JP4446250B2 - Thermal insulation sound insulation structure, structure having the same, and construction method thereof - Google Patents

Description

  The present invention relates to a heat insulating sound insulating structure that is thin and excellent in heat insulating properties and sound insulating properties, a structure having the heat insulating sound insulating structure, and a construction method thereof.

  For example, in transportation equipment represented by railway vehicles and road vehicles, the interior space is always exposed to heat intrusion and noise from outside the vehicle. In order to ensure the heat insulation and quietness of the interior space for such a situation, a heat insulation sound insulation structure including a heat insulating material having a vibration damping function is disclosed on the inner side of a highly rigid hollow material ( For example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-100915

  By the way, as described in Patent Document 1, conventionally, for example, a foamable resin, glass wool, or the like has been used as a heat insulating sound insulating material for transportation equipment or the like. When such a heat insulating material is used, in order to obtain the required characteristics, it is necessary to secure a certain thickness of the heat insulating sound insulating material, and accordingly, the size of the interior space is limited.

  On the other hand, glass wool or the like is usually attached to the outer shell structure manually, and thus there is a problem that the number of manufacturing steps increases.

  An object of the present invention is to reduce the thickness of the heat insulating sound insulation structure.

  The heat insulation sound insulation structure according to the present invention is characterized by laminating a layer of heat insulation sound insulation material and a flat vacuum heat insulation material. That is, by using a vacuum heat insulating material instead of the conventional heat insulating material, the thickness of the structure can be reduced and the heat insulating performance in the thickness direction can be increased. For this reason, the indoor space can be increased by reducing the thickness of the structure. Further, as the heat insulation performance is improved, for example, the indoor air conditioner can be miniaturized, so that the indoor space can be further widened.

  In this case, the vacuum heat insulating material is preferably sandwiched between layers of heat insulating sound insulating material or embedded in the layer. According to this, since the surface of the vacuum heat insulating material can be wrapped with a heat insulating sound insulating material such as a nonwoven fabric, the heat insulating performance can be maintained without damaging the thin sealing material that seals the heat insulating material. Further, a plurality of vacuum heat insulating materials may be arranged in a planar shape, and a plurality of layers may be provided in the layer thickness direction according to the target heat insulating performance.

Specifically, the heat insulation sound insulation structure according to the present invention is formed by alternately laminating a plurality of layers of heat insulation sound insulation materials having flexibility and layers of vacuum heat insulation materials, and the heat insulation sound insulation structures are bent into a roll shape. The vacuum heat insulating material is a sheet-shaped core material having heat insulating properties wrapped with a flexible sheet-shaped sealing material and decompressed, and the peripheral edge of the sealing material is sealed by thermal welding. The peripheral edge of the vacuum heat insulating material is connected to the peripheral edge of the other vacuum heat insulating material and arranged in a strip shape, and the core material of the arranged vacuum heat insulating material is the other layer. The core material and the projection area in the layer thickness direction are positioned so as not to overlap.

Here, since the peripheral portion connecting the core members has lower heat insulating performance than the core material region, in the layer thickness direction, by positioning the core material of another layer in the projected region of the peripheral portion, the heat insulating performance Can be secured.

Furthermore, in order to apply the heat insulation sound insulation structure of such a structure to a transport apparatus, a building structure, etc., said heat insulation sound insulation structure is provided in the side surface of the structural member which comprises a part of outer shell. Specifically, in the construction method of the heat insulation sound insulation structure in which the heat insulation sound insulation structure is attached to the other structure, the above-described structure member constituting a part of the outer shell of the other structure is arranged along the longitudinal direction. The heat insulation sound insulation structure is attached to the structural member while unrolling the roll of the heat insulation sound insulation structure bent into a roll shape.

According to this, since the peripheral part of a sealing material has a softness | flexibility compared with a core material, the vacuum heat insulating material deform | transforms the peripheral part and winds up in roll shape in the arrangement direction of a core material. be able to. If the longitudinal direction of the structural member and the direction in which the cores are arranged coincide with each other, when the vacuum heat insulating material is applied to the structural member and applied, the roll can be applied while unwinding the roll in the longitudinal direction. And construction is easy. Similarly, you may make it construct using the roll which wound up the heat insulation sound insulation material simultaneously with the vacuum heat insulation material.

