JP2018186628A - Electrical connection box and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connection box and a wiring harness which can properly process water entering an inside of a housing.SOLUTION: An electrical connection box 1 applied to a wiring harness WH has a housing 3 including: a housing space section 35 which is formed inside for accommodating electronic components; an induction space section 38 which is partitioned in a horizontal direction side of the housing space section 35 via a partition wall section 31b and guides water entering inside into a lower side in a vertical direction; and a drainage rib 31d which is extending in a guide direction A intersecting with the vertical direction in the guide space portion 38 for guiding the water guided vertically downward in the guide space portion 38 along the guide direction A to the side of drain water ports 31e, 31f of the guide space portion 38, in which in the partition wall section 31b, a vertically lower end portion 31j is positioned along a drainage rib 31d.SELECTED DRAWING: Figure 4

Description

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

  As a conventional electrical junction box applied to a wire harness mounted on a vehicle or the like, for example, Patent Literature 1 discloses an electrical junction box in which a side wall of a container body is formed by a double wall of an outer wall and an inner wall. Has been. This electrical junction box is provided with horizontal ribs that partition between the outer wall and the inner wall, and a plurality of upper ribs extending in the height direction are provided above the horizontal ribs at a predetermined interval. A plurality of lower ribs extending in the height direction are provided at a lower portion of the lower portion with a predetermined interval. The electrical junction box is provided with a communication hole that connects the upper space and the lower space between the upper ribs of the horizontal rib, thereby preventing deformation of the outer wall and suppressing water from entering the container body. doing.

JP 2002-369335 A

  By the way, the electrical junction box described in Patent Document 1 described above has room for further improvement regarding, for example, the treatment of water that has entered the double wall.

  This invention is made | formed in view of said situation, Comprising: It aims at providing the electrical junction box and wire harness which can process appropriately the water which infiltrated the inside of a housing | casing.

  In order to achieve the above object, an electrical junction box according to the present invention is formed in a housing space portion that is formed inside and accommodates electronic components, and is partitioned inside the housing space portion in the horizontal direction through a partition wall portion. A guide space part that guides water that has entered the interior in the vertical direction; and a guide space part that extends in the guide space part along a guide direction that intersects the vertical direction. A housing having a drainage rib for guiding water guided to the drainage port side of the guide space along the guide direction, and the partition wall portion has an end on the lower side in the vertical direction. It is located along.

  In the electrical junction box, the casing includes a vertical rib that extends in the guide space portion along the vertical direction and extends from the drainage rib to the drainage port. The portion is a region on the lower side in the vertical direction of the drainage rib and on the lateral side of the vertical rib, and a region surrounded by the drainage rib and the vertical rib constitutes a cutout portion. Can do.

  Moreover, in the said electrical junction box, the said drainage rib shall be provided bypassing a to-be-watered part.

  In order to achieve the above object, a wire harness according to the present invention includes a conductive wiring material and an electric connection box electrically connected to the wiring material, and the electric connection box is provided inside. An accommodation space portion that accommodates an electronic component that is formed and electrically connected to the routing material, and in which water that has entered the interior and is partitioned through a partition wall portion on the horizontal side of the accommodation space portion in the vertical direction A guidance space part that guides downward, and water that is provided in the guidance space part so as to extend along a guidance direction that intersects the vertical direction, and that guides water guided downward in the vertical direction in the guidance space part. A housing having a drainage rib that guides the drainage space side of the guide space portion along the direction, and the partition wall portion has an end on the lower side in the vertical direction located along the drainage rib. And

  The electrical junction box and the wire harness according to the present invention are the water that has entered the inside of the housing by the guide space portion that is partitioned through the partition wall portion in the horizontal direction of the housing space portion that houses the electronic component. Is guided downward in the vertical direction and processed. At this time, the electrical junction box and the wire harness are configured such that the water guided to the lower side in the vertical direction in the guide space portion by the drainage rib provided in the guide space portion is guided along the guide direction intersecting the vertical direction. Can be guided to the drain outlet side. With this configuration, the electrical junction box and the wire harness can prevent the water guided in the induction space from adhering to the electronic components in the housing space and being wetted by the electronic components. Can be drained from the drain outlet to the outside of the induction space. In addition, in the electrical junction box and the wire harness, the end portion on the lower side in the vertical direction of the partition wall portion that partitions the guide space portion is positioned along the drainage rib. With this configuration, since the electrical junction box and the wire harness can suppress the depth along the vertical direction of the guide space portion, the partition wall portion that partitions the guide space portion can be easily formed. it can. As a result, the electrical junction box and the wire harness have an effect that the water that has entered the inside of the housing can be appropriately treated.

