JP4235141B2 - Temporary fixing structure of electrical junction box - Google Patents

Description

  The present invention relates to a temporary fixing structure for an electrical junction box mounted on a vehicle such as an automobile.

  FIG. 5 shows one form of a conventional electrical connector (see, for example, Patent Document 1).

  As shown in FIG. 5A, the electrical connector 90 includes an elastic mounting portion 92. The elastic mounting portion 92 is provided on the insulating housing 91. The circuit board 95 (FIG. 5A) is attached to the insulating housing 91 by attaching the elastic attachment portion 92 to the attachment hole 96 (FIG. 5B) formed in the circuit board 95.

As shown in FIG. 5 (b), the elastic mounting portion 92 is provided with a positioning portion 93. When the circuit board 95 is mounted on the insulating housing 91, the positioning portion 93 moves the position of the through hole 97 (FIG. 5A) of the circuit board 95 so that the through hole 97 is connected to the substrate of the contact 94. It is for positioning with respect to the part.
JP 2001-300637 A (page 1-3, FIG. 1-5)

There is also an electrical connection box mounting structure that can improve the mounting workability and reduce the mounting time so that the connection box body can be mounted on the vehicle body mounting portion without rattling (for example, Patent Documents). 2).
JP-A-8-256419 (page 1-2, FIG. 1)

In addition, there is an attachment structure related to an electrical connection box or the like that can prevent the attached member from dropping from the attachment fixing portion and can significantly improve the productivity (see, for example, Patent Document 3).
Japanese Patent Laid-Open No. 11-241706 (page 1-2, FIG. 1)

  However, in the case of the conventional mounting structure described above, for example, when an electrical connector or an electrical junction box is assembled in a vehicle, if such an instrument is accidentally dropped, the electrical connector or electrical junction box is damaged. There are concerns about the occurrence of problems such as damage to the vehicle and damage to the vehicle.

In view of the above facts, when Keru assembling the electrical connection box such as a vehicle with the hood, thus being damage or electrical connection box assembly mating side of the junction box to the fall of the electric connection box It is an object of the present invention to provide a temporary fixing structure for an electrical junction box in which the problem of scratching the vehicle is eliminated.

In order to achieve the above object, a temporary fixing structure for an electrical junction box according to claim 1 of the present invention includes an electrical junction box in which electrical components including a plurality of relays and a plurality of fuses are incorporated . A temporary fixing portion is formed separately from a regular mounting portion for assembling to the vehicle body, and is a special fixed portion that is not a special fixed portion positioned above the position where the bonnet is closed with the vehicle hood open. The electric connection box is temporarily fixed using the temporary fixing part at the part, wherein the temporary fixing part is attached to a lower cover located below the electric connection box. A substrate portion that is positioned in a space between the plurality of regular mounting portions provided, protrudes downward from the lower cover in a substantially J shape with a predetermined width with the curved portion down, and the substrate portion Approximate to the inner edge of the approximately J shape A curved inner part standing upright, a curved outer part standing substantially perpendicular to the outer edge of the substantially J-shape of the substrate part, the curved inner part and the curved outer part And a large number of ribs erected in a direction substantially orthogonal to the substrate portion connecting the
When the electric junction box is assembled to the vehicle with the bonnet opened, the temporary bonnet is not attached to a part of the vehicle that is not a special fixed portion positioned above the position where the bonnet is closed with the vehicle hood open. The electrical junction box is temporarily fixed by hooking the fixing portion .

With the above structure, when Keru assembling the electrical connection box to the vehicle to open the bonnet, temporarily fixing unit an electrical connection box capable allowed to provisionally fixed to the vehicle without becoming an obstacle to the assembly of the wire harness work because There is provided in electrical connection box, the drop of the electrical connection box, breakage of the electrical connection box, things like scratching the vehicle that is assembled mating side of the junction box, to be eliminated It becomes. Also, with the above configuration, the temporary fixing portion is formed on the lower cover located on the lower side of the electric connection box, so when the electric connection box is attached to the regular position of the vehicle, the temporary fixing portion of the lower cover is It will be located under the invisible electrical junction box. Therefore, the appearance of the electric junction box assembled in the vehicle is not impaired, and the appearance is good. With the above configuration, the electric connection box is a part of the vehicle positioned above the position where the bonnet is closed with the vehicle hood opened without any special fixed part being formed on the vehicle. It will be easily fixed temporarily.

