Support structure of pipe arrangement

Abstract

To provide a support structure of pipe arrangement which makes it possible to increase a mounting space of a battery pack as much as possible.SOLUTION: A support structure of pipe arrangement is configured so that an exhaust pipe 3 as a pipe that extends in the front and rear direction of the vehicle is supported via a front support member 5 and a rear support member 6 by a battery pack 2 for generating traveling drive force installed under a floor panel 1 of the vehicle. According to the configuration, it is possible to increase the mounting space of the battery pack 2 as much as possible because it only needs to manage the relative position variation between the battery pack 2 and the exhaust pipe 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] For example, paragraphs 0056-0058 of Patent Document 1 state that "the fuel piping 45 is arranged on the dash panel 20 to the right of the exhaust pipe 32," that "the coolant pipe 46 extends in the fore-and-aft direction of the vehicle on the left side of the vehicle, similar to the high-voltage power line 40," and that "the coolant pipe 46 connecting the radiator 48 and the battery 44 is arranged inward in the vehicle width direction of the front side member 16, so that it can be protected by the front side member 16, which is a framework member, in the event of a side collision." [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6922763 (JP 2019-131003) Summary of the Invention [Problem to be solved by the invention]

[0004] The above Patent Document 1 does not specifically state what supports the "fuel pipe 45." In addition, paragraph 0044 of the above Patent Document 1 states that "the coolant pipe 46 is held by a clamp member 52," but does not specifically state what supports it.

[0005] In a vehicle in which a battery pack is installed under the vehicle floor, the fuel piping and coolant pipes are generally supported by the vehicle frame. However, considering safety, it is necessary to curve the rods for supporting the fuel piping and coolant pipes so that the tips of the rods do not point toward the battery pack, which creates a need to reduce the mounting space for the battery pack.

[0006] In view of the above circumstances, an object of the present invention is to provide a piping support structure that enables the mounting space for battery packs to be expanded as much as possible. [Means for solving the problem]

[0007] The present invention provides a structure in which piping extending in the fore-and-aft direction of the vehicle is supported on a battery pack for generating driving force for running, the battery pack being installed under the floor of the vehicle, and the piping is supported on the battery pack via a support member.

[0008] According to this configuration, it is only necessary to control the relative positional variation between the battery pack and the piping, so that it is possible to maximize the mounting space for the battery pack.

[0009] Incidentally, for example, in a configuration in which the battery pack and the piping are separately attached to the vehicle frame, it is necessary to manage the relative positional variation between the vehicle frame and the battery pack, and the relative positional variation between the vehicle frame and the piping, and therefore it is necessary to reduce the mounting space for the battery pack.

[0010] Compared to such an embodiment, the above-described configuration of the present invention makes it possible to make maximum use of the mounting space for the battery pack under the floor of the vehicle, which is advantageous in terms of increasing the capacity of the mounted battery pack.

[0011] In the above-mentioned piping support structure, the support member may include a first rod attached to the battery pack side, a second rod attached to the piping side, and a hanger connecting the first rod and the second rod, and the first rod may be configured so that its longitudinal direction is parallel or approximately parallel to the mounting surface to the battery pack.

[0012] With this configuration, in the event of a vehicle collision, the first rod is less likely to collide with the mounting surface of the battery pack. Even if the first rod does collide with the mounting surface, the tip of the first rod will not abut at a point, but rather the side of the first rod will abut as a line or surface, thereby reducing damage to the battery pack.

[0013] Furthermore, in the above piping support structure, the second rod can be configured to be positioned below the first rod with its longitudinal direction parallel or approximately parallel to the first rod.

[0014] With this configuration, in the unlikely event of a vehicle collision, the second rod is less likely to come into contact with the battery pack.

[0015] Furthermore, in the above-mentioned piping support structure, the support member includes a front support member for supporting a region of the piping closer to the front of the vehicle on the battery pack, and a rear support member for supporting a region of the piping closer to the rear of the vehicle on the battery pack, wherein the front support member includes a first front rod attached to the battery pack side, a second front rod attached to the piping side, and a front hanger connecting the first front rod and the second front rod, and the rear support member includes a first rear rod attached to the battery pack side, a second rear rod attached to the piping side, and a rear hanger connecting the first rear rod and the second rear rod, and at least one of the second front rod and the second rear rod can be configured so as not to overlap with the battery pack in the vertical direction when viewed from at least one of the vehicle fore-and-aft direction and the vehicle width direction.

