JP2011152846A - Flooding preventive structure of electric equipment part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent flooding to an electric equipment part of water going along to a bracket from the other part, by simplifying a structure of the bracket, in a flooding preventive structure of the electric equipment part. <P>SOLUTION: This flooding preventive structure includes the electric equipment part (2) installed in the other part (1) and the bracket (5) installed on this electric equipment part (2) and fixing the electric equipment part (2) to the other part (1). This bracket (5) is provided with a step part (20) for draining water. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water prevention structure for an electrical component, and more particularly to a water prevention structure for an electrical component that prevents the electrical component attached to another component from being wet.

In general, many electric parts are attached to a vehicle such as an automobile, and brackets are often used for attaching the electric parts.
Some brackets are molded integrally with the electrical components, while others are separate. When the electrical component and the bracket are separated, the electrical component has a fitting portion for attaching the bracket.

JP 2004-179280 A

The control case according to Patent Document 1 focuses on a bracket attached to a resin control case, which is a kind of electrical component, and is engaged with a pair of ridges and a pair of guide grooves on the side surface of the control case. Protrusions are provided, and these are used to fix the bracket to the control case.
On the other hand, this bracket is a metal bracket manufactured by stamping from a steel plate. In this case, the bracket has a problem that punched pieces called burrs are formed around it. When a bracket with a burr is inserted into the guide groove of the control case, the bracket cuts the engaging projection, and the generated resin scraps enter between the bracket and the control case, so that the bracket is There is a possibility that a situation in which the control case is not securely fitted may occur.
For this reason, the tip of the tongue piece inserted into the guide groove of the bracket is curved in a direction away from the side surface of the control case, and the bracket is not attached to the control case without scraping the engaging projection. ing.

However, conventionally, in the above-mentioned Patent Document 1, there are various places for attaching the electrical components including the control case, and among them, there are also places where there is a concern that the electrical components are wet. .
There are various causes for the electrical components to get wet, and as one of them, the water that travels through the body panel as another component reaches the electrical components via brackets and wire harnesses attached to the electrical components, and the internal body May be flooded. For example, the bracket has a shape that does not obstruct the flow of water as much as possible and avoids a structure that serves as a water tray.
However, by taking such measures, there is a problem in that the bracket mounting location and the wiring harness wiring attached to the electrical component are restricted, and the bracket structure is complicated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a water-preventing structure for an electrical component that simplifies the structure of the bracket and prevents water from being transmitted from another component to the electrical component.

  The present invention relates to a water-proof structure for an electrical component comprising an electrical component attached to another component and a bracket attached to the electrical component to fix the electrical component to the other component. It is characterized by providing a step portion for performing.

  The water-preventing structure for an electrical component according to the present invention can prevent water from being transmitted to the bracket from other components from the stepped portion of the bracket and prevent the electrical component from being wet.

FIG. 1 is a perspective view of an electrical component to which a bracket is attached. (Example 1) FIG. 2 is a perspective view of the bracket. (Example 1) FIG. 3 is a partial perspective view of the electrical component. (Example 1) FIG. 4 is a partial perspective view when the bracket is attached to the electrical component along arrow IV in FIG. (Example 1) FIG. 5 is a partial perspective view when water flows into the stepped portion of the bracket on the upper side surface. (Example 1) FIG. 6 is a partial perspective view when water flows through the stepped portion of the bracket on the lower side surface along arrow VI in FIG. (Example 1) FIG. 7 is a partial perspective view when water flows into the stepped portion of the bracket along arrow VII in FIG. (Example 1) FIG. 8 is a configuration diagram of a bracket provided with a recess and a drain hole. (Example 2) FIG. 9 is a configuration diagram in which the electrical components are attached to the vehicle body panel at an angle with respect to the horizontal direction. Example 3 FIG. 10 is a perspective view of a bracket provided with a convex structure on the stepped portion. (Example 4) FIG. 11 is a perspective view of a bracket provided with a notch in the stepped portion. (Example 4)

  The present invention achieves the purpose of simplifying the structure of the bracket and preventing the water from being transferred to the electrical components transmitted from the other parts to the bracket by providing a step in the bracket.

