JP7293074B2 - Electrical Junction Box and Wire Harness - Google Patents

Description

The present invention relates to electrical junction boxes and wire harnesses.

2. Description of the Related Art Conventionally, an electrical connection box (also called a junction box, a fuse box, a relay box, etc.) is known, which is mounted on a vehicle such as an automobile and houses electronic components such as wire harnesses, fuses, and relays.

The electrical connection box includes a bottom portion that closes the vertical lower end portion of the rectangular frame portion and is provided in parallel with the facing panel of the vehicle body, an inlet portion that is the shortest distance from the panel, and a passage forming recess. Prepare. The passage forming recess is provided vertically below the inlet portion, and is formed such that a portion of the bottom portion is curved toward the inside of the lower cover, and is formed along the surface of the panel so as to connect the bottom portion and the panel. It is intended to flow the liquid that has entered between them to the outside (see, for example, Patent Literature 1).

Also, the electric junction box has an opening provided at the lower end in the vertical direction of the lower cover and through which an electric wire electrically connected to the electronic component is passed. The lower cover includes a positioning piece that protrudes from the inner edge of the opening on the lower side in the vertical direction to the outside of the box body and positions the electric wire, and a concave shape formed from the inner surface of the positioning piece at the lower end in the vertical direction, and the electric wire positioned by the positioning piece. Drain grooves along the longitudinal direction (see Patent Document 2).

JP 2016-208765 A JP 2016-181984 A

By the way, in the conventional electrical connection box, there is a possibility that water may enter the housing through the gap between the opening and the wire through which the wire is passed from the inside to the outside. Therefore, even if water enters the inside of the electrical connection box, it is necessary to prevent water from entering the electrical connections of electronic components and electric wires.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connection box and a wire harness that can suppress water from entering the housing through an opening for passing electric wires.

In order to achieve the above object, the electrical connection box according to the present invention comprises a housing having a housing space for housing one or more electronic components, and an opening formed in a side wall of the housing. a tubular wiring material lead-out part formed so as to protrude from and leading out one or more wiring members electrically connected to the electronic component to the outside of the housing, the wiring material lead-out part has one or more recesses that are vertically downwardly recessed from the inner peripheral surface in a direction that intersects the projecting direction of the wiring material lead-out part, and the wiring material lead-out part is vertically upwardly recessed an upper lead-out portion to be arranged; a lower lead-out portion in which the recessed portion is formed and which is arranged vertically downward facing the upper lead-out portion; and the wiring member with respect to the upper lead-out portion a fastening member for fixing the lower lead-out portion, wherein the lower lead-out portion is connected to a flexible connecting portion via the concave portion, and the side wall portion via the connecting portion. and is movably formed with the connecting portion as a fulcrum .

Further, in the electrical junction box, the wiring material lead-out portion has a drain hole that communicates the concave portion with the outside.

In the electric connection box, the housing is arranged on the opposite side of the concave portion with the side wall portion interposed therebetween, and the inner wall portion is erected on the inner bottom surface of the housing so as to face the side wall portion. When viewed from above in the vertical direction, the inner wall forms a retention space communicating with the housing space between the opposing side walls, and the housing includes the retention space It has a drain hole that communicates with the outside.

In order to achieve the above object, a wire harness according to the present invention includes a housing having one or more wiring members, a housing space for housing one or more electronic components, and a side wall of the housing. a tubular wiring material lead-out part formed so as to protrude outward from the peripheral edge of the opening, and for leading out one or more wiring materials electrically connected to the electronic component to the outside of the housing; and a junction box, wherein the wiring material lead-out part has one or more recessed parts that are vertically downwardly recessed from the inner peripheral surface in a direction intersecting the projecting direction of the wiring material lead-out part. The wiring material lead-out portion includes an upper lead-out portion arranged on the upper side in the vertical direction, and a lower lead-out portion in which the concave portion is formed and arranged on the lower side in the vertical direction facing the upper lead-out portion. and a fastening member that fixes the wiring member and the lower lead-out portion to the upper lead-out portion, and the lower lead-out portion has a connecting portion having flexibility via the concave portion. and is connected to the side wall portion via the connecting portion, and is movably formed with the connecting portion serving as a fulcrum.

ADVANTAGE OF THE INVENTION The electrical connection box and wire harness which concern on this invention are effective in the ability to suppress the intrusion of the water into an inside from the opening for passing an electric wire in a housing|casing.

