Air conditioning unit housing for railway vehicles, air conditioning unit for railway vehicles, and railway vehicles

Abstract

To provide an air conditioner housing for a railway vehicle which includes a structure capable of reducing vibration while reducing the number of strength components.SOLUTION: An air conditioner housing for a railway vehicle includes an indoor part and an outdoor part. The outdoor part has: a first bottom plate having a first raised part extending along a first direction; a second bottom plate having a second raised part extending along the first direction; a first directional beam positioned on at least any one of the first bottom plate and the second bottom plate and extending along the first direction; and a second directional beam positioned on the first bottom plate and the second bottom plate and extending along the second direction orthogonal to the first direction. The first raised part of the first bottom plate and the second raised part of the second bottom plate are connected to each other.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] Embodiments of the present invention relate to a housing for a railway vehicle air conditioner, a railway vehicle air conditioner, and a railway vehicle.

Background Art

[0002] In order to facilitate the assembly of a railway vehicle air conditioner (hereinafter also referred to as an air conditioner) and to make parts common, the unitization of a housing for a railway vehicle air conditioner (hereinafter also referred to as a housing) has been promoted. In this case, in order to suppress the transmission of vibrations generated during the running of a railway vehicle to the air conditioner, it is required to increase the rigidity of the housing while reducing the number of parts of the housing. However, the housing includes strength parts having different configurations depending on the railway vehicle to which the air conditioner is attached. Therefore, it is difficult to unify the parts of the housing.

[0003] Also, in a housing for a railway vehicle air conditioner, it is required to have a structure in which the devices inside the air conditioner are less likely to vibrate. However, if the unified housing parts are not suitable for a specific railway vehicle, there is a possibility that vibrations cannot be sufficiently suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] To provide a housing for a railway vehicle air conditioner having a structure capable of reducing vibrations while reducing the number of strength parts.

Means for Solving the Problems

[0006] The railway vehicle air conditioning system housing according to this embodiment comprises an interior and an exterior. The exterior includes a first bottom plate having a first rising portion extending in a first direction, a second bottom plate having a second rising portion extending in the first direction, a first direction beam located on at least one of the first and second bottom plates and extending in the first direction, and a second direction beam located on the first and second bottom plates and extending in a second direction perpendicular to the first direction. The first rising portion of the first bottom plate and the second rising portion of the second bottom plate are connected to each other. [Brief explanation of the drawing]

[0007] [Figure 1] A schematic side view showing a railway vehicle according to one embodiment. [Figure 2] A perspective view showing an air conditioning system for a railway vehicle according to one embodiment. [Figure 3] A plan view showing an air conditioning system for a railway vehicle and a housing for the air conditioning system for a railway vehicle according to one embodiment. [Figure 4] A perspective view showing a first base plate, a first riser, a second base plate, and a second riser according to one embodiment. [Figure 5] A perspective view showing a first base plate, a second base plate, a first directional beam, and a second directional beam according to one embodiment. [Figure 6] A plan view showing a modified example of an air conditioning unit housing for railway vehicles. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described below with reference to the drawings. These embodiments are not intended to limit the present invention.

[0009] In this specification, terms such as "parallel," "orthogonal," and "identical," as well as values ​​of length and angle, which specify shapes, geometric conditions, and their degrees, shall not be limited to their strict meanings, but shall be interpreted to include a range that can be expected to function similarly.

[0010] To clarify the directional relationships between drawings, some drawings show the first direction DA, the second direction DB, and the third direction DC as common directions across the drawings. In each direction, the tip of the arrow is the first side. In each direction, the side opposite to the first side is the second side. Arrows pointing away from the drawing in a direction perpendicular to the drawing's surface are indicated by a symbol with an "x" inside a circle, as shown in Figure 1, for example. Arrows pointing away from the drawing in a direction perpendicular to the drawing's surface are indicated by a symbol with a dot inside a circle, as shown in Figure 3, for example.

[0011] Figure 1 shows a railway vehicle 100 having a railway vehicle air conditioning system 1 according to this embodiment. The railway vehicle 100 is located on a track R. Sleepers (not shown) supporting the track R extend along a first direction DA. The track R extends along a second direction DB perpendicular to the first direction DA. Multiple sleepers are provided at intervals along the second direction DB. The railway vehicle 100 is movable along the track R in the second direction DB. In this case, the direction of the sleepers is the first direction DA, and the direction of travel is the second direction DB. Examples of railway vehicles 100 include electric trains, diesel railcars, locomotives, passenger cars, etc. In the illustrated example, the railway vehicle 100 is an electric train. The railway vehicle has a pantograph 105.

