JP2016159705A - Vehicle waterproof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle waterproof structure capable of preventing water dropped on the upper surface 13A of an ECU case 13 from the outside air inlet 9 of a cowl garnish 8 from entering a car room 3 via the ventilation hole 5 of a dash panel 4.SOLUTION: A cowl garnish 8 has an outside air inlet 9, and a dash panel 4 has a ventilation hole 5. On the upper surface 13A of an ECU case 13, a regulation member 20 for regulating water dropped from the outside air inlet 9 on the upper surface 13A of the ECU case 13 from flowing to the rear end part of the ECU case 13 is provided. A projection shape 20A in the vehicle longitudinal direction of the regulation member 20 is continuous from one end to the other end in the car width direction of the ECU case 13. The regulation member 20 includes ribs 21 and 22 projected from the upper surface 13A of the ECU case 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waterproof structure for a vehicle, and relates to a waterproof structure for a vehicle in which an in-vehicle member is provided in front of a dash panel and below a cowl garnish.

  In general, a vehicle such as an automobile includes a cowl garnish (also referred to as a cowl) between a rear end portion of an engine hood and a front end portion of a windshield. Conventionally, as this type of vehicle having a cowl garnish, a vehicle is known in which a junction box for connecting or branching wires is arranged in front of the dash panel and below the cowl garnish (see Patent Document 1). ).

  In addition, conventionally, a cowl garnish is provided with an outside air introduction hole and a dash panel with a ventilation hole to introduce air outside the vehicle into the passenger compartment (see Patent Document 2).

JP 2001-187550 A JP 2014-28534 A

  However, as described in Patent Document 1, an in-vehicle member such as a junction box is provided below the cowl garnish. As described in Patent Document 2, air outside the vehicle is introduced into the vehicle compartment from the outside air introduction hole and the ventilation hole. When configured to be introduced, water may enter the vehicle interior from the outside of the vehicle.

  That is, when it rains or is washed, water dropped on the upper surface of the vehicle-mounted member through the opening of the cowl garnish may flow along the upper surface of the vehicle-mounted member to the rear end of the vehicle-mounted member. When water flows to the rear end of the vehicle-mounted member, the water enters the vehicle compartment from the opening of the dash panel.

  The present invention has been made paying attention to the above-described problems, and water dropped from the outside air introduction hole of the cowl garnish to the upper surface of the vehicle-mounted member enters the vehicle compartment through the ventilation hole of the dash panel. It is an object of the present invention to provide a waterproof structure for a vehicle that can prevent this.

  The present invention includes a dash panel that separates an engine room and a vehicle compartment, a cowl garnish provided between a rear end portion of an engine hood and a front end portion of a windshield, the front of the dash panel, and the cowl garnish. An in-vehicle member provided under the vehicle, wherein the cowl garnish has an outside air introduction hole, the dash panel has a ventilation hole, and an upper surface of the in-vehicle member, A restriction member is provided that restricts water dripped from the outside air introduction hole to the upper surface of the vehicle-mounted member from flowing to the rear end of the vehicle-mounted member.

  ADVANTAGE OF THE INVENTION According to this invention, by providing a control member in the upper surface of a vehicle-mounted member, it can control that the water dripped on the upper surface of the vehicle-mounted member from the external air introduction hole of a cowl garnish flows into the rear-end part of a vehicle-mounted member.

  For this reason, since the water which flowed to the rear-end part of the vehicle-mounted member is guided to the side end side or the front end side of the upper surface of the vehicle-mounted member by the restriction member, it does not enter the vehicle compartment through the ventilation hole of the dash panel. Therefore, it is possible to prevent water dropped from the outside air introduction hole of the cowl garnish from entering the vehicle compartment through the ventilation hole of the dash panel.

