Drainage structure for vehicles

Abstract

To provide a drainage structure for a vehicle that can prevent a flow path from being blocked even if an elastic member attached to the lower surface of an on-vehicle part hangs down. [Solution] A drainage structure 100 for a vehicle comprises elastic members 104a, 104b attached to the underside of an on-board component mounted on the vehicle, a flow path 110 arranged at intervals below the on-board component to direct liquid dripping from the on-board component in a predetermined direction, and protrusions 114a to 114d protruding from the flow path 110 toward the elastic members 104a, 104b.

Description

[Technical Field]

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

[0002] For example, Patent Document 1 discloses a structure in which a vibration-damping and heat-insulating member (elastic member) is attached to the lower surface of an evaporator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-160475 Summary of the Invention [Problem to be solved by the invention]

[0004] A flow path can be provided below the evaporator described in Patent Document 1 to receive and drain condensed water generated by the evaporator. In this case, the vibration-damping and heat-insulating member has a certain weight, so it may deteriorate over time and sag, blocking the flow path. This phenomenon can also occur in other on-board components that have a part through which a fluid flows, such as an evaporator.

[0005] In view of these problems, the present invention aims to provide a drainage structure for a vehicle that prevents the flow path from becoming blocked even if an elastic member attached to the underside of an on-board component hangs down toward the flow path. [Means for solving the problem]

[0006] In order to solve the above problem, a typical configuration of the present invention is characterized by comprising an elastic member attached to the underside of an on-board component mounted on a vehicle, a flow path arranged at a distance below the on-board component to direct liquid dripping from the on-board component in a predetermined direction, and a protrusion protruding from the flow path toward the elastic member. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a drainage structure for a vehicle that prevents the flow path from being blocked even if an elastic member attached to the lower surface of an on-vehicle component hangs down toward the flow path. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view of a drainage structure for a vehicle according to a first embodiment of the present invention, as viewed from the front. [Figure 2] 2 is a cross-sectional view of the drainage structure for a vehicle in FIG. 1 as viewed from the downstream side. [Figure 3] FIG. 2 is a plan view of the vehicle drainage structure of FIG. [Figure 4] 2 is a perspective view of the vehicle drainage structure of FIG. 1 as seen obliquely from above. [Figure 5] FIG. 10 is a perspective view of a drainage structure for a vehicle according to a second embodiment of the present invention, as viewed obliquely from above. [Figure 6] FIG. 10 is a perspective view of a drainage structure for a vehicle according to a third embodiment of the present invention, as viewed obliquely from above. [Figure 7] FIG. 1 is a plan view of a drainage structure for a vehicle according to fourth to seventh embodiments of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] One embodiment of the present invention is characterized by comprising an elastic member attached to the underside of an on-board component mounted on a vehicle, a flow path arranged at a distance below the on-board component to direct liquid dripping from the on-board component in a predetermined direction, and a protrusion protruding from the flow path toward the elastic member.

[0010] According to the present invention, even if the elastic member peels off from the lower surface of the evaporator and hangs down, the protrusion can support the elastic member, thereby preventing the flow path from being blocked by the elastic member.

[0011] The protrusion may protrude toward the center of the elastic member in the longitudinal direction.

[0012] With this structure, the protrusion can support the center of the elastic member in the longitudinal direction, which becomes the antinode of vibration and sags to the lowest position due to vibration, thereby more effectively preventing the flow path from becoming blocked.

[0013] It is preferable that there are a plurality of protrusions, and the plurality of protrusions are arranged at intervals in a direction intersecting the flow path.

[0014] This structure allows water to flow between the multiple protrusions that are spaced apart in a direction intersecting the flow path, reducing the obstruction of water flow caused by the multiple protrusions. In addition, the elastic member is stably supported by the two protrusions.

[0015] There may be a plurality of protrusions, and the plurality of protrusions may be arranged at intervals in the direction along the flow path.

[0016] This structure allows water to flow between the two protrusions spaced apart along the flow path, reducing the obstruction of water flow caused by multiple protrusions. In addition, the elastic member is stably supported by the two protrusions.

[0017] The plurality of protrusions may include guide protrusions that are inclined from the outside to the inside in a direction intersecting the flow path toward the downstream side of the flow path and guide the flow of liquid.

[0018] This structure allows the water to flow faster toward the center of the flow path along the guide protrusions.