FIG. 1 is an exploded perspective view illustrating a schematic configuration of an electrical junction box according to the embodiment. FIG. 2 is a cross-sectional perspective view illustrating a schematic configuration of the electrical junction box according to the embodiment. FIG. 3 is a partial cross-sectional perspective view showing a schematic configuration of the electrical junction box according to the embodiment. FIG. 4 is a partial cross-sectional perspective view showing a schematic configuration of the electrical junction box according to the embodiment.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements 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 FIG. 1, a part of the electronic component and the wiring material is omitted by a two-dot chain line, and the electronic component and the wiring material are not illustrated in other drawings. In the following description, among the first direction, the second direction, and the third direction intersecting with each other, the first direction is referred to as the “height direction X”, and the second direction is referred to as the “first width direction Y”. The third direction is referred to as “second width direction Z”. Here, the height direction X, the first width direction Y, and the second width direction Z are orthogonal to each other. Typically, in a state where the electrical junction box is mounted on a vehicle and the vehicle is positioned on a horizontal plane, the height direction X is along the vertical direction, and the first width direction Y and the second width direction Z are in the horizontal direction. Along. In the following description, in the height direction X, a side on which a later-described upper cover is provided may be referred to as an upper side, and a side on which a later-described lower cover is provided may be referred to as a lower side. Each direction used in the following description will be described as a direction in a state where the respective parts are assembled with each other and the electric junction box is mounted on the vehicle unless otherwise specified.

[Embodiment]
The electrical junction box 1 according to the present embodiment shown in FIGS. 1 and 2 is mounted on a vehicle such as an automobile and is incorporated in a wire harness WH. The wire harness WH is, for example, a bundle of a plurality of wiring materials W used for power supply and signal communication for connection between devices mounted on a vehicle, and a plurality of wirings with 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 routing material W is configured by, for example, a metal rod, an electric wire, an electric wire bundle, or the like. The metal rod is obtained by covering the outside of a conductive rod-shaped member with an insulating covering portion. The electric wire is obtained by covering the outside of a conductor portion (core wire) made of a plurality of conductive metal wires with an insulating covering portion. The electric wire bundle is a bundle of the electric wires. The wire harness WH bundles and aggregates a plurality of wiring materials W, and the electrical connection box 1 is electrically connected through terminals, connectors, and the like provided at the terminals of the bundled wiring materials W. In addition to this, the wire harness WH may further include a grommet, a protector, a fixture, and the like.

  The electrical connection box 1 collects and accommodates electrical components such as connectors, fuses, relays, capacitors, branch parts, and electronic control units. The electrical junction box 1 is installed, for example, in an engine room or a vehicle compartment of the vehicle. The electrical junction box 1 is connected between a power source such as a battery and various electronic devices mounted in the vehicle via a routing member W or the like. The electrical 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 be called a junction box, a fuse box, a relay box, or the like. In the present embodiment, these are collectively called an electrical junction box.

  The electrical junction box 1 of the present embodiment includes an electronic component 2 and a housing 3 that houses the electronic component 2.

  The electronic component 2 is accommodated in the housing 3 and the wiring member W is electrically connected thereto. A plurality of electronic components 2 are provided. The electronic component 2 is, for example, a connector, a fuse, a relay, a capacitor, a branching unit, an electronic control unit, an electronic component unit obtained by unitizing these, or the like.

  The housing 3 accommodates the electronic component 2 in a housing space 35 formed inside. The housing 3 includes a frame 31 as a housing body, a lower cover 32 as a bottom member, and an upper cover 33 as a lid member. The casing 3 is formed in a hollow box shape as a whole by combining the frame 31, the lower cover 32, and the upper cover 33. The housing 3 has a three-layer divided structure in which the frame 31, the lower cover 32, and the upper cover 33 are divided. The frame 31, the lower cover 32, and the upper cover 33 are formed of an insulating synthetic resin.