As described above, according to the first aspect of the present invention, when the electrical junction box is assembled to the vehicle, the electrical junction box can be temporarily fixed to the vehicle without obstructing the assembly work of the wire harness. since the temporary fixing unit capable of are provided in the electrical junction box, to a vehicle that is assembled the other side of the damage or electrical junction box of an electrical junction box I by the fall of the electrical junction box, such as scratched Can be solved. Further, the appearance of the electric junction box assembled to the vehicle can be made to look good without being damaged. Then, the electric junction box is easily temporarily fixed to a part of the vehicle located above the position where the bonnet is closed in a state where the hood of the vehicle is opened without forming a special fixed part in the vehicle. be able to.

  Hereinafter, an embodiment of a temporary fixing structure for an electrical junction box according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of a temporary fixing structure of an electrical junction box according to the present invention, FIG. 2 is an exploded perspective view showing a junction box body, and FIG. 3A is a rear view showing a lower cover, FIG. 3B is a bottom view showing the lower cover, FIG. 3C is a side view showing the lower cover, and FIG. 4 is an explanatory view showing a working state when the electrical junction box is assembled to the vehicle.

  The vertical direction of the electrical junction box 1 and the junction box body 3 will be described. As shown in FIGS. 1 and 2, the lower cover 10 is assembled to the lower side of the main cover 20 and the upper one is assembled to the upper side of the main cover 20. The cover 30 is used. Note that the definition of “upper and lower” in this specification is for the sake of convenience for explaining each part.

  As a structure 60 (FIG. 1) to be mounted on a vehicle 80 (FIG. 4) or the like, a panel 60 (FIG. 1) to be mounted on an automobile 80 (FIG. 4) is shown. The junction box body 3 constituting the electrical junction box 1 includes a lower cover 10 (FIGS. 1 and 2) fixed to a body 81 of an automobile 80 (FIG. 4), a main cover 20 mounted on the upper side of the lower cover 10, An upper cover 30 mounted on the upper side of the main cover 20 is provided.

  The lower cover 10, the main cover 20, and the upper cover 30 are all formed using an injection mold based on an injection molding method. The lower cover 10, the main cover 20, and the upper cover 30 constituting the junction box body 3 are molded products formed based on an injection molding method.

  The lower cover 10 is formed to include at least a substantially flat base wall 11 and a peripheral wall 12 extending from the peripheral edge portion 11 e of the base wall 11 along a direction substantially orthogonal to the base wall 11. As shown in FIGS. 2 and 3 (b), a drain hole 11 w is provided in the bottom wall 11 of the lower cover 10. Water droplets in the electrical junction box 1 are discharged to the outside of the electrical junction box 1 through a drain hole 11w provided in the bottom wall 11 of the lower cover 10.

  As shown in FIGS. 1 to 3, a bracket 16 that constitutes a normal attachment portion 16 extends from a side wall 12 a that constitutes the peripheral wall 12 toward a substantially lower side. The mounting portion 16 formed on the lower cover 10 is a bracket 16 that is fixed to the panel 60 (FIG. 1) of the automobile 80 (FIG. 4). The bracket 16 is provided on the one end 12s side of the one side wall 12a. The bracket 16 is integrally formed with the peripheral wall 12 of the lower cover 10.

  As shown in FIG. 1 to FIG. 3, a large number of ribs 16 d that reinforce the substrate portion 16 b of the bracket 16 protrude from the substrate portion 16 b of the bracket 16. Moreover, the hole 16a part of the bracket 16 into which the fasteners 70 such as the bolts 71 are inserted is formed to include a substantially cylindrical rib 16c.