  Further, an interior panel is mounted on the interior side surface of the heat insulating sound insulation structure, and the interior panel is supported by a ridge protruding from the interior side surface of the outer shell. Thereby, an interior panel becomes the structure integrated in close contact with the heat insulation sound insulation structure, for example, can provide sound insulation to an interior panel. Furthermore, the interior panel can be formed in a roll shape together with the vacuum heat insulating material and the heat insulating sound insulating material, and can be applied simultaneously while unraveling this.

  According to the present invention, the thickness of the heat insulating sound insulation structure can be reduced.

(First embodiment)
Hereinafter, a first embodiment to which the present invention is applied will be described with reference to the drawings. FIG. 1 is a perspective view showing an appearance of a railway vehicle structure to which the present invention is applied, and FIG. 2 is a cross-sectional view showing an example of a railway vehicle structure.

  As shown in FIG. 1, the railway vehicle structure 1 forms a roof structure 2 that forms a roof, a wife structure 3 that forms surfaces that close both ends with respect to the longitudinal direction of the vehicle body, and left and right surfaces along the longitudinal direction of the vehicle body. It is comprised from the side frame 4 and the frame 5 which forms a floor surface. Side beams 6 are provided at both ends of the underframe 5 at the lowest part of the side structure 4. Note that the wife structure 3 is formed with openings of windows and doorways.

  The railway vehicle structure 1 of the present embodiment (hereinafter, appropriately abbreviated as “structure 1”) is formed by joining a plurality of hollow extruded shapes 7 in whole or in part. As shown in FIG. 2, a heat insulation sound insulation structure 20 is provided on the inner side of the hollow extruded shape member 7 serving as the outer shell.

  The hollow extruded shape member 7 has a structure in which two parallel face plates 10 a and 10 b are connected by a rib 11, and the face plate 10 and the rib 11 are connected to each other by a knot portion 12. The hollow extruded shape member 7 is made of a light alloy (for example, an aluminum alloy), and is disposed such that the extrusion direction thereof, that is, the longitudinal direction of the hollow extruded shape member coincides with the longitudinal direction of the vehicle body. Then, a hollow extruded shape member 7 is provided in the circumferential direction of the vehicle body, and the rail vehicle main body 1 is formed by welding and joining the adjacent hollow extruded shape members 7. A vibration damping material 13 is affixed to the rib 11 of the hollow extruded shape member 7.

  The heat insulating sound insulation structure 20 has a laminated structure having a single layer of vacuum heat insulating material 22 between two layers of heat insulating sound insulating material 21. The vacuum heat insulating material 22 is configured by sealing a panel-shaped core material having heat insulating properties with, for example, an aluminum foil under reduced pressure. As the heat insulating sound insulating material 21, a non-woven fabric is used, for example, glass wool or the like is suitable.

  Thus, in the heat insulation sound insulation structure 20, by using the vacuum heat insulation material 22, the thickness of the heat insulation sound insulation structure 20 can be reduced, and superior heat insulation performance can be exhibited as compared with the conventional heat insulation material. And the space in a vehicle can be widened because the thickness of a heat insulating material becomes thin. Furthermore, by improving the heat insulation performance, for example, the indoor air conditioner can be reduced in size, and the indoor space can be further widened.

  On the other hand, the sound entering from the outside of the vehicle through the hollow extruded shape member 7 is attenuated by the damping material 13 when the rib 11 is transmitted, and the solid sound transmitted to the heat insulating sound insulating structure 20 is laminated by the heat insulating sound insulating material 21 to be laminated. It is absorbed sequentially. For this reason, the sound which invades from the outside to the inside of the vehicle can be greatly reduced.

  In this embodiment, since the vacuum heat insulating material 22 is sandwiched between the heat insulating sound insulating materials 21 from both sides, the performance of the vacuum heat insulating material 22 can be maintained without damaging the sealing material for sealing the core material. Here, the vacuum heat insulating material 22 is good also as a structure embed | buried under the layer of the heat insulation sound insulation material 21, for example. Further, the vacuum heat insulating material 22 may be fixed with a foamed resin or the like instead of the nonwoven fabric.

