Vehicle drainage structure

Abstract

This invention provides a vehicle drainage structure that can prevent the flow path from being blocked even if an elastic member attached to the underside of an in-vehicle component sags. [Solution] The vehicle drainage structure 100 comprises elastic members 104a and 104b attached to the lower surface of an on-board component mounted on a vehicle, a flow path 110 arranged at intervals below the on-board component to allow liquid dripping from the on-board component to flow in a predetermined direction, and protrusions 114a to 114d projecting from the flow path 110 toward the elastic members 104a and 104b.

Description

Technical Field

[0001] The present invention relates to a drainage structure for vehicles.

Background Art

[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 Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Below the evaporator as described in this Patent Document 1, a flow path can be arranged to receive and drain the condensed water generated by the evaporator by flowing it. In this case, since the vibration damping and heat insulating member has a certain weight, it may deteriorate over time and sag, blocking the flow path. Such a phenomenon can also occur in other in-vehicle parts having a part where fluid flows, such as an evaporator.

[0005] In view of such problems, an object of the present invention is to provide a vehicle drainage structure that suppresses the flow path from being blocked even if an elastic member attached to the lower surface of an in-vehicle part sags toward the flow path.

Means for Solving the Problems

[0006] In order to solve the above problems, a typical configuration of the present invention includes an elastic member attached to the lower surface of an in-vehicle part mounted on a vehicle, a flow path arranged at an interval below the in-vehicle part to flow the liquid hanging from the in-vehicle part in a predetermined direction, and a protruding portion 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 vehicle drainage structure that prevents the flow path from being blocked even if an elastic member attached to the lower surface of an in-vehicle component hangs down toward the flow path. [Brief explanation of the drawing]

[0008] [Figure 1] This is a cross-sectional view of a vehicle drainage structure according to the first embodiment of the present invention, viewed from the front. [Figure 2] Figure 1 is a cross-sectional view of the vehicle drainage structure seen from the downstream side. [Figure 3] Figure 1 is a plan view of the vehicle drainage structure. [Figure 4] Figure 1 is a perspective view of the vehicle drainage structure, seen from diagonally above. [Figure 5] This is a perspective view of a vehicle drainage structure according to a second embodiment of the present invention, viewed from diagonally above. [Figure 6] This is a perspective view of a vehicle drainage structure according to a third embodiment of the present invention, viewed from diagonally above. [Figure 7] This is a plan view of a vehicle drainage structure according to the fourth to seventh embodiments of the present invention. [Modes for carrying out the invention]

[0009] One embodiment of the present invention is characterized by comprising: an elastic member attached to the lower surface of an on-board component mounted on a vehicle; a flow path positioned at intervals below the on-board component to allow liquid dripping from the on-board component to flow in a predetermined direction; and a protrusion extending 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 protruding portion can support the elastic member. Therefore, it is possible to prevent the flow path from being blocked by the elastic member.

[0011] The protruding portion should ideally project toward the center of the elastic member in the longitudinal direction.

[0012] According to this structure, since the protruding portion can support the center in the longitudinal direction that hangs down to the lowest position, which becomes the antinode of vibration among the elastic members due to vibration, it is possible to more effectively suppress the blockage of the flow path.

[0013] There may be a plurality of protruding portions, and the plurality of protruding portions may be arranged at intervals in the direction intersecting the flow path.

[0014] According to this structure, since water can flow between a plurality of protruding portions arranged at intervals in the direction intersecting the flow path, the inhibition of the water flow by the plurality of protruding portions is alleviated. Further, the elastic member is stably supported by the two protruding portions.

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

[0016] According to this structure, since water can flow between two protruding portions arranged at intervals in the direction along the flow path, the inhibition of the water flow by the plurality of protruding portions is alleviated. Further, the elastic member is stably supported by the two protruding portions.

[0017] The plurality of protruding portions may include guide protruding portions that incline from the outside to the inside in the direction intersecting the flow path as going downstream of the flow path to guide the flow of the liquid.

