JP2021048711A - Electric connection box and wire harness - Google Patents

Abstract

To provide an electric connection box which can properly secure prevention performance, and to provide a wire harness.SOLUTION: An electric connection box 1 is applied to a wire harness WH and includes: a housing body part 36 formed with a component mounting opening 31c which opens facing in an open direction L1 to expose electronic components 2 when the electric connection box 1 is installed on a vehicle; an eaves part 37 which protrudes from an end part at the upper side as seen in a vertical direction of the component mounting opening 31c along the open direction L1; and a water stop rib part 38 which is formed protruding at an edge part 37A as seen in the open direction L1 of the eaves part 37 and extends along the edge part 37A. The eaves part 37 includes an upper eaves part 37a and side eaves parts 37c, 37d. The water stop rib part 38 includes an upper rib part 38a provided at the edge part 37A of the upper eaves part 37a and side rib parts 38c, 38d which are provided at the edge parts 37A of the side eaves parts 37c, 37d and continuous with the upper rib part 38a.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electrical junction box and a wire harness.

As a conventional electric connection box applied to a wire harness of a vehicle, for example, Patent Document 1 discloses an electric connection box including a storage space portion, an induction space portion, and a housing having a drainage rib. .. The accommodating space is formed inside and accommodates electronic components. The guidance space portion is partitioned horizontally via the partition wall portion of the accommodation space portion, and guides the water that has entered the inside to the lower side in the vertical direction. The drainage rib is provided so as to extend in the guidance space along the guidance direction intersecting the vertical direction, and drains the water guided downward in the vertical direction in the guidance space along the guidance direction. Guide to the mouth side.

Japanese Unexamined Patent Publication No. 2018-186628

By the way, in the electric junction box as described above, for example, electronic components may be mounted so as to be exposed to an opening opened along a substantially horizontal direction, and even in such a case, it is appropriate. A configuration that can be waterproof is desired.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric junction box and a wire harness capable of appropriately ensuring prevention performance.

In order to achieve the above object, the electric junction box according to the present invention houses the electronic parts inside and is installed in the vehicle, and opens in the opening direction intersecting the vertical direction to expose the electronic parts. A housing body having an opening for mounting components, an eaves projecting from the upper end of the opening for mounting components in the vertical direction along the opening direction, and an edge of the eaves in the opening direction. The eaves are provided with a water blocking rib portion that is formed so as to project from the portion and extends along the edge portion, and the eaves portion is an upper eaves portion located on the upper side in the vertical direction of the component mounting opening, and the upper eaves. The water-stopping rib portion includes an upper rib portion provided on the edge portion of the upper eaves portion and a side portion eaves portion extending from the end portion in the opening width direction of the portion toward the lower side in the vertical direction. , The side rib portion provided on the edge portion of the side portion eaves portion and continuous with the upper rib portion is included.

Further, in the electric connection box, the housing main body is located on the upper side in the vertical direction in the state of being installed in the vehicle, and the upper surface of the main body upper wall portion continuous with the upper eaves is along the opening direction. The side rib portion and the side eaves portion provided with the side rib portion, which are formed so as to be inclined downward in the vertical direction toward the side opposite to the component mounting opening side. The edge portion may be formed so as to be installed in the vehicle and inclined toward the lower side in the vertical direction toward the side opposite to the upper rib portion side along the opening direction. it can.

Further, in the electric junction box, the opening direction is inclined with respect to the vertical direction and the horizontal direction when installed in the vehicle, and the tip position of the upper eaves portion in the horizontal direction is the opening for mounting the component. The portion may be positioned so as to project horizontally from the lower end position in the vertical direction.

Further, in the electric connection box, the housing main body is formed so as to be installed on the vehicle and protrude from the main body side wall portion located on the side portion in the opening width direction and continuous with the side eaves portion. At the same time, the housing body is formed so as to be continuous with the side rib portion and inclined downward in the vertical direction toward the side opposite to the side rib portion side along the opening direction. An inclined rib portion extending to an end portion of the portion opposite to the eaves portion side may be provided.

In order to achieve the above object, the wire harness according to the present invention includes a conductive wiring material and an electrical connection box that is electrically connected to the wiring material, and the electrical connection box is inside. In the state where the electronic parts electrically connected to the wiring material are accommodated and installed in the vehicle, a component mounting opening is formed which opens in the opening direction intersecting the vertical direction to expose the electronic parts. The housing body is formed, the eaves projecting from the upper end of the component mounting opening in the vertical direction along the opening direction, and the eaves projecting from the edge of the eaves in the opening direction. It is provided with a waterproof rib portion extending along the edge portion, and the eaves portion is an upper eaves portion located above the vertical direction of the component mounting opening, and an end of the upper eaves portion in the opening width direction. The water-stopping rib portion includes a side eaves portion extending downward from the portion in the vertical direction, and the water-stopping rib portion includes an upper rib portion provided on the edge portion of the upper eaves portion and the side eaves portion. It is characterized by including a side rib portion provided on the edge portion and continuous with the upper rib portion.

