JP7845964B2 - Electrical junction box unit, fastening structure for wires with terminals, and wires with terminals - Google Patents

Description

This invention relates to an electrical junction box unit, a fastening structure for wires with terminals, and wires with terminals.

Conventionally, electrical junction boxes have been proposed for mounting in vehicles and housing various electronic components such as fuses, relays, and electronic control units within a designated space. One conventional electrical junction box, for example, has a stud bolt that is electrically connected to the electronic components housed inside. A wire with a terminal connected to an external device is fastened to this stud bolt, thereby electrically connecting the external device to the electronic components (see, for example, Patent Document 1).

Japanese Patent Publication No. 2020-127249

In conventional electrical junction boxes (electrical junction box units), a stud bolt is inserted through the terminal hole of a wire with a terminal, and then a nut is screwed onto the stud bolt to fasten the wire with the terminal to it. Therefore, the fastening of the wire with the terminal to the stud bolt is affected by the tightness of the nut. In other words, if the nut is not tightened enough, the desired fastening of the wire with the terminal to the stud bolt may not be achieved. For this reason, conventionally, a torque wrench or similar tool was used to tighten the nut onto the stud bolt and control the fastening state of the wire with the terminal to the stud bolt. However, from the standpoint of work efficiency, it is preferable to be able to control the fastening state of the wire with the terminal to the stud bolt without using a torque wrench or similar tool.

This invention has been made in view of the above-described circumstances, and its objective is to provide an electrical connection box unit, a fastening structure for terminal-equipped wires, and terminal-equipped wires that allow for visual management of the fastening status of terminal-equipped wires to stud bolts.

To achieve the aforementioned objectives, the electrical junction box unit according to the present invention has the following features:

An electrical junction box having stud bolts that house electronic components and electrically connect to the electronic components,
A wire with terminals fastened to the aforementioned stud bolt, which electrically connects the external equipment and the aforementioned electrical junction box,
A nut is screwed onto the stud bolt to fasten the aforementioned terminal-equipped electric wire to the stud bolt,
An electrical junction box unit equipped with,
The aforementioned wire with terminals is
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
It must be an electrical junction box unit.

To achieve the aforementioned objectives, the terminal-equipped wire fastening structure according to the present invention is characterized by the following:

A fastening structure for a terminal-equipped electric wire to a stud bolt, comprising a stud bolt, an electric wire with a terminal fastened to the stud bolt, and a nut screwed onto the stud bolt,
The aforementioned wire with terminals is
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
The fastening structure must be for wires with terminals.

To achieve the aforementioned objectives, the terminal-equipped wire according to the present invention has the following features:

A wire with terminals that is fastened to a stud bolt,
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
It must be a wire with terminals.

The electrical connection box unit, the fastening structure for wires with terminals, and the wires with terminals according to the present invention are described below.
According to the present invention, a detection rib is provided at the bolt connection portion of a wire with a terminal, and the detection rib is configured to be displaceable from an initial position before fastening the wire with a terminal to the stud bolt to a fastened position after fastening. Specifically, at the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastened position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction. In other words, the fastening state of the wire with a terminal to the stud bolt can be confirmed by visually observing the state of the detection rib (whether or not it is in the fastened position). This makes it possible to manage the fastening state of the wire with a terminal to the stud bolt by visual inspection without using a torque wrench or the like.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by referring to the accompanying drawings and reading through the embodiments for carrying out the invention described below (hereinafter referred to as "embodiments").

Figure 1 is a perspective view of an electrical junction box unit according to an embodiment of the present invention. Figure 2 is an exploded perspective view of the main parts of Figure 1. Figure 3 is an enlarged perspective view of the main part of the fastening structure for a wire with a terminal according to an embodiment of the present invention, showing the state before fastening the wire with a terminal to the stud bolt. Figure 4 is a perspective view of a wire with terminals according to an embodiment of the present invention. Figure 5 is the first diagram illustrating the fastening structure of a wire with terminals, and is a cross-sectional view taken along line A-A in Figure 1. Figure 6 is a second diagram illustrating the fastening structure of a wire with terminals, and is a cross-sectional view taken along line A-A in Figure 1.

<Implementation>
Embodiments of the present invention will be described below with reference to the drawings. The electrical junction box unit 100 consists of an electrical junction box 1 in which stud bolts S are provided in the internal space, an electric wire 50 with terminals fastened to the stud bolts S, and a nut 60 screwed onto the stud bolts.

The electrical junction box 1 is typically a relay box mounted on a vehicle, having an internal space for housing electronic components such as relays and other electronic components (not shown). In this example, the terminal-equipped wire 50 electrically connects the electrical junction box 1 to external equipment (not shown), such as the vehicle's battery, on which the electrical junction box 1 is mounted.