[0018] According to this structure, water can flow faster toward the center side of the flow path along the guide protruding portions.

[0019] The flow path has a bottom wall, and the bottom wall is inclined to become lower as going from one side to the other side in the direction intersecting the flow path, and has an inclined portion where the guide protruding portions are arranged, and a drain port that is arranged on the other side of the bottom wall than the inclined portion and downstream of the guide protruding portions to discharge the liquid.

[0020] According to this structure, water efficiently flows along the inclined portion to the drain outlet and is discharged from the drain outlet.

[0021] The flow path may have a bottom wall and side walls erected on both sides of the bottom wall, and each of the plurality of protruding portions may be arranged on the bottom wall at an interval from the side wall. According to this structure, the liquid can also flow between the protruding portion and the side wall.

[0022] There is one or more elastic members, which form a plurality of elastic bulging portions that bulge downward from the lower surface of the in-vehicle component over time at intervals in a direction intersecting the flow path, and there may be a plurality of protruding portions that protrude respectively toward each of the plurality of elastic bulging portions.

[0023] According to this structure, it is possible to prevent a plurality of elastic bulging portions formed by the one or more elastic members bulging due to deformation over time from hanging down between the plurality of protruding portions. Therefore, a decrease in the drainage efficiency between the plurality of protruding portions is suppressed.

[0024] A drain outlet is provided in the flow path, and the protruding portion may be arranged around the drain outlet. According to this configuration, it is possible to prevent the elastic member from hanging down and blocking the drain outlet.

[0025] The protruding portion may be arranged such that 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 spaced apart from the drain outlet. According to this configuration, since the cross-sectional area of the bottom wall side of the protruding portion is smaller than the cross-sectional area of the flow path side of the drain outlet, an increase in the flow path area around the drain outlet is suppressed. Also, since the protruding portion is spaced apart from the drain outlet, it is easier for water to flow around the drain outlet and the drainage performance is enhanced. Note that if the protruding portion protrudes from the outer periphery of the drain outlet, it is difficult for water to flow in that portion.

Embodiment

[0026] (First Embodiment) Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. The dimensions, materials, and other specific numerical values ​​shown in these embodiments are merely illustrative to facilitate understanding of the invention and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals to avoid redundant explanations, and elements not directly related to the present invention are omitted from the illustrations.

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

[0028] The vehicle drainage structure 100 includes a first elastic member 104a (see Figure 2) and a second elastic member 104b, which are multiple strip-shaped or plate-shaped elastic members attached to the lower surface of the evaporator 102, which is an on-board component mounted on a vehicle. These elastic members 104a and 104b are made of materials having at least one of the following properties: vibration damping performance, sound absorption performance, and heat insulation performance.

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

[0030] The elastic member 104b may sag over time due to gravity and vibration. The elastic member 104b shown by the solid line in Figure 1 represents its initial state when attached to the lower surface of the evaporator 102, while the elastic member 104b shown by the dashed line in Figure 1 represents its state after sagging due to deterioration over time.

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

[0032] Furthermore, although this embodiment includes two elastic members, a first elastic member 104a and a second elastic member 104b, it is not limited to this, and may be a single elastic member. Alternatively, a single elastic member may form multiple elastic bulges that expand due to deformation over time, spaced apart in the flow path width direction M, which is the direction intersecting the flow path 110, and extending below the lower surface of the evaporator 102.

[0033] The vehicle drainage structure 100 includes a flow path 110. The flow path 110 is formed by a recess that is indented downwards. The flow path 110 has a bottom wall 112 and side walls 113a and 113b erected on both sides of the bottom wall 112 in the flow path width direction M. The flow path 110 is spaced below the evaporator 102 to which the first elastic member 104a and the second elastic member 104b are attached. The flow path 110 allows water, which is dripping from the evaporator 102, to flow in a predetermined direction.

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

[0035] As shown in Figure 2, the bottom wall 112 has a flat portion 112a that is flat in the flow width direction M of the flow channel 110. The bottom wall 112 has an inclined portion 112b that slopes downward from one side to the other in the flow width direction M, which is the direction intersecting the flow channel 110. The end of the flat portion 112a and the lower end of the inclined portion 112b are connected.

