JP2018158615A - Structure for mounting electronic control device in vehicle body - Google Patents

Abstract

An electronic control device mounting structure that suppresses intrusion of water with a simple configuration. An electronic control device (20) is provided so as to be inclined with respect to a horizontal axis (H) of a vehicle body wall (13) with reference to a state of the electronic control device (20) viewed from the front. The upper surface portion (66) of the electronic control device (20) is covered with a sheet member (30) disposed along the upper surface portion (66). The sheet member (30) is raised from the water channel portion (31) serving as a path of water flowing downward and the lower end portion of the water channel portion (31), and guides water toward the falling point. And a guiding portion (32). [Selection] Figure 2

Description

  The present invention relates to an electronic control device attached to a wall portion of a vehicle body.

  Some devices and devices provided in a vehicle are controlled by an electronic control device. For example, there is a technique disclosed in Patent Document 1 as a conventional technique related to an electronic control device that controls an airbag that protects an occupant.

  In the technique disclosed in Patent Document 1, the electronic control device is attached so as to be placed on a horizontal plane portion inside the instrument panel. In the electronic control device, a case is fixed to a horizontal plane portion, a substrate is fixed to the case, and a cover is covered on the substrate. The substrate has a connector part into which an external connector can be inserted from the side. The cover has an opening overlapping the connector and an eaves provided above the opening.

  When an evaporator for cooling the conditioned air is provided above the electronic control device inside the instrument panel, water droplets generated by condensation of the evaporator may fall on the electronic control device. However, even if a water drop falls, it hits the eaves part, so that the water drop can be prevented from entering the connector part of the board.

JP 2008-130359 A

  By the way, the electronic control device may be attached not only to the inside of the instrument panel but also to the wall portion of the vehicle body. Many vehicle body wall parts are composed of an outer panel exposed to the outside of the vehicle and an inner panel stacked on the vehicle compartment side of the outer panel. The electronic control device is often attached to the inner panel of the wall portion of the vehicle body in order to form an attachment portion and prevent exposure to the outside of the vehicle.

  Rainwater or the like on the ceiling of the vehicle body may flow downward along the inner panel. If the electronic control device of Patent Document 1 is attached to the wall portion of the vehicle body, a part of the mating surface between the case and the cover is located above. Therefore, there is a possibility that water flowing from above enters the mating surface.

  Therefore, for example, it is conceivable to form the case and the cover integrally to eliminate the mating surface. Although the intrusion of water can be suppressed, there is a risk that the manufacturing cost of the electronic control device will increase, and it may be difficult to attach the substrate to the electronic control device. An attachment structure that can prevent water from entering the electronic control device with a simple configuration is desired.

  An object of the present invention is to provide a mounting structure for an electronic control device that prevents water from entering with a simple configuration.

According to the first aspect of the present invention, an electronic control device attached to a vehicle body wall portion includes a case and a cover, and the substrate having a connector provided at one end of the substrate is fixed to the case. In the mounting structure to the vehicle body of the electronic control device that is covered,
The electronic control device is provided to be inclined with respect to a horizontal axis of the vehicle body wall portion with reference to a state of the electronic control device viewed from the front.
The upper surface portion of the electronic control device is covered by a sheet member disposed along the upper surface portion,
The sheet member is composed of a water channel portion serving as a path for water flowing downward, and a guide portion that is raised from a lower end portion of the water channel portion and guides the water toward a falling point. An electronic control device mounting structure for a vehicle body is provided.

  In the invention according to claim 1, the electronic control device is provided so as to be inclined with respect to the horizontal axis of the vehicle body wall with reference to the state of the electronic control device viewed from the front. The upper surface portion of the electronic control device is covered with a sheet member disposed along the upper surface portion. Therefore, even if water falls on the upper surface portion of the electronic control device, the intrusion into the electronic control device is blocked by the sheet member. Furthermore, since the electronic control device is provided with an inclination, water is unlikely to stay on the sheet member. That is, the water that has fallen does not enter the inside of the electronic control device, but easily flows downward. As a result, water can be prevented from entering the electronic control device with a simple structure.

  In addition, the sheet member includes a water channel portion serving as a path for water flowing downward, and a guide portion that is raised from the lower end portion of the water channel portion and guides water toward the falling portion. . Therefore, the water that has flowed through the water channel to the lower end falls at a predetermined location. By separating the falling point from the part where water can enter (such as the gap between the cover and the case, the connector of the board, etc.), the intrusion of water can be further suppressed.

