Underfloor mounting device for rail cars

Abstract

To provide an underfloor mounting device for rail cars that protects internal equipment inside the chassis from impact caused by collisions of foreign objects.SOLUTION: An underfloor mounting device for rail cars has a chassis that is mounted under the floor of a rail car and stores internal equipment that stores electrical energy, and a reinforcement member that is installed along the lower edge of at least the first area inside the chassis where the internal equipment is stored, for increasing the strength of the first area of the chassis.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE An embodiment of the present invention relates to an underfloor mounting device for a rail vehicle. [Background technology]

[0002] Underfloor mounted devices for railway vehicles are generally installed by being suspended under the floor of the railway vehicle. Underfloor mounted devices for railway vehicles may be damaged by collisions with foreign objects such as animals or cars entering railway crossings, and such collisions may affect the internal equipment of the underfloor mounted devices. Some devices detect a collision with a sensor and activate a protective device to stop the flow of electricity to the internal equipment, but storage batteries and capacitors are likely to store electrical energy even when the flow of electricity is stopped, so there is a risk of fire or leakage due to a collision. Therefore, a housing shape is required that will not affect the internal equipment even if a collision with a foreign object occurs. In addition, it is also necessary to consider how to extinguish a fire in the unlikely event that a fire occurs.

[0003] In the conventional technology, a gap is provided between the housing of the underfloor mounted device and the internal equipment so that deformation of the housing does not affect the internal equipment in the event of a collision with a foreign object. However, since the space under the floor is limited and miniaturization is desired, it is desirable to reduce the gap provided in the housing. In addition, there are cases where the walls of the housing are thickened to increase the strength of the entire housing, and the housing is designed to be designed to minimize deformation of the housing due to a collision with a foreign object and not affect the internal equipment, but there is a problem that thickening the walls of the housing increases the weight of the entire device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-86642 A Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide an underfloor mounting device for a railway vehicle that protects internal equipment stored in a housing from impacts caused by collisions of foreign objects. [Means for solving the problem]

[0006] The under-floor mounting device for railway vehicles of this embodiment is mounted under the floor of the railway vehicle and comprises a housing that houses internal equipment that stores electrical energy, and a reinforcing member that is installed along the lower edge of at least a first area inside the housing in which the internal equipment is stored, for increasing the strength of the first area of ​​the housing. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of an underfloor mounting device for a railway vehicle according to a first embodiment. FIG. [Diagram 2] 2 is a cross-sectional view taken along the dashed line in FIG. 1, as viewed from the X direction. [Diagram 3] 3 is a cross-sectional view showing a state in which an inspection cover of the underfloor mounting device for railway vehicles in FIG. 2 is opened. [Figure 4] 1 is a perspective view showing a part of an underfloor mounting device for a railway vehicle according to a first embodiment. FIG. [Diagram 5] 1 is a configuration diagram of an underfloor mounting device for railway vehicles in which a reinforcing member according to a first embodiment is fastened to a housing with bolts. [Figure 6] FIG. 13 is a diagram illustrating an example in which the housing is configured as a single housing, and the inside is divided into a first area and a second area by a partition. [Figure 7] 5A to 5C are diagrams illustrating how force is transmitted to the second housing when a foreign object collides with the first housing in the first embodiment. [Figure 8] 13 is a diagram of an underfloor mounting device for railway vehicles, showing a state in which a reinforcing member according to a second embodiment is in contact with a housing. FIG. [Figure 9] FIG. 11 is a configuration diagram of an underfloor mounting device for railway vehicles in which a reinforcing member according to a second embodiment is fastened to a housing with bolts. [Figure 10] 13 is a view showing how a reinforcing member according to a second embodiment is fastened with a bolt via an inspection cover. FIG. [Figure 11] 13 is a view showing how a bent portion of a bottom wall is fastened to a reinforcing member with a bolt according to the third embodiment. FIG. [Figure 12] FIG. 11 is a configuration diagram of an underfloor mounting device for a railway vehicle according to a fourth embodiment. [Figure 13] FIG. 13 is a diagram showing a state in which an extinguishing agent is discharged from a fire extinguisher in a fourth embodiment. [Figure 14] FIG. 4 is a diagram illustrating the configuration of a clamp mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment for carrying out the invention will be described.