  The frame 31 is a main member that forms the accommodation space 35. The frame 31 is formed in a cylindrical frame shape having openings on two surfaces facing the height direction X. The frame 31 is formed in a hollow shape by a side wall portion 31a as a main body side wall surface. The side wall portion 31 a is a wall body that forms the accommodation space portion 35. The side wall part 31a is formed in a substantially polygonal cylinder (substantially rectangular cylinder) and is open on both sides in the height direction X. The lower cover 32 is a dish-shaped (tray-shaped) member that closes the lower opening in the height direction X of the frame 31. The lower cover 32 is formed in a hollow shape by a side wall portion 32a as a bottom member side wall surface and a bottom portion 32b. The side wall part 32a is a wall body formed in a polygonal cylindrical shape (substantially rectangular cylindrical shape). The bottom 32b is a bottom that closes one opening (lower opening in the height direction X) of the side wall 32a. The upper cover 33 is a lid-like member that closes the upper opening in the height direction X of the frame 31. The upper cover 33 is formed in a hollow shape by a side wall portion 33a as a lid member side wall surface and a ceiling portion 33b. The side wall 33a is a wall formed in a polygonal cylinder (substantially rectangular cylinder). The ceiling part 33b is a ceiling body that closes one opening (the opening on the upper side in the height direction X) of the side wall part 33a.

  The housing 3 is arranged such that the lower opening in the height direction X of the frame 31 and the opening of the lower cover 32 face each other, and the upper opening in the height direction X of the frame 31 and the opening of the upper cover 33 face each other. To position. In the housing 3, the lower cover 32 is assembled below the height direction X of the frame 31, and the upper cover 33 is assembled above the height direction X of the frame 31. The housing 3 includes various types of locking mechanisms 34, and the upper cover 33 and the lower cover 32 are locked to the frame 31 via the locking mechanisms 34. As a whole, the housing 3 is formed in a substantially rectangular parallelepiped shape in which the direction along the first width direction Y is a long side and the direction along the second width direction Z is a short side.

  The housing 3 constituted by the frame 31, the lower cover 32, and the upper cover 33 has an accommodation space portion 35 and an insertion port 36.

  The accommodation space 35 is a space defined by the frame 31, the lower cover 32, and the upper cover 33 and surrounded by the frame 31, the lower cover 32, and the upper cover 33. The accommodation space 35 accommodates the electronic component 2 therein. The accommodating space 35 is partitioned by the side wall 31 a of the frame 31, the side wall 32 a of the lower cover 32, and the side wall 33 a of the upper cover 33 with respect to the first width direction Y and the second width direction Z. The accommodation space 35 is partitioned by the bottom 32 b of the lower cover 32 at the lower side in the height direction X. The accommodation space 35 is partitioned by the ceiling 33 b of the upper cover 33 on the upper side in the height direction X. The electric junction box 1 is provided with a block 37 in the accommodation space 35. The block 37 is detachably assembled to the frame 31 via various types of locking mechanisms. The block 37 is formed of an insulating synthetic resin, like the frame 31 and the like. The block 37 may be divided into a plurality of blocks. The block 37 is formed with a number of cavities. The electronic component 2 is assembled in each cavity. The block 37 is assembled with a circuit body made of a conductive metal material. The circuit body constitutes a part of the electric circuit by electrically connecting the electronic components 2 assembled in the cavities, and is, for example, a bus bar. In the block 37, a terminal or the like provided at the end of the routing material W routed from the lower side in the height direction X through the insertion port 36 or the like is inserted and fitted into each cavity. In addition, the electronic component 2 is inserted and fitted into each block 37 from above in the height direction X. With this configuration, each electronic component 2 and each wiring member W are electrically connected to each other via a circuit body such as a bus bar in a state assembled and mounted on the block 37, thereby forming a required electric circuit. To do.