  Moreover, the fastener 70 (FIG. 1) passes the hexagon bolt 71 which connects the electrical connection box 1 and the panel 60 used as the structure 60 (FIG. 1) of the motor vehicle 80 (FIG. 4), and the hexagon bolt 71 to pass through the motor vehicle. A spring washer 72 that prevents loosening of the bolt 71 (FIG. 1) with respect to vibration of 80 (FIG. 4), and a spring washer 72 interposed between the lower cover 10 and the spring washer 72 constituting the electrical junction box 1 was provided. A flat washer 73 for fixing the hexagon bolt 71 having the head 71e to the bracket 16 of the lower cover 10 accurately and reliably, and a panel 60 which is a structure 60 (FIG. 1) of the automobile 80 (FIG. 4) A hexagonal nut 74 equipped with a female threaded portion 74a to be screwed with the male threaded portion 71a of the hexagonal bolt 71 is provided. For example, a fastener in which the spring washer 72 is omitted can be used. Further, a fastener in which the spring washer 72 and the flat washer 73 are omitted can be used. A panel 60 (FIG. 1) of the automobile 80 (FIG. 4) is provided with an insertion hole 60 a corresponding to the male thread portion 71 a of the bolt 71.

  Further, another regular attachment portion 16T (FIGS. 1 to 3) to be attached to the panel of the automobile 80 (FIG. 4) is provided on the other end 12t side of the one side wall 12a constituting the peripheral wall 12 of the lower cover 10. ing. Other regular attachment portions 16T are also integrally formed with the peripheral wall 12 of the lower cover 10.

  Further, a substantially inverted J-shaped temporary fixing portion 15 is provided between the regular attachment portion 16 and another regular attachment portion 16T. The temporary fixing portion 15 extends from the lower surface portion 11 d (FIG. 3) of the base wall 11 of the lower cover 10 toward the lower side. The temporary fixing portion 15 is also integrally formed with the peripheral wall 12 of the lower cover 10.

  Further, as shown in FIG. 2, a large opening 12p through which the wire harness is led out is provided on the other end 12w side of the other side wall 12b constituting the peripheral wall 12. Corresponding to the large opening 12p provided in the peripheral wall 12 of the lower cover 10, the peripheral wall 22 of the main cover 20 is also provided with a large opening (not shown) for leading out the wire harness.

  1 and 2, a small opening 12q through which the sub-wire harness is led out is provided on the one end 12s side of the one side wall 12a constituting the peripheral wall 12 of the lower cover 10. Further, a small opening 22q through which the sub-wire harness is led out is provided in the peripheral wall 22 of the main cover 20. The wire harness 50 shown in FIG. 1 is a sub-wire harness.

  Various electrical components are accommodated in the accommodating portion 24 (FIG. 2) of the main cover 20. For example, a small cassette-shaped first relay block (R / B) (not shown) is attached to the first relay block housing portion 24 </ b> A (FIG. 2) of the main cover 20. A first relay (not shown) is assembled to a first relay block (not shown). In addition, a small cassette-shaped second relay block (R / B) (not shown) is mounted in the second relay block housing portion 24 </ b> B of the main cover 20. A second relay (not shown) is assembled to a second relay block (not shown). In addition, a plurality of fuses (not shown) are mounted in the fuse accommodating portion 24 </ b> C of the main cover 20. In addition, a bus bar (not shown) connected to each part is attached to the bus bar accommodating part 24 </ b> D of the main cover 20.

  An under cover (not shown) provided on the bus bar is housed in the housing portion 14 of the lower cover 10. The under cover is built in the lower cover 10.

  Further, a regular mounting portion 26 (FIGS. 1 and 2), that is, a bracket 26 to be attached to the panel of the automobile 80 (FIG. 4) is provided on the peripheral wall 22 constituting the main cover 20. The bracket 26 is integrally formed with the peripheral wall 22 of the main cover 20. As shown in FIG. 1 and FIG. 2, a large number of ribs 26 d that reinforce the board portion 26 b of the bracket 26 protrude from the board portion 26 b of the bracket 26. Moreover, the hole part 26a part of the bracket 26 in which stoppers, such as a volt | bolt, are penetrated is formed as what is provided with the substantially cylindrical rib 26c. The hole 26a is an elliptical hole 26a (FIGS. 1 and 2) capable of absorbing an attachment error of the electric junction box 1 to each panel of the automobile 80 (FIG. 4).

