JP2023102652A - electric junction box - Google Patents

Abstract

An electric junction box is provided which is excellent in workability and suppresses separation of a case cover from a case body. An electric connection box (1) includes a case body (10) and a case cover (30) fastened to the case body (10) by a fastening member, and the case body (10) is a locked portion provided on the case cover (30). 35, a fastening portion 20 to which a fastening member inserted through a fastening hole 34 provided in the case cover 30 is fastened, and a reinforcement connecting the fastening piece 14 and the fastening portion 20. a portion 21; [Selection drawing] Fig. 3

Description

The present invention relates to electrical junction boxes.

2. Description of the Related Art Conventionally, an electric junction box has been proposed that includes a case body with an open top and a case cover that is attached to the case body so as to close the top opening of the case body. One conventional electrical connection box has a locking structure in which a locking piece of a case body is locked to a locked portion of a case cover, thereby locking the case body and the case cover (see, for example, Patent Document 1).

JP 2008-99392 A

In the above-described conventional electrical connection box, the lock structure described above may bend and deform such that the locking pieces fall down when the case cover is assembled to the case body. This complicates the work of manufacturing the electric junction box (the work of assembling the case cover to the case body). Conventional electrical junction boxes, including the electrical junction box described above, are typically mounted on vehicles with electronic components such as relays and fuses accommodated therein. When the electric junction box is mounted on the vehicle in this manner, the lock structure described above may be bent and deformed so that the locking piece is disengaged from the locked portion due to an external impact or the like. As a result, the case cover may be detached from the case body.

As described above, the conventional electric connection box has room for improvement from the viewpoint of the work of assembling the case cover to the case body (i.e., workability) and maintaining the state of assembly between the case body and the case cover (i.e., suppression of detachment of the case cover from the case body).

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide an electrical junction box that is excellent in workability and that prevents the case cover from being detached from the case body.

In order to achieve the aforementioned objects, the electrical connection box according to the present invention is characterized as follows.

An electric junction box comprising a case body and a case cover fastened to the case body by a fastening member,
The case body is
a locking piece locked to a locked portion provided on the case cover;
a fastening portion to which the fastening member inserted through the fastening hole provided in the case cover is fastened;
a reinforcing portion that connects the locking piece and the fastening portion;
Must be an electric connection box.

The electric connection box according to the present invention will be described below.
According to the electrical connection box of this configuration, the locking piece of the case body and the locked portion of the case cover are locked, and the case body and the case cover are fastened by the fastening member. As a result, separation of the case cover from the case main body is reliably suppressed. Further, in the case main body, the locking piece and the fastening portion to which the fastening member is fastened are connected by the reinforcing portion. As a result, the reinforcing portion suppresses bending deformation such that the locking piece collapses when the case cover is assembled to the case body.
Thus, the electrical junction box of this configuration is excellent in workability and suppresses separation of the case cover from the case body.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings.

FIG. 1 is a front perspective view of an electric connection box according to an embodiment of the invention. 2 is a rear perspective view of the electrical connection box shown in FIG. 1. FIG. FIG. 3 is an exploded perspective view of the electrical connection box shown in FIG. 1; FIG. 4 is a top view of the electric connection box shown in FIG. 1 (however, the case cover is removed from the case main body). 5 is a front perspective view of the case main body shown in FIG. 3. FIG. 6 is a rear perspective view of the case main body shown in FIG. 3. FIG. 7 is a rear perspective view of the case cover shown in FIG. 3. FIG. 8 is a top view of the bus bar shown in FIG. 4. FIG.

<Embodiment>
An electric connection box 1 according to an embodiment of the present invention shown in FIGS. 1 to 4 will be described below with reference to the drawings. The electrical connection box 1 is typically mounted on a vehicle and is a fuse box or the like having an internal space for accommodating electronic components such as a fuse 2 and electric wires 6 to 9 with terminals and other components (not shown). Also, the electrical junction box 1 is, for example, an electrical junction box used in a high-voltage system.