FIG. 1 is a view showing an embodiment of a vehicle waterproof structure according to the present invention, and is a cross-sectional view of a dash panel of a vehicle. FIG. 2 is a view showing an embodiment of a waterproof structure for a vehicle according to the present invention, and is a perspective view of an upper part of a dash panel and an ECU case as viewed from the left front. FIG. 3 is a view showing an embodiment of the waterproof structure for a vehicle according to the present invention, and is a perspective view of the ECU case and the regulating member as viewed from the left front. FIG. 4 is a diagram showing an embodiment of a vehicle waterproof structure according to the present invention, and is a diagram showing a projected shape of a regulating member in the vehicle front-rear direction. FIG. 5 is a view showing an embodiment of a waterproof structure for a vehicle according to the present invention, and is a view showing an example in which a regulating member is constituted by a rib that curves in a circular arc shape that protrudes forward. FIG. 6 is a view showing an embodiment of a waterproof structure for a vehicle according to the present invention, and is a view showing an example in which a regulating member is constituted by a rib that is curved in an arc shape that protrudes rearward. FIG. 7 is a view showing an embodiment of the waterproof structure for a vehicle according to the present invention, and is a view showing an example in which the restricting member is constituted by linear ribs inclined with respect to the vehicle width direction. FIG. 8 is a diagram illustrating a comparative example in which a restriction member is not provided in the ECU case.

  Hereinafter, an embodiment of a waterproof structure for a vehicle according to the present invention will be described with reference to the drawings. FIGS. 1-7 is a figure which shows the waterproof structure of the vehicle of embodiment which concerns on this invention.

  First, the configuration will be described. In FIG. 1, the vehicle 1 includes a dash panel 4. The dash panel 4 extends in the up-down direction and separates the engine room 2 and the vehicle compartment 3. The engine room 2 is disposed in front of the passenger compartment 3.

  Here, in the present embodiment, the front and rear, left and right, and up and down directions in the figure are arrows so as to coincide with the front and rear direction, the left and right direction, and the up and down direction as viewed from a driver seated in a driver seat (not shown) of the vehicle 1. Is shown.

  An engine (not shown) is stored in the engine room 2. An engine hood 6 is provided in the upper part of the engine room 2, and the engine hood 6 covers the engine room 2 from above.

  A driver's seat (not shown) is provided in the passenger compartment 3. A windshield 7 is provided in front of the upper part of the passenger compartment 3. A cowl garnish 8 is provided between the rear end of the engine hood 6 and the front end of the windshield 7, and the cowl garnish 8 extends in the vehicle width direction.

  A cowl panel 11 is provided on the upper part of the dash panel 4, and the cowl panel 11 extends so as to protrude forward from the dash panel 4.

  A space surrounded by the cowl garnish 8, the upper portion of the dash panel 4, and the cowl panel 11 forms an ECU case housing space 12, and an ECU case 13 as an in-vehicle member is housed in the ECU case housing space 12. Has been.

  The ECU case 13 is formed in a rectangular parallelepiped shape whose front surface is open. An ECU (Electronic Control Unit) 14 is accommodated in the ECU case 13. A connector 15 is provided at the front portion of the ECU 14. The ECU 14 is connected to a sensor and an actuator (not shown) of the vehicle 1 via a signal line (not shown) connected to the connector 15.

  The ECU case 13 is disposed on the vehicle 1 in a posture that leans forward. For this reason, the upper surface 13A of the ECU case 13 is inclined so as to become lower toward the front.

  The ECU case 13 is supported by the front end portion of the cowl panel 11 at the front end portions of the upper surface 13A and the lower surface 13B. The ECU case 13 is arranged at a position in the vicinity of the front of a ventilation hole 5 which will be described later, which is formed in the upper part of the dash panel 4.

  A windshield panel 10 is provided in the vicinity of the upper end portion of the dash panel 4, and the windshield panel 10 closes a gap between the upper end portion of the dash panel 4 and the front end portion of the windshield 7.

  An outside air introduction hole 9 is provided in the cowl garnish 8, and the outside air introduction hole 9 introduces outside air into the ECU case housing space 12 from the outside of the vehicle 1. A ventilation hole 5 is provided in the upper part of the dash panel 4. The ventilation hole 5 introduces air introduced into the ECU case accommodation space 12 into the vehicle compartment 3 for air conditioning.