[0036] Figure 3 is a plan view of the vehicle drainage structure 100 shown in Figure 1. As shown in Figure 3, a step 112c is formed at the boundary between the flat section 112a and the inclined section 112b. In a plan view, the step 112c is inclined with respect to the direction K along the flow path 110 as it moves towards the rear of the vehicle. In Figure 3, the inclined section 112b is formed in the area in front of the step 112c and slopes downward toward the rear of the vehicle. The flat section 112a is formed in the area behind the step 112c. Therefore, in the area in front of the step 112c, the inclination width increases as it moves downstream in the direction K along the flow path. Also, in the area behind the step 112c, the flat width decreases as it moves downstream in the direction K along the flow path.

[0037] The bottom wall 112 is located downstream of the inclined portion 112b in the direction K along the flow path 110 and on the other side in the flow path width direction M of the flow path 110, and has a drain port 112d for discharging water. A cylindrical projection 112e is formed next to the drain port 112d on the upstream side, projecting toward the evaporator 102 (see Figure 1). A cylindrical projection 112f is formed next to the drain port 112d on the downstream side, projecting toward the evaporator 102 (see Figure 1).

[0038] Thus, the projections 112e and 112f are positioned around the drain opening 112d. Therefore, the projections 112e and 112f are configured to support the first elastic member 104a so that the first elastic member 104a does not block the drain opening 112d.

[0039] A downstream section 130 of the step 112c is formed on the downstream side of the step 112c. In a plan view, the downstream section 130 is formed to be closer to the direction K along the flow path 110 than the upstream side of the step 112c. The direction in which the downstream section 130 extends is directed toward the drain outlet 112d. Therefore, water is more easily guided toward the drain outlet 112d.

[0040] Furthermore, a projection 112e is located on a virtual line extending virtually downstream from the stepped downstream section 130 in a plan view. Since the projection 112e is formed in a cylindrical shape, it is configured not to restrict the flow of water to the drain outlet 112d. In this embodiment, the projections 112e and 112f are arranged on both sides of the drain outlet 112d in the direction K along the flow path 110, but the configuration is not limited to this, and they may also be arranged on both sides in a direction intersecting the direction K along the 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 112e and 112f, but the configuration is not limited to this. 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 protrusion 114a and the second protrusion 114b. Therefore, after the water descends the slide 110a, it easily enters between the first protrusion 114a and the second protrusion 114b without hitting the first protrusion 114a and the second protrusion 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). Therefore, water easily flows toward the flat portion 112a where the drain port 112d is located, and the drainage efficiency is high.

[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. Therefore, the water that has climbed onto the inclined portion 112b easily returns to the flat portion 112a on the drain port 112d side.

[0046] Further, the inclination angle of the inclined portion 112b decreases as it goes downstream. Therefore, among the water in the direction of arrow J3 that has climbed onto the inclined portion 112b, the water in the direction of arrow J7 that is guided to the downstream side of the second protrusion 114b and the fourth protrusion 114d not only flows in the direction of arrow J9 but also easily flows on the inclined portion 112b to a position close to the drain port 112d and flows in the direction of arrow J10.

[0047] As a result, compared to the case where the inclination angle of the step 112c is constant near the four protrusions 114a to 114d, the water in the direction of arrow J3 that rides onto the inclined section 112b does not have to be used to reduce the momentum of the water in the direction of arrow J8 that passes between the first protrusion 114a and the second protrusion 114b, and between the third protrusion 114c and the fourth protrusion 114d.

[0048] Furthermore, a return groove 120 is formed in the inclined section 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 beyond the drain outlet 112d, the return groove 120 guides it back to the drain outlet 112d upstream.