[0019] The flow path has a bottom wall, and the bottom wall preferably has an inclined portion that slopes downward from one side to the other in a direction intersecting the flow path and in which the above-mentioned guide protrusion is arranged, and a drain outlet that is arranged on the other side of the inclined portion of the bottom wall and downstream of the above-mentioned guide protrusion for discharging liquid.

[0020] With this structure, water flows efficiently along the slope to the drain outlet and is discharged from the drain outlet.

[0021] The flow path may have a bottom wall and side walls extending from both sides of the bottom wall, and each of the plurality of protrusions may be disposed on the bottom wall at a distance from the side walls. With this structure, the liquid can also flow between the protrusions and the side walls.

[0022] There may be one or more elastic members, and the elastic members may form a plurality of elastic bulge portions spaced apart in a direction intersecting the flow path and bulging below the underside of the on-vehicle component due to deformation over time, and the plurality of protrusions may be arranged so as to protrude respectively toward each of the plurality of elastic bulge portions.

[0023] This structure prevents the multiple elastic bulges that swell due to deformation of one or more elastic members over time from sagging between the multiple protrusions, thereby suppressing a decrease in water drainage efficiency between the multiple protrusions.

[0024] The flow path may be provided with a drain outlet, and the protrusion may be disposed around the drain outlet. This configuration can prevent the elastic member from sagging down and blocking the drain outlet.

[0025] The protrusion is preferably arranged so that at least the cross-sectional area on the bottom side of the flow path is smaller than the cross-sectional area of ​​the drain outlet on the flow path side, and is spaced apart from the drain outlet. With this configuration, the cross-sectional area of ​​the protrusion on the bottom wall side is smaller than the cross-sectional area of ​​the drain outlet on the flow path side, preventing the flow path area around the drain outlet from becoming narrower. Furthermore, since the protrusion is spaced apart from the drain outlet, water can easily flow around the drain outlet, improving drainage performance. Note that if the protrusion protrudes beyond the outer periphery of the drain outlet, water will be less likely to flow in that area. [Example]

[0026] (First Example) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Dimensions, materials, and other specific values ​​shown in these embodiments are merely examples for facilitating understanding of the invention and, unless otherwise specified, do not limit the present invention. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0027] Fig. 1 is a cross-sectional view of a vehicle drainage structure 100 according to a first embodiment of the present invention, as seen from the front. In Fig. 1 and all other drawings, the front-to-rear direction of the vehicle is indicated by arrows F (Forward) and B (Backward), the left and right directions in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the up-down direction is indicated by arrows U (Upward) and D (Downward).

[0028] The drainage structure 100 for a vehicle includes a first elastic member 104a (see FIG. 2) and a second elastic member 104b as a plurality of strip-shaped or plate-shaped elastic members attached to the underside of an evaporator 102 as an on-board component mounted on a vehicle. These elastic members 104a, 104b are made of materials having at least one of vibration damping performance, sound absorption performance, and heat insulation performance.

[0029] Furthermore, in this embodiment, the elastic members 104a and 104b are made of butyl tape, but they may be made of other elastic materials. Furthermore, in this embodiment, the elastic members 104a and 104b are attached to the lower surface of the evaporator 102 by bonding with an adhesive, but they may also be attached to the lower surface of the evaporator 102 by adhesion or suction. Alternatively, both ends of the elastic members 104a and 104b in the vehicle width direction may be fixed to the lower surface of the evaporator 102 by screws or the like.

[0030] The elastic member 104b may sag over time due to gravity or vibration. The elastic member 104b shown by the solid line in Fig. 1 shows the initial state where it is attached to the underside of the evaporator 102, while the elastic member 104b shown by the two-dot chain line in Fig. 1 shows the state where it has sagged due to deterioration over time.

[0031] FIG. 2 is a cross-sectional view of the vehicle drainage structure 100 of FIG. 1 as viewed from the downstream side. As shown in FIG. 2, the first elastic member 104a and the second elastic member 104b are arranged at an interval in the flow path width direction M, which is a direction intersecting the flow path 110. Each of the first elastic member 104a and the second elastic member 104b forms an elastic bulge portion that bulges downward below the evaporator 102 due to deformation over time between one end side and the other end side of the flow path 110 in the flow path width direction M. Note that in this embodiment, there are two elastic members, the first elastic member 104a and the second elastic member 104b, but this is not limited thereto and three or more elastic members may be used. These examples show that there are multiple elastic members and multiple elastic bulge portions.