The electric junction box and the wire harness according to the present invention have electronic components exposed in a component mounting opening that opens in a housing main body in a state of being installed in a vehicle and that opens in an opening direction that intersects the vertical direction. Can be accommodated. In such a configuration, the electrical junction box has an eaves portion including an upper eaves portion and a side eaves portion, which, for example, drops water droplets from the upper side in the vertical direction toward the component mounting opening. It can be blocked. With this configuration, the electrical junction box can prevent the water droplets from directly entering the component mounting opening. On top of that, the electrical junction box is dropped onto, for example, the upper surface of the housing body in the vertical direction by the water-stopping rib portion including the upper rib portion and the side rib portion, and the upper eaves portion. It is possible to block water droplets that go around the edge of the side eaves and toward the component mounting opening side. With this configuration, the electrical junction box can also prevent the water droplets from wrapping around the edges of the upper eaves and the side eaves and indirectly entering the component mounting opening. As a result, the electric junction box and the wire harness have the effect that the prevention performance can be properly ensured.

FIG. 1 is a perspective view showing a schematic configuration of an electrical junction box according to an embodiment. FIG. 2 is an exploded perspective view showing a schematic configuration of the electrical junction box according to the embodiment. FIG. 3 is a front view showing a schematic configuration of the electrical junction box according to the embodiment. FIG. 4 is a side view showing a schematic configuration of the electrical junction box according to the embodiment. FIG. 5 is the other side view showing the schematic configuration of the electrical junction box according to the embodiment. FIG. 6 is a partial perspective view showing a schematic configuration of a water blocking rib portion of the electrical connection box according to the embodiment. FIG. 7 is a partial perspective view showing a schematic configuration of a water blocking rib portion of the electrical connection box according to the embodiment. FIG. 8 is a partial cross-sectional view including the upper rib portion of the electrical connection box according to the embodiment. FIG. 9 is a partial cross-sectional view including a side rib portion of the electrical connection box according to the embodiment. FIG. 10 is a partial cross-sectional view including an inclined rib portion of the electrical connection box according to the embodiment.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

In the following description, of the first, second, and third directions intersecting each other in each figure, the first direction is referred to as "height direction X" and the second direction is referred to as "depth direction Y". The third direction is called "width direction Z". The height direction X, the depth direction Y, and the width direction Z are substantially orthogonal to each other. Typically, when the electrical junction box is installed in the vehicle and the vehicle is located in the horizontal plane, the height direction X is along the vertical direction, and the depth direction Y and the width direction Z are along the horizontal direction. Typically, the upper side in the height direction X corresponds to the upper side in the vertical direction, and the lower side in the height direction X corresponds to the lower side in the vertical direction. The depth direction Y typically corresponds to the stacking direction of the frame and the lower cover, which will be described later. The width direction Z typically corresponds to the opening width direction of the component mounting opening described later. Unless otherwise specified, each direction used in the following description will be described as a direction in which the parts are assembled to each other and the electric junction box is mounted on the vehicle. It should be noted that FIGS. 1, 2 and 3 described below show the wiring material by omitting it with a two-dot chain line, and the other figures omit the illustration of the wiring material itself. Further, in each figure, each member is shown in a simplified or omitted form as appropriate.

[Embodiment]
The electric connection box 1 according to the present embodiment shown in FIGS. 1, 2 and 3 is mounted on a vehicle such as an automobile and incorporated into a wire harness WH. In the wire harness WH, for example, for connection between each device mounted on a vehicle, a plurality of wiring materials W used for power supply and signal communication are bundled into a collective part, and a plurality of wirings are arranged by a connector or the like. The material W is connected to each device. The wire harness WH includes a conductive wiring material W and an electrical connection box 1 that is electrically connected to the wiring material W. The wiring material W is composed of, for example, a metal rod, an electric wire, a bundle of electric wires, and the like. The metal rod is formed by covering the outside of a conductive rod-shaped member with an insulating covering portion. An electric wire is formed by covering the outside of a conductor portion (core wire) made of a plurality of conductive metal strands with an insulating covering portion. The electric wire bundle is a bundle of the electric wires. In the wire harness WH, a plurality of wiring materials W are bundled and aggregated, and the electrical connection box 1 is electrically connected via a connector or the like provided at the terminal of the bundled wiring materials W. The wire harness WH may also include a grommet, a protector, an exterior material, a fixture, and the like.

The electrical junction box 1 collects electrical components such as connectors, fuses, relays, capacitors, branch parts, and electronic control units, and houses them inside. The electric junction box 1 is installed, for example, in the engine room or the vehicle interior of the vehicle. The electrical connection box 1 of the present embodiment is installed, for example, in the instrument panel in the vehicle interior. The electric junction box 1 is connected between a power source such as a battery and various electronic devices mounted in the vehicle via a wiring material W or the like. The electric junction box 1 distributes the electric power supplied from the power source to various electronic devices in the vehicle. The electrical junction box 1 may also be referred to as a junction box, a fuse box, a relay box, or the like, but in the present embodiment, these are collectively referred to as an electrical junction box.