[0016] With this configuration, the piping is supported at two points in the vehicle front-rear direction, improving the support rigidity and posture stability of the piping. Also, in the event of a vehicle collision, at least one of the second front rod and the second rear rod is less likely to come into contact with the battery pack.

[0017] Furthermore, in the above-mentioned piping support structure, the support member includes a front support member for supporting a region of the piping closer to the front of the vehicle on the battery pack, and a rear support member for supporting a region of the piping closer to the rear of the vehicle on the battery pack, wherein the front support member includes a first front rod attached to the battery pack side, a second front rod attached to the piping side, and a front hanger connecting the first front rod and the second front rod, and the rear support member includes a first rear rod attached to the battery pack side, a second rear rod attached to the piping side, and a rear hanger connecting the first rear rod and the second rear rod, and at least one of the first front rod and the first rear rod is attached to a corner of the battery pack.

[0018] With this configuration, the corners of the battery pack have relatively high strength, so that in the event of a vehicle collision, the corners of the battery pack are less likely to deform even if a collision load is input to at least one of the first front rod and the first rear rod. Effect of the Invention

[0019] According to the present invention, it is possible to provide a piping support structure that enables the mounting space for the battery pack to be expanded as much as possible. [Brief description of the drawings]

[0020] [Figure 1] 1 is a bottom view showing one embodiment of a support structure for piping according to the present invention. FIG. [Diagram 2] 2 is an enlarged perspective view of the area surrounded by the dashed dotted line in FIG. 1, viewed from the direction of arrow (2). [Diagram 3] 2 is an enlarged perspective view of the area surrounded by the dashed dotted line in FIG. 1, viewed from the direction of arrow (3). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

[0022] One embodiment of the present invention is shown in Figures 1 to 3. As shown in these figures, a battery pack 2 and an exhaust pipe 3 as piping are installed under a floor panel 1 as the floor of a vehicle such as an automobile.

[0023] The battery pack 2 is installed on the underside of a floor panel 1 of the vehicle in a central area in the vehicle front-rear direction and the vehicle width direction.

[0024] When viewed from below, the front half of the battery pack 2 is formed in a substantially trapezoidal shape, and the rear half is formed in a rectangular shape.

[0025] Battery pack 2 having this shape has six corners, each of which has an attachment piece that protrudes outward to attach to floor panel 1. Note that Fig. 1 only shows attachment piece 21 at the right middle corner and attachment piece 22 at the right rear corner.

[0026] The exhaust pipe 3 is installed on the underside of a floor panel 1 of the vehicle in a region between a floor side member 4 on the left side of the vehicle and the battery pack 2 so as to extend from front to rear.

[0027] This exhaust pipe 3 is provided with a catalyst (for example, a three-way catalyst with a filter) 31 on the upstream side in the exhaust gas flow direction, and a silencer 32 is provided downstream of the catalyst 31 in the exhaust gas flow direction.

[0028] A first intermediate pipe 33 located downstream of the catalyst 31 in the exhaust pipe 3 is supported on the right front side of the battery pack 2 via a front support member 5 .

[0029] In addition, a second intermediate pipe 34 downstream of the muffler 32 in the exhaust pipe 3 is supported at the right rear corner of the battery pack 2 via a rear support member 6, so that the exhaust pipe 3 is suspended below the floor panel 1.

[0030] The front support member 5 includes a first front rod 51, a second front rod 52, and a front hanger 53.

[0031] As shown in FIG. 2, the base end side of the first front rod 51 is attached to a mounting piece 21 at the right middle corner of the battery pack 2 by, for example, a bolt 7 or the like.

[0032] The longitudinal direction of this first front rod 51 is oriented so as to be parallel or approximately parallel to the right front slope 23 of the battery pack 2, and the tip of the first front rod 51 is directed toward the center of the vehicle width direction at the front of the vehicle.

[0033] The base end side of the second front rod 52 is attached to the first intermediate pipe 33 of the exhaust pipe 3 by, for example, welding.

[0034] The longitudinal direction of the second front rod 52 is parallel or approximately parallel to the longitudinal direction of the first front rod 51, and the tip of the second front rod 52 is directed toward the center in the vehicle width direction at the front of the vehicle. Furthermore, the second front rod 52 is disposed below the first front rod 51 without contacting it.

[0035] The front hanger 53 is what is called a hanger or the like, which connects the first front rod 51 and the second front rod 52, and is made of an elastic material such as rubber.