  As shown in FIGS. 2 and 3, a restriction member 20 is provided on the upper surface 13 </ b> A of the ECU case 13, and the restriction member 20 has water dropped from the outside air introduction hole 9 onto the upper surface 13 </ b> A of the ECU case 13. The flow to the rear end of the ECU case 13 is restricted.

  The restricting member 20 includes a rib protruding upward from the upper surface 13A of the ECU case 13. Specifically, the restricting member 20 includes two ribs 21 and 22. The rib 21 is provided in front of the rib 22. The ribs 21 and 22 extend linearly in the vehicle width direction, and are continuous from one end of the ECU case 13 to the other end in the vehicle width direction.

  Therefore, as shown in FIGS. 3 and 4, the restricting member 20 composed of the ribs 21 and 22 has a projected shape 20 </ b> A in the vehicle longitudinal direction of the restricting member 20 from the one end in the vehicle width direction of the ECU case 13. It is continuous across the edge.

  Here, as shown in FIG. 5, the regulating member 20 may be composed of ribs 31, 32, 33 that are curved in an arc shape that is convex forward. In FIG. 5, the ribs 31, 32, 33 are curved in an arc shape so as to be arranged rearward from the vehicle width direction center of the upper surface 13 </ b> A of the ECU case 13 toward the one side end side and the other side end side. doing.

  The ribs 31, 32, and 33 are continuous from one end portion of the ECU case 13 to the other end portion in the vehicle width direction, similarly to the ribs 21 and 22. Therefore, as shown in FIG. 4, the restricting member 20 composed of the ribs 31, 32, and 33 has a projected shape 20 </ b> A in the vehicle front-rear direction of the restricting member 20 from the one end to the other end in the vehicle width direction of the ECU case 13. It is continuous across the department.

  As shown in FIG. 6, the restricting member 20 may be composed of ribs 41, 42, and 43 that are curved in an arc shape that protrudes rearward. In FIG. 6, the ribs 41, 42, and 43 are curved in an arc shape so as to be disposed forward from the vehicle width direction center of the upper surface 13 </ b> A of the ECU case 13 toward the one side end side and the other side end side. doing.

  Like the ribs 21 and 22, the ribs 42 and 43 are continuous from one end portion of the ECU case 13 to the other end portion in the vehicle width direction. The rib 41 is continuous from the vicinity of one end of the ECU case 13 to the vicinity of the other end in the vehicle width direction.

  Therefore, as shown in FIG. 4, the restricting member 20 composed of the ribs 41, 42, 43 has a projected shape 20 </ b> A in the vehicle front-rear direction of the restricting member 20 from the one end to the other end in the vehicle width direction of the ECU case 13. It is continuous across the department.

  Further, as shown in FIG. 7, the regulating member 20 may be composed of linear ribs 51 and 52 that are inclined with respect to the vehicle width direction. In FIG. 7, the rib 51 is linearly formed on the upper surface 13 </ b> A of the ECU case 13 so as to continue from the vicinity of the center portion in the vehicle width direction of the front end portion of the ECU case 13 to the left end portion. The rib 52 is linearly formed on the upper surface 13A of the ECU case 13 so as to continue from the right end portion of the ECU case 13 to the vicinity of the left end portion of the rear end portion.

  Therefore, as shown in FIG. 4, the restricting member 20 including the ribs 51 and 52 has a projected shape 20 </ b> A of the restricting member 20 in the vehicle front-rear direction from one end to the other end in the vehicle width direction of the ECU case 13. It is continuous across.

  The restricting member 20 of the present embodiment includes ribs 21, 22 or ribs 31, 32, 33 or ribs 41, 42, 43, or ribs 51, 52 protruding upward from the upper surface 13A of the ECU case 13. However, the regulating member 20 may be constituted by a groove. That is, the regulating member 20 may have a top surface similar to the ribs illustrated in FIGS. 3 and 5 to 7, and may be a groove recessed downward from the top surface 13 </ b> A of the ECU case 13.

  Next, the operation will be described. As described above, in the vehicle 1, the cowl garnish 8 has the outside air introduction hole 9, and the dash panel 4 has the ventilation hole 5. For this reason, when it rains or the vehicle 1 is washed, water is dripped onto the upper surface 13A of the ECU case 13 through the outside air introduction hole 9 of the cowl garnish 8.

