WO2014132290A1

WO2014132290A1 - Composite heat insulating material unit for railroad vehicle, and railroad vehicle using same

Info

Publication number: WO2014132290A1
Application number: PCT/JP2013/001183
Authority: WO
Inventors: 加藤　英一; 康夫鬼武
Original assignee: 川崎重工業株式会社
Priority date: 2013-02-27
Filing date: 2013-02-27
Publication date: 2014-09-04
Also published as: TW201433485A

Abstract

The present invention prevents noise from being generated during traveling of a vehicle while achieving both high heat insulation performance and good mounting workability in a heat insulating material unit for a railroad vehicle. A composite heat insulating material unit (11) is disposed in a space between a body structure (3) and an interior panel (7) of a railroad vehicle (1), and is provided with a hard heat insulating material (12) and a soft heat insulating material (13) covering both surfaces of the hard heat insulating material (12).

Description

COMPOSITE INSULATION UNIT FOR RAILWAY VEHICLE AND RAILWAY VEHICLE USING THE SAME

The present invention relates to a composite heat insulating material unit for a railway vehicle and a railway vehicle using the same.

Railway vehicles need to maintain the temperature and humidity of the indoor space in an appropriate state in order to maintain passenger comfort. Therefore, even when the railway vehicle travels outdoors, the vehicle body is required to have a predetermined heat insulation performance so that the indoor comfort is not affected by the weather or the outside air temperature. Therefore, in a railway vehicle, a heat insulating material is disposed in a space between the structure and the interior panel (see, for example, Patent Document 1). Since the structure to which the heat insulating material is attached may have a curved shape, a soft heat insulating material is often used so as to follow the curved surface inside the structure.

By the way, in recent years, it is often required to expand the indoor space of a railway vehicle. On the other hand, the outer shape of the structure is strictly limited to prevent the vehicle body from coming into contact with the ground equipment. . However, the soft heat insulating material is often inferior in heat insulating performance as compared with the hard heat insulating material, and if the space in which the soft heat insulating material is disposed becomes narrow, the predetermined heat insulating performance may not be satisfied. On the other hand, when a hard heat insulating material having high heat insulating performance is used, it is difficult to follow a curved surface, and a fixing operation using a fastening member is required, resulting in a decrease in vehicle productivity. Therefore, it has been proposed to form a composite heat insulating material by bonding a soft heat insulating material to the inner surface of the structure and then bonding a hard heat insulating material to the indoor surface of the soft heat insulating material (for example, Patent Document 2). reference).

JP 2006-117133 A JP 9-317044 A

However, according to the configuration of the composite heat insulating material described above, the hard heat insulating material faces the interior panel. Then, when the adhesion of the hard heat insulating material to the soft heat insulating material is poor, or when the hard heat insulating material is disposed close to the interior panel, the hard heat insulating material and the interior panel are There is a possibility that contact noise will be generated between the two and cause noise.

Therefore, an object of the present invention is to suppress noise generation during vehicle travel while achieving both high heat insulation performance and good mounting workability in a heat insulating material unit for railway vehicles.

A composite heat insulating unit for a railway vehicle according to the present invention is a composite heat insulating unit disposed in a space between a structure of a railway vehicle and an interior panel, and includes a hard heat insulating material and both surfaces of the hard heat insulating material. And a soft heat insulating material for covering.

According to the above configuration, since the soft heat insulating material covers both surfaces of the hard heat insulating material, the soft heat insulating material is interposed between the hard heat insulating material and the interior panel. If it does so, even if the situation which a composite heat insulating material repeats a contact to an interior panel will generate | occur | produce by the vibration at the time of vehicle travel, the contact sound which a passenger will be worried does not arise. And since this composite heat insulating material unit uses a hard heat insulating material, its heat insulating performance is high, and since the side facing the structure is a soft heat insulating material, the mounting operation is also simple. Therefore, it is possible to suppress the generation of noise when the vehicle travels while achieving both high heat insulation performance and good mounting workability. In addition, since the composite heat insulating unit has a structure in which soft heat insulating materials and hard heat insulating materials are alternately stacked, noise from outside the vehicle can be well absorbed by the composite heat insulating unit.

As is apparent from the above description, according to the present invention, it is possible to suppress the generation of noise during vehicle travel while achieving both high heat insulation performance and good mounting workability.