  The insertion port 36 allows the routing material W connected to the electronic component 2 in the accommodation space 35 to be inserted inside and outside the housing 3, in other words, inside and outside the accommodation space 35. The insertion opening 36 is formed, for example, on the mating surface between the side wall 31a of the frame 31 and the side wall 32a of the lower cover 32, the bottom 32b of the lower cover 32, or the like. Here, a plurality of insertion openings 36 are formed. The routing material W connected to the electronic component 2 in the accommodation space 35 is inserted and routed through the insertion port 36 to the inside and outside of the housing 3.

  In the electrical junction box 1 configured as described above, the frame 31 has a double wall structure as shown in FIGS. In the electrical junction box 1, water that has entered the inside of the housing 3 through the gap between the connection portions of the frame 31 and the upper cover 33 is used as a space portion (guide space portion 38 to be described later) inside the double wall. Through the vertical direction. With this configuration, the electrical junction box 1 suppresses the ingress of water into the accommodation space 35 side in which the electronic component 2 is accommodated.

  Specifically, in the electrical junction box 1, the housing 3 has a guide space portion 38. The guide space portion 38 is partitioned through the partition wall portion 31b in the horizontal direction side of the housing space portion 35 inside the housing 3 and extends along the vertical direction, and vertically enters the water that has entered the interior. It is what leads to. The partition wall portion 31b is a wall body formed in a substantially polygonal cylindrical shape (substantially rectangular cylindrical shape) smaller than the side wall portion 31a. The partition wall portion 31b is formed on the inner side of the side wall portion 31a of the frame 31 with a space from the side wall portion 31a. The partition wall portion 31b is formed integrally with the side wall portion 31a via a rib 31c (see FIGS. 3, 4 and the like) with an outer surface facing the inner surface of the side wall portion 31a in the horizontal direction. The rib 31c is interposed between the partition wall portion 31b and the side wall portion 31a and connects them, and extends along the stacking direction (vertical direction). Here, a plurality of ribs 31c are provided at intervals in the horizontal direction. In the frame 31, a space portion formed between the side wall portion 31 a and the partition wall portion 31 b is formed as a guide space portion 38. The partition wall portion 31b and the guide space portion 38 partitioned by the partition wall portion 31b are formed so as to surround the horizontal side of the accommodation space portion 35 (however, the partition wall portion 31b is partially included). It is allowed that there is a portion without the guide space 38). In other words, in the frame 31, in the frame 31, the side wall portion 31 a constitutes the outer wall body of the double wall structure, and the partition wall portion 31 b constitutes the inner wall body of the double wall structure.

  The casing 3 has a maze-like structure at the connection portion between the frame 31 and the upper cover 33, thereby suppressing water permeation itself through the gap between the connection portion between the frame 31 and the upper cover 33. doing. Specifically, the upper cover 33 has an outer wall portion 33c formed on the outer surface of the side wall portion 33a. The outer side wall part 33c is formed integrally with the side wall part 33a with a space in the horizontal direction from the side wall part 33a. In the housing 3, the upper cover 33 and the frame 31 are assembled, and the upper end in the vertical direction of the side wall 31 a of the frame 31 is a space between the side wall 33 a and the outer wall 33 c of the upper cover 33. Inserted into. Further, in the case 3 in which the upper cover 33 and the frame 31 are assembled, the vertically lower end of the side wall 33a of the upper cover 33 is between the side wall 31a and the partition wall 31b of the frame 31. The space portion, that is, the guide space portion 38 is inserted. That is, the housing 3 overlaps in the order of the partition wall portion 31b, the side wall portion 33a, the side wall portion 31a, and the outer wall portion 33c from the inner side to the outer side of the housing 3 to form an overlapping portion. With this configuration, the electrical junction box 1 has a labyrinth shape in which the side wall portion 31a of the frame 31, the partition wall portion 31b, the side wall portion 33a of the upper cover 33, and the outer wall portion 33c overlap each other in the inner and outer directions of the housing 3. The structure of As a result, the electrical junction box 1 can suppress water from entering the housing space 35 side from the outside through the gap between the frame 31 and the upper cover 33. And even if water infiltrates into the inner side of the housing 3 through the gap between the connection portions of the frame 31 and the upper cover 33, the electrical junction box 1 does not pass the water vertically through the guide space 38. By guiding downward in the direction, water can be prevented from entering the housing space 35 in which the electronic component 2 is housed.