[0049] Figure 4 is a perspective view of the vehicle drainage structure 100 of Figure 1, viewed from diagonally above. As shown in Figure 4, the vehicle drainage structure 100 includes a first protrusion 114a, a second protrusion 114b, a third protrusion 114c, and a fourth protrusion 114d as a plurality of protrusions. The protrusions 114a to 114d are located in the area directly below the evaporator 102. The protrusions 114a and 114c project upward from the bottom wall 112 of the flow path 110 toward the elastic member 104a. The protrusions 114b and 114d project upward from the bottom wall 112 of the flow path 110 toward the elastic member 104b. Also, as shown in Figure 1, the protrusions 114a to 114d project toward the center 104M in the longitudinal direction of the elastic members 104a and 104b.

[0050] In this embodiment, the number of protrusions aligned in the longitudinal direction of the vehicle is two, but the configuration is not limited to this. The number of elastic members aligned in the longitudinal direction of the vehicle may be increased to three or more, thereby increasing the number of elastic bulges that deform over time to three or more, and the number of protrusions projecting toward each of these elastic bulges of the elastic members may also be increased to three or more.

[0051] Furthermore, as shown in Figure 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. Note that, as shown in Figure 2, the distance between the first protrusion 114a and the side wall 113a is set to be greater than the distance between the second protrusion 114b and the side wall 113b. This improves the drainage efficiency up to the drain port 112d.

[0052] As shown in Figure 4, the first protrusion 114a and the second protrusion 114b are spaced apart in the direction of the width of the flow path 110, which is the direction intersecting the flow path 110. The third protrusion 114c and the fourth protrusion 114d are spaced apart in the direction of the width of the flow path 110, which is the direction intersecting the flow path 110.

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

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

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

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

[0057] As shown in Figure 4, the protrusions 114a, 114b, 114c, and 114d have guide surfaces 114p, 114q, 114r, and 114s, respectively. Because of these guide surfaces 114p to 114s, the protrusions 114a to 114d function as guide protrusions that incline from the outside to the inside in the direction intersecting the flow path 110 as they move downstream of the flow path 110, guiding the flow of water. Also, as shown in Figure 2, the upper surface of the second protrusion 114b on the inclined portion 112b is formed to be lower as it moves from the side wall 113b side towards the side wall 113a. The same applies to the 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 peel off from the lower surface of the evaporator 102 and hang down (see the dashed line in Figure 1). The first projection 114a and the third projection 114c support the first elastic member 104a. The second projection 114b and the fourth projection 114d support the second elastic member 104b.

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

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

[0061] According to the structure of this embodiment described above, 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 central part 104M (see Figure 1) in the longitudinal direction of the elastic members 104a and 104b, which becomes an antinode of vibration due to vibration and hangs down to the lowest position, thus more effectively suppressing the blocking of the flow path 110.

[0063] Furthermore, since the water can flow between the first protrusion 114a and the second protrusion 114b, which are spaced apart in the direction of the width of the flow path 110 and intersect with the flow path 110, the obstruction of water flow by the first protrusion 114a and the second protrusion 114b is mitigated. In addition, 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. Therefore, obstruction of water flow by the first protrusion 114a, the third protrusion 114c, the second protrusion 114b, and the fourth protrusion 114d is mitigated. In addition, 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 towards the center of the flow path 110 along the protrusions 114a to 114d, which act as guide protrusions. Also, water flows efficiently along the inclined section 112b to the drain port 112d and is discharged from the drain port 112d.

[0066] Furthermore, because 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, since the first elastic member 104a and the second elastic member 104b are spaced apart in the width direction M of the flow path 110, it is prevented that multiple elastic bulges formed by deformation of the first elastic member 104a and the second elastic member 104b over time will hang down between the first protrusion 114a and the second protrusion 114b. Therefore, a decrease in the water discharge efficiency between the first protrusion 114a and the second protrusion 114b is suppressed.

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

[0069] The projections 112e and 112f are preferably positioned such that the cross-sectional area on the bottom side of the flow path 110 is smaller than the cross-sectional area on the flow path side of the drain port 112d, and that they are spaced apart from the drain port 112d. With this configuration, since the cross-sectional area on the bottom wall side of the projections 112e and 112f is smaller than the cross-sectional area on the flow path 110 side of the drain port 112d, the narrowing of the flow path area around the drain port 112d is suppressed. In addition, since the projections 112e and 112f are spaced apart from the drain port 112d, water can easily flow around the drain port 112d, improving drainage performance. If the projections 112e and 112f were to protrude from the outer circumference of the drain port 112d, water would have difficulty flowing to that area.