Hereinafter, for convenience of explanation, "front", "rear", "left", "right", "upper" and "lower" are defined as shown in FIGS. The "front-rear direction", the "left-right direction" and the "up-down direction" are orthogonal to each other. When the electrical connection box 1 is mounted on a vehicle, the terms "front-rear direction", "left-right direction" and "up-down direction" correspond to the front-rear direction, left-right direction and up-down direction of the vehicle, respectively. Further, the left-right direction corresponds to the "predetermined direction" of the present invention, and the front-rear direction corresponds to the "intersecting direction" of the present invention. Furthermore, the vertical direction corresponds to the direction in which the case cover 30 is attached to the case body 10 .

In the electric junction box 1, as shown in FIGS. 1 to 4, terminal-equipped electric wires 6 and 7 electrically connected to each other through fuses 2 accommodated in the inner space of the electric junction box 1 are led out of the electric junction box 1 through electric wire outlet holes 60 and 70. Similarly, in the electrical junction box 1, the terminal-equipped wires 8 and 9 electrically connected to each other through the busbars 3 accommodated in the inner space of the electrical junction box 1 are led out of the electrical junction box 1 through the wire outlet holes 80 and 90. The wire outlet holes 60 and 80 are provided in the front side wall portion of the electrical junction box 1 , and the wire outlet holes 70 and 90 are provided in the rear side wall portion of the electrical junction box 1 .

The terminal-equipped electric wire 6 includes an electric wire 6a having a conductor and a coating covering the conductor, and a terminal 6b electrically connected to the exposed conductor at the end of the electric wire 6a. Similarly, the terminal-equipped electric wire 7 has an electric wire 7a having a conductor and a coating covering the circumference of the conductor, and a terminal 7b electrically connected to the exposed conductor at the end of the electric wire 7a. Similarly, the terminal-equipped electric wire 8 has an electric wire 8a having a conductor and a coating covering the conductor, and a terminal 8b electrically connected to the exposed conductor at the end of the electric wire 8a. Similarly, the terminal-equipped electric wire 9 has an electric wire 9a having a conductor and a coating covering the circumference of the conductor, and a terminal 9b electrically connected to the exposed conductor at the end of the electric wire 9a.

In addition to the fuse 2, the busbar 3, and the terminal-equipped wires 6 to 9, the internal space of the electric connection box 1 accommodates a pair of busbars B for connecting the fuse 2 and the terminal-equipped wires 6, 7 (specifically, the terminals 6b, 7b) respectively. The bus bar B is configured to have a larger width (length in the left-right direction in FIGS. 3 and 4) than the terminal-equipped wires 6 and 7 in order to secure a contact area with the terminals 6b and 7b. Further, the length (that is, the width) in the left-right direction of each connection portion of the busbar B with the terminals 6b and 7b is configured to be larger than the length between a pair of regulation walls 19 to be described later.

As shown in FIGS. 1 to 3, the electric connection box 1 is composed of a case body 10 having an opening at the upper end, and a case cover 30 assembled to the case body 10 so as to close the upper end opening. The case main body 10 and the case cover 30 that constitute the electric junction box 1 are resin moldings. The case body 10 and the case cover 30 that constitute the electric connection box 1 will be described in order below.

The electrical junction box 1 further includes bolts 4 and nuts 5 for fastening the case body 10 and the case cover 30 together. The bolt 4 and nut 5 correspond to the "fastening member" of the present invention.

First, the case body 10 will be described. Particularly, as shown in FIGS. 5 and 6, the case main body 10 includes a substantially rectangular cylindrical side wall portion 11 extending in the vertical direction, and a bottom wall portion 12 that closes the lower end opening of the side wall portion 11 and constitutes most of the outer appearance of the bottom surface of the electrical connection box 1. The case main body 10 has an internal space in which electronic components are accommodated, defined by a side wall portion 11 and a bottom wall portion 12 .