  Moreover, although the vacuum heat insulating material 22 becomes a structure which has the one-layer vacuum heat insulating material 22 between the two-layer heat insulation sound-insulating material 21, for example, according to the target heat insulation performance etc., multiple layers of vacuum heat insulating material The material 22 may be laminated. In this case, the heat insulating sound insulating material 21 is formed between adjacent layers of the vacuum heat insulating material 22. According to this, the fall of the heat insulation characteristic of the vacuum heat insulating material 22 by the damage | wound on a sealing material resulting from the contact of sealing materials etc. can be suppressed. Furthermore, there is an effect of suppressing heat conduction through the sealing material.

  Moreover, although the example which sticks the damping material 13 to the one rib 11 is shown in this embodiment, it is preferable to adjust the sticking amount according to the target damping performance. Although the vibration damping material 13 is attached to the rib 11, it may be filled in a space surrounded by the two ribs 11 and the face plate 10.

  Next, the configuration of the vacuum heat insulating material will be specifically described. 3 and 4 are cross-sectional perspective views showing an example of the configuration of the vacuum heat insulating material 22. The vacuum heat insulating material 22 is formed by wrapping a heat-insulating core material 23 with a sheet-like sealing material 24 and depressurizing, and sealing the sealing portion 25 which becomes the peripheral portion of the sealing material 24 by heat welding. . As shown in FIG. 3, the core material 23 sealed by the sealing material 24 is joined to the adjacent core material 23 at the seal portions 25 at both ends, and is connected as shown in FIG. The seal portion 25 is more flexible than the core member 23, and is bonded so that the flexibility of the joint portion 26 where the seal portions 25 are joined to each other is not hindered. The core material 23 is formed in a wedge shape by cutting the upper and lower surfaces of both side edges in the longitudinal direction of the flat plate, and the vacuum heat insulating material 22 has a rectangular shape as a whole with a plurality of rectangular core materials 23 via joints 26. It is connected to. In addition, the core material 24 is not restricted to this shape, You may form a cross section in a rectangle.

  The heat insulation sound insulation structure 20 constituted by the vacuum heat insulation material 22 and the heat insulation sound insulation material 21 has flexibility in a direction orthogonal to the longitudinal direction of the core member 24. That is, the vacuum heat insulating material 22 is deformed with the flexible joint 26 as a base point, and the heat insulating sound insulating material 21 is flexible, such as glass wool, so that the heat insulating sound insulating structure 20 is deformed as a whole.

  With this configuration, the heat insulating sound insulation structure 20 can be wound in a roll shape, and when the heat insulation sound insulation structure 20 wound in a roll shape is attached to the hollow extruded shape member 7, the heat insulation sound insulation structure body 20 can be applied while unwinding the roll. it can. That is, when the heat insulation sound insulation structure 20 is pasted and applied to the railway vehicle structure 1 that is long in one direction, the man-hours and the number of parts can be reduced while maintaining the characteristics.

  In addition, in the junction part 26 which joins seal parts 25, as long as a softness | flexibility higher than the core material 23 can be ensured, you may join by methods other than adhesion | attachment.

  Moreover, since the heat insulation performance of the seal part 25 and the junction part 26 is inferior to the heat insulation performance of the core material 23, it is preferable to set the area of the seal part 25 and the junction part 26 as small as possible. Furthermore, it is preferable to arrange a plurality of layers of the vacuum heat insulating material 22 and arrange the core material 23 in the projection region in the layer thickness direction of the seal portion 25 and the joint portion 26 of other layers. According to this, heat insulation performance can be ensured over the extending direction of the layer of the vacuum heat insulating material 22.

  FIG. 5 is a cross-sectional view showing an example of the structure 1 according to the present invention. As shown in the figure, the structure 1 has a heat insulating sound insulation structure 20 formed inside the hollow extruded shape member 7. The heat insulation sound insulation structure 20 has a structure in which a plurality of heat insulation sound insulation materials 21 and a vacuum heat insulation material 22 are laminated. The two vacuum heat insulating materials 22a and 22b are arranged in a staggered manner to prevent heat from the hollow extruded shape member 7 from being transmitted into the vehicle, and the vacuum heat insulating material 22a is interposed between the heat insulating sound insulating materials 21b and 21c. The vacuum heat insulating material 22b is formed between the heat insulating sound insulating materials 21a and 21b. The hollow heat insulating material 22 and the heat insulating sound insulating material 21 do not necessarily have to be bonded.