[0009] The underfloor mounting device for railway vehicles of the first embodiment will be described with reference to Figs. 1 to 5. Fig. 1 is an external perspective view of the underfloor mounting device. Fig. 2 is a cross-sectional view of the underfloor mounting device of Fig. 1 cut along the dashed line and viewed from the X direction. Fig. 3 is a cross-sectional view showing a state in which an inspection cover of the underfloor mounting device for railway vehicles of Fig. 2 is opened. Fig. 4 is a perspective view showing a part of the underfloor mounting device. Fig. 5 is a view showing a state in which a reinforcing member 3 is fixed to a first housing 1 with a bolt 11.

[0010] 1, the underfloor mounting device has a first housing 1 and a second housing 2 that are adjacent to each other along the front-rear direction of a traveling direction 7 of a railway vehicle (6 shown in the figure). The first housing 1 and the second housing 2 are suspended and fixed to the underfloor of the railway vehicle by a fixture 15.

[0011] As shown in Fig. 2, an internal device 9 storing electric energy is stored inside the first housing 1. A mounting portion 10 is fixed inside the first housing 1, and the first internal device 9 is mounted and fixed on this mounting portion 10. As shown in Fig. 2, there is the mounting portion 10 fixed to the bottom surface of the first housing, and the internal device 9 is fixed on the mounting portion 10. In addition, an internal device fixing tool 16 is fixed to a rib (not shown) fixed to the top surface of the first housing, and the top surface of the internal device 9 is fixed to the internal device fixing tool 16, so that the internal device 9 is fixed while suppressing vibration. Furthermore, the internal device 9 may be fixed not only to the bottom surface and the top surface, but also to the side surfaces.

[0012] The first internal device 9, which is composed of a storage battery, a capacitor, etc., needs to be strong enough to withstand external shocks, but also requires measures to prevent external shocks from affecting the internal device 9. For this reason, the first internal device 9 is fixed in place while maintaining a predetermined gap 100 from the wall surface of the first housing 1.

[0013] As shown in Figs. 1 and 4, the first housing 1 is a rectangular housing, and a fastener 15 for fixing to the underfloor of a railroad car is fixed to its top plate 201 by welding. The first housing 1 is not limited to a rectangular shape, and may be trapezoidal. The fixing method is not limited to welding, and may be fixed by bolts / nuts. In addition, a right side plate 204, a rear plate 205, and a front plate 206 are fixed to the top plate 201 by welding on three sides, namely, the front and rear in the traveling direction 7 of the railroad car, and the right side in the traveling direction 7. These side plates and the front and rear plates may also be fixed by bolts / nuts, and not limited to welding. Furthermore, a bottom plate 202 is fixed to the bottom surface of the first housing 1.

[0014] On the other hand, as shown in FIG. 3, an opening (inspection hatch) 20 is formed on the left side surface in the travel direction 7 of the railcar in order to perform maintenance work efficiently. This opening 20 is provided with a left side panel 203, which is an inspection cover that can be opened and closed by rotating up and down on a hinge (not shown) on a top panel 201. The structure for opening and closing this opening is not limited to a hinge, and may be a lid hook or the left side panel 203 may be fixed with a bolt. This left side panel 203 is fixed to the front panel 206, the rear panel 205, and the bottom panel 202 by fastening parts with the opening 20 closed during normal times (when not under maintenance). The fastening parts are, for example, fixed to weld nuts 12 or rivet nuts (not shown) attached to the front panel 206, the rear panel 205, and the bottom panel 202, respectively, by bolts (not shown), thereby forming the first housing 1. In this way, by removing the bolts from the left side plate 203 and rotating the left side plate 203 as shown in the figure, the opening 20 can be opened and maintenance of the internal equipment 9 can be performed.

[0015] Furthermore, as described below, even when a fire extinguisher 5 is installed inside the first housing 1, when performing maintenance such as replacing the fire extinguisher 5, the opening 20 can be opened by removing the bolts on the left side panel 203 and rotating the left side panel 203, thereby allowing maintenance to be performed.