The side wall portion 11 constitutes most of the appearance of the side surface of the electrical connection box 1 . The right side wall portion 11 is provided with a notch portion 13 recessed downward at substantially the center portion in the front-rear direction. In the case body 10, a locking piece 14 that is locked to a locked portion 35, which will be described later, is erected substantially at the center of the notch 13 in the front-rear direction. The locking piece 14 has a substantially rectangular plate-like shape. A right surface of the locking piece 14 is provided with a locking protrusion 14a that is locked in the locking hole 35a of the locked portion 35 so as to protrude rightward (see FIG. 6 in particular).

A partition wall 15 is erected in the substantially central portion in the left-right direction of the internal space of the case main body 10 (electric junction box 1). Thereby, a first internal space 16 in which the terminal-equipped wires 6 and 7 are connected via the fuse 2 and a second internal space 17 in which the terminal-equipped wires 8 and 9 are connected via the busbar 3 are defined. A fuse mounting portion 18 on which the fuse 2 is mounted is provided in the first internal space 16 . The fuse placement portion 18 has a pair of regulation walls 19 for positioning the fuse 2 standing at a predetermined interval in the left-right direction. The pair of restricting walls 19 are positioned substantially in the center in the front-rear direction and face the locking pieces 14 in the left-right direction. The length between the pair of regulating walls 19 is configured to be shorter than the lateral length (that is, the width) of each connecting portion of the busbar B with the terminals 6b and 7b.

Here, the partition wall 15 is formed integrally with the first wall portion 15a, the second wall portion 15b, the third wall portion 15c, and the right restricting wall 19 of the pair of restricting walls 19 . The first wall portion 15a has a portion extending backward from the rear surface of the front side wall portion 11 by a predetermined length, and a portion extending forward from the front surface of the rear side wall portion 11 by a predetermined length. The second wall portion 15b has a portion extending a predetermined length rearward from the rear end portion of the front first wall portion 15a, and a portion extending a predetermined length forward from the front end portion of the rear first wall portion 15a. The third wall portion 15c has a portion extending a predetermined length rearward from the rear end portion of the second wall portion 15b on the front side, and a portion extending a predetermined length forward from the front end portion of the second wall portion 15b on the rear side. The right restricting wall 19 of the pair of restricting walls 19 is positioned between the front third wall 15c and the rear third wall 15c.

In other words, the partition wall 15 has a first wall portion 15a, a second wall portion 15b, and a third wall portion 15c, which sandwich the right restricting wall 19 in the front-rear direction, so as to be line-symmetrical. In the partition wall 15, the first wall portion 15a is positioned substantially at the center in the left-right direction, the second wall portion 15b is positioned to the right of the substantially center portion in the left-right direction, and the third wall portion 15c is positioned to the left of the substantially center portion in the left-right direction. Note that the right restricting wall 19 is positioned to the left of the third wall portion 15c.

In the first internal space 16, a stud bolt S1 projecting upward from the bottom wall portion 12 is provided at a location corresponding to the second wall portion 15b on the front side in the left-right direction, and a stud bolt S2 projecting upward from the bottom wall portion 12 is provided at a location corresponding to the second wall portion 15b on the rear side in the left-right direction. The front busbar B and the terminal 6b of the terminal-equipped electric wire 6 are inserted through the stud bolt S1 (see FIGS. 3 and 4). The rear busbar B and the terminal 7b of the terminal-equipped electric wire 7 are inserted through the stud bolt S2 (see FIGS. 3 and 4).

In the second internal space 17, a stud bolt S3 projecting upward from the bottom wall portion 12 is provided at a location corresponding to the third wall portion 15c on the front side in the left-right direction, and a stud bolt S4 projecting upward from the bottom wall portion 12 is provided at a location corresponding to the third wall portion 15c on the rear side in the left-right direction. An insertion hole 42 of a front connection portion 41 of the busbar 3 and a terminal 8b of the terminal-equipped electric wire 8 are inserted through the stud bolt S3 (see FIGS. 3 and 4). The insertion hole 42 of the rear connection portion 41 of the busbar 3 and the terminal 9b of the electric wire 9 with terminal are inserted into the stud bolt S4 (see FIGS. 3 and 4).