1 to 7 show Embodiment 1 of the present invention.
In FIG. 1, 1 is a vehicle panel and 2 is an electrical component of the vehicle. The electrical component 2 includes a main body 4 in a component case 3 made of, for example, a rectangular parallelepiped, and is attached to the vehicle body panel 1 as another component.
A bracket 5 for fixing the electrical component 2 to the vehicle body panel 1 is attached to the electrical component 2. Usually, when the electrical component 2 is attached to the vehicle body panel 1 using the bracket 5, it is often performed using two or more brackets 5. As shown in FIG. 1, when the electrical component 2 is fixed to the vehicle body panel 1 with two brackets 5 and 5 of the upper side surface and the lower side surface, the bracket 5 and 5 Attached to each longitudinal side.
As shown in FIG. 3, the electrical component 2 protrudes outside the electrical component 2 and extends in parallel with each other to guide the insertion of the bracket 5. The pair of guide grooves 6 and 6 and the bracket 5 are set at predetermined positions. It consists of a pair of flanges 7 and 7 to be held in an engagement portion 9 to be described later-a pair of fitting portions 8 and 8 and an engagement portion which is located between the pair of guide grooves 6 and 6 and protrudes outward 9. As shown in FIG. 4, the pair of fitting portions 8 and 8 include a pair of vertical walls 10 and 10.

As shown in FIG. 2, the bracket 5 is a metal bracket having a predetermined width that is press-formed from a general steel plate.
The bracket 5 has an attachment surface member 12 having an attachment hole 11 for attachment to the vehicle body panel 1 and an engagement hole (opening portion) 13 that engages with the attachment surface member 12 and the engagement portion 9. The engaging face material (tongue piece portion) 14 is connected to each other by a connecting portion 15 at one end to form an L shape.
The mounting surface material 12 has a nut 16 attached to the vehicle body panel 1 in the mounting hole 11.
The engaging face material 14 is formed with a convex bead 17 having a predetermined width U extending toward the mounting face material 12.
In this bracket 5, the direction in which the beads 17 are extended toward the mounting surface material 12 of the engaging surface material 14 is defined as a longitudinal direction X, and the longitudinal direction X and a direction orthogonal to the engaging surface material 14 Is the short direction Y, and the plate thickness direction of the engaging face material 14 is the vertical direction Z. The longitudinal direction X, the lateral direction Y, and the vertical direction Z are orthogonal to each other.
On the other hand, a curved portion 18 that is curved toward the mounting surface material 12 is formed at the center portion in the short direction Y at the tip of the engaging surface material 14. Further, the engagement hole 13 for engaging the engagement portion 9 of the electrical component 2 is disposed on the engagement surface material 14 on the mounting surface material 12 side with respect to the curved portion 18. The engaging portion 9 holds the engaging face material 14 of the bracket 5 at a predetermined location.

The bracket 5 is inserted from one end in the extending direction of the pair of guide grooves 6 and 6 of the electrical component 2, and the engagement hole 13 is engaged with the pair of guide grooves 6 and 6 while the engagement hole 13 is engaged with the electrical component 2. 9 is provided. In this case, a part of the engagement hole 13 of the bracket 5 is engaged with the engagement portion 9 of the electrical component 2.
Further, the bead 17 is disposed so as to abut on the mounting surface material 12 in the vertical direction in contact with one end of the engagement hole 13 on the mounting surface material 12 side and having the tip on the mounting surface material 12 side. The engaging face member 14 has an engaging hole 13 that engages with the engaging portion 9 of the electrical component 2 on the distal end side of the bead 17. That is, the bracket 5 has a bead 17 connected to the engagement hole 13 and passing in the longitudinal direction X. The bead 17 has a shape that is convex in a direction away from the electrical component 2 relative to the surface of the engagement surface material 14 of the bracket 5 held by the pair of fitting portions 8 and 8 of the electrical component 2. .