  Further, as shown in FIGS. 2, 3, and 4, the housing 3 of the present embodiment further includes drainage ribs 31 d in the guide space portion 38 and a partition wall portion 31 b that partitions the guide space portion 38. A part thereof is shaped to match the drainage rib 31d. With this configuration, the electrical junction box 1 can more appropriately treat the water that has entered the housing 3.

  Specifically, the drainage rib 31d extends in the guide space 38 along the guide direction A that intersects the vertical direction (height direction X). With this configuration, the drainage rib 31d guides the water guided vertically downward in the guide space 38 to the drain outlets 31e and 31f side of the guide space 38 along the guide direction A. The drainage rib 31d is formed integrally with the side wall portion 31a and the partition wall portion 31b. The drainage rib 31d is formed as a rod-shaped part. The drainage ports 31 e and 31 f are openings for draining water guided through the guide space 38 to the outside of the guide space 38. The drain ports 31 e and 31 f are provided at the lower end in the vertical direction of the guide space 38. The drain ports 31e and 31f are open toward the lower side in the vertical direction. The drainage ribs 31d are provided extending around the drainage outlets 31e and 31f by bypassing the water-avoidance site 39 inside the housing 3.

  Here, the water avoidance site 39 is a site that is located on the housing space 35 side of the housing 3 and to which water is not preferable. The wet water avoidance part 39 is, for example, an electrical contact part such as a connector for connecting the electronic component 2 and the routing material W or a part close to the electrical contact part in the housing 3. Here, as an example, the water avoidance site 39 is located at a relatively deeper position than the other electrical contact sites from the vertical upper end of the side wall 31a of the frame 31 toward the vertical lower side. The description will be made assuming that the connector is an electrical contact portion. The drainage ports 31e and 31f are provided so as to avoid the wet water avoidance site 39. Here, a total of two drain outlets 31e and 31f are provided. The drain port 31e and the drain port 31f are located on both sides of the water-avoided portion 39 across the first width direction Y. In other words, the water avoidance site 39 is located between the drain port 31e and the drain port 31f with respect to the first width direction Y.

  The drainage ribs 31d extend toward the two drainage ports 31e and 31f along the guide direction A that intersects the vertical direction (the height direction X). Here, the drainage rib 31d has a vertex 31g between the drainage port 31e and the drainage port 31f with respect to the first width direction Y. The drainage rib 31d is formed with the apex 31g as the apex in the vertical direction and the both sides of the first width direction Y being inclined downward in the vertical direction. More specifically, the drainage rib 31d has an inclined surface 31da formed with the apex 31g as a vertical apex, and one side in the first width direction Y is inclined downward in the vertical direction toward the drainage port 31e. Have. Furthermore, the drainage rib 31d has an inclined surface 31db that is formed such that the other side in the first width direction Y is inclined downward in the vertical direction toward the drainage port 31f. That is, the drainage rib 31d is formed to have a substantially mountain shape when viewed along the second width direction Z (as viewed in the second width direction), with the apex portion 31g as the apex in the vertical direction. In the drainage rib 31d, the direction of inclination (downwardly obliquely) is the direction A of water guided through the induction space 38.

  The casing 3 of the present embodiment is further provided in the guide space 38 so as to extend along the vertical direction (the height direction X), and extends from the drain rib 31d to the drain ports 31e and 31f. 31h and 31i. The vertical rib 31h is formed along the vertical direction so as to extend from one end in the first width direction Y of the drainage rib 31d to the edge of the drainage port 31e from the lower end in the vertical direction. The vertical rib 31i extends along the vertical direction from the other end in the first width direction Y of the drainage rib 31d to the edge of the drainage port 31f from the lower end in the vertical direction. The vertical ribs 31h and 31i are formed integrally with the side wall portion 31a and the partition wall portion 31b in the same manner as the drainage rib 31d. The vertical ribs 31h and 31i are formed as rod-shaped portions.