[0012] In the example shown in Figure 1, the railway vehicle 100 has multiple (in this case, two) air conditioning units 1. The air conditioning units 1 are installed on the roof 101 of the railway vehicle 100. The multiple air conditioning units 1 are spaced apart from each other in a second direction DB. The air conditioning units 1 adjust the temperature, humidity, airflow, etc., of the air in the interior space of the railway vehicle 100. The air conditioning units 1 may exchange the air in the interior space of the railway vehicle 100 with the air outside the railway vehicle 100. That is, the air conditioning units 1 may have a ventilation function. The air conditioning units 1 may also have an air purification function in the interior space of the railway vehicle 100. In Figure 1, the explanation uses a distributed system in which multiple air conditioning units are installed on the roof, but it can also be applied to a centralized system in which they are all integrated into one unit. Furthermore, it can be applied not only to roof installation but also to underfloor installation.

[0013] The air conditioning unit 1 comprises a housing 10 and equipment 50 housed within the housing 10. The housing 10 has an indoor section 10a and an outdoor section 10b. The indoor section 10a and the outdoor section 10b are separated by a partition plate 15. The partition plate 15 extends upward from the roof of the railway vehicle 100 along the first direction DA. As a result, as shown in Figure 1, in the air conditioning unit 1 installed on the roof 101 of the railway vehicle 100, the indoor section 10a and the outdoor section 10b are adjacent in the second direction DB via the partition plate 15. In Figure 1, the partition plate 15 is shown by a dashed line within the air conditioning unit 1. In each air conditioning unit 1, the indoor section 10a is located further to the first side SB1 in the second direction DB than the outdoor section 10b. The housing 10 may be manufactured by combining metal components such as iron or aluminum.

[0014] In the example shown in Figure 1, the equipment 50 is housed in the outdoor area 10b of the housing 10. The equipment 50 is also housed in the indoor area 10a of the housing 10. Multiple pieces of equipment 50 may be housed in the housing 10. Examples of equipment 50 include heat exchangers, blowers, compressor units, etc. The equipment 50 housed in the outdoor area 10b may include an outdoor heat exchanger 51, an outdoor blower 52, and a compressor unit 53. The equipment housed in the indoor area 10a may include an indoor blower and an indoor heat exchanger. In the air conditioning system 1, a refrigerant circulates between the outdoor heat exchanger 51 and the indoor heat exchanger. The refrigerant transfers heat between the outdoor heat exchanger 51 and the indoor heat exchanger.

[0015] The outdoor heat exchanger 51 performs heat exchange between the outside air and the refrigerant. The indoor heat exchanger performs heat exchange between the air in the interior space of the railway vehicle 100 and the refrigerant. The outdoor blower 52 forms an airflow that promotes heat exchange with the outside air. The indoor blower forms an airflow that promotes heat exchange with the air in the interior space and supplies the heat-exchanged air to the interior space of the railway vehicle 100. The compressor unit 53 compresses the refrigerant. By compressing the refrigerant, the compressor unit 53 promotes the circulation of the refrigerant between the outdoor heat exchanger 51 and the indoor heat exchanger.

[0016] The housing 10 that houses the machine 50 may be covered from above by a cover 60. The cover 60 may have a cover opening (not shown) for allowing air to flow into the outside portion 10b of the housing 10. The cover opening (not shown) may be provided corresponding to the positions of the outdoor heat exchanger 51 and the outdoor blower 52 housed in the outside portion 10b. The cover 60 may be manufactured, for example, by combining metal members such as iron and aluminum.

[0017] In FIGS. 1 and 3, the center of gravity P of the air conditioner 1 is indicated by a dot. As shown in FIG. 1, the center of gravity P of each air conditioner 1 is located on the outside portion 10b side of the partition plate 15 of the housing 10.

[0018] Referring to FIGS. 2 to 5, the configuration of the housing 10 will be described. Among FIGS. 2 to 5, except for FIG. 3, the machine 50 housed in the housing 10 is omitted. Also in FIG. 3, the machines housed in the inside portion 10a are omitted.