The engaging face material 14 has two lengths in the short direction Y, and the distal end side has a short length Y in the vicinity of the connection portion 15.
The length in the short direction Y is the same length in the short direction Y as that of the general part on the mounting surface 12 side of the engagement hole 13. At the position in the longitudinal direction X, a pair of edge portions 19 and 19 are provided as steps in the short direction Y of the engaging surface portion 14 of the bracket 5.
As shown in FIG. 4, the pair of edge portions 19, 19 are formed on the engagement surface material 14 having the engagement holes 13 of the bracket 5, and the pair of fitting portions 8, 8 are attached to the electrical component 2. The bracket 5 is prevented from being excessively inserted by abutting against the vertical walls 10. Therefore, it is not necessary to separately provide a structure for preventing excessive insertion of the bracket 5 and the pair of fitting portions 8 and 8 can be provided longer, so that the bracket 5 is firmly fixed to the electrical component 2.

The engaging face member 14 is provided with a step portion 20 having a predetermined width W that protrudes in the vertical direction opposite to the bead 17 in the short direction Y along the connection portion 15.
As shown in FIG. 2, the stepped portion 20 has a shape sandwiched between alternate long and short dash lines A and B. An alternate long and short dash line A is a line passing through the position in the longitudinal direction X at which the engagement surface portion 14 starts to change as a convex in the vertical direction opposite to the bead 17. The alternate long and short dash line B is a line that passes through the position in the longitudinal direction X where the extending direction of the mounting surface material 12 starts to change from the substantially vertical direction to the longitudinal direction X.
The step portion 20 is for draining, and is provided along the end of the engagement surface member 14 connected to the attachment surface member 12 and the bracket 5 is attached to the body panel 1 which is another component. Therefore, it exists at a position lower than the peripheral portion of the engaging face material 14 by a distance D.
Thereby, the water transmitted to the bracket 5 from the vehicle body panel 1 can be discharged from the step part 20 without covering the electrical component 2. Further, the step portion 20 has a drainage effect and a rigidity improvement effect of the bracket 5.

Next, the electrical component 2 to which the bracket 5 is attached will be described in more detail.
As shown in FIG. 3, as described above, a pair of fitting portions 8 and 8 are formed on the side surface of the electrical component 2 so as to protrude outward and extend parallel to each other. Further, the pair of fitting portions 8, 8 include a pair of guide grooves 6, 6 that serve as a guide when the bracket 5 is inserted, and a pair of flanges 7, 7 for holding the bracket 5.
The dimension between the pair of guide grooves 6 and 6 is set according to the length in the short direction Y of the bracket 5 to be inserted, and between the pair of flanges 7 and 7 and the side surface of the electrical component 2. The shortest distance is set according to the thickness of the bracket 5. Thereby, the movement to the transversal direction Y and the perpendicular direction Z of the bracket 5 attached to a pair of fitting part 8 * 8 is controlled.
Further, an engaging portion 9 is formed to protrude between the pair of fitting portions 8 and 8 on the outer side. The engaging portion 9 has a columnar shape with a circular bottom shape.
By engaging the engaging hole 13 of the bracket 5 with the engaging portion 9, it is possible to restrict the movement of the bracket 5 in the direction opposite to the insertion direction of the electrical component 2.
Further, as shown in FIG. 4, the pair of edge portions 19 and 19 are brought into contact with the vertical walls 10 and 10 of the pair of fitting portions 8 and 8, so that the bracket 5 can be inserted into the electrical component 2 in the insertion direction. You can place restrictions on movement.
As a result, the movement of the bracket 5 in the longitudinal direction X is restricted, and the bracket 5 can be fixed to the electrical component 2 without the backlash of the bracket 5 occurring.

Next, attachment of the bracket 5 to the electrical component 2 will be described.
The front end of the engaging face member 14 of the bracket 5 is inserted from one end in the extending direction of the pair of fitting portions 8 and 8, and the bracket 5 is attached along the pair of guide grooves 6 and 6.
The bending portion 18 is further inserted over the engaging portion 9.
Thereafter, at the same time when the engagement hole 13 and the engagement portion 9 are engaged, the pair of edge portions 19 and 19 of the bracket 5 are brought into contact with the vertical walls 10 and 10 of the pair of fitting portions 8 and 8, respectively. 2 is completed (see FIG. 1).
At this time, as shown in FIG. 4, the pair of edge portions 19, 19 of the bracket 5 is in contact with the vertical walls 10, 10 of the pair of fitting portions 8, 8.
That is, the pair of fitting portions 8 and 8 have a role of guiding the insertion direction of the bracket 5 and also have a role of preventing excessive insertion of the bracket 5 into the pair of fitting portions 8 and 8.
As a result, it is not necessary to separately prepare a structure for preventing excessive insertion of the bracket 5, and thus the pair of fitting portions 8, 8 can be provided long in the extending direction, and the bracket 5 to the electrical component 2 can be further provided. The fixation of becomes stronger.

