Vehicle pipeline structure

Abstract

To obtain a vehicle pipeline structure which can inhibit reduction of rigidity of a dash panel by formation of a through hole into which a pipe is inserted.SOLUTION: An integrated pipeline 12 to which a vehicle pipeline structure is applied includes: a pipeline body 20 which is formed in a cylindrical shape and penetrates through a dash panel 10 separating a passenger compartment interior from a passenger compartment exterior; and partition wall parts 24 which partition an internal space of the pipeline body 20 into a plurality of passages 22 in the pipeline body 20.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a piping structure for a vehicle. [Background technology]

[0002] The following Patent Document 1 discloses a configuration in which a plurality of through holes are formed in a dash panel that separates the interior and exterior of the vehicle, and a plurality of pipes are inserted into the plurality of through holes formed in the dash panel, thereby routing a plurality of pipes between the interior and exterior of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-331532 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the configuration described in Patent Document 1 requires the dash panel to be formed with a plurality of through holes into which the respective pipes are inserted. Therefore, the configuration described in Patent Document 1 has room for improvement in terms of suppressing a decrease in the rigidity of the dash panel due to the formation of the through holes into which the pipes are inserted.

[0005] In consideration of the above, an object of the present invention is to provide a piping structure for a vehicle that can suppress a decrease in the rigidity of a dash panel due to the formation of a through hole through which piping is inserted. [Means for solving the problem]

[0006] The piping structure of a first embodiment of a vehicle includes a piping body that is formed in a cylindrical shape and penetrates a dash panel that separates the interior and exterior of the vehicle, and a partition portion inside the piping body that divides the internal space of the piping body into multiple flow paths.

[0007] In the first aspect of the vehicle piping structure, the internal space of the piping body is divided into multiple flow paths by partitions. This configuration eliminates the need to provide multiple pipes to form the multiple flow paths, and to form multiple through-holes in the dash panel through which the multiple pipes are inserted. This makes it possible to suppress a decrease in the rigidity of the dash panel due to the formation of through-holes through which the pipes are inserted. [Effects of the Invention]

[0008] The piping structure for a vehicle according to the present invention has the excellent effect of being able to suppress a decrease in the rigidity of the dash panel due to the formation of the through-hole into which the piping is inserted. [Brief explanation of the drawings]

[0009] [Figure 1] 4 is a cross-sectional view showing a cross section of a portion of the dash panel into which the integrated piping is inserted, taken along the vertical and longitudinal directions. FIG. [Figure 2] FIG. 2 is a cross-sectional view showing a cross section taken along line 2-2 shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a piping structure for a vehicle according to an embodiment of the present invention will be described with reference to the drawings. Note that the arrow FR shown as appropriate in each drawing indicates the front side of the vehicle, the arrow UP indicates the upper side of the vehicle, the arrow LH indicates the left side in the vehicle width direction (left-right direction), and the arrow RH indicates the right side in the vehicle width direction (left-right direction). Furthermore, in the following description, when the front-rear, up-down, and left-right directions are indicated, they refer to the front-rear in the front-rear direction of the vehicle, the up-down in the vehicle up-down direction, and the left-right in the vehicle left-right direction unless otherwise specified.

[0011] As shown in FIG. 1, the piping structure of a vehicle according to this embodiment is applied to a dash panel 10 and an integrated piping 12 inserted into the dash panel 10.

[0012] 1 and 2, dash panel 10 is made of, for example, iron and extends in the left-right and up-down directions with the thickness direction being the longitudinal direction of the vehicle. This dash panel 10 separates in the longitudinal direction between a vehicle interior 14 and an exterior 16 of the vehicle that is forward of the vehicle interior 14. Dash panel 10 also has a through-hole 18 that penetrates dash panel 10 in the longitudinal direction. The edge of this through-hole 18 has a circular shape when viewed from the longitudinal direction.

[0013] The integrated pipe 12 includes a pipe main body 20 formed in a cylindrical shape with its axial direction extending in the front-to-rear direction. Furthermore, as shown in Fig. 2, the integrated pipe 12 includes a partition wall portion 24 inside the pipe main body 20 that divides the internal space of the pipe main body 20 into a plurality of flow paths 22. The partition wall portion 24 is made up of a first partition wall plate 24A, a second partition wall plate 24B, a third partition wall plate 24C, a fourth partition wall plate 24D, a fifth partition wall plate 24E, a sixth partition wall plate 24F, a seventh partition wall plate 24G, and an eighth partition wall plate 24H, which constitute the respective parts of the partition wall portion 24.

[0014] The first partition plate 24A and the second partition plate 24B are each formed as a plate extending in the front-rear direction with the left-right direction as the thickness direction. The first partition plate 24A and the second partition plate 24B are arranged with a gap in the left-right direction, and their upper and lower ends are connected to the piping body 20. The first partition plate 24A has a multi-layer structure in the thickness direction. The central portion in the thickness direction of the first partition plate 24A serves as a heat insulating layer 26 formed using a material with low thermal conductivity compared to the surface layer portion in the thickness direction. The second partition plate 24B has the same configuration as the first partition plate 24A and is also configured with the heat insulating layer 26.