For the sake of clarity, the terms "front," "back," "left," "right," "up," and "down" are defined as shown in Figures 1 to 6. The "front/back direction," "left/right direction," and "up/down direction" are mutually orthogonal.

<Electrical junction box 1>
The following describes the general structure of the electrical junction box 1. As shown in Figures 1 and 2, the electrical junction box 1 consists of a frame 10, a lower cover 20 assembled below the frame 10 to close the lower end opening of the frame 10, an upper cover 30 assembled above the frame 10 to close the upper end opening of the frame 10, and a side cover 40 assembled to the side wall portion 11 to close the notch 14 of the frame 10. All four of the above-mentioned components constituting the electrical junction box 1 are made of molded resin.

A stud bolt S is provided at the front end of the internal space of the electrical junction box 1. The stud bolt S connects to electronic components mounted in the electrical junction box 1 within the internal space via a busbar B (see Figures 3 and 5-6). A terminal-equipped wire 50, connected to an external device such as a battery (not shown), is fastened to the stud bolt S, thereby enabling an electrical connection between the electronic components and the external device. The frame 10, lower cover 20, upper cover 30, and side cover 40 constituting the electrical junction box 1 will be described in order below.

First, let's describe the frame 10. As shown in Figure 2, the frame 10 has a roughly rectangular cylindrical side wall portion 11 that extends in the vertical direction. The side wall portion 11 constitutes the majority of the external appearance of the side of the electrical connection box 1.

Multiple circumferential locations (three in this example) on the outer surface of the lower end of the side wall portion 11 are integrally provided with locking portions 12, each containing a through-hole extending in the vertical direction. The locking portions 12 serve to assemble the lower cover 20 to the frame 10.

Multiple locking portions 13 are integrally provided on the outer surface of the upper end of the side wall portion 11 at multiple locations in the circumferential direction (two locations in this example). The locking portions 13 have the function of assembling the upper cover 30 to the frame 10.

A notch 14 is formed in the side wall portion 11 at the location corresponding to the stud bolt S on the right front side. A terminal-equipped electric wire 50, which is fastened to the stud bolt S, is positioned in the notch 14, and a locking portion (not shown) is provided. The locking portion serves to assemble the side cover 40 to the frame 10.

Next, the lower cover 20 will be described. As shown in Figure 2, the lower cover 20 integrally comprises an annular side wall portion 21 that constitutes most of the external appearance of the lower side surface of the electrical junction box 1, and a bottom wall portion 22 that closes the annular lower end opening of the side wall portion 21 and constitutes most of the external appearance of the bottom surface of the electrical junction box 1. The annular upper end edge of the side wall portion 21 has a shape corresponding to the annular lower end edge of the side wall portion 11 of the frame 10, and is capable of being fitted with the annular lower end edge of the side wall portion 11.

Multiple locking pieces 23 extending upward are integrally provided on the outer surface of the side wall portion 21 at multiple circumferential locations (eight locations in this example) at the upper end of the side wall portion 21, corresponding to multiple locking portions 12 of the frame 10.

Next, the upper cover 30 will be described. As shown in Figure 2, the upper cover 30 integrally comprises an annular side wall portion 31 that constitutes most of the external 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 external appearance of the upper surface of the electrical junction box 1. The annular lower end edge of the side wall portion 31 has a shape corresponding to the annular upper end edge of the side wall portion 11 of the frame 10, and is capable of being fitted with the annular upper end edge of the side wall portion 11.

On the outer surface of the lower end of the side wall portion 31, at multiple locations in the circumferential direction (two locations in this example), a downward-extending locking piece 33 is integrally provided, each corresponding to a plurality of locking portions 13 of the frame 10, and containing a locking hole that penetrates in the front-rear direction.

Next, the side cover 40 will be described. As shown in Figure 2, the side cover 40 has a side wall portion 41 that extends vertically and is roughly rectangular in shape when viewed from above, corresponding to the notch 14 of the frame 10. The side wall portion 41 (especially the right side wall portion 41) constitutes a part of the external appearance of the side of the electrical connection box 1. A guide wall 42 is integrally provided on the side wall portion 41, extending downward to guide the wire 52 of the terminal-equipped wire 50.

The outer surfaces of the front and rear side walls 41 are integrally provided with short, outwardly projecting locking protrusions 43, corresponding to the locking portion (not shown) of the frame 10.

The above describes the frame 10, lower cover 20, upper cover 30, and side cover 40 that constitute the electrical junction box 1. To obtain the electrical junction box 1, which consists of the frame 10, lower cover 20, upper cover 30, and side cover 40, it is necessary to assemble the lower cover 20, upper cover 30, and side cover 40 onto the frame 10, respectively.