It is sectional drawing seen from the front which shows a part of railway vehicle which concerns on 1st Embodiment. It is a side view which shows the state which looked at the side structure and heat insulating material unit of the rail vehicle shown in FIG. 1 from the vehicle inner side. It is sectional drawing to which the lower part of the window part of the rail vehicle shown in FIG. 1 was expanded. It is a top view of the composite heat insulating material unit shown in FIG. It is sectional drawing to which the upper part of the window part of the rail vehicle shown in FIG. 1 was expanded. It is a partial cross section perspective view which shows the composite heat insulating material unit used for the rail vehicle of 2nd Embodiment.

Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
Drawing 1 is a sectional view seen from the front which shows a part of rail car 1 concerning a 1st embodiment. FIG. 2 is a side view showing a state in which the side structure 3 and the heat

insulating material units

11 and 21 of the railway vehicle 1 shown in FIG. 1 are viewed from the vehicle inner side. As shown in FIGS. 1 and 2, the vehicle body 2 of the railway vehicle 1 includes a base frame 8 made of metal (for example, stainless steel) and a metal (for example, an upright from the end in the vehicle width direction of the base frame 8). , Stainless steel, and the like, and an interior panel 7 made of resin (for example, FRP) disposed with a space on the indoor side of the side structure 3. And the

heat insulation units

11 and 21 are provided in the space formed between the side structure 3 and the interior panel 7.

In the side structure 3 and the interior panel 7, a window portion 6 that is an opening portion is formed on the side of the seat 9. The side structure 3 includes an outer plate 4 and a plurality of bone members 5 joined to predetermined portions of the inner surface of the outer plate 4 by welding. The plurality of bone members 5 are provided at predetermined positions such as in the vicinity of the window portion 6 at intervals, and divides the outer plate 4 into a plurality of regions together with the peripheral edge of the window portion 6. Among these regions, composite heat insulating unit 11 described later is individually disposed in each region below the window portion 6, and a single heat insulating material unit 21 described below is disposed in the region above the window portion 6. ing.

FIG. 3 is an enlarged cross-sectional view of the lower portion of the window portion 6 of the railway vehicle 1 shown in FIG. FIG. 4 is a plan view of the composite heat insulating material unit 11 shown in FIG. As shown in FIGS. 3 and 4, below the window portion 6, the composite heat insulating unit 11 is adhered to the inner surface on the indoor side of the side structure 3 with an adhesive (not shown). Separated. And the clearance gap between the composite heat insulating unit 11 and the interior panel 7 is made into the air-conditioning flow path 16 through which the hot air from the heater (not shown) arrange | positioned under a vehicle body passes by natural convection, for example. The outer plate 4 includes a curved portion 4a that is curved in the vehicle width direction at a part from the upper side to the lower side below the window portion 6, and

flat portions

4b and 4c that are adjacent to the curved portion 4a in the vertical direction. Yes. The composite heat insulating unit 11 is arranged on the indoor side of the outer plate 4 so as to cover the curved portion 4a and the

flat portions

4b and 4c adjacent to the upper and lower sides thereof.

The composite heat insulating unit 11 includes a hard heat insulating material 12, a soft heat insulating material 13 that covers both surfaces of the hard heat insulating material 12, and an outer packaging material 14 that wraps them together. The hard heat insulating material 12 is formed by foamable resin, such as a phenol foam, for example. The hard heat insulating material 12 is divided into a plurality (four in this example) in the vertical direction, and is not divided in the vehicle longitudinal direction. That is, the hard heat insulating material 12 is divided only in one direction (vertical direction) (in other words, the dividing line extends only in the longitudinal direction of the vehicle). The divided hard heat insulating material 12 is arranged so that its longitudinal direction substantially coincides with the vehicle longitudinal direction. And the divided | segmented hard heat insulating material 12 is divided | segmented so that the length L2 of the 1st hard heat insulating material 12A divided | segmented so that the length L1 of an up-down direction may become short, and the length L2 of an up-down direction may become long. Hard heat insulating material 12B is included (L1 <L2). A plurality (two in this example) of first hard heat insulating materials 12A are provided, and one second hard heat insulating material 12B is provided above and below each of the first hard heat insulating materials 12A.