Specifically, the electrical connection box 1 includes an electronic component 2 and a housing 3 that houses the electronic component 2 inside. The electronic component 2 is an element housed inside the housing 3 and exerts various functions. In the electronic component 2, the wiring material W is electrically connected. The electronic component 2 is, for example, an electronic control unit including a capacitor, a relay, a resistor, a transistor, a fuse, a connector, an IPS (Intelligent Power Switch), and a microcomputer. The housing 3 houses various parts including electronic components 2 and the like inside a hollow shape. In the electrical connection box 1, the electronic component 2 is housed in the housing 3, and the wiring material W is electrically connected to the electronic component 2. Hereinafter, the configuration of the housing 3 will be described in detail with reference to each figure.

Specifically, the housing 3 accommodates the electronic component 2 in the accommodating space 30 formed inside. The housing 3 includes a frame 31 as a housing body and a lower cover 32 as a cover member. The housing 3 has a two-layer split structure in which the frame 31 and the lower cover 32 are divided. The frame 31 and the lower cover 32 are made of an insulating synthetic resin. In the housing 3, the frame 31 and the lower cover 32 are laminated and assembled to each other along a predetermined stacking direction (here, the depth direction Y as an example). With this configuration, the housing 3 is formed into a hollow box shape as a whole by combining the frame 31 and the lower cover 32 as a plurality of members. In the housing 3, the internal space portion partitioned by the frame 31 and the lower cover 32 constitutes the accommodation space portion 30.

The frame 31 is a main member that forms the accommodation space portion 30. The frame 31 is formed in a hollow shape by the wall portion 31a as the main body wall portion. The wall portion 31a is a wall body forming the accommodation space portion 30. The wall portion 31a is formed in a polygonal tubular shape (substantially rectangular tubular shape) and is open on both sides in the depth direction Y. In the frame 31, a storage space portion 30 is formed inside the frame 31 surrounded by the wall portion 31a. The frame 31 is formed by the wall portion 31a in a tubular frame shape having openings 31b and 31c on two surfaces facing the depth direction Y. In other words, the wall portion 31a is a wall body that forms the openings 31b and 31c in the frame 31. In the frame 31, an opening 31b is formed on one side in the depth direction Y, and an opening 31c is formed on the other side in the depth direction Y.

The frame 31 of the present embodiment includes a housing main body portion 36, an eaves portion 37, a water blocking rib portion 38, and an inclined rib portion 39. These configurations will be described in detail later.

The lower cover 32 is a dish-shaped (tray-shaped) member that closes the opening 31c in the depth direction Y of the frame 31. The lower cover 32 is formed in a hollow shape by the wall portion 32a as the cover wall portion and the bottom portion 32b. The wall portion 32a is a wall body forming the accommodation space portion 30. The wall portion 32a is formed in a polygonal tubular shape (substantially rectangular tubular shape). When the lower cover 32 is assembled to the frame 31 as described later, the wall portion 32a fits inside the wall portion 31a of the frame 31. The bottom portion 32b is a bottom body that closes one side of the wall portion 32a in the depth direction Y (the side opposite to the side facing the opening 31c). The wall portion 32a opens on the other side in the depth direction Y (the side facing the opening 31c). The lower cover 32 is formed in a tubular frame shape in which one side in the depth direction Y is closed by the wall portion 32a and the bottom portion 32b and the opening 32c is provided on the other side in the depth direction Y. In other words, the wall portion 32a is a wall body that forms the opening 32c in the lower cover 32.

The housing 3 is positioned so that the opening 31b of the frame 31 and the opening 32c of the lower cover 32 face each other. In the housing 3, the lower cover 32 is assembled to one side of the frame 31 in the depth direction Y in this positional relationship. The housing 3 includes various types of locking mechanisms 33, and the lower cover 32 is locked to the frame 31 via the locking mechanism 33. With this configuration, the housing 3 is formed in a substantially rectangular parallelepiped shape as a whole. Then, in the housing 3, the accommodation space portion 30 is partitioned inside the frame 31 and the lower cover 32.

The accommodation space portion 30 is a space for accommodating the electronic component 2 inside. The accommodation space portion 30 is a space partitioned by a frame 31 and a lower cover 32, and surrounded by the frame 31 and the lower cover 32. That is, one side of the accommodation space portion 30 in the depth direction Y is partitioned by the bottom portion 32b of the lower cover 32, and the other side in the depth direction Y is opened by the opening 31b. Further, the accommodation space portion 30 is partitioned by the wall portion 31a of the frame 31 and the wall portion 32a of the lower cover 32 in the height direction X and the width direction Z.