To assemble the lower cover 20 to the frame 10, the multiple locking pieces 23 (see Figure 2) of the lower cover 20 are inserted from below into the multiple through holes in the locking portion 12 (see Figure 2) of the frame 10. From this position, the annular upper end edge of the side wall portion 21 of the lower cover 20 is fitted onto the annular lower end edge of the side wall portion 11 of the frame 10, and the multiple locking pieces 23 are locked into the multiple locking portions 12. This completes the assembly of the lower cover 20 to the frame 10.

To assemble the upper cover 30 to the frame 10, the locking portion 13 (see Figure 2) of the frame 10 is inserted into the locking holes of the multiple locking pieces 33 (see Figure 2) of the upper cover 30. From this position, the annular lower end edge of the side wall portion 31 of the upper cover 30 is fitted onto the annular upper end edge of the side wall portion 11 of the frame 10, and the multiple locking pieces 33 are locked into the multiple locking portions 13. This completes the assembly of the upper cover 30 to the frame 10.

To attach the side cover 40 to the frame 10, the front and rear side walls 41 of the side cover 40 are inserted into the notch 14 of the frame 10 so as to close the notch 14, and the multiple locking protrusions 43 (see Figure 2) of the side cover 40 are locked to the locking parts (not shown) of the notch 14 in the frame 10. This completes the attachment of the side cover 40 to the frame 10. Note that the side cover 40 is attached to the frame 10 after the terminal-equipped wires 50 are fastened to the stud bolts S7.

In this way, the electrical junction box 1 is completed by assembling the lower cover 20, upper cover 30, and side cover 40 to the frame 10. The order of the assembly steps for the lower cover 20, upper cover 30, and side cover 40 to the frame 10 does not matter.

When the electrical connection box 1 is assembled, the locking of the multiple locking pieces 23 and the multiple locking parts 12 prevents the lower cover 20 from separating downward from the frame 10. Furthermore, the locking of the multiple locking pieces 33 and the multiple locking parts 13 prevents the upper cover 30 from separating upward from the frame 10. Additionally, the locking of the multiple locking projections 43 and the multiple locking parts in the notch 14 prevents the side cover 40 from separating to the right from the frame 10.

<50 wires with terminals>
The terminal-equipped wire 50 will now be described. As shown in Figures 3 and 4, the terminal-equipped wire 50 consists of a roughly L-shaped terminal 51 and a wire 52 to which the terminal 51 is connected. One end of the terminal-equipped wire 50 is connected (fastened) to a stud bolt S, and the other end is connected to an external device.

As shown in Figure 4, the terminal 51 is integrally constructed from a wire connection portion 53 extending vertically and connected to the electric wire 52, and a bolt connection portion 54 extending rearward from the upper end of the wire connection portion 53 and fastened to the stud bolt S. The bolt connection portion 54 is provided with a hole 55 that penetrates vertically and through which the stud bolt S is inserted. A gap 57 is defined in the bolt connection portion 54, cut out from the right edge to approximately the center in the left-right direction.

Detection ribs 56 are integrally provided at the left end of the bolt connection portion 54 and at the left end of the frame portion defining the gap 57. In other words, the left detection rib 56 is provided at the left end of the bolt connection portion 54, and the right detection rib 56 is provided at the left end of the edge portion defining the gap 57 in the bolt connection portion 54. These pair of detection ribs 56 are arranged so as to sandwich the hole portion 55 in the left-right direction.

The detection rib 56 is configured to be displaceable from its initial position before fastening the terminal-equipped wire 50 to the stud bolt S to its fastened position after fastening the terminal-equipped wire 50 to the stud bolt S. Specifically, in its initial position, the detection rib 56 extends upward in a direction intersecting the left-right direction (more specifically, the left detection rib 56 extends diagonally upward and to the left, and the right detection rib 56 extends diagonally upward and to the right) (see Figures 4 and 5). In the fastened position, it is pressed down by the nut 60 when it is screwed onto the stud bolt S, causing it to bend downward from its initial position and extend along the left-right direction (see Figure 6). The detection rib 56 has the function of detecting the detection state of the terminal-equipped wire 50 to the stud bolt S.

As shown in Figures 3 and 5-6, the electric wire 52 is composed of a conductor core wire 58 and an insulating sheath 59 that surrounds the conductor core wire 58. The conductor core wire 58 may be a single wire or a stranded wire in which multiple conductors are twisted together.

<Nut 60>
The nut 60 will now be described. As shown in Figures 3 and 5 to 6, the nut 60 is integrally constructed from a main body 61 and a flange 62 positioned at the lower edge of the main body 61. The flange 62 extends radially outward from the main body 61 over its entire circumferential area. The nut 60 is a known nut and is not limited to the above, as long as it can realize the present invention.