The soft heat insulating material 13 is formed of a fibrous material such as glass wool, for example. The soft heat insulating material 13 collectively covers the hard heat insulating material 12 divided into a plurality, and wraps the entire hard heat insulating material 12. The hard heat insulating material 12 and the soft heat insulating material 13 are in contact with each other in a non-bonded state, and the hard heat insulating material 12 is held by being sandwiched by the soft heat insulating material 13 from both sides thereof. The soft heat insulating material 13 located on the one surface side of the hard heat insulating material 12 and the soft heat insulating material 13 located on the other surface side of the hard heat insulating material 12 have substantially the same thickness. The thickness obtained by adding the soft heat insulating material 13 on both sides of the hard heat insulating material 12 is larger than the thickness of the hard heat insulating material 12.

The outer packaging material 14 is formed of, for example, an opaque noncombustible sheet such as aluminum foil. The outer packaging material 14 wraps the entire soft heat insulating material 13 covering both surfaces of the hard heat insulating material 12, and a predetermined portion is fastened by a bonding material (adhesive tape or the like) so as to maintain the wrapped state. Since the outer packaging material 14 is a flexible sheet, it easily follows the deformation of the soft heat insulating material 13 and deforms.

The composite heat insulating material unit 11 is bent at a divided portion of the hard heat insulating material 12 so as to follow the shape of the curved portion 4 a of the outer plate 4 and bonded to the inner surface of the outer plate 4 on the indoor side. That is, the composite heat insulating material unit 11 is disposed such that the first hard heat insulating material 12A corresponds to the curved portion 4a and the second hard heat insulating member 12B corresponds to the

flat portions

4b and 4c.

FIG. 5 is an enlarged cross-sectional view of the upper portion of the window portion 6 of the railway vehicle 1 shown in FIG. As shown in FIG. 5, above the window portion 6, the single heat insulating material unit 21 is adhered to the inner surface on the indoor side of the side structure 3 with an adhesive (not shown), and is separated from the interior panel 7. is doing. The single heat insulating material unit 21 includes the soft heat insulating material 13 and the outer packaging material 14 that collectively wraps the soft heat insulating material 13, but does not have a hard heat insulating material like the composite heat insulating material unit 11. The soft heat insulating material 13 and the outer packaging material 14 of the single heat insulating material unit 21 are formed of the same material as the soft heat insulating material 13 and the outer packaging material 14 of the composite heat insulating material unit 11. Moreover, the thickness of the single heat insulating material unit 21 is substantially the same as the thickness of the composite heat insulating material unit 11.

According to the configuration described above, since the soft heat insulating material 13 covers both surfaces of the hard heat insulating material 12, the soft heat insulating material 13 is interposed between the hard heat insulating material 12 and the interior panel 7. If it does so, even if the situation which the composite heat insulating unit 11 repeats a contact to the interior panel 7 by the vibration at the time of driving | running | working of the rail vehicle 1 will generate | occur | produce the contact sound which a passenger is worried. And since the composite heat insulating unit 11 uses the hard heat insulating material 12, the heat insulating performance is high, and since the side facing the side structure 3 is the soft heat insulating material 13, the mounting work is also simple. Therefore, it is possible to suppress the generation of noise when the vehicle travels while achieving both high heat insulation performance and good mounting workability. Moreover, since the composite heat insulating unit 11 has a structure in which the soft heat insulating materials 13 and the hard heat insulating materials 12 are alternately stacked, noise from outside the vehicle can be well absorbed by the composite heat insulating material unit 11. .

Furthermore, since the hard heat insulating material 12 is not bonded to the soft heat insulating material 13 and is held by being sandwiched by the soft heat insulating material 13, the adhesive between the hard heat insulating material 12 and the soft heat insulating material 13 is It becomes unnecessary and the amount of adhesive used can be reduced. Moreover, since the hard heat insulating material 12 and the soft heat insulating material 13 are unitized in a non-adhered state, it is necessary to perform an adhesion process for pressing the hard heat insulating material against the soft heat insulating material in the vehicle body being manufactured as in the prior art. Production efficiency is improved.

In addition, since the hard heat insulating material 12 divided into a plurality is covered with the soft heat insulating material 13 as a whole, the composite heat insulating material unit 11 can be easily handled. Moreover, since the hard heat insulating material 12 and the soft heat insulating material 13 are also entirely covered with the outer packaging material 14, the handling of the composite heat insulating material unit 11 becomes easier. Moreover, since the soft heat insulating material 13 is continuously covered with the sheet-like outer packaging material 14 and the outer packaging material 14 is bonded to the side structure 3, the fibrous soft heat insulating material 13 is directly bonded to the side structure 3. Compared to the case, the bonding work of the composite heat insulating unit 11 to the side structure 3 is facilitated and the bonding stability is improved. Moreover, since the composite heat insulating unit 11 has a symmetrical structure in which the soft heat insulating material 13 is arranged on both sides of the hard heat insulating material 12, even if an opaque outer packaging material 14 is provided, it is not easy to mistake the front and back of the composite heat insulating material unit 11. There is no need to make it, and the mounting workability to the vehicle body becomes good.