[0032] In addition, in this embodiment, there are two elastic members, the first elastic member 104a and the second elastic member 104b, but this is not limiting and a single elastic member may be used. Alternatively, one elastic member may form a plurality of elastic bulging portions that bulge due to deformation over time below the lower surface of the evaporator 102 at intervals in the flow path width direction M, which is a direction intersecting the flow path 110.

[0033] The vehicle drainage structure 100 includes a flow path 110. The flow path 110 is formed as a recessed portion recessed downward. The flow path 110 has a bottom wall 112 and side walls 113a, 113b erected on both sides of the bottom wall 112 in the flow path width direction M. The flow path 110 is disposed below and spaced from the evaporator 102 to which the first elastic member 104a and the second elastic member 104b are attached. The flow path 110 causes water, which acts as a liquid and drips from the evaporator 102, to flow in a predetermined direction.

[0034] As shown in Fig. 1, the flow path 110 extends in the longitudinal direction of the elastic members 104a and 104b. As shown in Fig. 1, the flow path 110 has a slide 110a that allows dripping water to flow downward. In this embodiment, the slide 110a is formed by a platform that descends from upstream to downstream, but is not limited to this configuration and may be formed by a groove having a floor that descends from upstream to downstream, or by a tubular member whose inner wall floor surface descends from upstream to downstream.

[0035] 2, the bottom wall 112 has a flat portion 112a that is flat in the flow path width direction M of the flow path 110. The bottom wall 112 has an inclined portion 112b that is inclined so as to become lower from one side to the other in the flow path width direction M, which is a direction intersecting the flow path 110. An end of the flat portion 112a and an end on the lower side of the inclined portion 112b are connected.

[0036] FIG. 3 is a plan view of the vehicle drainage structure 100 of FIG. 1. As shown in FIG. 3, a step 112c is formed at the boundary between the flat portion 112a and the inclined portion 112b. In a plan view, the step 112c is inclined with respect to the direction K along the flow path 110 as it approaches the rear of the vehicle. In FIG. 3, an inclined portion 112b is formed in an area forward of the step 112c and inclined downward toward the rear of the vehicle. A flat portion 112a is formed in an area rearward of the step 112c. Therefore, in the area forward of the step 112c, the inclined width increases as it approaches downstream in the direction K along the flow path. Furthermore, in the area rearward of the step 112c, the flat width decreases as it approaches downstream in the direction K along the flow path.

[0037] The bottom wall 112 has a drain outlet 112d that is located downstream of the inclined portion 112b in the direction K along the flow path 110 and on the other side of the flow path 110 in the flow path width direction M, and that discharges water. A cylindrical protrusion 112e is formed at a position adjacent to the upstream side of the drain outlet 112d as a protrusion that protrudes toward the evaporator 102 (see FIG. 1). A cylindrical protrusion 112f is formed at a position adjacent to the downstream side of the drain outlet 112d as a protrusion that protrudes toward the evaporator 102 (see FIG. 1).

[0038] In this way, the protrusions 112e and 112f are arranged around the drain hole 112d, and are configured so that the protrusions 112e and 112f can support the first elastic member 104a so that the first elastic member 104a does not block the drain hole 112d.

[0039] A downstream step section 130 is formed downstream of the step 112c. In plan view, the downstream step section 130 is formed closer to the direction K along the flow path 110 than the upstream side of the step 112c. The extension direction of the downstream step section 130 is directed toward the drain outlet 112d. This makes it easier for water to be guided to the drain outlet 112d.

[0040] Furthermore, protrusion 112e is located on an imaginary line extending downstream of stepped downstream portion 130 in a plan view, and protrusion 112e is cylindrical and is configured so as not to inhibit the flow of water to drain outlet 112d. Note that, in this embodiment, protrusions 112e and 112f are arranged on both sides of drain outlet 112d in direction K along flow path 110, but are not limited to this configuration and may be arranged on both sides in a direction intersecting direction K along flow path 110.

[0041] The protrusions 112e and 112f are arranged such that at least the cross-sectional area of the bottom side of the flow path 110 is smaller than the cross-sectional area of the flow path 110 side of the drain port 112d and is spaced apart from the drain port. In this embodiment, there are two protrusions, namely protrusions 112e and 112f, but the present invention is not limited to this configuration, and there may be one around the drain port 112d, or there may be three or more.

[0042] Further, the slide 110a is formed on the upstream side in the direction K along the flow path 110 and is inclined so as to descend as it goes downstream.