[0019] As shown in FIG. 3, the housing 10 has a plurality of wall portions 11, 12 that surround the internal space of the housing 10. Specifically, the housing 10 has a pair of first wall portions 11 that extend along the first direction DA, and a pair of second wall portions 12 that extend along the second direction DB. The first wall portions 11 and the second wall portions 12 both extend parallel to the third direction DC. The pair of first wall portions 11 defines the accommodation space of the housing 10 in the second direction DB. The pair of second wall portions 12 defines the accommodation space of the housing 10 in the first direction DA. In plan view, the housing 10 has a longitudinal direction in the second direction DB. Note that in FIG. 2, a part of the first wall portion 11 and a part of the second wall portion 12 are omitted.

[0020] As shown in FIGS. 2 and 3, a plurality of mounting legs 13 may be provided at the edges of the pair of second wall portions 12, respectively. In each second wall portion 12, a plurality of mounting legs 13 are provided at intervals in the second direction DB. The mounting legs 13 extend in the first direction DA so as to be away from the center line LM of the housing 10 in the first direction DA. The mounting legs 13 are provided with holes 13a through which fastening components such as screws can pass. The air conditioner 1 is mounted on the roof 101 of the railway vehicle 100 by fastening components.

[0021] As described above, the housing 10 has an interior portion 10a and an exterior portion 10b. The interior portion 10a and the exterior portion 10b are partitioned by a partition plate 15. The interior portion 10a and the exterior portion 10b are adjacent to each other via the partition plate 15. As shown in FIG. 2, the partition plate 15 extends along the first direction DA.

[0022] The exterior portion 10b has a first bottom plate 21, a second bottom plate 22, a first-direction beam 23, and a second-direction beam 24. The first bottom plate 21 has a main surface that extends in the first direction DA and the second direction DB. The second bottom plate 22 has a main surface that extends in the first direction DA and the second direction DB. The first bottom plate 21 and the second bottom plate 22 support the equipment 50 housed in the exterior portion 10b from below. The first bottom plate 21 and the second bottom plate 22 support the first wall portion 11, the second wall portion 12, and the partition plate 15 from below. The first bottom plate 21 and the second bottom plate 22 are arranged adjacent to each other. The main surface of the first bottom plate 21 and the main surface of the second bottom plate 22 are located on the same plane.

[0023] As shown in Figure 2, the first bottom plate 21 is connected to the second wall portion 12 at both edges in the first direction DA. The first bottom plate 21 is connected to the second bottom plate 22 at the edge of the first side SB1 in the second direction DB. The first bottom plate 21 is connected to the first wall portion 11 at the second side edge in the second direction DB. The second bottom plate 22 is connected to the second wall portion 12 at both edges in the first direction DA. The second bottom plate 22 is connected to the partition plate 15 at the edge of the first side SB1 in the second direction DB. The second bottom plate 22 is connected to the first bottom plate 21 at the second side edge in the second direction DB.

[0024] The first bottom plate 21 and the second bottom plate 22 will be described in more detail with reference to Figures 3 and 4. Figure 4 is a perspective view showing the second side portion in the first direction DA of the connecting portion between the first bottom plate 21 and the second bottom plate 22. In Figure 4, other members of the exterior 10b, excluding the first bottom plate 21 and the second bottom plate 22, are omitted.

[0025] As shown in Figure 4, the first base plate 21 has a first rising portion 31 extending along the first direction DA. The second base plate 22 has a second rising portion 32 extending along the first direction DA. In the illustrated example, both the first rising portion 31 and the second rising portion 32 extend in the first direction DA and the third direction DC. The first rising portion 31 may be formed by bending a portion of the metal plate used to make the first base plate 21 upwards. That is, the first rising portion 31 may be integrated with the first base plate 21. The second rising portion 32 may be formed by bending a portion of the metal plate used to make the second base plate 22 upwards. That is, the second rising portion 32 may be integrated with the second base plate 22.

[0026] As shown in Figure 4, the first rising portion 31 and the second rising portion 32 overlap so as to be in contact with each other in the second direction DB. As shown in Figure 3, the first rising portion 31 and the second rising portion 32, which overlap each other in the second direction DB, are connected to each other. The first rising portion 31 and the second rising portion 32 may be connected, for example, by spot welding, or by fastening fasteners such as screws.

[0027] In the example shown in Figure 3, the connecting surface CP between the first rising section 31 and the second rising section 32 extends in the first direction DA in a plan view (observed from above). The connecting surface CP consists of the surfaces where the first rising section 31 and the second rising section 32 are in contact with each other. The connecting surface CP between the first rising section 31 and the second rising section 32 may be located at the center of gravity P (as described above) of the air conditioning unit 1 in a plan view.