Further, in the second internal space 17, a fastening portion 20 through which the bolt 4 is inserted protrudes between the locking piece 14 and the right restricting wall 19 in the left-right direction. The fastening portion 20 has a substantially cylindrical shape and is formed with a bolt insertion hole through which the bolt 4 is inserted.

The case body 10 has a reinforcing portion 21 that connects the locking piece 14 and the fastening portion 20 . The reinforcing portion 21 is integrally formed with the locking piece 14 and the fastening portion 20 so as to connect the left surface of the locking piece 14 and the right portion of the peripheral wall of the fastening portion 20 . The reinforcing portion 21 is configured to extend in the plate thickness direction of the locking piece 14 (i.e., the left-right direction) in order to more appropriately suppress disengagement of the locking piece 14 from the locked portion 35 of the case cover 30, which will be described later (that is, to increase the strength of the locking piece 14).

The front and rear side wall portions 11 of the case body 10 are provided with gutter-like portions 22 from which the terminal-equipped wires 6 to 9 are drawn out. The gutter-shaped portion 22 is provided with gutter-shaped portions 22a to 22d at locations corresponding to the wire outlet holes 60 to 90, respectively.

Specifically, a semi-cylindrical gutter-shaped portion 22a that opens upward is provided at a location corresponding to the wire outlet hole 60 (on the left side of the front side wall portion 11). The gutter-shaped portion 22 a has a function of forming a lower portion of the inner wall that defines the wire outlet hole 60 . Similarly, a semi-cylindrical gutter-shaped portion 22b opening upward is provided at a portion corresponding to the wire outlet hole 70 (on the left side of the rear side wall portion 11). The gutter-shaped portion 22b has a function of forming the lower portion of the inner wall that defines the wire outlet hole 70. As shown in FIG. Similarly, a semi-cylindrical gutter-shaped portion 22c that opens upward is provided at a portion corresponding to the wire outlet hole 80 (on the right side of the front side wall portion 11). The gutter-shaped portion 22c has a function of forming a lower portion of the inner wall that defines the wire outlet hole 80. As shown in FIG. Similarly, a semi-cylindrical gutter-shaped portion 22d that opens upward is provided at a portion corresponding to the wire outlet hole 90 (on the right side of the rear side wall portion 11). The gutter-shaped portion 22 d has a function of forming the lower portion of the inner wall that defines the wire outlet hole 90 .

Next, the case cover 30 will be explained. As shown in FIG. 7, the case cover 30 integrally includes an annular side wall portion 31 that constitutes most of the outer appearance of the upper side surface of the electrical junction box 1, and an upper wall portion 32 that closes the annular upper end opening of the side wall portion 31 and constitutes most of the outer appearance of the upper surface of the electrical junction box 1. The annular lower edge portion of the side wall portion 31 has a shape corresponding to the annular upper edge portion of the side wall portion 11 of the case body 10, and the annular upper edge portion of the side wall portion 11 can be fitted inside the side wall portion 31.

The upper wall portion 32 is provided with a recessed portion 33 that is recessed downward in a substantially central portion in the front-rear direction and on the right side in the left-right direction. The amount of depression of the recess 33 downward is such that the bolt 4 can be accommodated in the so-called recessed space of the recess 33 when the case cover 30 is attached to the case body 10 (see FIG. 1). A bolt insertion hole 34 through which the bolt 4 is inserted (that is, penetrates in the vertical direction) is provided on the bottom surface of the recess 33 at a location corresponding to the fastening portion 20 of the case body 10 .

On the right side wall portion 31 , a locked portion 35 to which the locking piece 14 of the case body 10 is locked is provided at a location corresponding to the locking piece 14 . The locked portion 35 is provided with a locking hole 35a penetrating in the left-right direction. The locking piece 14 is locked to the locked portion 35 by inserting the locking projection 14a of the locking piece 14 into the locking hole 35a.

As shown in FIGS. 3 and 7, the front and rear side wall portions 31 of the case cover 30 are provided with gutter-like portions 36 from which the terminal-equipped electric wires 6 to 9 are drawn out. The gutter-like portion 36 is provided with gutter-like portions 36a-36d at locations corresponding to the wire drawing holes 60-90, respectively.