  The upper cover 30 is formed to include at least an upper base wall 31 and a peripheral wall 32 extending from the peripheral edge portion 31 e of the base wall 31 along a direction substantially orthogonal to the base wall 31. The base wall 31 of the upper cover 30 is a top wall 31 located on the upper side of the junction box body 3.

  As shown in FIG. 2, a plurality of engaging portions 18 are provided on the upper side of the lower cover 10. Corresponding to each engaging portion 18 provided on the lower cover 10, each locking portion 28 is provided on the lower side of the main cover 20. An engaging portion 29 is provided on the upper side of the main cover 20. Corresponding to the engaging portion 29 provided on the upper side of the main cover 20, the upper cover 30 is provided with a locking portion 39 including a flexible arm 39a.

  When the lower cover 10 is assembled to the main cover 20, the convex portion 13 provided on the peripheral wall 12 of the lower cover 10 is aligned with the concave portion 23 provided on the peripheral wall 22 of the main cover 20. Further, the lower cover 10 is securely assembled and fixed to the main cover 20 by engaging the engaging portion 18 of the lower cover 10 with the engaging portion 28 of the main cover 20. Further, the engaging portion 39 of the upper cover 30 is engaged with the engaging portion 29 of the main cover 20, whereby the upper cover 30 is securely assembled and fixed. In this way, the junction box body 3 is assembled and the electrical junction box 1 is assembled (FIG. 1).

  The temporary fixing structure of the electric junction box 1 described in the present specification is used when the electric junction box 1 in which electric parts such as a fuse and a relay are incorporated is assembled to a vehicle 80 such as an automobile 80 (FIG. 4). Configured. As shown in FIGS. 1 and 2, the electrical junction box 1 is provided with a plurality of regular attachment portions 16, 16 </ b> T, and 26. Further, a temporary fixing portion 15 is formed at a different position from each of the regular attachment portions 16, 16T, and 26.

  If such a temporary fixing portion 15 is formed, the electric connection box 1 is temporarily fixed to the vehicle 80 such as the automobile 80 (FIG. 4) without obstructing the assembly work of the wire harness 50 (FIG. 1). Can be made. Since the electrical connection box 1 is provided with the temporary fixing portion 15 capable of temporarily fixing the electrical connection box 1 to the vehicle 80 when the electrical connection box 1 is assembled to the vehicle 80, the electrical connection box 1 It is possible to eliminate the damage of the electrical junction box 1 and the damage to the vehicle 80 that is the other side of the electrical junction box 1 due to the fall of the electrical junction box 1.

  As shown in FIGS. 1 to 3, a large number of ribs 15 d that reinforce the substrate portion 15 b of the substantially inverted J-shaped temporary fixing portion 15 protrude from the substrate portion 15 b of the temporary fixing portion 15. Further, the curved inner portion 15 a and the curved outer portion 15 c of the substantially inverted J-shaped temporary fixing portion 15 are formed as ribs 15 a and 15 c that improve the strength of the temporary fixing portion 15. Reinforcing ribs 15a, 15c, and 15d are extended along a substantially orthogonal direction with respect to the substrate portion 15b of the substantially inverted J-shaped temporary fixing portion 15. The rib 15d is formed as a connecting portion 15d that connects the inner portion 15a and the outer portion 15c. Thereby, the strength of the temporary fixing portion 15 is improved. In addition, in order to improve the strength of the root portion 15e of the temporary fixing portion 15, a gently curved built-up portion 15f is formed on the root portion 15e of the temporary fixing portion 15, and the root portion 15e of the temporary fixing portion 15 is It is formed as a thick one.