Further, since the hard heat insulating material 12 is not flexible, the portion disposed along the curved surface of the side structure 3 forms an angle at the divided portion and the surface of the hard heat insulating material 12 on the interior panel 7 side is not smooth and distorted. Although it becomes a shape, since the soft heat insulating material 13 is provided on the interior panel 7 side of the hard heat insulating material 12, it is possible to smooth the surface on the interior panel 7 side of the composite heat insulating material unit 11. Therefore, a favorable air conditioning flow path 16 is formed even in a narrow width, and variations in the temperature distribution of the air passing through the air conditioning flow path 16 can be suppressed. Moreover, in the composite heat insulating material unit 11, since the soft heat insulating material 13 is continuously covered with the flexible outer packaging material 14, the surface forming the air conditioning channel 16 can be made smoother.

Further, the composite heat insulating material unit 11 is arranged such that the first hard heat insulating material 12A that is short in the vertical direction corresponds to the curved portion 4a, and the second hard heat insulating material 12B that is long in the vertical direction corresponds to the

flat portions

4b and 4c. Since the hard heat insulating material 12 is intensively divided at the portion corresponding to the curved portion 4a, the shape followability to the side structure 3 of the composite heat insulating material unit 11 can be reduced while reducing the man-hours for the division processing. Can be increased. Moreover, since the hard heat insulating material 12 is divided | segmented only to one direction (up-down direction), it can be made to follow the curved side structure 3 easily, and can reduce the clearance gap by division | segmentation of the hard heat insulating material 12 as much as possible. be able to.

Furthermore, since the composite heat insulating unit 11 and the single heat insulating unit 21 are individually arranged in a plurality of regions defined by the plurality of bone members 5, the vehicle between the side structure 3 and the interior panel 7 is arranged. Even if the gap in the width direction is narrow, it can be arranged efficiently, and the installation work becomes easy. Moreover, since the composite heat insulating unit 11 is disposed below the window portion 6 and the single heat insulating unit 21 is disposed above the window portion 6, while using a simple single heat insulating unit 21 as appropriate. The heat insulating performance of the portion that easily affects passenger comfort can be locally increased by the composite heat insulating material unit 11.

(Second Embodiment)
FIG. 6 is a partial cross-sectional perspective view showing the composite heat insulating material unit 111 used in the railway vehicle of the second embodiment. As shown in FIG. 6, the composite heat insulating material unit 111 includes a hard heat insulating material 112 that is vertically divided at equal intervals, and a structure 3 (see FIG. 3) side of the hard heat insulating material 112 that has a larger area than the hard heat insulating material 112. The first soft heat insulating material 113A that covers the surface of the hard heat insulating material 112 and the second soft heat insulating material 113B that covers the surface of the interior panel 7 (see FIG. 3) of the hard heat insulating material 112 that is larger than the hard heat insulating material 112. . The materials of the hard heat insulating material 112 and the soft

heat insulating materials

113A and 113B are the same as those in the first embodiment. Of the first soft heat insulating material 113A and the second soft heat insulating material 113B, the peripheral edge portions 113Aa and 113Ba that protrude outward from the hard heat insulating material 112 are joined to each other over the entire circumference. For example, the inner surfaces of the first soft heat insulating material 113A and the second soft heat insulating material 113B may be bonded with a double-sided tape or the like, or may be bonded with an adhesive or an adhesive tape. More preferably, if bonding is performed using the needle punch 115 as shown in FIG. 6, no bonding material is required. Moreover, you may join by sewing with inorganic fibers, such as glass fiber, and, thereby, joining is possible, without using an organic material. According to needle punching or sewing, it is possible to join the soft heat insulating material without using an adhesive that affects the combustion resistance.

According to the above configuration, the bonding material for maintaining the state in which the soft

heat insulating materials

113A and 113B hold the hard heat insulating material 112 from both sides becomes unnecessary, and the outer packaging material can also be made unnecessary. In addition, since only a few parts are used, the disposal process is facilitated. Since other configurations are the same as those of the first embodiment described above, description thereof is omitted.