[0015] The third partition plate 24C and the fourth partition plate 24D are each formed like a plate extending in the front-rear direction with the thickness direction being the up-down direction. The third partition plate 24C and the fourth partition plate 24D are arranged at an interval in the up-down direction between the piping main body 20 and the first partition plate 24A. The left end of the third partition plate 24C and the left end of the fourth partition plate 24D are each connected to the piping main body 20. The right end of the third partition plate 24C and the right end of the fourth partition plate 24D are each connected to the first partition plate 24A.

[0016] The fifth partition plate 24E and the sixth partition plate 24F are each formed as a plate extending in the front-rear direction with the thickness direction being the up-down direction. The fifth partition plate 24E and the sixth partition plate 24F are disposed between the first partition plate 24A and the second partition plate 24B with a gap therebetween in the up-down direction. The left end of the fifth partition plate 24E and the left end of the sixth partition plate 24F are each connected to the first partition plate 24A. The right end of the fifth partition plate 24E and the right end of the sixth partition plate 24F are each connected to the second partition plate 24B.

[0017] The seventh partition plate 24G and the eighth partition plate 24H are each formed as a plate extending in the front-rear direction with the vertical direction as the thickness direction. The seventh partition plate 24G and the eighth partition plate 24H are arranged with a gap in the vertical direction between the second partition plate 24B and the piping main body 20. The left end of the seventh partition plate 24G and the left end of the eighth partition plate 24H are each connected to the second partition plate 24B. The right end of the seventh partition plate 24G and the right end of the eighth partition plate 24H are each connected to the piping main body 20.

[0018] The space surrounded by the first partition plate 24A, the third partition plate 24C, and the piping main body 20 forms a first flow path 22A. The space surrounded by the first partition plate 24A, the third partition plate 24C, the fourth partition plate 24D, and the piping main body 20 forms a second flow path 22B. The space surrounded by the first partition plate 24A, the fourth partition plate 24D, and the piping main body 20 forms a third flow path 22C. The space surrounded by the first partition plate 24A, the second partition plate 24B, the fifth partition plate 24E, and the piping main body 20 forms a fourth flow path 22D. The space surrounded by the first partition plate 24A, the second partition plate 24B, the fifth partition plate 24E, and the sixth partition plate 24F forms a fifth flow path 22E. Furthermore, the space surrounded by the first partition plate 24A, the second partition plate 24B, the sixth partition plate 24F, and the piping main body 20 forms a sixth flow path 22F. Furthermore, the space surrounded by the second partition plate 24B, the seventh partition plate 24G, and the piping main body 20 forms a seventh flow path 22G. Furthermore, the space surrounded by the second partition plate 24B, the seventh partition plate 24G, the eighth partition plate 24H, and the piping main body 20 forms an eighth flow path 22H. Furthermore, the space surrounded by the second partition plate 24B, the eighth partition plate 24H, and the piping main body 20 forms a ninth flow path 22I.

[0019] The integrated piping 12 described above is routed between the interior 14 and exterior 16 of the vehicle cabin while being inserted into a through-hole 18 formed in the dash panel 10 .

[0020] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0021] 1 and 2, in the embodiment described above, the internal space of the piping body 20 is divided by the partition wall 24 into nine passages, first through ninth, 22A through ninth, 22I. This configuration allows air, refrigerant, coolant, and the like to flow through the nine passages, first through ninth, 22A through 22I. This configuration also eliminates the need to provide multiple pipes for forming the nine passages, first through ninth, 22A through 22I, and to form multiple through-holes in the dash panel 10 through which the pipes are inserted. This reduces the reduction in the rigidity of the dash panel 10 that would be caused by the formation of through-holes through which the pipes are inserted.

[0022] In the present embodiment, the first partition plate 24A has a heat insulating layer 26. This allows the heat insulating layer 26 to suppress the flow of heat between the first flow path 22A and the fourth flow path 22D, between the second flow path 22B and the fifth flow path 22E, and between the third flow path 22C and the sixth flow path 22F.

[0023] In the present embodiment, the second partition plate 24B has a heat insulating layer 26. This allows the heat insulating layer 26 to suppress the flow of heat between the fourth flow path 22D and the seventh flow path 22G, between the fifth flow path 22E and the eighth flow path 22H, and between the sixth flow path 22F and the ninth flow path 22I.

[0024] In this embodiment, an example in which the insulating layer 26 is provided on each of the first partition plate 24A and the second partition plate 24B has been described, but the present invention is not limited to this. For example, the insulating layer 26 may be provided on the entire partition portion 24 (the first partition plate 24A to the eighth partition plate 24H). Furthermore, the insulating layer 26 may be provided on the piping main body 20. Also, a configuration in which the insulating layer 26 is not provided may be adopted.

[0025] In addition, in this embodiment, an example has been described in which the internal space of the piping body 20 is divided into nine flow paths 22 (first flow path 22A to ninth flow path 22I) by the partition wall portion 24, but the present invention is not limited to this. The number of flow paths 22 into which the internal space of the piping body 20 is divided may be appropriately set in consideration of the number of flow paths 22 required for the integrated piping 12.

[0026] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0027] 10 Dash Panel 14 Inside the vehicle 16 Outside the vehicle 20 Piping body 22 Flow path 24 Bulkhead

Claims

[Claim 1] a tubular pipe body that passes through a dash panel that separates the interior and exterior of the vehicle; A partition wall portion that divides the internal space of the piping body into a plurality of flow paths inside the piping body; A piping structure for a vehicle equipped with the same.

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