The electrical junction box 1 is provided with, for example, a block 34 (see FIG. 2) in the accommodation space portion 30. The block 34 is detachably attached to the frame 31 via various types of locking mechanisms. The block 34 is formed of an insulating synthetic resin. A large number of cavities are formed in the block 34. The electronic component 2 is assembled in each cavity. Further, the block 34 is assembled with a circuit body made of a conductive metal material. The circuit body electrically connects each electronic component 2 assembled in each cavity to form a part of an electric circuit, and is, for example, a bus bar or the like. The wiring material W is connected to the block 34. The wiring material W is arranged in the accommodation space 30 through, for example, an insertion port 35 formed in a mating surface between the wall portion 31a of the frame 31 and the wall portion 32a of the lower cover 32. In the block 34, a terminal or the like provided at the terminal of the wiring material W is inserted into each cavity from one side in the depth direction Y and fitted. Further, the block 34 is fitted with the electronic component 2 inserted into each cavity from the other side in the depth direction Y. With this configuration, each electronic component 2 and each wiring material W are electrically connected to each other via a circuit body such as a bus bar in a state of being assembled and mounted on the block 34 to form a required electric circuit. To do.

By the way, the electrical connection box 1 of the present embodiment has a positional relationship such that the opening 31c of the frame 31 opens in the opening direction L1 where it intersects the vertical direction (height direction X) when it is installed in the vehicle. It is installed in the instrument panel inside the vehicle interior.

Here, the opening direction L1 corresponds to the opening direction of the opening 31c in the housing 3, and as shown in FIGS. 4 and 5, along the normal line 31cc perpendicular to the opening end surface 31ca of the opening 31c. Equivalent to the direction. When the electric junction box 1 of the present embodiment is installed in a vehicle, the opening direction L1 intersects the vertical direction (height direction X) and the horizontal direction (depth direction Y) and is inclined with respect to these directions. It is installed in the vehicle in a positional relationship that is in the same direction. Here, as an example, in the electrical connection box 1, the angle α formed by the opening direction L1 and the horizontal direction (depth direction Y) is about several °, and the opening end surface 31ca of the opening 31c is about several ° according to the angle α. It is installed in the vehicle in an upward positional relationship.

Then, as shown in FIGS. 1, 2, and 3, the opening 31c that opens along the opening direction L1 accommodates the electronic component 2 together with the block 34 inside, and the electronic component 2 is moved in the opening direction L1. It functions as a component mounting opening that is exposed along. The housing 3 of the present embodiment does not have a so-called upper cover, and the opening 31c is open when the housing 3 is installed in a vehicle.

Then, in the electrical connection box 1 of the present embodiment, as shown in FIGS. 1 to 5, the frame 31 of the housing 3 includes the housing main body portion 36, the eaves portion 37, and the waterproof rib portion 38. , The structure that can appropriately waterproof the opening 31c formed as described above is realized. Here, the frame 31 further includes an inclined rib portion 39 in addition to the water blocking rib portion 38.

The housing main body 36 is a main portion constituting the frame 31, and is a portion in which the opening 31c is formed. On the other hand, the eaves portion 37 is a portion forming a part of the frame 31, and protrudes from the upper end portion of the opening portion 31c of the housing main body portion 36 in the vertical direction (height direction X) along the opening direction L1. It is an eaves-shaped part. The water stop rib portion 38 is a portion formed so as to project from the edge portion 37A of the eaves portion 37 in the opening direction L1 and extend along the edge portion 37A. The inclined rib portion 39 is a portion of the housing main body portion 36 that is continuously formed with the water blocking rib portion 38.

Specifically, the housing main body 36 is composed of a part of the wall portion 31a constituting the frame 31, and the eaves portion 37 is composed of the other part of the wall portion 31a. As described above, the opening 31c is formed by a substantially rectangular tubular wall portion 31a, and the housing body 36 is a portion of the wall portion 31a where the opening 31c is formed. The housing main body 36 is formed by a portion of the wall 31a located on the opening 31b side from the opening end surface 31ca with respect to the opening direction L1. On the other hand, the eaves portion 37 is formed by a portion of the wall portion 31a that protrudes from the opening end surface 31ca to the side opposite to the opening 31b side with respect to the opening direction L1.

Here, the wall portion 31a forming the opening 31c is more specifically configured to include an upper wall portion 31aa, a lower wall portion 31ab, and a pair of side wall portions 31ac, 31ad. The wall portion 31a is formed in a substantially rectangular tubular shape as described above by integrally forming the upper wall portion 31aa, the lower wall portion 31ab, and the pair of side wall portions 31ac, 31a. The upper wall portion 31aa is a portion of the wall portion 31a located on the upper side in the vertical direction (height direction X) when installed in the vehicle, and constitutes a ceiling portion. The upper wall portion 31aa is formed in a substantially rectangular plate shape in which the plate thickness direction is along the height direction X, and extends along the opening direction L1. The lower wall portion 31ab is a portion of the wall portion 31a located below the vertical direction (height direction X) in a state of being installed in the vehicle, and constitutes a bottom portion. The lower wall portion 31ab is formed in a substantially rectangular plate shape whose thickness direction is along the height direction X, extends along the opening direction L1, and has various shapes such as an insertion port 35, a bracket, and various ribs. Has been done. The pair of side wall portions 31ac and 31ad are portions of the wall portion 31a located on both sides in the width direction Z (corresponding to the opening width direction of the opening 31c) in the state of being installed in the vehicle. The side wall portions 31ac and 31ad are each formed in a substantially rectangular plate shape in which the plate thickness direction is along the width direction Z, extend along the height direction X, and have various locking mechanisms 33, brackets, various ribs, and the like. The shape of is attached.