FIG. 1 is a perspective view showing a schematic configuration of an electric connection box according to an embodiment. FIG. 2 is an exploded perspective view showing a schematic configuration of the electric connection box according to the embodiment. FIG. 3 is an enlarged perspective view of a main part of the electric connection box according to the embodiment. FIG. 4 is an enlarged view of a main part of the electric connection box according to the embodiment. FIG. 5 is an enlarged plan view of a main part of the electric connection box according to the embodiment. FIG. 6 is a vertical cross-sectional view of the main part of the electric connection box according to the embodiment. FIG. 7 is a vertical cross-sectional view of the main part of the electric connection box according to the embodiment.

EMBODIMENT OF THE INVENTION Below, embodiment of the electric junction box and wire harness which concern on this invention is described in detail with reference to drawings. In addition, this invention is not limited by embodiment shown below. In addition, components in the following embodiments include components that can be easily replaced by those skilled in the art, or components that are substantially the same. Also, the constituent elements in the following embodiments can be omitted, replaced, and changed in various ways without departing from the scope of the invention.

[Embodiment]
An electric connection box and a wire harness according to the present embodiment will be described with reference to FIGS. 1 to 7. FIG. FIG. 1 is a perspective view showing an example of the appearance of an electrical junction box according to this embodiment. FIG. 2 is an exploded perspective view of the electric connection box disassembled into three assemblies. FIG. 3 is an enlarged perspective view of a wiring material lead-out portion in the electrical connection box. FIG. 4 is an arrow view of the wiring material lead-out part viewed from the direction A in FIG. 1 . FIG. 5 is a plan view of the wiring member lead-out portion viewed from above. FIG. 6 is a vertical cross-sectional view of a wiring material lead-out portion when a wiring material having a large diameter size is assembled. FIG. 7 is a vertical cross-sectional view of the wiring material lead-out portion when the wiring material having a small diameter size is assembled. In addition, in FIGS. 4 to 6, the wiring material and the tie band are indicated by two-dot chain lines.

The X direction in each figure is the width direction of the electrical connection box in this embodiment. The Y direction is the depth direction of the electrical connection box in this embodiment, and is a direction orthogonal to the width direction. The Z direction is the vertical direction of the electric junction box in this embodiment, and is a direction perpendicular to the width direction and the depth direction. The Z1 direction is upward and the Z2 direction is downward. In this embodiment, the Z direction is a direction that coincides with the vertical direction. Unless otherwise specified, each direction used in the following description is a direction in which each part is assembled with each other and the electric connection box is mounted on the vehicle.

The electrical connection box 1 in the present embodiment is mounted on a vehicle (not shown) such as an automobile, and receives power supplied from a power source such as a battery through various electronic components and the like to various electronic devices mounted on the vehicle. It distributes to equipment. As shown in FIG. 1, the electrical junction box 1 is incorporated in the wire harness WH, and includes electronic components 100 such as connectors, fuses, relays, branches, electronic control units, etc., which constitute parts for connection processing such as wiring materials. It is to be collected and housed inside.

The wire harness WH connects, for example, one or more wiring members W1 and W2 used for power supply and signal communication to each device mounted on a vehicle at once with a connector or the like (not shown). It is designed to be connected to a device. Note that the wire harness WH may include a grommet, a protector, a fixture, and the like (not shown). The wiring members W1 and W2 are configured to include, for example, conductive conductors (core wires) and insulating coatings that cover the outer sides of the conductors. The core wire may be a twisted wire obtained by twisting a plurality of metal wires, or may be a metal single wire. The wiring materials W1 and W2 in this embodiment have different diameter sizes. It is assumed that the wiring material W1 is larger than the diameter size of the wiring material W2.

The electrical connection box 1 is installed in a place exposed to the external environment, such as an engine room of a vehicle, and connected between a power source such as a battery and various electronic devices mounted in the vehicle. The electrical junction box 1 may also be called a junction box, a fuse box, a relay box, etc. In this embodiment, these are collectively called an electrical junction box. The electric connection box 1 of this embodiment is configured such that the vehicle mounting portion provided on the outside of the housing 2 is brought into contact with a mounting panel or the like (not shown) on the vehicle side, and the vehicle mounting portion is connected by fastening members (not shown) such as bolts. and a mounting panel on the vehicle side, and are installed in the vehicle. The electric connection box 1 in this embodiment is installed in the vehicle in a vertical direction in which the vertical direction coincides with the vertical direction in the installed state of the housing 2 installed in the engine room of the vehicle.