[0016] 4, a reinforcing member 3 having an L-shaped cross section is provided at a corner formed by left side panel 203 and bottom panel 202 on the lateral side of the railcar. This L-shaped reinforcing member 3 has a length that reaches from front panel 206 to rear panel 205 on the inner surface of first housing 1. Furthermore, a longitudinal end of L-shaped reinforcing member 3 is bent 90 degrees outward (upward), so that bent portions 231 and 232 face front panel 206 and rear panel 205. Furthermore, a side surface of L-shaped reinforcing member 3 is bent 90 degrees outward, so that bent portion 230 faces bottom panel 202.

[0017] In addition, holes through which the bolts 11 pass are formed in the bent portions 230, 231, and 232 of the reinforcing member 3, and holes are also formed in the bottom plate 202, the front plate 206, and the rear plate 205 at positions corresponding to the holes. Weld nuts 12 (not shown) are fixed to the outside of the housing at positions corresponding to the holes in the bottom plate 202, the front plate 206, and the rear plate 205, and as shown in FIG. 5, the reinforcing member 3 is fixed to the bottom plate 202, the front plate 206, and the rear plate 205 by the bolts 11 and the weld nuts 12 through the holes from the reinforcing member 3 side (inside the housing). This allows the strength of the lower left end of the first housing 1 in the traveling direction 7 of the railroad car to be increased by the reinforcing member 3. As a result, as shown by the arrow 8 in FIG. 2, the internal equipment 9 stored inside the first housing 1 can be protected as much as possible even if a foreign object such as an animal or a car collides with the left side in the traveling direction 7 of the railroad car.

[0018] Furthermore, since the reinforcing member 3 is fixed below the storage position of the internal equipment 9, even if a foreign object collides with the reinforcing member 3 from the direction of arrow 8 and the reinforcing member 3 is deformed toward the inside of the first housing 1, the reinforcing member 3 will deform within the gap 100 between the internal equipment 9 and the first housing 1, and the deformed reinforcing member 3 will not collide with the internal equipment 9, thereby reducing the impact of the collision of the foreign object on the internal equipment 9.

[0019] The material constituting the reinforcing member 3 may be any material, but from the viewpoint of ensuring strength, for example, it is formed of a metal member such as stainless steel, iron, aluminum, plated steel sheet, etc. The reinforcing member 3 is made of the same material as the first housing 1, but the strength can be increased by changing the plate thickness. Also, a material different from that of the first housing 1 may be used.

[0020] Next, the second housing 2 in which the second internal device that does not require high strength is stored will be described with respect to the internal device 9 stored in the first housing 1. The second internal device stored in the second housing 2 is a device that is less likely to cause a fire or an electric leakage, such as a control device for a railway vehicle. The second housing 2 in which these second internal devices are stored is arranged in either the front-rear direction or both the front-rear direction of the traveling direction 7 of the railway vehicle with respect to the first housing 1. Although an example in which the second housing is arranged rearward in the traveling direction of the railway vehicle with respect to the first housing is shown in FIG. 1 and FIG. 4, the second housing may be arranged forward in the traveling direction in addition to the rearward. That is, the first housing 1 and the second housing 2 are arranged so as to be adjacent to each other. The first housing 1 and the second housing 2 are connected and fixed (adjacent) to each other by bolts and nuts not shown. The first housing 1 and the second housing 2 are fixed as a unit to the underfloor of the railway vehicle.

[0021] In the above description, the area (first area) housing the internal device storing electric energy is formed independently as the first housing 1, but the first housing 1 and the second housing 2 do not need to be formed separately, and as shown in Fig. 6, the inside of the integrally constructed housing 21 may be divided by a partition plate 22 to form a first storage section (first area) 23 and a second storage section (second area) 24. When one housing 21 is divided by the partition plate 22, a reinforcing member 3 (not shown) may be provided along the lower side of the first area 23 to increase the strength of the first area 23 of the integrally constructed housing 21.

[0022] Next, the way in which the force is transmitted when a foreign object collides will be explained. Figure 7 is a diagram showing the direction in which the force is transmitted when a foreign object collides.