[0036] The front hanger 53 is formed, for example, in a columnar shape with an elliptical cross section, and holes 54, 54 are provided on both sides of its central axis, penetrating along the central axis. The first front rod 51 is inserted into one of the two holes 54, 54, and the second front rod 52 is inserted into the other, so that the relative positions of the first front rod 51 and the second front rod 52 are maintained. The insertion direction of the first front rod 51 and the insertion direction of the second front rod 52 are the same.

[0037] The rear support member 6 includes a first rear rod 61, a second rear rod 62, and a rear hanger 63.

[0038] As shown in FIG. 3, the base end side of the first rear rod 61 is attached to the mounting piece 22 at the right rear corner of the battery pack 2 by, for example, a bolt 8.

[0039] The longitudinal direction of this first rear rod 61 is oriented so as to be parallel or approximately parallel to the rear surface of the battery pack 2 (a surface along the vehicle width direction), and the tip of the first rear rod 61 is directed toward the outer right side of the vehicle.

[0040] The second rear rod 62 has a base end attached to the second intermediate pipe 34 of the exhaust pipe 3 by, for example, welding.

[0041] The longitudinal direction of the second rear rod 62 is oriented so as to be parallel or approximately parallel to the longitudinal direction of the first rear rod 61, and the tip of the second rear rod 62 is directed toward the inside of the vehicle. Furthermore, the second rear rod 62 is disposed below the first rear rod 61 without contacting it.

[0042] The rear hanger 63 is what is called a hanger or the like, which connects the first rear rod 61 and the second rear rod 62, and is formed of an elastic member such as rubber.

[0043] The rear hanger 63 is formed, for example, in a columnar shape with an elliptical cross section, and holes 64, 64 are provided on both sides of its central axis, penetrating along the central axis. The first rear rod 61 is inserted into one of the two holes 64, 64, and the second rear rod 62 is inserted into the other, so that the relative positions of the first rear rod 61 and the second rear rod 62 are maintained. The insertion direction of the first rear rod 61 and the insertion direction of the second rear rod 62 are opposite to each other.

[0044] The first front rod 51, the second front rod 52, the first rear rod 61 and the second rear rod 62 are arranged so as not to overlap the battery pack 2 in the vertical direction when viewed from the vehicle front-rear direction and when viewed from the vehicle width direction.

[0045] As described above, according to the embodiment of the present invention, it is only necessary to manage the relative positional variation between the battery pack 2 and the exhaust pipe 3, so it is possible to maximize the mounting space for the battery pack 2.

[0046] Incidentally, for example, although not shown, in a configuration in which the battery pack 2 and the exhaust pipe 3 are separately attached to the vehicle frame, it is necessary to manage the relative positional variation between the vehicle frame and the battery pack 2, and the relative positional variation between the vehicle frame and the exhaust pipe 3, and therefore it is necessary to reduce the mounting space for the battery pack 2.

[0047] Compared to this configuration, the above-described configuration of this embodiment makes it possible to make maximum use of the mounting space for the battery pack 2 on the underside of the vehicle floor panel 1, which is advantageous in terms of improving the capacity of the mounted battery pack 2.

[0048] In addition, in the above embodiment, the exhaust pipe 3 is supported by the battery pack 2 at two points in the fore-and-aft direction of the vehicle via the front support member 5 and the rear support member 6, thereby improving the support rigidity and posture stability of the exhaust pipe 3.

[0049] In addition, in the above embodiment, the first front rod 51 is oriented so that its longitudinal direction is parallel or approximately parallel to the right front slope 23 of the battery pack 2, and the second front rod 52 is oriented so that it is parallel or approximately parallel to the first front rod 51 and is positioned below the first front rod 51 without contact. Therefore, in the event of a vehicle collision, the second front rod 52 is less likely to collide with the right front slope 23 of the battery pack 2. Furthermore, even if the second front rod 52 does collide with the right front slope 23, the tip of the second front rod 52 will not abut at a point, but the side of the second front rod 52 will abut in a line or surface, thereby reducing damage to the battery pack 2.

[0050] In addition, in the above embodiment, the first rear rod 61 is oriented so that its longitudinal direction is parallel or approximately parallel to the rear surface of the battery pack 2, and the second rear rod 62 is oriented so that it is parallel or approximately parallel to the first rear rod 61 and is positioned below the first rear rod 61 without contact. Therefore, in the event of a vehicle collision, the second rear rod 62 is less likely to collide with the rear surface of the battery pack 2. In addition, even if the second rear rod 62 does collide with the rear surface of the battery pack 2, the tip of the second rear rod 62 will not come into contact at a point, but rather the side of the second rear rod 62 will come into contact via a line or surface, thereby reducing damage to the battery pack 2.