The portion of the upper wall portion 31aa located on the opening end surface 31ca to the opening 31b side with respect to the opening direction L1 constitutes the main body upper wall portion 36a of the housing main body portion 36, and the opening end surface 31ca to the opening 31b side. The portion protruding to the opposite side constitutes the upper eaves portion 37a of the eaves portion 37. In other words, the upper wall portion 36a of the main body and the upper eaves portion 37a continuously form the upper wall portion 31aa along the opening direction L1. The lower wall portion 31ab constitutes the main body lower wall portion 36b of the housing main body portion 36 as a whole. In other words, the lower wall portion 36b of the main body independently constitutes the lower wall portion 31ab. In the side wall portion 31ac, a portion located on the opening 31b side from the opening end surface 31ca with respect to the opening direction L1 constitutes the main body side wall portion 36c of the housing main body 36, and the opening end surface 31ca to the opening 31b side. The portion protruding to the opposite side constitutes the side eaves portion 37c of the eaves portion 37. In other words, the main body side wall portion 36c and the side eaves portion 37c continuously form the side wall portion 31ac along the opening direction L1. In the side wall portion 31ad, a portion located on the opening 31b side from the opening end surface 31ca with respect to the opening direction L1 constitutes the main body side wall portion 36d of the housing main body 36, and the opening end surface 31ca to the opening 31b side. The portion protruding to the opposite side constitutes the side eaves portion 37d of the eaves portion 37. In other words, the main body side wall portion 36d and the side eaves portion 37d continuously form the side wall portion 31ad along the opening direction L1.

Then, in the frame 31, the housing main body portion 36 is formed by the main body upper wall portion 36a, the main body lower wall portion 36b, the main body side portion wall portion 36c, and the main body side portion wall portion 36d configured as described above, and the upper eaves are formed. The eaves 37 is formed by the portion 37a, the side eaves 37d, and the side eaves 37c.

As shown in FIGS. 4 and 5, the housing main body 36 of the present embodiment has the upper surface 36aa of the upper wall 36a of the main body with respect to the opening 31c side along the opening direction L1 in a state of being installed in the vehicle. It is formed so as to be inclined toward the opposite side, that is, toward the lower side in the vertical direction toward the opening 31b side. Here, the frame 31 is formed so that the entire upper surface 31aa of the upper wall portion 31aa including the upper surface 37aa of the upper eaves portion 37a is inclined downward in the vertical direction toward the opening 31b side along the opening direction L1. Will be done.

Further, as shown in FIGS. 4, 5, 6 and 7, the eaves 37 of the present embodiment includes the above-mentioned upper eaves 37a and a pair of side eaves 37c and 37d. , These are integrally formed to form a substantially U-shaped shape as a whole.

The upper eaves portion 37a is located above the opening portion 31c in the vertical direction (height direction X), and constitutes the upper wall portion 31aa continuously with the main body upper wall portion 36a along the opening direction L1 as described above. .. When the upper eaves portion 37a of the present embodiment is installed in the vehicle, the tip position P1 in the horizontal direction (depth direction Y) is horizontal to the lower end position P2 in the vertical direction (height direction X) of the opening 31c. It is positioned so as to project in the direction (particularly, see FIGS. 4 and 5). Here, the tip position P1 of the upper eaves portion 37a corresponds to the position of the tip position in the horizontal direction of the upper eaves portion 37a when viewed along the width direction Z (see FIGS. 4 and 5). On the other hand, the lower end position P2 of the opening 31c corresponds to the position of the lowermost end in the vertical direction of the opening end surface 31ca of the opening 31c when viewed along the width direction Z (see FIGS. 4 and 5).

The side eaves 37c and 37d extend from both ends of the upper eaves 37a in the width direction Z toward the lower side in the vertical direction (height direction X), respectively, and extend along the opening direction L1 as described above. The side wall portions 31ac and 31ad are continuously formed with the main body side wall portions 36c and 36d. Here, the side eaves 37c and 37d are configured to include a curved portion on the upper eaves 37a side, and are continuous with each end of the upper eaves 37a in the width direction Z via the curved portion. To do.

As shown in FIGS. 6 and 7, the water blocking rib portion 38 of the present embodiment includes an upper rib portion 38a and side rib portions 38c and 38d.