[0028] The second bottom plate 22 is located on the first side SB1 in the second direction DB than the first bottom plate 21. In other words, the second bottom plate 22 is located between the first bottom plate 21 and the interior 10a in the second direction DB.

[0029] The height of the first rise 31, i.e., its length in the third direction DC, may be constant along the first direction DA. Similarly, the height of the second rise 32 may be constant along the first direction DA. Alternatively, as shown in Figure 4, the heights of the first rise 31 and the second rise 32 may vary along the first direction DA. Furthermore, as shown in Figure 4, the first base plate 21 may have a portion along the first direction DA where the first rise 31 is not provided. The second base plate 22 may have a portion along the first direction DA where the second rise 32 is not provided. As shown by dashed lines in Figure 4, a second direction beam 24 may be provided in the portion where neither the first rise 31 nor the second rise 32 is provided.

[0030] The first rise 31 and the second rise 32 may have different shapes. However, from the viewpoint of facilitating connection, it is preferable that the first rise 31 and the second rise 32 have the same shape. That is, the height of the first rise 31 and the height of the second rise 32 may be the same. In the illustrated example, the first rise 31 and the second rise 32 have the same shape in a side view (observed from either side in the second direction DB).

[0031] As shown in Figures 2 and 3, the first directional beam 23 extends linearly along the first direction DA. The first directional beam 23 may have a hollow cross-section perpendicular to its longitudinal direction. The first directional beam 23 may be, for example, a square pipe. The first directional beam 23 is located on the second base plate 22. The first directional beam 23 suppresses deformation of the second base plate 22 in the first direction DA. The first directional beam 23 can also function as a base for supporting the equipment 50. The first directional beam 23 may also be located on the first base plate 21. Both ends of the first directional beam 23 are connected to a pair of second directional beams 24, respectively. However, this is not limited to this, and each end of the first directional beam 23 extending along the first direction DA may be connected to, for example, the second wall 12. The first directional beam 23 may be attached to the upper surface of the first base plate 21 or the upper surface of the second base plate 22 by, for example, welding, or they may be connected to each other by fastening components such as screws.

[0032] As shown in Figures 2 and 3, the second directional beam 24 extends linearly along the second direction DB. The second directional beam 24 may have a hollow cross-section perpendicular to its longitudinal direction. The second directional beam 24 may be, for example, a square pipe. The second directional beam 24 is located on the first base plate 21 and the second base plate 22. That is, the second directional beam 24 extends across both the first base plate 21 and the second base plate 22. The second directional beam 24 suppresses deformation of the first base plate 21 and the second base plate 22 in the second direction DB. The second directional beam 24 can also function as a base for supporting the equipment 50. One end of the second directional beam 24 may be connected to the first wall 11. The other end of the second directional beam 24 may be connected to the partition plate 15. As shown by dashed lines in Figure 4, the second directional beam 24 may be located in the connection portion between the first bottom plate 21 and the second bottom plate 22, in a portion where neither the first rising portion 31 nor the second rising portion 32 is provided. The second directional beam 24 may be attached to the upper surfaces of both bottom plates, the first bottom plate 21 and the second bottom plate 22, for example by welding, or they may be connected to each other by fastening fasteners such as screws.

[0033] As shown in Figures 2 and 3, a pair of second directional beams 24 may be provided. The pair of second directional beams 24 are separated from each other by a distance PA in the first direction DA. In the illustrated example, the first directional beam 23 connects the pair of second directional beams 24 to each other. By connecting the pair of second directional beams 24 to each other, the first directional beam 23 divides the area of ​​the exterior 10b located between the pair of second directional beams 24 in the first direction DA into a first region AR1 and a second region AR2. The second region AR2 is adjacent to the first region AR1 from the first side SB1 in the second direction DB. The first directional beam 23 and the second directional beam 24 may be connected to each other, for example, by welding.