As shown in FIG. 2, the housing 2 is formed in a box shape from a synthetic resin material or the like having insulating properties, and houses one or more electronic components 100 in a housing space 2a formed therein. . Here, at least some of the plurality of electronic components 100 are connected to a wiring member W1 inserted into the housing space 2a through an opening (for example, a lower opening 3b) formed in the housing 2. As shown in FIG. The housing 2 includes a frame 3, an upper cover 4, and a lower cover 5, and has a structure in which a plurality of layers (three layers) are laminated in the order of the lower cover 5, the frame 3, and the upper cover 4 from the lower side. It has a structure divided into two housing members. The housing 2 of the present embodiment has a tubular wiring member lead-out portion 10 .

Frame 3 is part of housing 2 . As shown in FIGS. 1 and 2, the frame 3 has a side wall portion 3d formed in a substantially rectangular shape when viewed from above and below in the installed state. The frame 3 has an accommodation space 3a. The housing space 3 a is part of the housing space 2 a of the housing 2 . In the installed state, the frame 3 has a lower opening 3b at its lower end and an upper opening 3c at its upper end. The frame 3 is formed in a hollow shape in which a lower opening 3b and an upper opening 3c communicate with each other in the vertical direction via a housing space 3a. In the frame 3 according to the present embodiment, the housing space 3a is divided into a plurality of compartments, and the box containing the electronic component 100 or the electronic component 100 is directly inserted into the divided housing space 3a and held. be.

Upper cover 4 is part of housing 2 . The upper cover 4 is positioned above the frame 3 and closes the upper opening 3c of the frame 3 in the installed state. The upper cover 4 is formed in a substantially rectangular outer peripheral shape that is the same (including substantially the same) as the outer peripheral shape of the frame 3 when viewed in the vertical direction. The upper cover 4 has a housing space 4a. The housing space 4 a is part of the housing space 2 a of the housing 2 . Therefore, the accommodation space 2a of the housing 2 is composed of the accommodation space 3a of the frame 3, the accommodation space 4a of the upper cover 4, and the accommodation space 5a of the lower cover 5. As shown in FIG. The upper cover 4 is formed with a lower opening 4b at its lower end. The upper cover 4 is formed like a lid in which the housing space 4a and the lower opening 4b communicate with each other. When the upper cover 4 is assembled to the frame 3, the lower opening 4b faces the upper opening 3c of the frame 3 in the vertical direction. It is locked to the frame 3 by a locking mechanism.

Lower cover 5 is part of housing 2 . The lower cover 5 is positioned below the frame 3 and closes the lower opening 3b of the frame 3 in the installed state. The lower cover 5 has a substantially rectangular outer peripheral shape that is the same (including substantially the same) as the outer peripheral shape of the frame 3 when viewed in the vertical direction. The lower cover 5 has an accommodation space 5a. The housing space 5 a is part of the housing space 2 a of the housing 2 . The lower cover 5 is formed with an upper opening 5b at its upper end. The lower cover 5 is formed in a dish shape (tray shape) in which the housing space 5a and the upper opening 5b communicate with each other. When the lower cover 5 is assembled to the frame 3 , the upper opening 5 b is vertically opposed to the lower opening 3 b of the frame 3 and locked to the frame 3 .

The wiring material lead-out portion 10 is formed so as to protrude outward from the peripheral edge of an opening 3e provided in the side wall portion 3d of the housing 2, and the wiring materials W1 and W2 electrically connected to the electronic component 100 are inserted into the housing. It leads to the outside of the body 2 (Figs. 3 and 4). The wiring material lead-out part 10 has one side communicating with the housing space 2a and the other side communicating with the outside through the insertion hole 11, and has a wire passing space 12 through which parts of the wiring materials W1 and W2 are inserted. Form. The wiring material lead-out part 10 includes an upper lead-out part 21 arranged on the upper side in the vertical direction, a lower lead-out part 22 arranged on the lower side in the vertical direction facing the upper lead-out part 21 , and It has fastening members TB1 and TB2 that fix the wiring material W1 (or W2) and the lower lead-out portion 22 at the ends. Here, the fastening members TB1 and TB2 are so-called binding bands, which are members for bundling and arranging a plurality of wiring materials.