The upper rib portion 38a is a water blocking rib portion 38 provided at the edge portion 37A of the upper eaves portion 37a in the opening direction L1. The upper rib portion 38a is formed so as to project from the edge portion 37A of the upper eaves portion 37a and extends along the edge portion 37A. More specifically, as shown in FIG. 8, the upper rib portion 38a is formed so as to project upward from the edge portion 37A of the upper eaves portion 37a in the height direction X. Then, as shown in FIGS. 6 and 7, the upper rib portion 38a extends linearly along the width direction Z at the edge portion 37A of the upper eaves portion 37a.

The side rib portions 38c and 38d are water-stop rib portions 38 provided at the edge portions 37A of the side eaves portions 37c and 37d in the opening direction L1 and continuous with the upper rib portions 38a, respectively. The side rib portions 38c and 38d are formed so as to project from the edge portions 37A of the side eaves portions 37c and 37d, respectively, and extend along the edge portion 37A. More specifically, as shown in FIG. 9, the side rib portion 38c is formed so as to project outward from the edge portion 37A of the side eaves portion 37c in the width direction Z. Then, as shown in FIG. 6 and the like, the side rib portion 38c is configured to include a curved surface portion on the upper rib portion 38a side. The side rib portion 38c is continuous with one end of the upper rib portion 38a in the width direction Z via the curved surface portion at the edge portion 37A of the side eaves portion 37c, and is continuous with one end in the width direction Z, and in the height direction X and. It extends linearly along the depth direction Y. Similarly, the side rib portion 38d is formed so as to project outward from the edge portion 37A of the side eaves portion 37d in the width direction Z (the cross section is not shown). Then, as shown in FIG. 7 and the like, the side rib portion 38d is configured to include a curved surface portion on the upper rib portion 38a side. The side rib portion 38d is continuous with the other end portion of the upper rib portion 38a in the width direction Z via the curved surface portion at the edge portion 37A of the side eaves portion 37d, and is continuous with the other end portion in the width direction Z, and the height direction X and the side rib portion 38d. It extends linearly along the depth direction Y.

As shown in FIGS. 4 and 6, the side rib portion 38c and the edge portion 37A of the side eaves portion 37c provided with the side rib portion 38c of the present embodiment are in a state of being installed in the vehicle. It is formed so as to be inclined toward the side opposite to the upper rib portion 38a side along the opening direction L1, that is, toward the lower side in the vertical direction toward the opening 31b side.

On the other hand, as shown in FIGS. 5 and 7, the side rib portion 38d is the edge portion 37A of the side eaves portion 37d due to the shape of the side wall portion 31ad and the shape around the side wall portion 31ad. It is provided in part. However, the edge portion 37A itself of the side eaves portion 37d is on the opposite side to the upper rib portion 38a side along the opening direction L1 in the state of being installed in the vehicle, similarly to the edge portion 37A of the side eaves portion 37c. That is, it is formed so as to be inclined downward in the vertical direction toward the opening 31b side. The side rib portion 38d is formed so as to be separated from the edge portion 37A of the side eaves portion 37d on the way and along the opening direction L1. The side rib portion 38d is formed so that the angle of inclination is slightly looser than that of the side rib portion 38c or the like at a portion separated from the edge portion 37A. However, the side rib portions 38c and 38d and the edge portions 37A of the side eaves portions 37c and 37d are installed in the vehicle as described above and are directed toward the opening 31b side along the opening direction L1. It is similar in that it is formed so as to be inclined downward in the vertical direction. The side rib portion 38d is not limited to this, and may be formed so that the entire side rib portion 38d is inclined at an angle equivalent to that of the side rib portion 38c.

The inclined rib portion 39 is formed in the housing main body portion 36 so as to project from the main body side wall portions 36c and 36d, and is continuously formed with the side rib portions 38c and 38d formed as described above. As shown in FIG. 10, the inclined rib portion 39 is formed so as to project outward from the main body side wall portions 36c and 36d in the width direction Z, respectively. Each of the inclined rib portions 39 is formed so as to be inclined toward the side opposite to the side rib portions 38c and 38d side, that is, the opening 31b side along the opening direction L1 toward the lower side in the vertical direction. To. Then, each inclined rib portion 39 extends linearly to an end portion of the housing main body portion 36 opposite to the eaves portion 37 side, that is, an end portion on the opening 31b side.

More specifically, among the inclined rib portions 39, the inclined rib portion 39c formed on the main body side wall portion 36c is an end portion on the side continuous with the side rib portion 38c, as shown in FIGS. Is inclined so as to be continuous with the side rib portion 38c at the same angle as the side rib portion 38c. The inclined rib portion 39c is formed so that the angle of inclination is different on the opening 31b side via the bent portion, and here, the angle of inclination of the portion on the opening 31b side via the bent portion is somewhat. It is formed to be loose and extends to the end on the opening 31b side. On the other hand, among the inclined rib portions 39, the inclined rib portion 39d formed on the main body side wall portion 36d is provided via another structure (for example, a bracket support portion) as shown in FIGS. 5, 7 and the like. It is continuous with the side rib portion 38d and extends to the end on the opening 31b side at a uniform inclination angle. However, the inclined rib portions 39c and 39d are similar in that they are formed so as to be inclined downward in the vertical direction toward the opening 31b side along the opening direction L1.