[0034] As shown in Figure 5, ventilation holes 25 may be formed in the second direction beam 24. The ventilation holes 25 add airflow into the exterior 10b. In the example shown in Figure 5, the ventilation holes 25 are formed in each of the pair of second direction beams 24. In each second direction beam 24, in Figure 5, the ventilation holes 25 consist of a plurality of inner ventilation holes 251 provided on the inner surface in the first direction DA (the side approaching the center line LM in the first direction DA of the exterior 10b) and a plurality of outer ventilation holes 252 provided on the outer surface in the first direction DA (the side away from the center line LM in the first direction DA of the exterior 10b). The ventilation holes 25 penetrate the second direction beam 24 into the first direction DA. Although not shown in Figure 5, the ventilation holes 25 may also be formed in the first direction beam 23. In this case, the ventilation holes 25 may be formed in at least one of the first direction beam 23 and the second direction beam 24.

[0035] As shown in Figure 5, the inner ventilation holes 251 may include a first inner ventilation hole 251a and a second inner ventilation hole 251b. The length of the first inner ventilation hole 251a in the second direction DB is shorter than the length of the second inner ventilation hole 251b in the second direction DB, but the shape is not limited to this. The position in which the first inner ventilation hole 251a is provided may correspond to the position in which the outdoor blower 52 is housed in the housing 10. The position in which the second inner ventilation hole 251b is provided may correspond to the position in which the compressor unit 53 is housed in the housing 10.

[0036] As shown in Figure 5, the outer vent 252 is located between the first inner vent 251a and the second inner vent 251b in the second direction DB. This allows air entering from the outer vent 252 to be supplied from both the first inner vent 251a and the second inner vent 251b.

[0037] As shown in Figures 2 and 3, an outdoor fan support section 26 for supporting the outdoor fan 52 is further provided on the outdoor area 10b. The outdoor fan support section 26 is provided on a pair of second directional beams 24. The outdoor fan support section 26 is provided in the first region AR1 of the area of ​​the outdoor area 10b located between the pair of second directional beams 24 in the first direction DA. Because the outdoor fan support section 26 is provided on the pair of second directional beams 24, a gap is provided in the third direction DC between the first bottom plate 21 and the outdoor fan support section 26.

[0038] The outdoor fan support section 26 includes an outdoor fan support plate 27 and a pair of outdoor fan support beams 28 that support the outdoor fan support plate 27. Each of the pair of outdoor fan support beams 28 is supported from below by a pair of second direction beams 24. The outdoor fan support plate 27 is located between the pair of outdoor fan support beams 28 that are spaced apart from each other in the second direction DB. Each of the pair of outdoor fan support beams 28 is positioned on the second direction beams 24 so as to extend in the first direction DA.

[0039] Next, the operation of this embodiment, which has the above configuration, will be described.

[0040] The air conditioning unit 1 is assembled by housing the equipment 50 in the housing 10. An outdoor heat exchanger 51, an outdoor fan 52, and a compressor unit 53 can be housed in the outdoor exterior 10b of the housing 10. The housing 10 housing the equipment 50 may be covered from above by a cover.

[0041] The outdoor heat exchanger 51 is installed on the first bottom plate 21 and the second bottom plate 22. In this embodiment, two outdoor heat exchangers 51 are installed on the first bottom plate 21 and the second bottom plate 22. In Figure 3, the outdoor heat exchanger 51 housed outside the outdoor 10b is shown by a rectangular dashed line. The two outdoor heat exchangers 51 are spaced apart from each other in the first direction DA, with the outdoor blower 52 or compressor unit 53 in between.

[0042] The outdoor fan 52 may be installed on at least one of the first bottom plate 21 and the second bottom plate 22. The outdoor fan 52 may be installed on at least one of the first directional beam 23 and the second directional beam 24. The outdoor fan 52 may be supported from below by the outdoor fan support 26. In this embodiment, the outdoor fan 52 is installed on the outdoor fan support plate 27. The outdoor fan 52 rests on a pair of second directional beams 24 in the first region AR1. With the outdoor fan 52 installed, a gap is provided in the third direction DC between the outdoor fan support 26 and the first bottom plate 21. In Figure 3, the outer diameter RR of the outdoor fan 52 housed in the outdoor area 10b is shown by a circular dashed line.

[0043] The compressor unit 53 may be installed on at least one of the first bottom plate 21 and the second bottom plate 22. The compressor unit 53 may be installed on at least one of the first directional beam 23 and the second directional beam 24. In this embodiment, the compressor unit 53 is installed on the first directional beam 23 and the pair of second directional beams 24. In the second region AR2, the compressor unit 53 rests on the first directional beam 23 and the pair of second directional beams 24. In Figure 3, the compressor unit 53 housed outside the room 10b is shown by a rectangular dashed line.