[0043] The position in the vehicle longitudinal direction at the downstream end of the slide 110a is aligned with the position in the vehicle longitudinal direction between the first protruding portion 114a and the second protruding portion 114b. Therefore, after the water descends from the slide 110a, it easily enters between the first protruding portion 114a and the second protruding portion 114b without hitting the first protruding portion 114a and the second protruding portion 114b, and a decrease in drainage efficiency is suppressed.

[0044] Regarding the dimensional ratio (A:B) in the flow path width direction M of the flat portion 112a and the inclined portion 112b, on the downstream side, the dimension of the flat portion 112a in the flow path width direction M is smaller than the dimension of the inclined portion 112b in the flow path width direction M (A < B). For this reason, water easily flows toward the flat portion 112a where the drain port 112d is located, and the drainage efficiency is increased.

[0045] The dimension of the inclined portion 112b in the vehicle longitudinal direction is narrow on the upstream side and wide on the downstream side, and the inclination angle of the inclined portion 112b increases as it goes upstream. For this reason, the water that has climbed onto the inclined portion 112b easily returns to the flat portion 112a on the drain port 112d side. <000017​​

[0047] As a result, compared to when the inclination angle of step 112c is constant near the four protrusions 114a to 114d, water moving in the direction of arrow J3 that climbs up onto inclined portion 112b is not used to slow down the force of water moving in the direction of arrow J8 that passes between first protrusion 114a and second protrusion 114b, and between third protrusion 114c and fourth protrusion 114d.

[0048] In addition, a return groove 120 is formed in the inclined portion 112b. The return groove 120 slopes downward from the front side of the vehicle and the left side in the vehicle width direction to the rear side of the vehicle and the right side in the vehicle width direction. Therefore, even if water flows downstream of the drain outlet 112d, the return groove 120 guides the water to the upstream drain outlet 112d.

[0049] FIG. 4 is a perspective view of the vehicle drainage structure 100 of FIG. 1, seen obliquely from above. As shown in FIG. 4, the vehicle drainage structure 100 includes a plurality of protrusions, namely, a first protrusion 114a, a second protrusion 114b, a third protrusion 114c, and a fourth protrusion 114d. The protrusions 114a to 114d are disposed in a region directly below the evaporator 102. The protrusions 114a and 114c protrude upward from the bottom wall 112 of the flow path 110 toward the elastic member 104a. The protrusions 114b and 114d protrude upward from the bottom wall 112 of the flow path 110 toward the elastic member 104b. As shown in FIG. 1, the protrusions 114a to 114d protrude toward a center 104M in the longitudinal direction of the elastic members 104a and 104b.

[0050] In this embodiment, the number of protrusions lined up in the fore-and-aft direction of the vehicle is two, but this is not limited to this configuration, and the number of elastic members lined up in the fore-and-aft direction of the vehicle can be increased to three or more, thereby increasing the number of elastic bulge portions that deform over time to three or more, and the number of protrusions that protrude toward each of the elastic bulge portions of these elastic members can be increased to three or more.

[0051] As shown in Fig. 4, the first protrusion 114a and the third protrusion 114c are spaced apart from the side wall 113a. The second protrusion 114b and the fourth protrusion 114d are spaced apart from the side wall 113b. As shown in Fig. 2, the distance between the first protrusion 114a and the side wall 113a is set larger than the distance between the second protrusion 114b and the side wall 113b. This improves the efficiency of drainage to the drain outlet 112d.

[0052] 4, the first protrusion 114a and the second protrusion 114b are arranged at an interval in the flow channel width direction M, which is a direction intersecting the flow channel 110. The third protrusion 114c and the fourth protrusion 114d are arranged at an interval in the flow channel width direction M, which is a direction intersecting the flow channel 110.

[0053] In this embodiment, two protrusions, first protrusion 114a and second protrusion 114b, are arranged side by side in the flow channel width direction M, but they may be one protrusion, or three or more protrusions may be arranged side by side in the flow channel width direction M. Similarly, in this embodiment, two protrusions, third protrusion 114c and fourth protrusion 114d, are arranged side by side in the flow channel width direction M, but they may be one protrusion, or three or more protrusions may be arranged side by side in the flow channel width direction M.

[0054] 4, the third protrusion 114c is disposed at a distance from the first protrusion 114a in the direction along the flow path 110. The third protrusion 114c is disposed downstream of the first protrusion 114a. The fourth protrusion 114d is disposed at a distance from the second protrusion 114b in the direction along the flow path 110. The fourth protrusion 114d is disposed downstream of the second protrusion 114b.