The electrical connection box 1 and the wire harness WH described above have the electronic component 2 in the opening 31c of the housing body 36 that opens in the housing body 36 in the opening direction L1 that intersects the vertical direction while being installed in the vehicle. Can be exposed and contained. In such a configuration, the electrical connection box 1 is dropped from the upper side in the vertical direction by the eaves portion 37 including the upper eaves portion 37a and the side eaves portions 37c and 37d, for example, and the opening is opened. It is possible to block water droplets heading toward 31c. With this configuration, the electrical junction box 1 can prevent the water droplets from directly entering the opening 31c. For example, examples of water droplets falling onto the electrical junction box 1 from the upper side in the vertical direction include dew condensation water generated on the outer periphery of an air conditioner duct or the like provided directly above the electrical junction box 1 in the instrument panel. .. On top of that, the electrical connection box 1 is formed by, for example, the upper side of the housing body 36 in the vertical direction by the water-stopping ribs 38 including the upper ribs 38a and the side ribs 38c and 38d. It is possible to block water droplets that fall on the surface, wrap around the upper eaves 37a, the side eaves 37c, and the edge 37A of 37d, and head toward the opening 31c. With this configuration, the electrical connection box 1 can also prevent the water droplets from wrapping around the upper eaves portion 37a, the side eaves portions 37c, and the edge portion 37A of the 37d and indirectly entering the opening 31c. As a result, the electrical connection box 1 and the wire harness WH can properly secure the prevention performance.

Further, in the electrical connection box 1 and the wire harness WH described above, in the housing main body 36, the upper surface 36aa of the main body upper wall 36a continuous with the upper eaves 37a is on the opening 31c side along the opening direction L1. Is formed with an inclination toward the lower side in the vertical direction toward the opposite side. With this configuration, as shown by arrows A1 in FIGS. 6 and 7, the electric junction box 1 allows water droplets that have fallen on the upper eaves portion 37a and the main body upper wall portion 36a to pass through the main body upper wall portion 36a and the like. By its own weight, it can be guided to the side opposite to the opening 31c side and drained. Further, in the electrical connection box 1, at least the side rib portion 38c and the edge portion 37A of the side eaves portion 37c are vertically lowered in the direction opposite to the upper rib portion 38a side along the opening direction L1. It is formed so as to be inclined toward the side. With this configuration, the electrical junction box 1 wraps around the edge 37A of the side eaves 37c and 37d to block water droplets that are going toward the opening 31c, and is shown by arrows A2 in FIGS. 6 and 7. As shown, the drainage can be guided to the side opposite to the opening 31c side by its own weight through the side rib portion 38c or the like. As a result, the electrical connection box 1 and the wire harness WH can more appropriately secure the prevention performance.

Further, the electric connection box 1 and the wire harness WH described above are inclined with respect to the vertical direction and the horizontal direction in a state where the opening direction L1 of the opening 31c is installed in the vehicle. The electrical connection box 1 is positioned so that the horizontal tip position P1 of the upper eaves portion 37a projects horizontally from the vertical lower end position P2 of the opening end surface 31ca of the opening 31c. With this configuration, the electric junction box 1 has water droplets from the upper side in the vertical direction toward the opening end surface 31ca of the opening 31c even when the opening direction L1 of the opening 31c is installed in the vehicle in the above positional relationship. Can be reliably blocked by the upper eaves portion 37a. In this respect as well, the electrical connection box 1 and the wire harness WH can more appropriately secure the prevention performance.

Further, the electrical connection box 1 and the wire harness WH described above are provided with inclined rib portions 39 continuous with the side rib portions 38c and 38c at the main body side wall portions 36c and 36d of the housing main body portion 36. With this configuration, the electrical connection box 1 allows water droplets drained from the side rib portions 38c and 38d to be discharged from the side rib portions 38c and the housing main body portion via the inclined rib portions 39 as shown by arrows A3 in FIGS. 6 and 7. It is possible to guide and drain water to the end of the 36 on the side opposite to the eaves 37 side. As a result, the electric connection box 1 and the wire harness WH can more reliably suppress the water droplets from wrapping around to the opening 31c side, so that the prevention performance can be more appropriately ensured also in this respect.

The electric junction box and the wire harness according to the above-described embodiment of the present invention are not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.

In the above description, the opening direction L1 has been described as being inclined with respect to the vertical direction (height direction X) and the horizontal direction (depth direction Y) when installed in the vehicle. Is not limited to this. Further, in the above description, when the housing main body 36 is installed in the vehicle, the upper surface 36aa of the main body upper wall 36a is in the vertical direction along the opening direction L1 toward the side opposite to the opening 31c side. Although it has been described as being formed so as to be inclined downward, the present invention is not limited to this. The housing main body portion 36 may be installed in the vehicle, for example, with the upper surface 36aa of the main body upper wall portion 36a in a positional relationship along the horizontal direction.