Specifically, a semi-cylindrical gutter-like portion 36a that opens downward is provided at a location (left side of the front side wall portion 31) corresponding to the wire outlet hole 60 (see FIG. 3). The gutter-shaped portion 36a has a function of forming the upper portion of the inner wall that defines the wire outlet hole 60. As shown in FIG. Similarly, a semi-cylindrical gutter-like portion 36b opening downward is provided at a portion corresponding to the wire outlet hole 70 (on the left side of the rear side wall portion 31) (see FIG. 7). The gutter-shaped portion 36b has a function of forming the upper portion of the inner wall that defines the wire outlet hole 70. As shown in FIG. Similarly, a semi-cylindrical gutter-like portion 36c that opens downward is provided at a portion (right side of the front side wall portion 31) corresponding to the wire outlet hole 80 (see FIG. 3). The gutter-shaped portion 36 c has a function of forming the upper portion of the inner wall that defines the wire outlet hole 80 . Similarly, a semi-cylindrical gutter portion 36d that opens downward is provided at a portion corresponding to the wire outlet hole 90 (on the right side of the rear side wall portion 31) (see FIG. 7). The gutter-shaped portion 36 d has a function of forming the upper portion of the inner wall that defines the wire outlet hole 90 .

The case body 10 and the case cover 30 that constitute the electrical junction box 1 have been described above. In order to obtain the electric connection box 1 composed of the case body 10 and the case cover 30, it is necessary to assemble the case cover 30 to the case body 10. As shown in FIG. A method for manufacturing the electrical connection box 1 will be described below.

First, it is necessary to accommodate electronic parts and the like in the internal space of the electrical connection box 1 . Specifically, the fuse 2 , the pair of busbars B, and the terminal-attached wires 6 and 7 are housed in the first internal space 16 , and the busbar 3 and the terminal-attached wires 8 and 9 are housed in the second internal space 17 . The order of housing the electronic components and the like in the first internal space 16 and housing the electronic components and the like in the second internal space 17 does not matter.

First, accommodation of the electronic components and the like in the first internal space 16 will be described. In order to connect the electric wires 6 and 7 with terminals, the fuse 2 and the electric wires 6 and 7 with terminals are connected. For this purpose, a pair of busbars B are inserted through the stud bolts S1 and S2, respectively, and the fuse 2 is mounted on the fuse mounting portion 18 so that the connecting portion of the fuse 2 contacts the busbars B. As shown in FIG. At this time, the fuse 2 is positioned by the pair of regulation walls 19 . The connection between the fuse 2 and the pair of busbars B may be by simply placing them in contact with each other, or by welding.

Then, the terminal 6b of the terminal-equipped electric wire 6 is inserted through the stud bolt S1, and the terminal 7b of the terminal-equipped electric wire 7 is inserted through the stud bolt S2 (see FIGS. 3 and 4). As a result, the electronic components and the like are completely accommodated in the first internal space 16, and the fuse 2 and the terminal-equipped wires 6 and 7 are connected to each other. In other words, the terminal-equipped electric wires 6 and 7 are connected via the fuse 2 .

Next, accommodation of the electronic components and the like in the second internal space 17 will be described. The bus bar 3 and the terminal-attached wires 8, 9 are connected to connect the terminal-attached wires 8, 9 respectively. Here, as shown in FIG. 8, the busbar 3 is integrally formed with a pair of connection portions 41 provided with insertion holes 42 through which the stud bolts S3 and S4 are respectively inserted, and a detour portion 43 connecting the pair of connection portions 41. The detour portion 43 is integrally formed with an extension portion 44 positioned to the left of the pair of connection portions 41 and extending in the front-rear direction, and a connecting portion 45 that connects the pair of connection portions 41 and the front and rear ends of the extension portion 44, respectively.