The upper lead-out portion 21 is formed so as to protrude from the lower end of the side wall portion 3d of the frame 3 in the projecting direction of the wiring member lead-out portion 10 (FIGS. 3, 4, 6, and 7). The upper lead-out portion 21 has a plurality of recessed portions 21a and 21b that are recessed vertically upward from the inner peripheral surface along the projecting direction of the wiring material lead-out portion 10 . The concave portion 21a is a portion through which the fastening member TB2 is inserted when the lower cover 5 is attached to the frame 3 . The recessed portion 21a is formed of a bottom surface 41 formed on the upper side in the vertical direction and a pair of inner side surfaces 43 facing each other in the projecting direction with the bottom surface 41 interposed therebetween. The concave portion 21a has an opening that is formed in the bottom surface 41 and communicates the concave portion 21a with the outside, and the fastening member TB2 is led out to the outside through the opening. The concave portion 21b is arranged closer to the frame 3 than the concave portion 21a, and is formed to have a lower vertical depth (height). The concave portion 21b is formed of a bottom surface 45 formed on the upper side in the vertical direction and a pair of inner side surfaces 47 facing each other in the projecting direction with the bottom surface 45 interposed therebetween.

The lower lead-out portion 22 is connected to the side wall portion 3d via a connecting portion 25 having flexibility, and is formed to be movable with the connecting portion 25 as a fulcrum (FIGS. 5 to 7). The side wall portion 3d to which the lower lead-out portion 22 is connected is the side wall of the lower cover 5 in the attached state. The lower lead-out portion 22 has a concave portion 22 a and a drain hole 23 . The recessed portion 22a is formed so as to be recessed downward in the vertical direction from the inner peripheral surface in a direction intersecting the projecting direction of the wiring material lead-out portion 10 . The concave portion 22a is a groove formed in the lower lead-out portion 22 so as to extend in the depth direction intersecting the projecting direction. The concave portion 22a is formed of a bottom surface 42 formed on the lower side in the vertical direction and a pair of inner side surfaces 44 that face each other in the projecting direction with the bottom surface 42 interposed therebetween. The drain hole 23 is a through hole that is formed in the bottom surface 42 and communicates the concave portion 22a with the outside. The drain hole 23 is formed substantially in the center of the bottom surface 42 in the depth direction.

The housing 2 has an inner wall portion 31 arranged on the opposite side of the concave portion 22a with the side wall portion 3d interposed therebetween and erected on the inner bottom surface 5c of the housing 2 so as to face the side wall portion 3d (FIG. 5). ~ Figure 7). The inner bottom surface 5 c is the inner bottom surface of the lower cover 5 . When viewed from above in the vertical direction, the inner wall portion 31 forms a retention space portion 32 communicating with the accommodation space portion 2a between the opposing side wall portion 3d. The inner wall portion 31 is formed to extend in the depth direction orthogonal to the projecting direction of the wiring material lead-out portion 10 . The inner wall portion 31 has one end connected to the side wall portion 3d, and the other end portion constituting a terminal end without being fixed to the side wall portion 3d. The inner wall portion 31 has a bent portion 31a bent in the projecting direction at the other end. When viewed from the upper side in the vertical direction, the bent portion 31a forms a gap between the side wall portion 3d and the retention space portion 32 and the accommodation space portion 5a. The inner bottom surface 13 that contacts the lower side of the retention space 32 in the vertical direction forms the same surface as the inner bottom surface 5c of the lower cover 5 . The housing 2 has a drain hole 33 that communicates the retention space 32 with the outside. The drain hole 33 is formed along the inner wall portion 31 at one end in the depth direction of the inner bottom surface 13 .

Next, the procedure for assembling the electrical connection box 1 and the wire harness WH according to this embodiment will be described. In addition, this embodiment demonstrates the case where the wiring material W1 is assembled|attached.

First, an operator assembles the wiring material W1 to each of the sub-blocks to be accommodated in the accommodation space 3a of the frame 3 to produce a sub-harness. Next, the operator inserts the sub-block together with the sub-harness into the housing space 3a from the lower side of the frame 3, and engages the block mounting member and the like of the frame 3 to fix it. Next, the operator mounts the electronic component 100 on each block from the upper side of the frame 3, and electrically connects the electronic component 100 and the wiring material W1.

Next, the worker positions the lower cover 5 on the lower side of the frame 3 and inserts the lower cover 5 into the frame 3 from the lower side toward the upper side. At this time, the operator arranges the lead-out portion of the wiring member W1 or W2 from the inside of the housing 2 to the outside between the upper lead-out portion 21 and the lower lead-out portion 22 . When the operator continues to insert the lower cover 5 upward into the frame 3 and can no longer move the lower cover 5 upward, assembly of the lower cover 5 onto the frame 3 is completed. At this time, the worker attaches the fastening members TB1 and TB2 to the upper derivation portion 21 and the lower derivation portion 22 with the wiring material W1 or W2 sandwiched therebetween, and the upper derivation portion 21 is fixed by the fastening members TB1 and TB2. The wiring material W1 and the lower lead-out portion 22 are fixed to the .