[0051] Furthermore, in the above embodiment, the second front rod 52 and the second rear rod 62 are positioned so as not to overlap with the battery pack 2 in the vertical direction when viewed from at least one of the vehicle fore-and-aft direction and the vehicle width direction. Therefore, in the event of a vehicle collision, the second front rod 52 and the second rear rod 62 are less likely to come into contact with the battery pack 2.

[0052] Furthermore, in the above embodiment, the base end of the first front rod 51 is attached to the mounting piece 21 at the right front middle corner of the battery pack 2, which has relatively high strength. Therefore, in the unlikely event of a vehicle collision, even if a collision load is input to the first front rod 51, the right rear corner of the battery pack 2 is less likely to deform.

[0053] Furthermore, in the above embodiment, the base end of the first rear rod 61 is attached to the mounting piece 22 at the right rear corner of the battery pack 2, which has relatively high strength. Therefore, in the unlikely event of a vehicle collision, even if a collision load is input to the first rear rod 61, the right rear corner of the battery pack 2 is less likely to deform.

[0054] The present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the claims and a range equivalent to the claims.

[0055] (1) In the above embodiment, the exhaust pipe 3 is taken as an example of the piping, but the present invention is not limited to this. For example, although not shown, the piping may be a brake piping or a battery pack wire harness.

[0056] (2) In the above embodiment, an example was given in which the exhaust pipe 3 is supported by using both the front support member 5 and the rear support member 6, but the present invention is not limited to this.

[0057] For example, although not shown, it is possible to support the exhaust pipe 3 by using only either the front support member 5 or the rear support member 6. It is also possible to support the exhaust pipe 3 by using not only the front support member 5 and the rear support member 6, but also one or more support members having a similar configuration to these. In the latter case, the support rigidity of the exhaust pipe 3 is further improved compared to the above embodiment. [Industrial Applicability]

[0058] The present invention can be suitably used in a support structure for piping. [Explanation of symbols]

[0059] 1 Floor Panel 2 Battery pack 21 Right center corner mounting piece 22 Right rear corner mounting piece 23 Right front slope 3. Exhaust pipe 31 Catalyst 32 Silencer 33 First intermediate pipe 34 Second intermediate pipe 4 Floor side member 5 Front support member 51 First front rod 52 No. 2 front rod 53 Front hanger 54 holes 6 Rear support member 61 1st rear rod 62 2nd rear rod 63 Rear hanger 64 holes 7,8 Volts

Claims

1. A structure in which a battery pack for generating driving force for traveling is installed under the floor of a vehicle and a pipe extending in the front-rear direction of the vehicle is supported by the battery pack, The piping support structure, characterized in that the piping is supported by the battery pack via a support member.

2. The pipe support structure according to claim 1, the support member includes a first rod attached to the battery pack side, a second rod attached to the piping side, and a hanger connecting the first rod and the second rod, The first rod is oriented so that its longitudinal direction is parallel or approximately parallel to a mounting surface of the battery pack.

3. In the pipe support structure according to claim 2, A piping support structure characterized in that the second rod is positioned below the first rod and is oriented so that its longitudinal direction is parallel or approximately parallel to the first rod.

4. The pipe support structure according to claim 1, the support member includes a front support member for supporting a region of the piping closer to a front of the vehicle on the battery pack, and a rear support member for supporting a region of the piping closer to a rear of the vehicle on the battery pack, the front support member includes a first front rod attached to the battery pack side, a second front rod attached to the piping side, and a front hanger connecting the first front rod and the second front rod, the rear support member includes a first rear rod attached to a side of the battery pack, a second rear rod attached to a side of the piping, and a rear hanger connecting the first rear rod and the second rear rod, A piping support structure characterized in that at least one of the second front rod and the second rear rod is arranged so as not to overlap with the battery pack in the vertical direction when viewed from at least one of the vehicle fore-and-aft direction and the vehicle width direction.

5. The pipe support structure according to claim 1, the support member includes a front support member for supporting a region of the piping closer to a front of the vehicle on the battery pack, and a rear support member for supporting a region of the piping closer to a rear of the vehicle on the battery pack, the front support member includes a first front rod attached to the battery pack side, a second front rod attached to the piping side, and a front hanger connecting the first front rod and the second front rod, the rear support member includes a first rear rod attached to a side of the battery pack, a second rear rod attached to a side of the piping, and a rear hanger connecting the first rear rod and the second rear rod, A piping support structure, wherein at least one of the first front rod and the first rear rod is attached to a corner of the battery pack.

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