1 is a cross-sectional view of a vehicle equipped with an electronic control device according to an embodiment of the present invention, and an exploded perspective view of the electronic control device. It is the figure explaining the attachment structure of the electronic control apparatus shown by FIG. 1, and the perspective view of a cover member.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, with reference to the vehicle occupant, Le is left, Ri is right, Up is up, Dn is down, Ou is the vehicle exterior side, and Ce is the passenger compartment side.
<Example>

  Please refer to FIG. FIG. 1 shows a main portion of the right rear portion of a vehicle 10 in which the structure according to the present invention is adopted. The vehicle 10 is, for example, an SUV (Sport Utility Vehicle), and a rear luggage compartment 11 is widely secured. A tailgate 12 serving as a door of the rear cargo room 11 is flipped upward.

  The vehicle 10 includes an inner panel 13 (vehicle body wall portion 13), an outer panel 14 that covers the outer surface of the inner panel 13 and is exposed to the outer side of the vehicle, and a resin member 15 that covers the surface of the inner panel 13 on the passenger compartment side. And a roof panel 16 covering the ceiling.

  The inner panel 13 is formed with an inner protruding portion 13a that protrudes toward the vehicle outer side (Ou). The outer panel 14 is formed with an outer protrusion 14a that protrudes toward the passenger compartment side (In). The outer protrusion 14a and the inner protrusion 13a are in contact with each other and welded. The right end portion 16a of the roof panel 16 and the upper end portion 14b of the outer panel 14 are overlapped and welded.

  An electronic control device 20 that controls the tailgate 12 is attached to the inner surface portion 17 of the inner panel 13. The electronic control unit 20 is disposed above the right rear wheel. A sheet member 30 is attached to the upper part of the electronic control unit 20.

  Reference is made to FIG. 1B and FIG. The electronic control unit 20 includes a case 40 and a cover 60, and the case 40 is fixed with a substrate 50 provided with a connector at one end of the substrate 50 and covered with the cover 60. Hereinafter, the case 40, the substrate 50, and the cover 60 will be described in detail.

  The case 40 has a substantially rectangular shape. A front bracket 41, an upper bracket 42, and a rear bracket 43 are formed on the edge of the case 40. Bolt holes 44 are formed in the front bracket 41, the upper bracket 42, and the rear bracket 43, respectively. Four screw holes 45 are formed at four corners of the case 40. On the inner peripheral surfaces of the four screw holes 45, thread grooves are cut.

  A first connector 51 and a second connector 52 into which external connectors can be inserted from below are attached to the substrate 50. Four screw holes 53 are formed at four corners of the substrate 50.

  The cover 60 has a substantially rectangular parallelepiped shape with one surface opened. Four corners of the cover 60 are cut off to form four cutouts 61. Four screw holes 62 are formed in the lower part of the four cutout portions 61. The lower surface portion 63 of the cover 60 includes a first opening portion 64 that overlaps the first connector 51 and a second opening portion 65 that overlaps the second connector 52.

  The assembly of the case 40, the substrate 50, and the cover 60 will be described. The substrate 50 and the cover 60 are overlaid on the case 40, and the screw 21 passes through the screw hole 62 and the screw hole 53, and is fastened to the screw hole 45 having a screw groove. That is, the cover 60 and the substrate 50 are fastened together with the case 40 via the screws 21. Thereby, the electronic control unit 20 is configured.

  Please refer to FIG. Hereinafter, a structure for attaching the electronic control device 20 and the sheet member 30 to the inner panel 13 will be described.

  Reference is made to FIG. The front bracket 41, the rear bracket 43, and the upper bracket 42 are fixed to the inner panel 13 via bolts 22 and 23, respectively. As a result, the electronic control unit 20 is attached to the inner panel 13.

  The electronic control device 20 is inclined with respect to the horizontal axis H of the inner panel 13 with reference to the state of the electronic control device 20 viewed from the front (inclination angle α). In other words, the upper surface portion 66 of the electronic control device 20 is lowered downward toward the front. Note that the electronic control device 20 may be provided so as to be inclined so that the upper surface portion 66 descends downward as it goes rearward.

  Reference is made to FIG. The electronic control unit 20 attached along the inner panel 13 is inclined to the vehicle outer side with respect to the vertical axis V (inclination angle β). In other words, the upper surface portion 66 is lowered downward toward the vehicle outer side. The upper surface portion 66 is covered with the sheet member 30 disposed along the upper surface portion 66. The sheet member 30 is attached to the inner panel 13 via the bolt 23 together with the upper bracket 42.

  Reference is made to FIG. The sheet member 30 includes a water channel portion 31 serving as a path for water flowing downward, a guide portion 32 that is raised from a lower end portion 31a of the water channel portion 31 and guides water toward the falling point P, and a water channel portion. And an attachment portion 33 raised from the approximate center of 31.