[0055] In this embodiment, the two protrusions, the third protrusion 114c and the first protrusion 114a, are arranged side by side in the direction along the flow channel 110, but they may be one protrusion, or three or more protrusions may be arranged side by side in the direction along the flow channel 110. Similarly, in this embodiment, the two protrusions, the fourth protrusion 114d and the second protrusion 114b, are arranged side by side in the direction along the flow channel 110, but they may be one protrusion, or three or more protrusions may be arranged side by side in the direction along the flow channel 110.

[0056] The first protrusion 114a and the third protrusion 114c are disposed below the first elastic member 104a, and the second protrusion 114b and the fourth protrusion 114d are disposed below the second elastic member 104b.

[0057] As shown in Fig. 4, protrusions 114a, 114b, 114c, and 114d have guide surfaces 114p, 114q, 114r, and 114s. Because of these guide surfaces 114p to 114s, protrusions 114a to 114d function as guide protrusions that guide the flow of water by inclining from the outside to the inside in a direction intersecting flow path 110 as they move downstream of flow path 110. Also, as shown in Fig. 2, the upper surface of second protrusion 114b on inclined portion 112b is formed to become lower as it moves from side wall 113b toward side wall 113a. The same applies to fourth protrusion 114d.

[0058] Next, the process by which water flows through the vehicle drainage structure 100 will be described. The longitudinal centers of the first elastic member 104a and the second elastic member 104b separate from the lower surface of the evaporator 102 and hang down (see the two-dot chain line in FIG. 1). The first protrusion 114a and the third protrusion 114c support the first elastic member 104a. The second protrusion 114b and the fourth protrusion 114d support the second elastic member 104b.

[0059] 4, water flows in the directions of arrow J1, J2, and J3. The water flowing in the direction of arrow J1 is divided into three parts: one flowing downstream along guide surface 114p, one flowing between first protrusion 114a and third protrusion 114c, and one flowing in the direction of arrow J5. The water flowing in the direction of arrow J3 is divided into three parts: one flowing downstream along guide surface 114q, one flowing between second protrusion 114b and fourth protrusion 114d, and one flowing in the direction of arrow J7.

[0060] The water flowing in the direction of arrow J2 continues to flow in the direction of arrow 8, including between the first protrusion 114a and the third protrusion 114c and between the second protrusion 114b and the fourth protrusion 114d. Finally, the water is discharged from the drain outlet 112d (see FIG. 3).

[0061] According to the structure of this embodiment, even if the elastic members 104a and 104b hang down toward the flow path 110, the protrusions 114a to 114d can support the elastic members 104a and 104b. Therefore, it is possible to prevent the flow path 110 from being blocked by the elastic members 104a and 104b.

[0062] Furthermore, the protrusions 114a to 114d can support the longitudinal center 104M (see FIG. 1) of the elastic members 104a and 104b, which becomes the antinode of vibration and hangs down to the lowest position due to vibration, thereby more effectively preventing the flow path 110 from being blocked.

[0063] Furthermore, water can flow between the first protrusion 114a and the second protrusion 114b, which are arranged at an interval in the flow path width direction M that intersects with the flow path 110, thereby reducing the obstruction of the water flow caused by the first protrusion 114a and the second protrusion 114b. Furthermore, the elastic members 104a and 104b are stably supported by the first protrusion 114a and the second protrusion 114b.

[0064] Furthermore, water can flow between the first protrusion 114a and the third protrusion 114c, and between the second protrusion 114b and the fourth protrusion 114d, which are spaced apart in the direction K along the flow path 110. This reduces the obstruction of water flow caused by the first protrusion 114a, the third protrusion 114c, the second protrusion 114b, and the fourth protrusion 114d. Furthermore, the first elastic member 104a is stably supported by the first protrusion 114a and the third protrusion 114c. Similarly, the second elastic member 104b is stably supported by the second protrusion 114b and the fourth protrusion 114d.

[0065] Furthermore, water can flow more quickly along protrusions 114a to 114d, which serve as guide protrusions, toward the center of flow path 110. Furthermore, water flows efficiently along inclined portion 112b toward drain outlet 112d and is discharged from drain outlet 112d.

[0066] In addition, since there is a gap between the first protrusion 114a and the side wall 113a and between the second protrusion 114b and the side wall 113b, water can also flow between the first protrusion 114a and the side wall 113a and between the second protrusion 114b and the side wall 113b.

[0067] Furthermore, because the first elastic member 104a and the second elastic member 104b are arranged at intervals in the flow path width direction M of the flow path 110, the multiple elastic bulges that bulge out due to deformation over time of the first elastic member 104a and the second elastic member 104b are prevented from sagging between the first protrusion 114a and the second protrusion 114b. This prevents a decrease in the efficiency of water discharge between the first protrusion 114a and the second protrusion 114b.