[0044] The air conditioning unit 1, which houses the equipment 50 in a housing 10, is installed in a railway vehicle 100. As shown in Figure 1, the air conditioning unit 1 is installed on the roof 101 of the railway vehicle 100. The air conditioning unit 1 may be attached to the roof 101 of the railway vehicle 100 via mounting legs 13 provided on the first wall portion 11 of the housing 10. The air conditioning unit 1 may also be attached to the roof 101 of the railway vehicle 100 by screws or the like that passing through holes 13a provided in the mounting legs 13.

[0045] As described above, the air conditioning unit 1 is installed in the railway vehicle 100. Incidentally, in order to make the air conditioning unit easier to assemble and to standardize parts, the unitization of the housing of the air conditioning unit for railway vehicles is being promoted. In this case, since vibrations generated when the railway vehicle is running are transmitted to the air conditioning unit, it is required to reduce the number of parts in the housing while increasing the rigidity of the housing. On the other hand, the housing of the air conditioning unit for railway vehicles also includes strength components that have different configurations depending on the railway vehicle. For this reason, it is desirable to achieve both a reduction in the number of parts and an improvement in rigidity.

[0046] In contrast, in the railway vehicle air conditioning system housing 10 according to this embodiment, the exterior 10b includes a first bottom plate 21 having a first rising portion 31 extending along the first direction DA, and a second bottom plate 22 having a second rising portion 32 extending along the first direction DA. The first rising portion 31 of the first bottom plate 21 and the second rising portion 32 of the second bottom plate 22 are connected to each other. In this specific example, the deformation of the first bottom plate 21 and the second bottom plate 22 in the first direction DA is suppressed by the first rising portion 31 and the second rising portion 32 which are connected to each other. That is, by connecting the first rising portion 31 and the second rising portion 32, the rigidity of the first bottom plate 21 and the second bottom plate 22 is improved. As the rigidity of the first bottom plate 21 and the second bottom plate 22 is improved, the rigidity of the housing 10 in the exterior 10b is improved. That is, in the housing 10, the first bottom plate 21 and the second bottom plate 22 can be used not only as support parts but also as strength parts. This allows the housing 10 to have fewer structural components.

[0047] Furthermore, by improving the rigidity of the first bottom plate 21 and the second bottom plate 22, vibrations of the first bottom plate 21 and the second bottom plate 22 caused by the movement of the railway vehicle 100 can be suppressed. This suppresses vibrations of the equipment 50 inside the housing 10, which is supported from below by the first bottom plate 21 and the second bottom plate 22. Therefore, according to the structure of the railway vehicle air conditioning system housing of this embodiment, vibrations of the housing 10 can be reduced while reducing the number of strength components.

[0048] In the railway vehicle air conditioning system housing according to this embodiment, the exterior 10b is located on at least one of the first bottom plate 21 and the second bottom plate 22 and has a first direction beam 23 that extends along the first direction DA. In this specific example, deformation in the first direction DA can be suppressed in the bottom plate on which the first direction beam 23 is provided. In the example shown in Figure 3, the first direction beam 23 can suppress deformation of the second bottom plate 22 in the first direction DA. As a result, the rigidity of the housing 10 against forces from the first direction DA can be improved in the exterior 10b. Furthermore, by installing the equipment 50 on the first direction beam 23, it is possible to suppress the transmission of vibrations caused by the movement of the railway vehicle 100, etc., to the equipment 50 via the first bottom plate 21 and the second bottom plate 22.

[0049] In the railway vehicle air conditioning system housing according to this embodiment, the exterior 10b is located on the first bottom plate 21 and the second bottom plate 22 and has a second direction beam 24 that extends along the second direction DB. According to this specific example, deformation in the second direction DB can be suppressed in the first bottom plate 21 and the second bottom plate 22. As a result, the rigidity of the housing 10 against forces from the second direction DB can be improved in the exterior 10b. Furthermore, by installing the equipment 50 on the second direction beam 24, vibrations caused by the movement of the railway vehicle 100, etc., can be suppressed from being transmitted to the equipment 50 via the first bottom plate 21 and the second bottom plate 22.