[0070] Furthermore, refrigerant flow noise and vibration transmission noise from the compressor are emitted from inside the evaporator 102 and may be heard as abnormal noise in the room. With the configuration of this embodiment, the surface rigidity is increased by adding irregularities such as ribs to the flat surface on the underside of the evaporator 102, which has low rigidity, and it is possible to prevent the abnormal noise from resonating from inside the evaporator 102 and becoming even louder.

[0071] (Second example) Figure 5 is a perspective view of a vehicle drainage structure 200 according to a second embodiment of the present invention, viewed from diagonally above. The vehicle drainage structure 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 Figure 5, protrusion 214a is positioned on the flat portion 112a of the flow path 110. Also, protrusion 214b is positioned on the inclined portion 112b of the flow path 110.

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

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

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

[0075] Due to this structure, the area in plan view is larger compared to the structure of the first or second embodiment, so the rectangular prism-shaped projection 314 can stably support the sagging elastic members 104a and 104b. Also, because there is no water flowing in the direction of arrow J2 in Figure 4, the amount of water flowing in the direction of arrow J8 in Figure 6(a) is less, and the amount of water flowing in the directions of arrows J5 and J7 in Figure 6(a) is greater compared to Embodiment 1.

[0076] Furthermore, the following configuration may be added to the rectangular prism-shaped projection 314. Figure 6(b) is a perspective view of a part of a modified vehicle drainage structure according to the present invention, viewed from diagonally above. As shown in Figure 6(b), the vehicle drainage structure includes a rectangular prism-shaped projection 354 having an outer shape similar to the rectangular prism-shaped projection 314 of the vehicle drainage structure 300. This rectangular prism-shaped projection 354 has a connecting portion 355 that connects the upstream side and the downstream side. With this structure, water can 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 section 355 in Figure 6(b) is located on the bottom wall 112 and is formed in a tunnel shape, but the configuration is not limited to this, and it may be positioned higher than the bottom wall 112.

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

[0079] (Fifth example) Figure 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, it has protrusions 514a to 514e that are linear in the flow path width direction M of the flow path 110 in a plan view and are arranged in a staggered pattern. Protrusion 514c is located between protrusion 514a and protrusion 514b in the flow path width direction M. Also, protrusion 514c is located between protrusion 514a and protrusion 514d in the direction K along the flow path 110.

[0080] (Sixth embodiment) Figure 7(c) is a plan view of a vehicle drainage structure 600 according to a sixth embodiment of the present invention. The vehicle drainage structure 600 differs from the first embodiment in that, instead of the protrusions 114a to 114d, it has U-shaped protrusions 614a and 614b that open on the downstream side of the flow path 110 in a plan view. Alternatively, the protrusions may be fan-shaped (or semicircular) so that the downstream side of the flow path 110 widens in a plan view.

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

[0082] (modified version) Alternatively, the protruding portion may be formed in a cylindrical shape. Furthermore, the protruding portion may be molded separately from the flow path 110 and detachably attached to the flow path 110.

[0083] In the above explanation, the direction of the channel width M perpendicular to the channel 110 was given as an example of a direction intersecting the channel 110. However, the direction intersecting the channel 110 also includes directions that intersect the channel 110 at other angles.

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

[0085] In the first embodiment, the description assumed that there were multiple protrusions 114a to 114d serving as guide protrusions, but the configuration is not limited to this, and there may be only one protrusion.

[0086] In the first to seventh embodiments, the protrusions 114a to 114d, projections 112e and 112f, protrusions 214a and 214b, and rectangular prism-shaped protrusions 314 and 354 were described as being integral to the bottom wall 112. However, the configuration is not limited to this, and the components may be constructed separately from the bottom wall 112 and attached to the bottom wall 112 by welding, bonding, screwing, or fitting.