In the above description, at least the side rib portion 38c and the edge portion 37A of the side eaves portion 37c face the side opposite to the upper rib portion 38a side along the opening direction L1 in the state of being installed in the vehicle. Although it has been described as being formed so as to be inclined downward in the vertical direction, the present invention is not limited to this. Further, as for the side rib portions 38c and 38d, for example, the side eaves portion 37d may be omitted depending on the overall shape of the frame 31, and at least one of them may be provided.

In the above description, the frame 31 has been described as having an inclined rib portion 39 in addition to the water blocking rib portion 38, but the present invention is not limited to this. The frame 31 may be configured to include the water blocking rib portion 38 and may not include the inclined rib portion 39.

The electric junction box and the wire harness according to the present embodiment may be configured by appropriately combining the components of the embodiments and modifications described above.

1 Electrical junction box 2 Electronic components 3 Housing 30 Storage space 31 Frame 31a, 32a Wall 31aa Upper wall 31aa Upper surface 31ab Lower wall 31ac, 31ad Side wall 31b, 32c Opening 31c Opening (component mounting opening) Department)
31ca Opening end surface 31cc Normal 32 Lower cover 32b Bottom 33 Locking mechanism 34 Block 35 Insertion port 36 Housing body 36a Main body upper wall 36a Top surface 36b Main body lower wall 36c, 36d Main body side wall 37 Eaves 37A Edge 37a Upper eaves 37aa Upper surface 37c, 37d Side eaves 38 Water stop ribs 38a Upper ribs 38c, 38d Side ribs 39, 39c, 39d Inclined ribs L1 Opening direction P1 Tip position P2 Lower end position W WH Wire harness X Height direction Y Depth direction Z Width direction (opening width direction)

Claims (5)

A housing body that accommodates electronic components inside and is installed in a vehicle, and has a component mounting opening that opens toward the opening direction that intersects the vertical direction to expose the electronic components.
An eaves portion protruding along the opening direction from the upper end in the vertical direction of the component mounting opening, and an eaves portion.
It is provided with a water blocking rib portion that is formed so as to project from the edge portion of the eaves portion in the opening direction and extends along the edge portion.
The eaves are an upper eaves located on the upper side in the vertical direction of the component mounting opening, and a side eaves extending from the end of the upper eaves in the opening width direction toward the lower side in the vertical direction. Including part
The water-stopping rib portion includes an upper rib portion provided on the edge portion of the upper eaves portion and a side rib portion provided on the edge portion of the side eaves portion and continuous with the upper rib portion. Features,
Electrical junction box. The housing main body is located on the upper side in the vertical direction in a state of being installed in the vehicle, and the upper surface of the main body upper wall portion continuous with the upper eaves is along the opening direction with respect to the component mounting opening side. Formed with an inclination toward the lower side in the vertical direction toward the opposite side,
The side rib portion and the edge portion of the side eaves provided with the side rib portion are opposite to the upper rib portion side along the opening direction in a state of being installed in the vehicle. Formed with an inclination toward the lower side in the vertical direction toward the side,
The electrical junction box according to claim 1. The opening direction is inclined with respect to the vertical direction and the horizontal direction when installed in the vehicle.
The upper eaves are located so that the tip position in the horizontal direction protrudes in the horizontal direction from the lower end position in the vertical direction of the component mounting opening.
The electrical junction box according to claim 1 or 2. In the housing main body portion, when installed in a vehicle, the housing main body portion is formed so as to project from the main body side wall portion located on the side portion in the opening width direction and continuous with the side eaves portion, and the side ribs. It is formed so as to be continuous with the portion and inclined toward the lower side in the vertical direction toward the side opposite to the side rib portion side along the opening direction, and is formed with the eaves portion side of the housing main body portion. With an inclined rib that extends to the opposite end,
The electrical connection box according to any one of claims 1 to 3. Conductive wiring material and
It is provided with an electrical junction box that is electrically connected to the wiring material.
The electrical junction box
A component mounting opening that accommodates electronic components that are electrically connected to the wiring material and opens in the direction of the opening that intersects the vertical direction to expose the electronic components while being installed in the vehicle. The formed housing body and
An eaves portion protruding along the opening direction from the upper end in the vertical direction of the component mounting opening, and an eaves portion.
It is provided with a water blocking rib portion that is formed so as to project from the edge portion of the eaves portion in the opening direction and extends along the edge portion.
The eaves are an upper eaves located on the upper side in the vertical direction of the component mounting opening, and a side eaves extending from the end of the upper eaves in the opening width direction toward the lower side in the vertical direction. Including part
The water-stopping rib portion includes an upper rib portion provided on the edge portion of the upper eaves portion and a side rib portion provided on the edge portion of the side eaves portion and continuous with the upper rib portion. Features,
Wire harness.

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