[0050] In the railway vehicle air conditioning system housing according to this embodiment, a pair of second directional beams 24 are provided, and the first directional beam 23 connects the pair of second directional beams 24 to each other. According to this specific example, the deformation of the first bottom plate 21 and the second bottom plate 22 in the second direction DB can be more effectively suppressed by the multiple second directional beams 24. Furthermore, since the pair of second directional beams 24 are connected by the first directional beam 23, the deformation in the first direction DA can be more effectively suppressed in the portion of the bottom plate on which the first directional beam 23 is provided, sandwiched between the pair of second directional beams 24. Therefore, the rigidity of the housing 10 can be improved in the first region AR1 and the second region AR2 sandwiched between the pair of second directional beams 24.

[0051] In the railway vehicle air conditioning system housing according to this embodiment, an outdoor fan support section 26 is provided on the exterior 10b, supporting the outdoor fan 52 on a second directional beam 24. A gap is provided in a third direction DC between the outdoor fan support section 26 and the first bottom plate 21 or the second bottom plate 22. In this specific example, the outdoor fan 52 is held away from the first bottom plate 21 or the second bottom plate 22 in the third direction DC. This makes it possible to suppress the transmission of vibrations caused by the movement of the railway vehicle 100, etc., to the outdoor fan 52 via the first bottom plate 21 and the second bottom plate 22.

[0052] In the railway vehicle air conditioning system according to this embodiment, the center of gravity P of the air conditioning system 1 is located at the connecting surface CP between the first rising section 31 and the second rising section 32 in a plan view. Generally, in air conditioning systems installed on the roof of railway vehicles, the force that deforms the housing acts relatively large near the center of gravity. Therefore, according to this specific example, deformation in the first direction DA can be suppressed in the part where the force that deforms the housing 10 acts relatively large. This suppresses vibration of the housing 10 and effectively suppresses the transmission of vibration to the equipment 50 housed in the housing 10.

[0053] When the air conditioning unit 1 installed on the roof 101 of the railway vehicle 100 is operated, the outdoor fan 52 operates. As a result, an airflow is generated between the outdoor heat exchanger 51 and the outdoor fan 52 in the outdoor area 10b. For example, when the outdoor fan 52 draws out air, the air is drawn in through a cover opening (not shown) and passes through the outdoor heat exchanger 51. The air that has passed through the outdoor heat exchanger 51 moves within the outdoor area 10b and is drawn into the outdoor fan 52. The outdoor fan 52 discharges the air through a cover opening (not shown). As a result, as shown by arrow A1 in Figure 3, an airflow is generated in the outdoor area 10b from the outdoor heat exchanger 51 to the outdoor fan 52. The air flowing along arrow A1 moves towards the outdoor fan 52, crossing either the first directional beam 23 or both the first directional beam 23 and the second directional beam 24. The first directional beam 23 and the second directional beam 24 may affect the airflow between the outdoor heat exchanger 51 and the outdoor fan 52.

[0054] In the railway vehicle air conditioning system housing according to this embodiment, ventilation holes 25 are formed in each of the pair of second directional beams 24. In this specific example, the air flowing between the outdoor heat exchanger 51 and the outdoor blower 52 can also flow through the second directional beams 24, as indicated by arrow A2 in Figures 3 and 5. That is, the ventilation holes 25 can add airflow into the outdoor area 10b. By increasing the amount of air flowing through the outdoor heat exchanger 51, heat exchange in the outdoor area 10b can be promoted. Therefore, according to this specific example, the air conditioning function in the outdoor area 10b can be improved.

[0055] In the railway vehicle air conditioning system according to this embodiment, the outer diameter RR of the outdoor fan 52 is larger than the distance PA between the pair of second directional beams 24 (R>PA). According to this specific example, the air inside the outdoor area 10b can flow between the outdoor heat exchanger 51 and the outdoor fan 52 without crossing the second directional beams 24, as illustrated by arrow A3. This reduces the influence of the first directional beam 23 and the second directional beams 24 on the air flowing along arrow A3. The air can easily move between the outdoor heat exchanger 51 and the outdoor fan 52. Therefore, according to this specific example, the air conditioning function in the outdoor area 10b can be improved.

[0056] (modified version) Next, various modified examples of this embodiment will be described.

[0057] In the specific example of the embodiment described above, the outdoor unit 10b has two bottom plates 21 and 22, each having a raised portion 31 and 32. However, it is not limited to this, and the outdoor unit 10b may have three or more bottom plates, each having a raised portion.

[0058] In the specific example of the embodiment described above, the first riser portion 31 and the second riser portion 32 extend along a first direction DA parallel to the direction in which the sleeper extends. However, the invention is not limited to this, and the first riser portion 31 and the second riser portion 32 may extend along a second direction DB parallel to the direction parallel to the direction of travel of the railway vehicle. That is, the direction of the sleeper may be the second direction DB, and the direction of travel may be the first direction DA.