  And as for the partition wall part 31b of this embodiment, the edge part 31j of the vertical direction lower side is located along the drainage rib 31d. More specifically, the partition wall portion 31b has a vertically lower end 31j aligned with the drainage rib 31d. The partition wall portion 31b of the present embodiment is a region below the vertical direction (height direction X) of the drainage rib 31d and lateral to the horizontal direction (first width direction Y) of the vertical ribs 31h and 31i. A region surrounded by the rib 31d and the vertical ribs 31h and 31i constitutes a notch 31k. The cutout portion 31k is configured by cutting out a region surrounded by the drainage rib 31d and the vertical ribs 31h and 31i in the partition wall portion 31b and penetrating along the second width direction Z.

  The electrical junction box 1 configured as described above has been infiltrated even when water has entered the inside of the housing 3 through a gap between the connection portions of the frame 31 and the upper cover 33, for example. Water is guided downward in the vertical direction through the guide space 38. With this configuration, the electrical junction box 1 can suppress water from entering the housing space 35 side in which the electronic component 2 is housed. At this time, the electrical junction box 1 guides the water guided vertically downward in the guide space 38 to the drain outlets 31e and 31f along the guide direction A intersecting the vertical direction by the drain ribs 31d. To do. More specifically, the electrical junction box 1 avoids flooding by moving the water guided downward in the vertical direction in the guidance space 38 on the inclined surfaces 31da and 31db of the drainage rib 31d by its own weight. The part 39 is detoured and guided to the drain ports 31e and 31f. As a result, the electrical junction box 1 suppresses the water guided vertically downward in the guide space 38 from adhering to the water-avoided site 39 or splashing back toward the water-avoided site 39. can do. In the electrical junction box 1, water that is guided vertically downward in the guide space 38 and falls onto the bottom 32b of the lower cover 32 is, for example, a discharge port (not shown) formed in the bottom 32b. Is appropriately processed by being discharged from the housing 3 to the outside.

  The electrical junction box 1 and the wire harness WH described above are formed in the housing 3 by the guide space portion 38 that is partitioned through the partition wall portion 31b on the lateral side of the storage space portion 35 that stores the electronic component 2. The water that has entered the inside is guided downward in the vertical direction for treatment. At this time, the electrical junction box 1 is configured to guide the water guided downward in the vertical direction in the guide space 38 by the drainage rib 31d provided in the guide space 38 along the guide direction A that intersects the vertical direction. Thus, the guide space portion 38 can be guided to the drain ports 31e and 31f side. With this configuration, the electrical junction box 1 prevents the water guided in the induction space portion 38 from adhering to the electronic component 2 or the like in the accommodation space portion 35 and being wetted by the electronic component 2 or the like, The infiltrated water can be drained to the outside of the guide space 38 from the drain ports 31e and 31f. In addition, in the electrical junction box 1, an end 31j on the lower side in the vertical direction of the partition wall portion 31b that partitions the guide space portion 38 is positioned along the drainage rib 31d. With this configuration, the electrical junction box 1 can suppress the depth along the vertical direction of the guide space 38, and therefore, it is easy to form the partition wall portion 31 b that partitions the guide space 38. Can do. That is, the electrical junction box 1 can be suppressed so that the depth along the vertical direction of the partition wall portion 31b is relatively shallow. With this configuration, in the electrical junction box 1, for example, when the partition wall portion 31b is molded, the length of the die piece inserted into the space portion serving as the guide space portion 38 is relatively long. Can be suppressed. As a result, the electrical junction box 1 can suppress the deterioration of the moldability of the partition wall portion 31b, and can reduce the portion where the thickness is thin and the strength is relatively low in the mold top as much as possible. Therefore, the durability of the mold can be improved. That is, the electrical junction box 1 can achieve both the treatment of water that has entered the inside of the housing 3 and the improvement of the strength of the mold for molding the partition wall portion 31b. As a result, the electrical junction box 1 and the wire harness WH can appropriately treat the water that has entered the inside of the housing 3.