Next, consider a case where the electrical component 2 to which the bracket 5 is attached is arranged on the vehicle body panel 1 as another component.
Water flows through the vehicle body panel 1 from the upstream side in the vertical direction, the bracket 5 is attached to the vertical side surface of the electrical component 2, and the bracket 5 attached to the vertical side surface is engaged. The facing material 14 is parallel to the horizontal direction.

In FIG. 5, the periphery of the bracket 5 attached to the upper side surface of the electrical component 2 is shown.
As shown in FIG. 5, when the water transmitted through the vehicle body panel 1 is transmitted to the bracket 5 (indicated by an arrow), the water dripping on the mounting surface material 12 is transmitted to the connecting portion 15 through the mounting surface material 12. , Falls on the stepped portion 20.
The center 20 in the width direction where the bead 17 is provided and the stepped portions 20 at both ends thereof are provided on the lower side with respect to the engaging face material 14 inserted into the electrical component 2, and thus fell to the stepped portion 20. Water falls downward without being transmitted to the electrical component 2 side.
Further, the bead 17 provided in the center of the step portion 20 in the width direction drains the water that has fallen on the step portion 20 to both ends of the step portion 20, so that the water that has been transmitted more effectively to the vehicle body panel 1. Can be drained from the bracket 5.

6 and 7 show the periphery of the bracket 5 attached to the lower side surface of the electrical component 2.
The bracket 5 has the same shape as that attached to the upper side surface of the electrical component 2. The bracket 5 attached to the lower side surface of the electrical component 2 is attached by being inverted vertically with respect to the bracket attached to the upper side surface.
Then, the step part 20 takes a convex shape on the upper side, and the surface on the front end side of the engaging face material 14 is positioned below the step part 20. The bead 17 has a convex shape on the lower side.

That is, in the bracket 5 attached to the upper side surface of the electrical component 2, the bead 17 has an effect of draining in the short side direction Y of the bracket 5, while in the bracket 5 attached to the lower side surface of the electrical component 2, the bead 17 Has the role of collecting water.
Further, since the tip of the bead 17 is open, the water collected in the bead 17 can be drained from the engagement hole 13.
That is, since the bracket 5 has a structure capable of draining regardless of which side of the electrical component 2 is attached to the upper and lower sides, the same bracket 5 can be used on the upper and lower sides of the electrical component 2 and the bracket 5 to be used. Can be shared. Further, the bead 17 has a draining effect and an effect of improving the rigidity of the bracket 5.
As a result, by using the bracket 5, the water transmitted through the vehicle body panel 1 can be discharged from the stepped portion 20 without being flooded into the main body 4 of the electrical component 2. Even if the bracket 5 is mounted upside down, the bead 17 has a role of promoting drainage from the bracket 5.

  In the first embodiment, the bead 17 is also provided in the step portion 20, but a structure in which the bead 17 is not provided in the step portion 20 may be employed. In this case, the step part 20 is comprised by the same plane.

FIG. 8 shows Embodiment 2 of the present invention.
In the following embodiments, portions that perform the same functions as those in the first embodiment will be described with the same reference numerals.
The features of the second embodiment are as follows. That is, a recess 23 is provided in a substantially horizontal plane of the bracket 5, and a water drain hole 24 is provided inside the recess 23.
Thereby, the water that has traveled through the bracket 5 can be easily drained from the drain hole 24.