[0068] A drain port 112d is provided in the flow path 110, and the protrusions 112e and 112f are preferably arranged around the drain port 112d. This configuration can prevent the elastic member 104a from sagging down and blocking the drain port 112d.

[0069] Preferably, the protrusions 112e and 112f are arranged so that at least the cross-sectional area on the bottom side of the flow path 110 is smaller than the cross-sectional area of ​​the drain outlet 112d on the flow path side, and are spaced apart from the drain outlet 112d. With this configuration, the cross-sectional area of ​​the protrusions 112e and 112f on the bottom wall side is smaller than the cross-sectional area of ​​the drain outlet 112d on the flow path 110 side, preventing the flow path area around the drain outlet 112d from becoming narrower. Furthermore, because the protrusions 112e and 112f are spaced apart from the drain outlet 112d, water can easily flow around the drain outlet 112d, improving drainage performance. Note that if the protrusions 112e and 112f protruded from the outer periphery of the drain outlet 112d, water would not easily flow through that area.

[0070] Furthermore, refrigerant flow noise and vibration transmission noise from the compressor may be emitted from inside the evaporator 102 and may be heard as abnormal noises inside the vehicle. With the configuration of this embodiment, the flat, low-rigidity underside of the evaporator 102 is provided with unevenness using ribs or the like, thereby increasing the surface rigidity and preventing abnormal noises from resonating inside the evaporator 102 from becoming louder.

[0071] (Second Example) 5 is a perspective view of a drainage structure for a vehicle 200 according to a second embodiment of the present invention, seen from diagonally above. The drainage structure for a vehicle 200 differs from the first embodiment in that protrusions 214a and 214b are used as guide protrusions instead of protrusions 114a to 114d. As shown in FIG. 5, protrusion 214a is disposed on flat portion 112a of flow path 110. Furthermore, protrusion 214b is disposed on inclined portion 112b of flow path 110.

[0072] The protrusions 214a, 214b have guide surfaces 214p, 214v that slope from the outside to the inside in a direction intersecting the flow path 110 as they approach the downstream side of the flow path 110. The protrusions 214a, 214b guide the flow of water along the guide surfaces 214p, 214v.

[0073] The protrusions 214a, 214b also have downstream side surfaces 214q, 214w that slope from the inside to the outside in a direction intersecting the flow path 110 as they approach the downstream side of the flow path 110. The protrusions 214a, 214b also have straight surfaces 214r, 214x that connect the central ends of the guide surfaces 214p, 214v to the central ends of the downstream side surfaces 214q, 214w. The protrusions 214a, 214b also have upper surfaces 214s, 214y. The upper surfaces 214s, 214y have larger areas than those of the structure of the first embodiment, and therefore can stably support the first elastic member 104a and the second elastic member 104b that sag.

[0074] (Third Example) 6(a) is a perspective view of a vehicle drainage structure 300 according to a third embodiment of the present invention, viewed obliquely from above. The vehicle drainage structure 300 differs from the first embodiment in that it has a quadrangular prism-shaped protrusion 314 as a guide protrusion in addition to the protrusions 114c and 114d. The quadrangular prism-shaped protrusion 314 is formed to the same height as the protrusions 114c and 114d. The quadrangular prism-shaped protrusion 314 is provided in the flow path 110 upstream of the protrusions 114c and 114d, spaced a predetermined distance from the protrusions 114c and 114d.

[0075] This structure has a larger area in a plan view than the structures of the first or second embodiment, so that the rectangular pillar-shaped protrusion 314 can stably support the hanging elastic members 104a, 104b. Also, because there is no water flowing in the direction of arrow J2 in Fig. 4, the amount of water flowing in the direction of arrow J8 in Fig. 6(a) is less than in Example 1, and the amount of water flowing in the directions of arrow J5 and arrow J7 in Fig. 6(a) is greater.

[0076] The quadrangular prism-shaped protrusion 314 may further include the following configuration. FIG. 6(b) is a perspective view of a portion of a vehicle drainage structure according to a modified example of the present invention, viewed obliquely from above. As shown in FIG. 6(b), the vehicle drainage structure includes a quadrangular prism-shaped protrusion 354 having an outer shape similar to the quadrangular prism-shaped protrusion 314 of the vehicle drainage structure 300. The quadrangular prism-shaped protrusion 354 has a communication portion 355 that connects the upstream side and the downstream side. This structure allows water to flow even in the center of the flow path 110 in the vehicle width direction, making it easier for water to flow.