Next, the operator positions the upper cover 4 on the upper side of the frame 3 and inserts the upper cover 4 into the frame 3 from the upper side toward the lower side. When the operator continues to insert the upper cover 4 downward into the frame 3 and can no longer move the upper cover 4 downward, assembly of the upper cover 4 to the frame 3 is completed. Completed, the assembly of the electric connection box 1 is completed.

Next, the flow of water when the electric connection box 1 according to this embodiment is splashed with water from the outside will be described with reference to FIGS. 6 and 7. FIG.

When high-pressure water splashes on the electric junction box 1 from the bottom to the top, the water collides with the bottom side of the housing 2, that is, the lower cover 5 side. Some of the water that has collided with the boundary between the frame 3 and the lower cover 5 may enter the gap between the wiring material lead-out portion 10 and the wiring material W1 via the insertion hole 11 . The water that enters the gap collides with one of the inner side surfaces 43 of the concave portion 21a, for example, and part of the collided water rebounds, hits the bottom surface 41, and falls in the direction of its own weight, that is, downward in the vertical direction. Also, when the intruded water collides with one of the inner side surfaces 47 of the concave portion 21b, part of the collided water rebounds, hits the bottom surface 45, and falls downward in the vertical direction. The water falling downward in the vertical direction falls downward along the outer peripheral surface of the wiring material W1 and the inner peripheral surface of the wiring material lead-out portion 10 . The fallen water flows into the concave portion 22a or the retention space portion 32 and is temporarily retained or discharged to the outside through the drain hole 23 or 33.

Some of the water that has entered through the gap between the wiring material lead-out portion 10 and the wiring material W1 collides with, for example, one of the inner side surfaces 44 of the recessed portion 22a, and the colliding water falls downward in the vertical direction. As a result, the water temporarily stays in the concave portion 22a or is discharged to the outside through the drain hole 23. Further, when the intruding water collides with the inner wall portion 31 , the collided water falls vertically downward and temporarily stays in the retention space portion 32 or is discharged to the outside through the drain hole 24 .

As described above, the electrical connection box 1 and the wire harness WH according to the present embodiment are formed to protrude outward from the peripheral edge of the opening 3e provided in the side wall 3d of the housing 2, and the wiring member W1 is installed in the housing. A cylindrical wiring material lead-out part 10 that leads out to the outside of the body 2 is provided. It has a recessed portion 22a recessed toward the side. As a result, for example, even if the water that has entered through the gap between the wiring material lead-out portion 10 and the wiring material W1 and has adhered to the wiring material W1 or the like flows downward in the vertical direction due to its own weight, the accommodation space portion It accumulates in the concave portion 22a without moving to 2a. As a result, it is possible to prevent water from entering the housing 2 through the opening 3e through which the wiring material W1 is passed.

In addition, in the electric connection box 1 and the wire harness WH according to the present embodiment, the wiring material lead-out portion 10 has the drain hole 23 that communicates the concave portion 22a with the outside. As a result, the water accumulated in the concave portion 22a can be easily discharged to the outside.

In addition, in the electric connection box 1 and the wire harness WH according to the present embodiment, the housing 2 is arranged on the opposite side of the concave portion 22a with the side wall portion 3d interposed therebetween, and the housing 2 is arranged so as to face the side wall portion 3d. has an inner wall portion 31 erected on the inner bottom surface 5c. As a result, for example, the inner wall portion 31 can dam water entering the housing 2 along the outer peripheral surface of the wiring material W<b>1 and the inner peripheral surface of the wiring material lead-out portion 10 . In addition, the inner wall portion 31 can prevent the water remaining in the recessed portion 22 a from entering the housing 2 over the connecting portion 25 . In addition, when viewed from above in the vertical direction, the inner wall portion 31 forms a retention space portion 32 communicating with the accommodation space portion 2a between the opposing side wall portion 3d. As a result, the water that has entered through the gap between the wiring material lead-out portion 10 and the wiring material W1 and has flowed downward under its own weight can be retained in the retention space portion 32 . In addition, it is possible to retain the water dammed up by the inner wall portion 31 in the retention space portion 32 . Further, since the housing 2 has the drain hole 33 that communicates the retention space 32 with the outside, the water accumulated in the retention space 32 can be easily discharged to the outside.