That is, in order to connect the bus bar 3 and the terminal-equipped electric wires 8, 9, respectively, the pair of connecting portions 41 of the bus bar 3 are inserted through the stud bolts S3, S4, respectively, the terminal 8b of the terminal-equipped electric wire 8 is inserted through the stud bolt S3, and the terminal 9b of the terminal-equipped electric wire 9 is inserted through the stud bolt S4 (see FIGS. 3 and 4). As a result, the electronic parts and the like are completely accommodated in the second internal space 17, and the busbar 3 and the terminal-equipped electric wires 8 and 9 are connected to each other. In other words, the terminal-equipped electric wires 8 and 9 are connected via the bus bar 3 .

At this time, the connecting portion 41 of the busbar 3 is arranged so as to sandwich the fastening portion 20, and the detour portion 43 is arranged so as to avoid the fastening portion 20 and pass between the fastening portion 20 and the fuse 2 in the left-right direction. More specifically, the extending portion 44 of the detour portion 43 is arranged between the restricting wall 19 and the fastening portion 20 at a portion corresponding to the restricting wall 19 on the right side of the partition wall 15 . That is, the extending portion 44 extends in the front-rear direction so as to correspond to the right restricting wall 19 .

Next, the case cover 30 is attached to the case main body 10 . First, the nut 5 of the fastening portion 20 of the case body 10 is attached, and then the case cover 30 is placed above the case body 10 so that the bolt insertion hole 34 corresponds to the fastening portion 20 and the locked portion 35 corresponds to the locking piece 14.

Next, the case cover 30 is moved downward so as to approach the case main body 10, and the locking pieces 14 (locking protrusions 14a) are locked to the locked portions 35 (locking holes 35a). As a result, the case cover 30 is attached to the case main body 10 . At this time, since the locking piece 14 is connected to the fastening portion 20 by the reinforcing portion 21 , bending deformation such as falling that hinders the assembly of the case cover 30 to the case main body 10 is suppressed.

Next, the bolt 4 is inserted through the bolt insertion hole 34 , the nut 5 , and the bolt insertion hole of the fastening portion 20 and tightened. As a result, the case cover 30 is fastened to the case main body 10 . As a result, the electrical connection box 1 is completed (see FIGS. 1 and 2).

When the case cover 30 is assembled and fastened to the case main body 10 in this manner, the gutter-shaped portion 22 of the case main body 10 and the gutter-shaped portion 36 of the case cover 30 define the wire extraction holes 60 to 90, and the electric wires 6 to 9 with terminals are extracted from the wire extraction holes 60 to 90. The terminal-equipped wires 6 to 9 are connected to external devices such as inverters and power supplies. The method for manufacturing the electrical junction box 1 has been described above.

<Action/effect>
According to the electrical connection box 1 according to the present embodiment, the locking piece 14 of the case body 10 and the locked portion 35 of the case cover 30 are locked, and furthermore, the case body 10 and the case cover 30 are fastened with the bolts 4 and nuts 5. As a result, detachment of the case cover 30 from the case main body 10 is reliably suppressed. Further, the reinforcing portion 21 prevents the locking piece 14 from being disengaged from the locked portion 35 . In the case body 10 , the locking piece 14 and the fastening portion 20 to which the bolt 4 and the nut 5 are fastened are connected by the reinforcing portion 21 . As a result, the reinforcing portion 21 suppresses the bending deformation of the locking piece 14 when the case cover 30 is attached to the case body 10 .
As described above, the electrical connection box 1 according to the present embodiment is excellent in workability, and the detachment of the case cover 30 from the case main body 10 is suppressed.

Furthermore, according to the electric connection box 1 of this embodiment, the bus bar 3, the fuse 2, and the electric wires 6 to 9 with terminals are accommodated in the case body 10, and the fastening portion 20 and the fuse 2 are arranged in the horizontal direction. The busbar 3 has a pair of connection portions 41 arranged to sandwich the fastening portion 20 in the front-rear direction, and a detour portion 43 that avoids the fastening portion 20 and passes between the fastening portion 20 and the fuse 2 so as to connect the pair of connection portions 41. As a result, it is possible to suppress an increase in the lateral width of the electrical connection box 1 . In other words, it is possible to suppress the increase in size of the electric connection box 1 and eventually to reduce the size.