FIG. 9 shows Embodiment 3 of the present invention.
The features of the third embodiment are as follows. That is, the electrical component 2 is attached obliquely with respect to the horizontal direction.
Thereby, the drainage efficiency of the water transmitted through the bracket 5 can be improved. At this time, it can prevent that the water drained from the step part 20 adheres to the electrical component 2 again by arrange | positioning in the lower end in the up-and-down side surface which attaches the bracket 5. FIG. On the other hand, the electrical component 2 is provided with a plurality of connection connectors 22 for connecting a plurality of wire harnesses 21 to the side surface orthogonal to the side surface on which the pair of fitting portions 8 and 8 and the engagement portion 9 exist. By tilting the surface having the connection connector portion 22 downward, it is possible to prevent water from dripping directly onto the connection connector portion 22 of the electrical component 2. At the same time, even if water drained from the bracket 5 adheres to the wire harness 21 by adopting a wiring method in which the wire harness 21 connected to the electrical component 2 extends below the respective connection connector portions 22, the wire harness 21. It is possible to prevent the water that travels from getting wet to the electrical component 2 and the connector part 22.

10 and 11 show Embodiment 4 of the present invention.
The features of the fourth embodiment are as follows. That is, convex structures 25 and 25 are added to both ends in the short direction Y of the step portion 20 of the bracket 5 as shown in FIG. 10, or the notches 26 and 26 are provided as shown in FIG. Provided.
In this case, the convex structures 25 and 25 or the notches 26 and 26 may be provided on the center side in the short direction Y from both ends of the step portion 20 in the short direction Y. By setting it as such a structure, the water which transmitted the bracket 5 can be dropped to the vehicle lower side from the convex structure 25 * 25 or the notch parts 26 * 26.
Thereby, the water of the step part 20 can be poured using the convex structures 25 and 25 or the notches 26 and 26, and the drainage from the step part 20 can be promoted.

The present invention is not limited to the above-described embodiments, and various application modifications are of course possible.
For example, the bracket can be attached to a necessary part of the electrical component, the mounting direction of the bracket can be changed, or the shape of the bracket can be changed so as not to greatly inhibit the flow of water.

  The water prevention structure for electrical components according to the present invention can be applied to components other than electrical components.

DESCRIPTION OF SYMBOLS 1 Vehicle panel 2 Electrical component 5 Bracket 6 Guide groove 7 Flange 8 Fitting part 9 Engagement part 10 Vertical wall 11 Attachment hole 12 Attachment surface material 13 Engagement hole 14 Engagement surface material 15 Connection part 17 Bead 18 Curved part 19 Edge Part 20 Step part 21 Wire harness 22 Connector part

Claims (5)

  An electrical component wet prevention structure comprising an electrical component attached to another component and a bracket attached to the electrical component to fix the electrical component to the other component, wherein the bracket has a stage for draining. A structure for preventing wetness of electrical parts characterized by providing a portion. The electrical parts protrude outside the electrical parts and extend in parallel to each other to guide the insertion of the brackets-a pair of guide grooves and a pair of flanges for holding the brackets in place- A pair of fitting portions, and an engaging portion that is located between the pair of guide grooves and protrudes outward,
The bracket includes an attachment surface member having an attachment hole for attachment to the other component, and connects the attachment surface material and an engagement surface material having an engagement hole engaged with the engagement portion at one end. The engaging holes are inserted from one end in the extending direction of the pair of guide grooves, and the engaging holes engage with the engaging portions while being engaged with the pair of guide grooves, The portion is provided along the end of the engaging face material connected to the mounting face material, and is present at a position lower than the peripheral portion of the engaging face material in a state where the bracket is attached to the other part. The structure for preventing water breakage of an electrical component according to claim 1.   The bracket has a bead that is connected to the engagement hole and passes in the longitudinal direction, and the bead is farther from the electrical component than the surface of the engagement surface member of the bracket held by the pair of fitting portions. The structure for preventing wetness of an electrical component according to claim 1 or 2, wherein the structure has a shape that is convex in a direction, and a part of the engagement hole is engaged with the engagement portion.   The engagement face material having the engagement hole of the bracket has an edge portion for preventing excessive insertion of the bracket by abutting against the pair of fitting portions when attached to the electrical component. The wet prevention structure for an electrical component according to any one of claims 1 to 3.   5. The wet prevention structure for an electrical component according to claim 1, wherein the step portion of the bracket is provided with a convex structure or a cutout portion.

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