[0023] When an external object collides with the left side panel 203 of the first housing 1 in the lateral direction of the railroad car and an impact as shown by the arrow 8 is applied, the impact is transmitted to the reinforcing member 3 fixed to the bottom panel 202, the left side panel 203, the rear panel 205, and the front panel 206. The impact is applied to the reinforcing member 3 in the lateral direction of the railroad car. The force transmitted in the lateral direction of the railroad car is transmitted to the rear panel 205 of the first housing 1 to which the reinforcing member 3 is fixed, the front panel 211 of the second housing 2 fixed in contact with the rear panel 205 of the first housing 1, and the left side panel 209 of the second housing 2, and the force is distributed to all the surfaces constituting the second housing 2 via those sides. When the impact is strong, the strength of the second housing 2 is weaker than that of the first housing, so the second housing deforms to absorb the impact. As a result, the impact applied to the first internal device 9 such as a storage battery or a capacitor housed inside the first housing 1 is reduced.

[0024] Furthermore, when the impact force from a foreign object is small, the front panel 211, rear panel 212, left side panel 209, right side panel 210 and other walls of the second housing 2 of the railway car are not deformed, and the impact force is absorbed by vibration.

[0025] Providing the reinforcing member 3 on the first housing 1 increases the strength of the first housing 1. Furthermore, by connecting the reinforcing member 3 to the second housing 2, a part of the force of a collision applied to the first housing 1 can be dissipated to the second housing 2, which has a lower strength than the first housing 1. As a result, it is possible to prevent the side panel of the first housing 1 from deforming and applying an impact to the internal device 9.

[0026] Furthermore, with the improvement in the strength of the first housing 1, deformation of the first housing due to a collision can be suppressed, and it becomes unnecessary to provide a wide gap 100 between the first housing 1 and the internal device 9 of the underfloor mounted device, and it is possible to reduce the gap 100 between the first housing 1 and the internal device 9. This makes it possible to reduce the size and weight of the entire underfloor mounted device.

[0027] Next, an underfloor mounting device for a railway vehicle according to a second embodiment will be described with reference to FIGS.

[0028] 8 to 10 are views showing that the reinforcing member 3 is fastened by the bolt 11 via the left side plate 203 constituting the inspection cover. Regarding each part of the second embodiment, the same parts as those of the underfloor mounting device for railway cars of the first embodiment in Fig. 5 are given the same reference numerals and the description will be omitted. The second embodiment differs from the first embodiment in that the reinforcing member 3 is fastened by the bolt 11 via the inspection cover, i.e., the left side plate 203.

[0029] The configuration in which the reinforcing member 3 is fastened and fixed via the inspection cover 203 by the bolts 11 will be described with reference to FIGS.

[0030] The left side panel 203 is provided to also serve as an openable and closable inspection cover 203 that covers the opening 20, which is an inspection hatch. FIG. 8 is a diagram in which the inspection cover 203 is omitted. The reinforcing member 3 is installed along the lower side of the left side panel 203. The side surface (vertical surface) and the flat surface (horizontal surface) of the reinforcing member 3, which has an L-shaped cross section, are bent 90 degrees outward, and the bent portions form a bent portion 230 that is fixed to the bottom panel 202 of the first housing 1 and a bent portion 233 that is fixed to the left side panel 203. In addition, both ends in the longitudinal direction of the reinforcing member 3 are bent 90 degrees upward, and each bent portion forms a bent portion 231 that is fixed to the rear panel 205 and a bent portion 232 that is fixed to the front panel 206.

[0031] In addition, holes through which the bolts 11 pass are formed in the bent portions 230, 231, 232, and 233 of the reinforcing member 3, and holes are also formed in the bottom plate 202, the front plate 206, the rear plate 205, and the left side plate 203 at positions corresponding to the hole portions. Weld nuts 12 (not shown) are fixed to the outside of the housing at positions corresponding to the hole portions of the bottom plate 202, the front plate 206, and the rear plate 205, and the reinforcing member 3 is fixed to the bottom plate 202, the front plate 206, and the rear plate 205 by the bolts 11 and the weld nuts 12 through the holes from the reinforcing member 3 side (inside the housing). In addition, a weld nut 12 (not shown) is fixed to a position corresponding to the hole portion of the bent portion 233 of the reinforcing member 3.

