longitudinal direction of the compressor 41 may be supported at one place.
One of the first exhaust fan 20a and the second exhaust fan 20b may be omitted.

The number of intake fans that take in air into the first storage chamber 25 may be increased, or the number of exhaust fans that exhaust air from the first storage chamber 25 may be increased.

S2... Inner space of lid as inner space, 12... Portable case, 13... Case member as first case member, 20a... First exhaust fan, 20b... Second exhaust fan, 21... Intake fan for case, 23... Lid member as second case member, 25... First housing chamber, 26... Second housing chamber, 27... Partition wall, 30... Panel, 34... Opening portion, 35... Panel intake fan, 41... Compressor, 47... Mounting legs, 49... Antivibration rubber as antivibration member, 50... First support member, 51... Second support member, 53... Stopper bolt as stopper, 61... Cooler as refining device, 62... Filter as quality equipment, 66... Pressure reducing valve with filter as quality control equipment.

Claims (10)

A portable case configured by connecting the first case member and the second case member via a hinge ,
A first storage chamber and a second storage chamber that are partitioned inside the first case member;
A compressor that is housed in the first housing chamber and discharges compressed air;
A refining device for refining the compressed air discharged from the compressor, the refining device being stored in the second storage chamber;
A panel mounted on the first case member to cover the first storage chamber and the second storage chamber;
An inner space defined inside the portable case between the panel and the second case member, and communicating with the first storage chamber ;
The portable compressed air supply device is configured such that the air in the second storage chamber during operation flows into the internal space and is taken into the first storage chamber . A panel intake fan provided in a portion of the panel that covers the first storage chamber;
The portable compressed air supply device according to claim 1, further comprising an exhaust fan provided in the first case member. The portable compressed air supply device according to claim 2, wherein the exhaust fan is provided in a portion of the first case member that defines the first storage chamber. An intake fan for a case, which is provided in a portion of the first case member that divides the second storage chamber;
The portable compressed air supply machine according to claim 2 or 3, further comprising: an opening that communicates an inner side and an outer side of the second storage chamber via the panel. The portable device according to claim 4, wherein the conditioning device is a cooler that cools the compressed air, and the case intake fan is installed in the first case member in a state of facing the cooler. Compressed air supply machine. The portable compressed air supply device according to any one of claims 1 to 5, wherein the panel is made of metal. A mounting plate to which the mounting leg of the compressor is mounted, and which is fixed to the first case member inside the first housing chamber;
A vibration damping member interposed between the mounting plate and the mounting leg portion,
In a plan view of the compressor overlaid with the mounting plate, the support member is arranged in four directions surrounding the compressor, and fixed to the mounting plate,
The portable compression according to any one of claims 1 to 6, further comprising: a stopper that is interposed between opposed surfaces of the support member and the compressor and that can come into contact with the compressor. Air supply machine. The portable compressed air supply device according to claim 7, wherein the mounting plate is a partition wall that partitions the first case member into the first storage chamber and the second storage chamber. The portable compressed air supplier according to any one of claims 1 to 8, wherein the portable case is made of resin. The portable compressed air feeder according to any one of claims 1 to 9, wherein the first storage chamber is located above the second storage chamber.