[0077] In this embodiment, the lower surface of the communication portion 355 in Figure 6(b) is located on the bottom wall 112 and formed in a tunnel shape, but this configuration is not limited to this and it may be located at a position higher than the bottom wall 112.

[0078] (Fourth Example) 7(a) is a plan view of a drainage structure for a vehicle 400 according to a fourth embodiment of the present invention. The drainage structure for a vehicle 400 differs from the first embodiment in that, instead of the protrusions 114a to 114d, the guide protrusions include protrusions 414a and 414b that are inclined toward the rear of the vehicle toward the downstream side of the flow path 110 to guide the flow of water. The protrusions 414a and 414b are arranged parallel to each other in a plan view.

[0079] (Fifth Example) 7(b) is a plan view of a vehicle drainage structure 500 according to a fifth embodiment of the present invention. The vehicle drainage structure 500 differs from the first embodiment in that, instead of the protrusions 114a to 114d, the guide protrusions include protrusions 514a to 514e that are linearly arranged in a staggered pattern in the flow path width direction M of the flow path 110 in a plan view. The protrusion 514c is located between the protrusions 514a and 514b in the flow path width direction M. The protrusion 514c is also located between the protrusions 514a and 514d in the direction K along the flow path 110.

[0080] (Sixth Example) 7(c) is a plan view of a drainage structure 600 for a vehicle according to a sixth embodiment of the present invention. The drainage structure 600 for a vehicle differs from the first embodiment in that, instead of the protrusions 114a to 114d, the guide protrusions include U-shaped protrusions 614a and 614b that open on the downstream side of the flow path 110 in plan view. Note that the protrusions may also be fan-shaped (semi-cylindrical) protrusions that widen on the downstream side of the flow path 110 in plan view.

[0081] (Seventh Example) 7(d) is a plan view of a drainage structure 700 for a vehicle according to a seventh embodiment of the present invention. The drainage structure 700 for a vehicle differs from the first embodiment in that, instead of the protrusions 114a to 114d, the guide protrusions include protrusions 714a and 714b that are inclined from the inside to the outside in a direction intersecting the flow path 110 toward the downstream side of the flow path 110 to guide the flow of water.

[0082] (Variation) Alternatively, the protrusion may be formed in a cylindrical shape. Alternatively, the protrusion may be formed separately from the flow channel 110 and may be attached to the flow channel 110 detachably.

[0083] In the above explanation, the flow path width direction M, which is perpendicular to the flow path 110, has been given as an example of a direction that intersects with the flow path 110, but the direction that intersects with the flow path 110 also includes directions that intersect with the flow path 110 at other angles.

[0084] In the first to seventh embodiments, an evaporator 102 is used as an in-vehicle component, but an in-vehicle component having a path through which a fluid flows, such as a water-cooled motor or an oil-cooled motor, may also be used as the in-vehicle component.

[0085] In the first embodiment, it has been explained that there are a plurality of protrusions 114a to 114d as guide protrusions, but the present invention is not limited to this configuration, and there may be only one protrusion.

[0086] In the first to seventh embodiments, the protrusions 114a to 114d, the projections 112e, 112f, the protrusions 214a, 214b, and the rectangular pillar-shaped protrusions 314, 354 are described as being integral with the bottom wall 112, but are not limited to this configuration and may be configured as separate parts from the bottom wall 112 and attached to the bottom wall 112 by welding, bonding, screwing, or fitting.

[0087] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that these modifications and alterations also fall within the technical scope of the present invention.

[0088] Furthermore, the present invention can be practiced by freely combining inventions described in claims and examples, regardless of the dependent relationships of the claims. [Industrial Applicability]

[0089] The present invention can be used in a drainage structure for a vehicle. [Explanation of symbols]