[0032] Fig. 9 is a diagram showing reinforcing member 3 fastened to bottom plate 202, rear plate 205, and front plate 206 with bolts 11. Fig. 8 shows reinforcing member 3 installed along the lower side of left side plate 203 with inspection cover 203 open, with bent portion 230 of reinforcing member 3 fastened to bottom plate 202 with bolts 11, bent portion 231 of reinforcing member 3 fastened to rear plate 205 with bolts 11, and bent portion 232 of reinforcing member 3 fastened to front plate 206 with bolts 11.

[0033] 10 is a diagram showing reinforcing member 3 fastened to left side panel 203, bottom panel 202, rear panel 205, and front panel 206 with bolts 11. For reinforcing member 3 installed along the lower side of left side panel 203 shown in FIG. 9, after inspection cover 203 is closed, bent portion 233 of reinforcing member 3 is fastened to inspection cover 203 with bolts 11 from the outside of inspection cover 203.

[0034] Providing the reinforcing member 3 on the first housing 1 increases the strength of the first housing 1. Furthermore, by connecting the reinforcing member 3 to the second housing 2 via a side panel, a part of the force of a collision applied to the first housing 1 can be dissipated to the second housing 2, which has a lower strength than the first housing 1. As a result, the structure is such that the side panel of the first housing 1 is prevented from deforming and colliding with the internal device 9. Even if the reinforcing member 3 is deformed toward the inside of the first housing 1, the reinforcing member 3 is provided at a position lower than the storage position of the internal device 9 in the first housing 1, and therefore does not affect the internal device 9.

[0035] Furthermore, with the improvement in the strength of the first housing 1, deformation of the first housing 1 due to a collision can be suppressed, and it becomes unnecessary to provide a wide gap 100 between the first housing 1 and the internal device 9 of the under-floor mounted device, and it is possible to reduce the gap 100 between the first housing 1 and the internal device 9. This makes it possible to reduce the size and weight of the entire under-floor mounted device.

[0036] Furthermore, by fastening the bent portion 233 of the reinforcing member 3 with the bolt 11 from the outside of the inspection cover 203, the reinforcing member 3 can be directly fixed to the left side panel 203 that may be hit by a foreign object. As a result, the impact force from a foreign object can be more reliably transmitted to the second housing 2 via the reinforcing member 3.

[0037] Next, a third embodiment of an underfloor mounting device for a railway vehicle will be described with reference to FIG.

[0038] 11 is a diagram showing that the bottom plate 202 of the first housing 1 is extended to the left side surface to form a folded portion 13, and that a bent portion 233 of a reinforcing member 3 is fastened to the folded portion 13 with a bolt 11. The same parts of the third embodiment as those of the underfloor mounting device for railway cars of the first embodiment in FIG. 5 are designated by the same reference numerals. The third embodiment differs from the first embodiment in that the reinforcing member 3 is fastened to the folded portion 13 of the bottom plate 202 of the first housing 1 toward the left side surface with a bolt 11.

[0039] With reference to FIG. 11, a structure in which reinforcing member 3 is fastened and fixed to folded portion 13 of bottom plate 202 of first housing 1 by bolts 11 will be described.

[0040] The bottom plate 202 of the first housing 1 has a folded portion 13 facing the left side plate 203 arranged above. A bent portion 233 of the reinforcing member 3 is fastened to the folded portion 13 with a bolt 11. The bent portion 230 of the reinforcing member 3 is fastened to the bottom plate 202 with the bolt 11, the bent portion 231 of the reinforcing member 3 is fastened to the rear plate 205 with the bolt 11, and the bent portion 232 of the reinforcing member 3 is fastened to the front plate 206 with the bolt 11. After the reinforcing member 3 is fastened with the bolt 11, the inspection cover 203 is closed, and the inspection cover 203 and the folded portion 13 are fastened to the reinforcing member 3 with the bolt 11 to cover the opening 20. The left side plate 203 that opens and closes the maintenance opening 203 may be fixed by a bolt, but may be fixed by a clamp mechanism that locks the door by rotating, as shown in FIG. 14. That is, in Fig. 14, (a) is a diagram showing the clamp mechanism in a closed state, and Fig. 14(b) is a diagram showing the clamp mechanism in an open state. By inserting a shaft such as a screwdriver into a hole provided in the center of the operation unit 25 in Fig. 14(a) and rotating it 90 degrees from the closed side to the open side, the stopper mechanism 26 described in Fig. 14(b) also rotates 90 degrees. This rotation releases the protrusion (part protruding downward) of the internal stopper mechanism from the outer frame of the first housing, allowing the left side panel 203 to be opened. In addition, an elastic watertight packing 27 is provided between the inspection cover 203 and the folded-back portion 13, and the airtightness can be improved by pressing and fixing it so as to sandwich it.