[0059] In the specific example of the embodiment described above, the pair of second directional beams 24 extend linearly along the first direction DA between the first wall portion 11 and the partition plate 15. However, the shape of the second directional beams 24 is not limited to this. As shown in Figure 6, the pair of second directional beams 24 may each have a first portion 241 and a second portion 242. The widths of the first portions 241 and the widths of the second portions 242 may be different.

[0060] In the example shown in Figure 6, the first portion 241 is located on the second side of the second direction DB than the second portion 242. The second portion 242 is located on the first side SB1 of the second direction DB than the first portion 241. The width PB1 between the first portions 241 that are separated from each other in the first direction DA is smaller than the width PB2 between the second portions 242 that are separated from each other in the first direction DA. According to this specific example, the width between the second direction beams 24 can be changed according to the dimensions of the equipment 50 to be housed outside the room 10b. This makes it possible to easily arrange the equipment 50 while ensuring rigidity.

[0061] While several embodiments have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be implemented in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of symbols]

[0062] 1: Air conditioning unit for railway vehicles, 10: Air conditioning unit housing for railway vehicles, 10a: Interior, 10b: Exterior, 11: First wall, 12: Second wall, 13: Mounting leg, 13a: Hole, 15: Partition plate, 21: First bottom plate, 22: Second bottom plate, 23: First directional beam, 24: Second directional beam, 25: Ventilation hole, 26: Outdoor fan support section, 27: Outdoor fan support plate, 28: Outdoor fan support beam, 31: First riser section, 32: Second riser section, 50: Equipment, 51: Outdoor heat exchanger, 52: Outdoor fan, 53: Compressor Unit, 60: Cover, 100: Railway vehicle, 101: Roof, 105: Pantograph, 241: First part, 242: Second part, 251: Inner ventilation hole, 251a: First inner ventilation hole, 251b: Second inner ventilation hole, 252: Outer ventilation hole, AR1: First area, AR2: Second area, CP: Coupling surface, DA: First direction, DB: Second direction, DC: Third direction, LM: Centerline, P: Center of gravity, PA: Spacing, PB1: Width, PB2: Width, R: Track, SA1: First side, SB1: First side, SC1: First side

Claims

1. A railway vehicle air conditioning system housing comprising an indoor section and an outdoor section, The exterior of the aforementioned room is, A first bottom plate having a first rising portion extending along a first direction, A second bottom plate having a second rising portion extending along the first direction, A first directional beam is located on at least one of the first bottom plate and the second bottom plate and extends along the first direction, It has a second direction beam located on the first bottom plate and the second bottom plate, extending along a second direction perpendicular to the first direction, A railway vehicle air conditioning system housing, wherein the first raised portion of the first bottom plate and the second raised portion of the second bottom plate are connected to each other in a state where they overlap and are in contact with each other in the second direction.

2. The railway vehicle air conditioning system housing according to claim 1, wherein ventilation holes are formed in at least one of the first directional beam and the second directional beam.

3. The second directional beams are provided in pairs, The housing for a railway vehicle air conditioning system according to claim 1, wherein the first directional beam connects the pair of second directional beams to each other.

4. An outdoor fan support section for supporting the outdoor fan is provided on the second directional beam. The railway vehicle air conditioning system housing according to claim 1, wherein a gap is provided between the outdoor fan support portion and the first bottom plate or the second bottom plate.

5. The second directional beams are provided in pairs, Each of the pair of second directional beams has a first portion and a second portion, The railway vehicle air conditioning unit housing according to claim 1, wherein the widths of the first parts and the widths of the second parts are different from each other.

6. A railway vehicle air conditioning system comprising a housing for a railway vehicle air conditioning system according to any one of claims 1 to 5.

7. The railway vehicle air conditioning system according to claim 6, wherein the center of gravity of the railway vehicle air conditioning system is located at the connection portion between the first riser and the second riser in a plan view.

8. A housing for a railway vehicle air conditioning system according to any one of claims 1 to 5, Equipped with an outdoor fan, The second directional beams are provided in pairs, An air conditioning system for railway vehicles, wherein the outer diameter of the outdoor fan is greater than the distance between the pair of second directional beams.

9. A railway vehicle equipped with the railway vehicle air conditioning system described in claim 6.

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