  With this configuration, the vacuum heat insulating materials 22a and 22b can provide heat insulating performance in the extending direction. Moreover, since it can be bent in the direction orthogonal to the longitudinal direction of the core material 23 in the vicinity of the boundary between the core material 23 and the seal portion 25, the heat insulating sound insulation structure 20 having a plurality of layers of the vacuum heat insulating material 22 is also rolled. It can be wound and applied while unwinding its roll. Furthermore, since the vacuum heat insulating materials 22a and 22b are sandwiched between the heat insulating sound insulating materials 21a, 21b and 21c, the core materials do not contact each other during bending.

  Here, the heat insulation sound insulation structure 20 having the multiple layers of the vacuum heat insulating material 22 has a core material 23, a seal portion 25, and a joint portion in a direction orthogonal to the longitudinal direction of the core material 23 in order to ensure roll formability. It is preferable to set the length ratio to 26 appropriately.

(Second Embodiment)
Next, a description will be given of a second embodiment of a structure to which the heat insulating sound insulating structure 20 of the present invention. FIG. 6 is a cross-sectional view showing an example of the structure 1 according to the present invention. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the structure 1 of the present embodiment, as shown in the drawing, a heat insulating sound insulation structure 20 is formed on the inner side of the hollow extruded shape member 7, and both end surfaces in the width direction of the heat insulating sound insulation structure 20 are hollow extruded shape members. 7 is adjacent to the side surfaces of the protrusions 30a and 30b protruding from the face plate 10a toward the vehicle interior side. The protrusions 30 a and 30 b are formed in a T-shaped cross section, and are arranged in parallel along the longitudinal direction of the hollow extruded shape member 7. An interior panel 40 is disposed on the outermost surface of the heat insulating sound insulation structure 20 on the inner side of the vehicle, and the interior panel 40 is firmly connected to the upper side of the protrusion 30. Here, the connecting portion between the protrusion 30 and the interior panel 40 has a structure in which heat is less likely to be transmitted than the protrusion 30 and the interior panel 40. The inner surface of the interior panel 40 is provided with a makeup that improves passenger comfort.

  According to such a configuration, the interior panel 40 is configured to be in close contact with and integrated with the heat insulating sound insulation structure 20, and thus, for example, sound insulation can be imparted to the interior panel 40. Further, since the heat insulating sound insulation structure 20 wound in a roll shape can be applied to the surface of the hollow extruded shape member 7 sandwiched between the protrusions 30a and 30b while unwinding, the number of man-hours and parts can be reduced while maintaining the characteristics. The number of points can be reduced. Moreover, since the surface inside the vehicle of the interior panel 40 can constitute a smooth surface, it can constitute a beautiful surface.

  FIG. 7 is a cross-sectional view showing an example of another structure 1 in which the shape of the protrusions is different from that in FIG. As shown in the figure, the protrusion protruding from the face plate 10a of the hollow extruded shape member 7 toward the vehicle interior forms a pair of fitting article fastening rails 31 with the L-shaped protrusions facing each other. They are arranged in parallel along the longitudinal direction of the material 7. Both end surfaces in the width direction of the heat insulating sound insulation structure 20 are adjacent to the side surfaces of the fitting fastening rails 31a and 31b, respectively. The fitting article fastening rail 31 facilitates the attachment of the fitting article by placing a bolt or the like between a pair of L-shaped projections.

  An interior panel 40 is disposed on the outermost surface of the heat insulating sound insulation structure 20 on the inner side of the vehicle. The interior panel 40 is firmly connected to the upper side of the fitting fastening rail 31. Here, the connection part between the fitting article fastening rail 31 and the interior panel 40 has a structure in which heat is not easily transmitted as compared with the fitting article fastening rail 31 and the interior panel 40.

  FIG. 8 is a diagram for explaining a method of attaching the heat insulating sound insulation structure 20 in the structure 1 of FIG. First, the heat insulating sound insulation structure 20 is wound up in a roll shape while being joined to the interior panel 40. And as shown in the figure, the heat insulation sound insulation structure 20 is stuck and applied to the surface of the hollow extruded shape member 7 sandwiched between the fitting fastening rails 31a and 31b while unrolling the roll. Here, the interior panel 40 is joined to the top sides of the fitting fastening rails 31a and 31b while the heat insulating sound insulation structure 20 is attached. According to this, at the time of construction of the structure 1, the fitting fastening rail 31 can be used effectively, and a structure in which the fitting can be easily attached in the vehicle can be provided.