  The water channel portion 31 has a strip shape. The guide portion 32 and the attachment portion 33 are both formed integrally with the water channel portion 31 and extend in the normal direction of the water channel portion 31. The guide portion 32 has a rectangular shape and is inclined with respect to the short direction of the water channel portion 31 (inclination angle γ).

  The attachment portion 33 has a step portion 34. The step 34 is formed so as to overlap the step of the upper bracket 42 (see FIG. 2B). A bolt hole 35 is formed in the attachment portion 33.

  Next, the effect of the present invention will be described.

  Please refer to FIG. As shown by the arrow (1), when water enters from a portion where the right end portion 16a of the roof panel 16 and the upper end portion 14b of the outer panel 14 are welded, the water passes through a hole formed in the inner panel 13. Then, it flows between the inner surface portion 17 of the inner panel 13 and the resin member 15 and may drop toward the electronic control device 20.

  Reference is made to FIG. The electronic control device 20 is provided to be inclined with respect to the horizontal axis H of the inner panel 13 with reference to the state when the electronic control device 20 is viewed from the front. The upper surface portion 66 is covered with the sheet member 30 disposed along the upper surface portion 66. Therefore, even if water falls on the upper surface portion 66 of the electronic control device 20, the entry into the electronic control device 20 is blocked by the sheet member 30. Furthermore, since the electronic control unit 20 is provided with an inclination, the water hardly stays on the sheet member 30. In other words, the water that has fallen does not enter the inside of the electronic control device 20, and tends to flow further downward. As a result, water can be prevented from entering the electronic control device 20 with a simple structure.

  Reference is made to FIG. In addition, the sheet member 30 is raised from a water channel portion 31 that is a path of water that flows downward, and a guide portion 32 that is raised from the lower end portion of the water channel portion 31 and guides water toward the falling point. And consist of Therefore, the water flowing along the water channel portion 31 reaches the guide portion 32 and falls after flowing along the guide portion 32.

  Reference is made to FIG. The electronic control unit 20 is inclined to the vehicle outer side with respect to the vertical axis V (inclination angle β). Therefore, as shown by the arrow (2), if there is no guiding part 32, the water flowing through the water channel part 31 falls from the end part of the water channel part 31 as it is. Therefore, water may enter from the mating surface of the cover 60 and the case 40.

  On the other hand, as shown by the arrow (3), if the guiding portion 32 is provided, the path of the flowing water can be directed to the passenger compartment side. By separating the fall point P from the mating surface of the cover 60 and the case 40, water intrusion can be further suppressed.

  In addition, the attachment portion 33 has a step portion 34 formed along the upper bracket 42. Therefore, the sheet member 30 is more reliably attached to the predetermined position.

  In addition, as long as there exists an effect | action and effect of this invention, this invention is not limited to an Example. For example, the electronic control device may be attached not only to a portion extending in the front-rear direction such as a side wall portion but also to a portion extending in the vehicle width direction, for example. Furthermore, the inclination angle γ (see FIG. 2C) of the guide portion 32 is set such that the inclination angle α of the cover 60 with respect to the inner panel 13 (see FIG. 2A) and the inclination angle β (see FIG. 2B). See) and the amount of falling water can be changed as appropriate.

  The electronic control device mounting structure of the present invention is suitable for a passenger car.

DESCRIPTION OF SYMBOLS 10 ... Vehicle 13 ... Inner panel 20 ... Electronic control unit 30 ... Sheet member 31 ... Water channel part 32 ... Guide part 33 ... Mounting part 34 ... Step part 40 ... Case 42 ... Upper bracket 50 ... Substrate 51 ... First connector part 52 ... Second connector portion 60 ··· cover 63 ··· lower surface portion 64 ··· first opening portion 65 ··· second opening portion 66 · · · upper surface portion H · · · horizontal axis

Claims (1)

An electronic control device attached to a vehicle body wall has a case and a cover, and the case is fixed to the substrate on which one end of the substrate is attached. The body of the electronic control device is covered with the cover. In the mounting structure to
The electronic control device is provided to be inclined with respect to a horizontal axis of the vehicle body wall portion with reference to a state of the electronic control device viewed from the front.
The upper surface portion of the electronic control device is covered by a sheet member disposed along the upper surface portion,
The sheet member is composed of a water channel portion serving as a path for water flowing downward, and a guide portion that is raised from a lower end portion of the water channel portion and guides the water toward a falling point. A structure for mounting an electronic control device on a vehicle body characterized by the above.

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