<Other forms>
It should be noted that the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

Here, the features of the embodiments of the electrical connection box according to the present invention described above are summarized and listed briefly in [1] to [2] below.
[1]
An electric junction box (1) comprising a case body (10) and a case cover (30) fastened to the case body by fastening members (bolts 4 and nuts 5),
The case body (10) is
a locking piece (14) locked to a locked portion (35) provided on the case cover;
a fastening portion (20) to which the fastening member inserted through the fastening hole (bolt insertion hole 34) provided in the case cover is fastened;
a reinforcing portion (21) connecting the locking piece (14) and the fastening portion (20);
Electrical Junction Box (1).
[2]
In the electrical connection box (1) described in [1] above,
The case body (10) accommodates a bus bar (3) and a fuse (2),
The fastening portion (20) and the fuse (2) are arranged to line up in a predetermined direction,
The bus bar (3) is
a pair of connecting portions (41) arranged so as to sandwich the fastening portion in a direction intersecting with the predetermined direction;
a detour portion (43) that avoids the fastening portion and passes between the fastening portion and the fuse so as to connect the pair of connection portions;
Electrical Junction Box (1).

According to the electrical connection box having the configuration [1], the locking piece of the case body and the locked portion of the case cover are locked, and the case body and the case cover are fastened by the fastening member. As a result, separation of the case cover from the case main body is reliably suppressed. Further, in the case main body, the locking piece and the fastening portion to which the fastening member is fastened are connected by the reinforcing portion. As a result, the reinforcing portion suppresses bending deformation such that the locking piece collapses when the case cover is assembled to the case body.
Thus, the electrical junction box of this configuration is excellent in workability and suppresses separation of the case cover from the case body.

According to the electrical connection box having the configuration [2] above, the bus bar and the fuse are accommodated in the case body, and the fastening portion and the fuse are arranged side by side in the left-right direction. This bus bar has a pair of connection portions arranged to sandwich the fastening portion in a predetermined direction, and a detour portion that avoids the fastening portion and passes between the fastening portion and the fuse so as to connect the pair of connection portions. As a result, it is possible to suppress an increase in the width of the electric connection box in the cross direction. In other words, it is possible to suppress an increase in the size of the electric connection box, and eventually to reduce the size of the electric connection box.

1 electrical connection box 2 fuse 3, B bus bar 4 bolt (fastening member)
5 nut (fastening member)
6, 7, 8, 9 Electric wire with terminal 6a, 7a, 8a, 9a Electric wire 6b, 7b, 8b, 9b Terminal 10 Case body 11 Side wall 12 Bottom wall 13 Notch 14 Locking piece 14a Locking projection 15 Partition wall 15a First wall 15b Second wall 15c Third wall 16 First internal space 17 Second Internal space 18 Fuse mounting portion 19 Regulating wall 20 Fastening portion 21 Reinforcing portion 22, 22a, 22b, 22c, 22d, 36, 36a, 36b, 36c, 36d Gutter-shaped portion 30 Case cover 31 Side wall portion 32 Upper wall portion 33 Recess 34 Bolt insertion hole (fastening hole)
35 Locked portion 35a Locking hole 41 Connecting portion 42 Insertion hole 43 Detouring portion 44 Extension portion 45 Connecting portion 60, 70, 80, 90 Wire extraction hole S1, S2, S3, S4 Stud bolt

Claims (2)

An electric junction box comprising a case body and a case cover fastened to the case body by a fastening member,
The case body is
a locking piece locked to a locked portion provided on the case cover;
a fastening portion to which the fastening member inserted through the fastening hole provided in the case cover is fastened;
a reinforcing portion that connects the locking piece and the fastening portion;
electrical connection box. In the electrical connection box according to claim 1,
the case main body accommodates a bus bar and a fuse,
the fastening portion and the fuse are arranged to line up in a predetermined direction;
The busbar is
a pair of connecting portions arranged so as to sandwich the fastening portion in a direction intersecting with the predetermined direction;
a detour part that avoids the fastening part and passes between the fastening part and the fuse so as to connect the pair of connection parts;
electrical connection box.

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