  Here, in the electrical junction box 1 and the wire harness WH described above, a region surrounded by the drainage rib 31d and the vertical ribs 31h and 31i constitutes the cutout portion 31k in the partition wall portion 31b. With this configuration, the electrical connection box 1 and the wire harness WH have a relatively shallow depth along the vertical direction of the partition wall 31b by forming the notch 31k in the region of the partition wall 31b. Can be suppressed. As a result, the electrical junction box 1 and the wire harness WH can realize deterioration suppression of the moldability of the partition wall portion 31b and improvement of the durability of the mold as described above.

  More specifically, in the electrical junction box 1 and the wire harness WH described above, the drainage rib 31d is provided so as to bypass the water-avoided portion 39. With this configuration, the electrical junction box 1 properly suppresses water exposure to the water avoidance site 39 by providing the partition wall portion 31b up to the drainage rib 31d portion without providing the partition wall portion 31b up to the water exposure avoidance site 39. be able to. That is, the electrical junction box 1 may be configured to be able to suppress water exposure to the water avoidance site 39 without providing the partition wall portion 31b in a portion where the water exposure avoidance site 39 is bypassed by the drainage rib 31d. it can. As a result, the electrical junction box 1 can be suppressed such that the depth along the vertical direction of the partition wall portion 31b becomes relatively shallow as described above. In particular, in the electrical junction box 1, the water avoidance portion 39 is at a relatively deeper position than other electrical contact portions with respect to the vertical direction, and the depth along the vertical direction of the partition wall portion 31b is deeper. Tend to be. On the other hand, since the electrical junction box 1 can suppress the depth along the vertical direction of the partition wall portion 31b of this portion as described above to be relatively shallow, The effect of suppressing deterioration of moldability and improving the durability of the mold can be remarkably exhibited.

  The electrical 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 described in the claims.

  The case 3 described above has been described as having a three-layer structure in which the frame 31, the lower cover 32, and the upper cover 33 are divided. However, the present invention is not limited to this. For example, the frame 31 and the lower cover 32 May be integrated.

  In the above description, the water avoidance site 39 has been described as being an electrical contact site of a connector located at a relatively deeper position than other electrical contact sites, but is not limited thereto. Further, the housing 3 described above may be configured not to include the vertical ribs 31h and 31i.

DESCRIPTION OF SYMBOLS 1 Electrical junction box 2 Electronic component 3 Housing | casing 31b Partition wall part 31d Drainage rib 31e, 31f Drainage port 31h, 31i Vertical rib 31j End part 31k Notch part 35 Accommodating space part 38 Guidance space part 39 Submersion avoidance part A Guidance direction W Wiring material WH Wire harness

Claims (4)

An accommodation space portion that is formed inside and accommodates electronic components, and a guidance space portion that guides water that has been partitioned through the partition wall portion in the horizontal direction of the accommodation space portion and invaded into the interior downward in the vertical direction; And the water that is provided along the guide direction that intersects the vertical direction in the guide space part and that is guided downward in the vertical direction in the guide space part is provided along the guide direction of the guide space part. Provided with a housing with drainage ribs leading to the drainage side
The partition wall is characterized in that the lower end of the vertical direction is located along the drainage rib.
Electrical junction box. The casing is provided to extend along the vertical direction in the guide space, and has a vertical rib extending from the drainage rib to the drainage port,
The partition wall portion is a region on the lower side in the vertical direction of the drainage rib and in the horizontal direction side of the vertical rib, and a region surrounded by the drainage rib and the vertical rib constitutes a cutout portion.
The electrical junction box according to claim 1. The drainage rib is provided around the water avoidance site,
The electrical junction box according to claim 1 or 2. Conductive wiring material,
An electrical junction box electrically connected to the routing material;
The electrical junction box is
A housing space portion for accommodating an electronic component formed inside and electrically connected to the wiring material, and water that has been partitioned through the partition wall portion inside the housing space portion in the horizontal direction and has entered the interior. A guide space part that guides the lower side in the vertical direction, and water that is provided in the guide space part so as to extend along the guide direction that intersects the vertical direction, and that guides the water guided in the lower part in the vertical direction. A housing having a drainage rib that guides to the drainage side of the guide space along the guide direction,
The partition wall is characterized in that the lower end of the vertical direction is located along the drainage rib.
Wire harness.

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