In each of the above-described embodiments, the composite heat insulating

material units

11 and 111 are adhesively bonded to the side structure 3 by applying an adhesive, but both surfaces of the composite heat insulating

material units

11 and 111 are disposed on the side structure 3 side. Adhesive tape or the like may be applied and adhesively fixed to the side structure 3 accordingly. Further, the outer packaging material 14 may be partially covered without covering the entire soft heat insulating material 13. Further, the soft heat insulating material 13 may be fixed to the hard heat insulating material 12 using a fixing tool. Further, in the case where the horizontal bone member is bonded to the inner surface of the outer plate 4 and the vertical bone member is bonded from above, the composite heat insulating material unit 11 may be bonded to the surface of the horizontal bone member. Further, the present invention is not limited to the above-described embodiments, and the configuration can be changed, added, or deleted without departing from the spirit of the present invention. The above embodiments may be arbitrarily combined with each other. For example, some configurations or methods in one embodiment may be applied to other embodiments.

As described above, the composite heat insulating unit according to the present invention and the railway vehicle using the same can suppress noise generation during vehicle travel while achieving both high heat insulating performance and good mounting workability. It is beneficial to be widely applied to railway vehicles that have excellent effects such as being able to perform and that can demonstrate the significance of this effect.

DESCRIPTION OF SYMBOLS 1 Railcar 2 Car body 3 Side structure 6 Window part 7 Interior panel 11,111 Composite heat insulating material unit 12,112 Hard heat insulating material 12A 1st hard heat insulating material 12B 2nd hard heat insulating material 13 Soft heat insulating material 21 Single heat insulating material unit 113A First soft heat insulating material 113B Second soft heat insulating material 113Aa, 113Ba

Claims

A composite heat insulating material unit disposed in a space between a railway vehicle structure and an interior panel,
Hard insulation,
A composite heat insulating unit for a railway vehicle, comprising: a soft heat insulating material covering both surfaces of the hard heat insulating material.
The hard heat insulating material and the soft heat insulating material are in contact with each other in a non-adhesive state,
The composite heat insulating unit for a railway vehicle according to claim 1, wherein the hard heat insulating material is held by being sandwiched by the soft heat insulating material from both sides thereof.
3. The composite heat insulating material unit for a railway vehicle according to claim 1 or 2, wherein the soft heat insulating material wraps the entire hard heat insulating material.
The hard heat insulating material is divided into a plurality of pieces,
The composite insulating material unit for a railway vehicle according to any one of claims 1 to 3, wherein the soft heat insulating material collectively covers the plurality of hard heat insulating materials.
5. The composite heat insulating unit for a railway vehicle according to claim 4, wherein the hard heat insulating material is divided only in one direction and arranged so that a longitudinal direction thereof substantially coincides with a longitudinal direction of the vehicle.
The soft heat insulating material has a larger area than the hard heat insulating material and covers a first surface of the fibrous heat insulating material, and the other surface of the hard heat insulating material having a larger area than the hard heat insulating material. And a fibrous second soft heat insulating material covering
The peripheral part which protruded outward from the said hard heat insulating material of said 1st soft heat insulating material and said 2nd soft heat insulating material is mutually joined by the stitch | suture or needle punch by an inorganic fiber. A composite heat insulating material unit for railcars according to claim 1.
The composite heat insulating material unit according to any one of claims 1 to 6,
A structure constituting the vehicle body,
An interior panel disposed with a space on the indoor side of the structure,
The railway vehicle, wherein the composite heat insulating unit is disposed in the space.
The composite heat insulating material unit is adhered to the inner surface of the structure on the space side and separated from the interior panel,
The railway vehicle according to claim 7, wherein a gap between the composite heat insulating unit and the interior panel is used as an air conditioning flow path.
The structure has a curved portion curved in the vehicle width direction in a part from the upper side to the lower side,
The composite heat insulating material unit is arranged so as to cover the curved portion from the indoor side, and the hard heat insulating material is divided into three or more vertically.
The hard heat insulating material divided into three or more includes a first hard heat insulating material divided short in the vertical direction, and a second hard heat insulating material divided long in the vertical direction,
The railway vehicle according to claim 7 or 8, wherein the first hard heat insulating material is disposed corresponding to the curved portion.
A single heat insulating unit having the soft heat insulating material and not having the hard heat insulating material;
The structure has an opening;
The railway vehicle according to any one of claims 7 to 9, wherein the single heat insulating material unit is disposed above the opening, and the composite heat insulating unit is disposed below the opening.