  A temporary fixing portion 15 is formed on the lower cover 10 (FIGS. 1 to 3) located on the lower side of the electrical junction box 1. Since the temporary fixing portion 15 is formed on the lower cover 10 located on the lower side of the electric junction box 1, when the electric junction box 1 is attached to a regular position of the vehicle 80 such as the automobile 80 (FIG. 4), The temporary fixing portion 15 of the lower cover 10 (FIGS. 1 to 3) is located below the invisible electrical connection box 1. Accordingly, the appearance of the electrical junction box 1 assembled to the vehicle 80 (FIG. 4) is not impaired. In this way, the appearance of the electrical junction box 1 can be improved.

  As shown in FIGS. 1 to 3A, the temporary fixing portion 15 provided on the lower cover 10 of the electrical junction box 1 is formed in a hook shape. Since the temporary fixing portion 15 provided in the electrical junction box 1 is formed in a hook shape, it can be easily added to the substantially lid-shaped open lid mechanism portion 85 provided in the hood 83 of the vehicle 80 as shown in FIG. The electrical junction box 1 can be temporarily fixed. Therefore, the electric junction box 1 can be temporarily fixed to the vehicle 80 without forming a special fixed portion in the vehicle 80.

  A hook-like temporary fixing portion 15 can be provided in the space 15h shown in FIG. The substantially lid-shaped open lid mechanism portion 85 (FIG. 4) enters the inner portion 15a (FIGS. 1 to 3A) of the temporary fixing portion 15 formed in a hook shape. The temporary fixing portion 15 of the electrical connection box 1 is hooked on the substantially lid-shaped open lid mechanism portion 85 provided on the hood 83 of the automobile 80, and the electrical connection box 1 is suspended from the hood 83 of the automobile 80. Although the thing of a state is shown by FIG. 4, it is not restricted to what was shown in figure, For example, it is electrically connected to each hole (not shown) provided in the inside of the bonnet (83) of a motor vehicle (80). The electric connection box (1) may be suspended from the hood (83) of the automobile (80) by hooking the hook-shaped temporary fixing part (15) provided in the box (1).

  The temporary fixing part 15 equipped in the electric junction box 1 can be suspended from each part of the automobile 80 that can be hooked. As illustrated in FIG. 4, the wiring harness is wired to the body 81 of the automobile 80, and the electrical connection box 1 is assembled efficiently to the body 81 of the automobile 80.

It is a perspective view which shows one Embodiment of the temporary fixing structure of the electrical junction box which concerns on this invention. It is a disassembled perspective view which shows a connection box main body. (A) is a rear view showing the lower cover, (b) is a bottom view showing the lower cover, and (c) is a side view showing the lower cover. It is explanatory drawing which shows the working state when an electrical junction box is assembled | attached to a vehicle. (A) is a front view which shows one form of the conventional electrical connector, (b) is the elements on larger scale which show the circuit board attached to an elastic attachment part.

Explanation of symbols

1 Electrical connection box 10 Lower cover 15 Temporary fixing part 16, 26 Bracket (mounting part)
16T Other regular mounting parts (mounting parts)
80 automobile (vehicle)
85 Open lid mechanism

Claims (1)

A temporary fixing part is formed in an electric connection box in which electric parts including a plurality of relays and a plurality of fuses are incorporated, in addition to a regular mounting part for assembling the electric connection box to the vehicle body, and the vehicle hood is opened. The electric connection box is configured to be hooked to a part of a vehicle that is not a special fixed part positioned above the position where the bonnet is closed in a state using the temporary fixing part. A temporary fixing structure,
The temporary fixing portion is located in a space between the plurality of regular mounting portions provided on the lower cover located on the lower side of the electrical junction box, and is substantially a predetermined width from the lower cover with a curved portion facing downward. A substrate portion projecting downward in a J-shape; a curved inner portion erected substantially perpendicularly to an inner edge of the substantially J-shape of the substrate portion; and the substantially J-shape of the substrate portion A plurality of ribs erected in a direction substantially orthogonal to the substrate portion that connects the curved inner portion and the curved outer portion; And
When the electric junction box is assembled to the vehicle with the bonnet opened, the temporary bonnet is not attached to a part of the vehicle that is not a special fixed portion positioned above the position where the bonnet is closed with the vehicle hood open. A temporary fixing structure for an electric connection box , wherein the electric connection box is temporarily fixed by hooking a fixing portion .

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