[0090] 100...Drainage structure for vehicle, 102...Evaporator (vehicle part), 104a...first elastic member, 104b...second elastic member, 104M…Center, 110...flow path, 110a...slide, 112...bottom wall, 112a...flat area, 112b...slanted part, 112c...steps, 112d...Drain port, 112e, 112f...Protrusion (projection), 113a, 113b...side wall, 114a...first protrusion (guide protrusion / protrusion), 114p, ...guide surface, 114b...second protrusion (guide protrusion / protrusion), 114q...Guide surface, 114c...third protrusion (guide protrusion / protrusion), 114r...guide surface, 114d...fourth protrusion (guide protrusion / protrusion), 114s, ... guide surface, 200...Drainage structure for vehicle, 214a...protrusion, 214p...Guide surface, 214q...downstream side, 214r...straight surface, 214s...Top surface, 214b...protrusion, 214v...Guide surface, 214w…downstream side, 214x...straight surface, 214y...Top surface, 300...Drainage structure for vehicle, 314...quadrangular prism-like protrusion, 400...Drainage structure for vehicle, 414a, 414b...protrusion, 500...Drainage structure for vehicle, 514a, 514b, 514c, 514d, 514e... protrusion, 600...Drainage structure for vehicle, 614a, 614b...protrusion, 700...Drainage structure for vehicle, 714a, 714b...protrusion

Claims

1. an elastic member attached to a lower surface of an on-vehicle component mounted on a vehicle; a flow path arranged below the on-vehicle component at a distance, for allowing liquid dripping from the on-vehicle component to flow in a predetermined direction; a protrusion protruding from the flow path toward the elastic member and extending in a direction intersecting the flow path; A drainage structure for a vehicle, comprising:

2. 2. The drainage structure for a vehicle according to claim 1, wherein the protrusion protrudes toward the center of the elastic member in the longitudinal direction.

3. A drainage structure for a vehicle as described in Claim 1, characterized in that the protrusion is a guide protrusion that slopes from the outside to the inside in a direction intersecting the flow path as it moves downstream of the flow path, guiding the flow of liquid.

4. 2. The drainage structure for a vehicle according to claim 1, wherein the protrusions are plural, and the plural protrusions are arranged at intervals in a direction intersecting the flow path.

5. 2. The drainage structure for a vehicle according to claim 1, wherein the protrusion is a plurality of protrusions, the plurality of protrusions being arranged at intervals in a direction along the flow path.

6. An elastic member attached to the underside of an on-board component mounted on a vehicle; a flow path arranged below the on-vehicle component at a distance, for allowing liquid dripping from the on-vehicle component to flow in a predetermined direction; a protrusion protruding from the flow path toward the elastic member; Equipped with The protrusions are provided in a plurality of portions, and the protrusions are arranged at intervals in a direction intersecting the flow path or in a direction along the flow path, A drainage structure for a vehicle, characterized in that the plurality of protrusions include guide protrusions that slope from the outside to the inside in a direction intersecting the flow path as they move downstream of the flow path, guiding the flow of liquid.

7. the flow channel has a bottom wall; The bottom wall is an inclined portion inclined so as to become lower from one side to the other side in a direction intersecting the flow path, and on which the guide protrusion is disposed; a drain port that is disposed on the bottom wall on the other side of the inclined portion and downstream of the guide protrusion and that drains liquid; 7. The drainage structure for a vehicle according to claim 6, further comprising:

8. The flow path has a bottom wall and side walls standing on both sides of the bottom wall, 6. The drainage structure for a vehicle according to claim 4, wherein each of the plurality of protrusions is disposed on the bottom wall at a distance from the side wall.

9. An elastic member attached to the underside of an on-board component mounted on a vehicle; a flow path arranged below the on-vehicle component at a distance, for allowing liquid dripping from the on-vehicle component to flow in a predetermined direction; a protrusion protruding from the flow path toward the elastic member; Equipped with The protrusions are provided in a plurality of portions, and the protrusions are arranged at intervals in a direction intersecting the flow path, the elastic member is one or more in number, and forms a plurality of elastic bulging portions spaced apart in a direction intersecting the flow path, the elastic bulging portions bulging downward due to deformation over time below the lower surface of the on-vehicle component; The vehicle drainage structure is characterized in that the plurality of protrusions are provided so as to protrude respectively toward the plurality of elastic bulging portions.

10. A drain port is provided in the flow path, 10. The drainage structure for a vehicle according to claim 1, 6, or 9, wherein the protrusion is disposed around the drain outlet.

11. An elastic member attached to the underside of an on-board component mounted on a vehicle; a flow path arranged below the on-vehicle component at a distance, for allowing liquid dripping from the on-vehicle component to flow in a predetermined direction; a protrusion protruding from the flow path toward the elastic member; Equipped with A drain port is provided in the flow path, The protrusion is arranged around the drain outlet, and at least the cross-sectional area of ​​the bottom side of the flow path is smaller than the cross-sectional area of ​​the flow path side of the drain outlet, and is arranged so as to be spaced apart from the drain outlet.

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