[0041] Providing the reinforcing member 3 on the first housing 1 increases the strength of the first housing 1. Furthermore, by connecting the reinforcing member 3 to the second housing 2 via a side panel, part of the force of a collision applied to the first housing 1 can be dissipated to the second housing 2, which has a lower strength than the first housing 1. As a result, the structure is such that it is possible to prevent the side panel of the first housing 1 from deforming and giving an impact to the internal device 9.

[0042] Furthermore, with the improvement in the strength of the first housing 1, deformation of the first housing 1 due to a collision can be suppressed, and it becomes unnecessary to provide a wide gap 100 between the first housing 1 and the internal device 9 of the under-floor mounted device, and it is possible to reduce the gap 100 between the first housing 1 and the internal device 9. This makes it possible to reduce the size and weight of the entire under-floor mounted device.

[0043] By fastening the bent portion 233 of the reinforcing member 3 to the folded portion 13 of the bottom plate 202 of the first housing 1 with the bolt 11, the reinforcing member 3 can be attached with the inspection cover 203 open.

[0044] A railway vehicle underfloor mounting device according to a fourth embodiment will be described with reference to FIG.

[0045] Fig. 12 is a configuration diagram of an underfloor mounting device for railway vehicles. The same parts of the fourth embodiment as those of the underfloor mounting device for railway vehicles of the first embodiment in Fig. 5 are denoted by the same reference numerals, and the description thereof will be omitted. The fourth embodiment differs from the first embodiment in that a reinforcing member 4 is also provided on the right side plate 204 facing the left side plate 203 of the first housing 1, and a fire extinguisher 5 and a humidity control material 6 are provided in spaces 301 and 302 formed between the reinforcing members 3 and 4 and the first housing 1.

[0046] As shown in Fig. 12, reinforcing members 3 and 4 are provided along the lower sides of both side surfaces of the railway vehicle. Specifically, a first space, 301, is formed between the first housing 1 and the reinforcing member 3 installed along the lower side of the left side plate 203 of the first housing 1. A second space, 302, is formed between the first housing 1 and the reinforcing member 4 installed along the lower side of the right side plate 204 of the first housing 1. A fire extinguisher 5 that releases a fire extinguishing agent when it receives an impact is installed in the space 301. A humidity conditioner 6 is installed in the space 302.

[0047] Next, the manner in which extinguishant is discharged from fire extinguisher 5 into first housing 1 will be described with reference to FIG.

[0048] If a foreign object collides with the reinforcing member 3 and the impact as indicated by the arrow 8 is greater than the reinforcing member 3 can withstand, the first housing 1 may deform, damaging the internal equipment 9 and possibly causing a fire. Therefore, by installing a fire extinguisher 5 in the space 301 formed between the reinforcing member 3 and the first housing 1, a fire extinguishing agent is released into the first housing 1 as indicated by the arrow 14 in Fig. 13 when the first housing 1 deforms. Therefore, even if the storage battery or capacitor should catch fire, the fire can be quickly extinguished, improving safety.

[0049] The fire extinguisher 5 may be one that releases a fire extinguishing agent when it is struck by a foreign object and receives an impact as shown by arrow 8, or one that reacts to heat. The fire extinguishing agent may be liquid, powder, or gas as long as it has a fire extinguishing function. Furthermore, by including an agent that has a temperature lowering effect, the temperature can be lowered even after the fire is extinguished, and re-ignition of the storage battery can be prevented.

[0050] Furthermore, by providing a notch in a part of the upper side of the L-shaped reinforcing member 3, the extinguishing agent can be discharged efficiently.

[0051] Furthermore, it is necessary to periodically inspect and replace the fire extinguisher 5. In this embodiment, the reinforcing member 3 is fastened to the first housing 1 with the bolts 11, so that the reinforcing member 3 can be easily removed, and the inspection and replacement work of the fire extinguisher 5 can be realized simply by removing the reinforcing member 3.