[0087] Preferred embodiments of the present invention have been described above with reference to the attached drawings, but it goes without saying that the present invention is not limited to these examples. It is clear to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention.

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

[0089] This invention can be used in vehicle drainage structures. [Explanation of Symbols]

[0090] 100... Vehicle drainage structure, 102... Evaporator (automotive component), 104a...First elastic member, 104b...Second elastic member, 104M…Center, 110...flow channel, 110a... slide, 112...Bottom wall, 112a...flat area, 112b...slanted part, 112c... step, 112d...Drain port, 112e, 112f...Protrusion (projection), 113a, 113b...side wall, 114a...First projection (guide projection / projection), 114p, ...guide surface, 114b...Second projection (guide projection / projection), 114q... Guide surface, 114c... Third protrusion (guide protrusion / protrusion), 114r... Guide surface, 114d...Fourth projection (guide projection / projection), 114s, ... guide surface, 200... Vehicle drainage structure, 214a...protrusion, 214p... Guide surface, 214q…downstream side, 214r...Straight section, 214s…Top surface, 214b...protrusion, 214v... Guide surface, 214w…downstream side, 214x...Straight surface, 214y...Top surface, 300... Vehicle drainage structure, 314...quadrangular prism-like protrusion, 400... Vehicle drainage structure, 414a, 414b...protrusion, 500... Vehicle drainage structure, 514a, 514b, 514c, 514d, 514e... protrusion, 600... Vehicle drainage structure, 614a, 614b...protrusion, 700... Vehicle drainage structure, 714a, 714b...protrusion

Claims

1. An elastic member attached to the underside of an on-board component mounted on a vehicle, A flow path is provided below the aforementioned vehicle component, spaced apart, to allow liquid dripping from the vehicle component to flow in a predetermined direction. A protruding portion that extends from the flow path toward the elastic member, A vehicle drainage structure characterized by having the following features.

2. The vehicle drainage structure according to claim 1, characterized in that the protruding portion protrudes toward the center in the longitudinal direction of the elastic member.

3. The vehicle drainage structure according to claim 1, characterized in that there are multiple protrusions, and the multiple protrusions are arranged at intervals in a direction intersecting the flow path.

4. The vehicle drainage structure according to claim 1, characterized in that there are multiple protrusions, and the multiple protrusions are arranged at intervals in the direction along the flow path.

5. The vehicle drainage structure according to claim 3 or 4, characterized in that the plurality of protrusions include guide protrusions that are inclined from the outside to the inside in a direction intersecting the flow path as they move downstream of the flow path, thereby guiding the flow of liquid.

6. The aforementioned channel has a bottom wall, The aforementioned bottom wall is An inclined portion on which the guide projection is located, which is sloped so as it goes from one side to the other in a direction intersecting the flow path, A drain port for discharging liquid is located on the other side of the bottom wall from the inclined portion and downstream from the guide projection, The vehicle drainage structure according to claim 5, characterized by having the following features.

7. The aforementioned flow path has a bottom wall and side walls erected on both sides of the bottom wall. The vehicle drainage structure according to claim 3 or 4, characterized in that each of the plurality of protrusions is arranged in the bottom wall at a distance from the side wall.

8. The elastic member comprises one or more parts, and has multiple elastic bulges that expand due to deformation over time, located below the lower surface of the vehicle component at intervals in a direction intersecting the flow path. The vehicle drainage structure according to claim 3, characterized in that there are multiple protruding portions, each protruding toward each of the multiple elastic bulging portions.

9. A drain outlet is provided in the aforementioned flow path. The vehicle drainage structure according to claim 1, characterized in that the protruding portion is arranged around the drain port.

10. The vehicle drainage structure according to claim 9, characterized in that the protruding portion is positioned such that at least the cross-sectional area on the bottom side of the flow path is smaller than the cross-sectional area on the flow path side of the drain outlet, and is spaced apart from the drain outlet.

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