In addition, in the electrical connection box 1 and the wire harness WH according to the present embodiment, the wiring material lead-out portion 10 includes an upper lead-out portion 21 and a lower lead-out portion disposed vertically below the upper lead-out portion 21. 22 , and fastening members TB<b>1 and TB<b>2 for fixing the wiring member W<b>1 and the lower lead-out portion 22 to the upper lead-out portion 21 . The lower lead-out portion 22 is connected to the side wall portion 3d via a connecting portion 25 having flexibility, and is formed to be movable with the connecting portion 25 as a fulcrum. As a result, the movably formed lower lead-out portion 22 follows the large-diameter cable W1 and the small-diameter cable W2 to move the cable lead-out part 10 as shown in FIG. When viewed from the A direction, normally there is a gap between the wiring material W1 and the wiring material lead-out portion 10, but the gap can be reduced. As a result, intrusion of water can be further suppressed. That is, since the lower lead-out portion 22 is formed to be vertically movable, the gap can be reduced regardless of the diameter size of the wiring members W1 and W2.

In the above-described embodiment, the concave portion 22a is provided at one location with respect to the lower lead-out portion 22 of the wiring member lead-out portion 10, but is not limited to this. It may be provided at a plurality of locations along the projecting direction. In the above embodiment, the case where water enters the housing 2 has been described, but the present invention is not limited to this, and liquids other than water may be used.

Reference Signs List 1 electric connection box 2 housing 2a, 3a, 4a, 5a housing space 3 frames 3c, 5b upper opening 3b, 4b lower opening 3d side wall 3e opening 4 upper cover 5 lower cover 5c, 13 inner bottom surface 10 Wiring material lead-out portion 11 Insertion hole 12 Wire passage space 21 Upper lead-out portion 22 Lower lead-out portion 22a Concave portions 23, 33 Drain hole 25 Connecting portion 31 Inner wall portion 32 Retention space portion 41
100 Electronic component W1, W2 Wiring material WH Wire harness TB1, TB2 Fastening member

Claims (4)

a housing having a housing space for housing one or more electronic components;
Cylindrical cylindrical member protruding outward from a peripheral edge of an opening provided in a side wall of the housing and leading out one or more wiring members electrically connected to the electronic component to the outside of the housing. and a wiring material lead-out part,
The wiring material lead-out part is
having one or more concave portions that are concave downward in the vertical direction from the inner peripheral surface in a direction that intersects the projecting direction of the wiring material lead-out portion;
The wiring material lead-out part is
an upper lead-out portion arranged on the upper side in the vertical direction;
a lower lead-out portion in which the recessed portion is formed and which is disposed on the lower side in the vertical direction so as to face the upper lead-out portion;
a fastening member that fixes the wiring member and the lower lead-out portion to the upper lead-out portion;
The lower lead-out portion is
It is connected to a connecting portion having flexibility via the concave portion, is connected to the side wall portion via the connecting portion, and is movably formed with the connecting portion as a fulcrum.
An electrical connection box characterized by: The wiring material lead-out part is
2. The electric connection box according to claim 1, further comprising a drain hole that communicates the concave portion with the outside. The housing is
an inner wall portion disposed on the opposite side of the concave portion with the side wall portion therebetween and erected on the inner bottom surface of the housing so as to face the side wall portion;
The inner wall portion is
When viewed from above in the vertical direction, a retention space portion communicating with the accommodation space portion is formed between the opposing side wall portions,
The housing is
The electric connection box according to claim 1 or 2, further comprising a drain hole that communicates the retention space with the outside. one or more wiring members;
A housing having a housing space for housing one or more electronic components, and one protruding outwardly from a peripheral edge of an opening provided in a side wall of the housing and electrically connected to the electronic components. an electric connection box including a cylindrical wiring material lead-out part for leading the above wiring material to the outside of the housing,
The wiring material lead-out part is
having one or more concave portions that are concave downward in the vertical direction from the inner peripheral surface in a direction that intersects the projecting direction of the wiring material lead -out portion;
The wiring material lead-out part is
an upper lead-out portion arranged on the upper side in the vertical direction;
a lower lead-out portion in which the recessed portion is formed and which is disposed on the lower side in the vertical direction so as to face the upper lead-out portion;
a fastening member that fixes the wiring member and the lower lead-out portion to the upper lead-out portion;
The lower lead-out portion is
It is connected to a connecting portion having flexibility via the concave portion, is connected to the side wall portion via the connecting portion, and is movably formed with the connecting portion as a fulcrum.
A wire harness characterized by:

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