[0052] Furthermore, the reinforcing member 3 may be a pipe with a circular cross section. By using a reinforcing member 3 in the form of a pipe with a circular cross section, the impact can be absorbed by the circular pipe even if foreign objects come from various directions. The reinforcing member 3 may also be a pipe with a rectangular cross section. By using a reinforcing member 3 in the form of a pipe with a rectangular cross section, the fixing surface is made wider, allowing for more solid fixing. When a pipe-shaped reinforcing member is provided, a notch is provided on the upper side, and the fire extinguisher 5 is stored in the space formed by a part of the reinforcing member 3.

[0053] Also, a humidity control material 6 can be provided in the space 302 formed between the reinforcing member 4 and the first housing 1. The inside of the first housing 1 is an airtight space, and condensation occurs due to the temperature difference between the inside of the first housing 1 and the outside air caused by heat from internal devices 9 such as the storage battery and capacitor. The storage battery is housed in a resin case, and the resin case deteriorates due to condensation. By providing the humidity control material 6, it is possible to prevent condensation from occurring and suppress deterioration of the resin case.

[0054] In addition, the fire extinguisher 5 may be installed in the space 301 between the reinforcing member 3 on the left side panel 203 side, which is one of the side panels, and the first housing 1, and the humidity control material 6 may be installed in the space 302 between the reinforcing member 4 on the right side panel 204 side, which is the other side panel, and the first housing 1.

[0055] By providing the fire extinguisher 5, in the unlikely event that the first housing 1 is deformed by a collision with a foreign object, causing damage to the internal equipment 9 and ignition, the fire can be quickly extinguished, thus improving safety. In addition, by providing the humidity adjusting material 6, deterioration of the resin case due to condensation can be suppressed.

[0056] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0057] 1…First housing 2…Second housing 3, 4…Reinforcing members 5...Fire extinguishing equipment 6...Humidity control material 9…First internal device 10...Placement section 11...Bolt 12…Weld nut 13…Folded section 23...First storage section (first area) 24...Second storage section (second area) 301: Space formed between the first housing and the reinforcing member 302: Space formed between the second housing and the reinforcing member

Claims

1. A housing that is mounted under the floor of a rail car and contains an internal device that stores electrical energy; a reinforcing member disposed along a lower side of at least a first region in which the internal device is stored inside the housing, for increasing strength of the first region of the housing; An underfloor mounting device for railway vehicles.

2. The first region of the housing is independently formed as a first housing. The underfloor mounting device for a railway vehicle according to claim 1.

3. The reinforcing member is provided along a lower side of the first housing in a lateral direction of the railcar. The underfloor mounting device for a railway vehicle according to claim 2.

4. The reinforcing member is formed with an L-shaped cross section. The underfloor mounting device for a railway vehicle according to claim 3.

5. a fire extinguishing device installed in a first space formed by the reinforcing member and a part of the first housing; The underfloor mounting device for a railway vehicle according to claim 4 .

6. The reinforcing member has a notch on an upper edge thereof, and a fire extinguishing agent of the fire extinguisher installed inside the reinforcing member is discharged into the first housing through the notch. The underfloor mounting device for a railway vehicle according to claim 5.

7. a humidity conditioner disposed in a second space formed by the reinforcing member and a part of the first housing; The underfloor mounting device for a railway vehicle according to claim 4 .

8. The reinforcing member is formed with an L-shaped cross section and is provided along lower sides of the first housing in both side directions of the railway vehicle, a fire extinguishing device disposed between one of the reinforcing members and the first housing; a humidity control material disposed between the other reinforcing member and the first housing; The underfloor mounting device for a railway vehicle according to claim 4 .

9. The railcar further includes a second housing that is provided adjacent to the first housing in a front-rear direction in a traveling direction of the railcar and that needs to be less strong than the first housing. The underfloor mounting device for a railway vehicle according to claim 2.

10. The reinforcing member provided on the first housing is arranged so as to disperse a force applied from the outside to the first housing to the second housing. The underfloor mounting device for a railway vehicle according to claim 9.

11. The reinforcing member is provided at a position lower than a storage position of the internal device of the first housing. The underfloor mounting device for a railway vehicle according to any one of claims 2 to 10.

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