  In the present embodiment, as shown in FIGS. 3 and 5 to 7, water dripped onto the upper surface 13 </ b> A of the ECU case 13 from the outside air introduction hole 9 onto the upper surface 13 </ b> A of the ECU case 13. A restricting member 20 that restricts the flow of the gas is provided.

  According to the present embodiment, the restriction member 20 is provided on the upper surface 13 </ b> A of the ECU case 13, so that water dropped from the outside air introduction hole 9 of the cowl garnish 8 onto the upper surface 13 </ b> A of the ECU case 13 is rear end of the ECU case 13. The flow to the part can be regulated.

  The water that has flowed to the rear end of the ECU case 13 is guided to the side end side or the front end side of the upper surface 13 </ b> A of the ECU case 13 by the restriction member 20, so that the water flows into the vehicle compartment 3 via the ventilation hole 5 of the dash panel 4. Does not invade.

  Therefore, it is possible to prevent water dripped from the outside air introduction hole 9 of the cowl garnish 8 to the upper surface 13A of the ECU case 13 from entering the vehicle compartment 3 through the ventilation hole 5 of the dash panel 4.

  On the other hand, when the regulating member 20 is not provided on the upper surface 13A of the ECU case 13, as shown in FIG. 8 as a comparative example, the water dripped onto the upper surface 113A of the ECU case 113 is at the rear end of the ECU case 113. It will flow. For this reason, the water that flows to the rear end of the ECU case 113 enters the vehicle compartment via the ventilation hole 105 of the dash panel 104.

  In the present embodiment, as shown in FIGS. 3 to 7, the projection shape 20 </ b> A of the regulating member 20 in the vehicle front-rear direction is continuous from one end to the other end in the vehicle width direction of the ECU case 13. .

  With this configuration, it is not necessary for all of the restricting member 20 to be continuous from one end to the other end in the vehicle width direction of the ECU case 13, and the restricting member 20 can be divided. The degree of freedom in design can be improved.

  In the present embodiment, the restricting member 20 includes a rib that protrudes upward from the upper surface 13A of the ECU case 13.

  With this configuration, the restriction member 20 is a rib protruding upward from the upper surface 13 </ b> A of the ECU case 13, whereby the restriction member 20 can have a simple structure.

  While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

  For example, instead of the ECU case 13 as the in-vehicle member, the ECU 14 main body or a protector of a wire harness (not shown) may be accommodated in the ECU case accommodating space 12 as the in-vehicle member. In this case, it can be set as the structure which provides the control member 20 in the upper surface of the protector of ECU14 main body or a wire harness.

1 ... vehicle, 2 ... engine room, 3 ... vehicle compartment, 4 ... dash panel, 5 ... ventilation hole, 6 ... engine hood, 7 ... windshield, 8. .. Cowl garnish, 9 ... Outside air introduction hole, 13 ... ECU case (vehicle-mounted member), 13A ... Top surface, 20 ... Regulator member, 20A ... Projected shape, 21, 22, 31, 32, 33, 41, 42, 43, 51, 52 ... ribs

Claims (3)

A dash panel separating the engine room and the vehicle compartment;
A cowl garnish provided between the rear end of the engine hood and the front end of the windshield;
A vehicle waterproof structure comprising a vehicle-mounted member provided in front of the dash panel and below the cowl garnish,
The cowl garnish has an outside air introduction hole;
The dash panel has ventilation holes;
A waterproof structure for a vehicle, characterized in that a restriction member is provided on the upper surface of the vehicle-mounted member to restrict water dropped from the outside air introduction hole to the upper surface of the vehicle-mounted member to flow to a rear end portion of the vehicle-mounted member. .   The waterproof structure for a vehicle according to claim 1, wherein a projection shape of the restricting member in the vehicle front-rear direction is continuous from one end to the other end in the vehicle width direction of the in-vehicle member. 3. The waterproof structure for a vehicle according to claim 1, wherein the restriction member includes a rib protruding upward from an upper surface of the in-vehicle member.

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