  As described above, according to the above embodiment, the thickness of the heat insulating sound insulation structure 20 is reduced by applying the vacuum heat insulating material 22 in the railway vehicle structure 1 using the hollow extruded shape member 7. Can do. Moreover, since the heat insulation sound insulation structure 20 can be roll-shaped and affixed by shape | molding the vacuum heat insulating material 22 in a predetermined | prescribed shape, the man-hour at the time of construction of the structure 1 can be reduced.

  Moreover, in the said embodiment, although the railway vehicle structure 1 was demonstrated as an example, it is not limited to this, For example, in transport equipment, a building structure, etc., such as a ship whose longitudinal direction has a predetermined length The same heat insulation characteristic and construction efficiency can be realized.

  Furthermore, in the said embodiment, although the example which affixes the heat insulation sound insulation structure 20 to the hollow extrusion shape member 7 was demonstrated, it is not limited to this, The heat insulation sound insulation structure 20 is affixed independently or to another outer shell structure You may make it use.

It is a perspective view which shows the external appearance of the railway vehicle structure to which this invention is applied. It is sectional drawing which shows an example of the rail vehicle structure which concerns on this invention. It is a section perspective view showing an example of composition of a vacuum heat insulating material concerning the present invention. It is a section perspective view showing an example of composition of a vacuum heat insulating material concerning the present invention. It is sectional drawing which shows an example of the rail vehicle structure which concerns on this invention. It is sectional drawing which shows an example of the rail vehicle structure which concerns on this invention. It is sectional drawing which shows an example of the rail vehicle structure which concerns on this invention. It is a figure explaining the sticking construction method of the heat insulation sound insulation structure which concerns on this invention.

Explanation of symbols

1 Railway vehicle structure (structure)
7 Hollow extruded profile 10 Face plate 11 Rib 13 Damping plate 20 Heat insulation sound insulation structure 21 Heat insulation sound insulation material 22 Vacuum heat insulation material 23 Core material 24 Sealing material 25 Sealing part 26 Joint part 30 Projection part 31 Fitting part fastening rail 40 Interior panel

Claims (3)

A heat insulation sound insulation structure comprising a plurality of layers of heat insulation sound insulation materials having flexibility and layers of vacuum heat insulation materials, which are alternately laminated and bent into a roll shape,
The vacuum heat insulating material is formed by wrapping a heat-insulating plate-shaped core material with a flexible sheet-shaped sealing material and reducing the pressure, and sealing the peripheral edge of the sealing material by heat welding. And the peripheral edge of the vacuum heat insulating material is connected to the peripheral edge of the other vacuum heat insulating material and arranged in a strip shape,
The core material of the vacuum heat insulating material arranged in a row is a heat insulating sound insulation structure in which the core material of another layer and the projection region in the layer thickness direction are positioned so as not to overlap . In the construction method of the heat insulation sound insulation structure in which the heat insulation sound insulation structure is attached to another structure,
The heat insulation sound insulation structure while unrolling the roll of the heat insulation sound insulation structure folded in a roll shape according to claim 1 along the longitudinal direction of a structural member constituting a part of the outer shell of the other structure. The construction method of the heat insulation sound insulation structure characterized by sticking to the said structural member . In the construction method of the heat insulation sound insulation structure in which the heat insulation sound insulation structure is attached to another structure,
The other structural body is composed of a plurality of hollow extruded shapes obtained by connecting two parallel face plates with ribs, and is arranged so that the extrusion direction of the hollow extruded shapes coincides with the longitudinal direction of the structure. And a railway vehicle structure formed by joining adjacent hollow extruded profiles,
On the face plate of the hollow extruded profile inside the railway vehicle structure, two parallel ridges protruding along the longitudinal direction are arranged,
Attaching the heat insulating sound insulation structure to the face plate while unrolling the roll of the heat insulating sound insulation structure folded in a roll shape according to claim 1 along the face plate sandwiched between the two protrusions. The construction method of the heat insulation sound insulation structure characterized by this .

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