<Fastening structure of the terminal-equipped electric wire 50>
The fastening structure of the terminal-equipped electric wire 50 will now be described. As shown in Figures 5 and 6, the stud bolt S of the electrical connection box 1 is inserted through the hole 55 of the terminal-equipped electric wire 50, and the bolt connection portion 54 and the busbar B are brought into adjacent contact in the vertical direction.

Next, the nut 60 is screwed onto the stud bolt S. During the screwing process, the flange portion 62 of the nut 60 contacts the detection rib 56 of the terminal-equipped wire 50 (see Figure 5). If the screwing of the nut 60 onto the stud bolt S continues in this state, the detection rib 56 is pressed by the nut 60 (flange portion 62) and begins to bend downward, extending in the left-right direction. Further screwing of the nut 60 onto the stud bolt S causes the detection rib 56 to bend completely, extending in the left-right direction (see Figure 6). This fastens the terminal-equipped wire 50 to the stud bolt S.

When the terminal-equipped wire 50 is fully fastened to the stud bolt S, the right-hand detection rib 56 is positioned within the gap 57, and the upper surface of the right-hand detection rib is approximately flush with the upper surface of the bolt connection portion 54 (see Figure 6). Similarly, the upper surface of the left-hand detection rib 56 is also approximately flush with the upper surface of the bolt connection portion 54 (see Figure 6). Thus, when the terminal-equipped wire 50 is sufficiently fastened to the stud bolt S, the detection rib 56 is no longer raised relative to the bolt connection portion 54 (i.e., it is tilted). In other words, the fastening status of the terminal-equipped wire 50 to the stud bolt S can be confirmed by visually observing the position of the detection rib 56. This allows for the management of the fastening status of the terminal-equipped wire to the stud bolt by visual inspection, without the need for a torque wrench or similar device.

Furthermore, by positioning the detection rib 56 in the gap 57 defined in the bolt connection portion 54 at the fastening position, it is possible to suppress the enlargement of the terminal-equipped wire 50, and consequently, the enlargement of the electrical connection box unit 100.

<Other forms>
Furthermore, the present invention is not limited to the embodiments described above, and can be modified, improved, etc., as appropriate. In addition, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited, as long as they can achieve the present invention.

For example, if the upper cover 30 is assembled to the frame 10 while the terminal-equipped wire 50 is not sufficiently fastened to the stud bolt S, the detection rib 56 may be configured to interfere with the upper cover 30. This prevents the electrical junction box unit 100 from being completed with insufficient fastening of the terminal-equipped wire 50 to the stud bolt S.

Here, the features of the embodiments of the electrical connection box unit, the fastening structure for the terminal-equipped wire, and the terminal-equipped wire according to the present invention, as described above, are briefly summarized in [1] to [5] below.

[1]
An electrical junction box (1) that houses electronic components and has stud bolts (S) that are electrically connected to the electronic components,
A wire (50) with a terminal is fastened to the stud bolt (S) and electrically connects the external equipment and the electrical connection box (1),
A nut (60) is screwed onto the stud bolt (S) so as to fasten the terminal-equipped electric wire (50) to the stud bolt (S),
An electrical junction box unit (100) equipped with,
The aforementioned wire with terminals (50)
It has a bolt connection portion (54) that is fastened and connected to the stud bolt (S),
The bolt connection portion (54) is,
A detection rib (56) is provided that can be displaced from an initial position before fastening the terminal-equipped wire (50) to the stud bolt (S) to the fastening position after fastening the terminal-equipped wire (50) to the stud bolt (S).
The aforementioned detection rib (56) is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion (54), and at the fastening position, it is pressed by the nut (60) when the nut (60) is screwed onto the stud bolt (S), causing it to bend from the initial position and extend along the extending direction.
Electrical junction box unit (100).

According to the electrical junction box unit with the configuration described in [1] above, a detection rib is provided at the bolt connection portion of the terminal-equipped wire. The detection rib is configured to be displaceable from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastened position after fastening. Specifically, in the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion. In the fastened position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from its initial position and extend along the extending direction. In other words, the fastening status of the terminal-equipped wire to the stud bolt can be confirmed by visually observing the state of the detection rib (whether it is in the fastened position or not). This allows for visual management of the fastening status of the terminal-equipped wire to the stud bolt without the need for a torque wrench or similar device.

[2]
In the electrical junction box unit (100) described in [1] above,
The aforementioned wire with terminals is (50),
It has an electric wire (52) and an L-shaped terminal (51) consisting of an electric wire connection part (53) and a bolt connection part (54) connected to the electric wire (52),
Electrical junction box unit (100).

According to the electrical junction box unit with the configuration described in [2] above, the present invention can also be realized with L-shaped terminals used to connect the electrical junction box to external equipment.

[3]
In the electrical junction box unit (100) described in [1] or [2] above,
In the bolt connection portion (54), a part of the bolt connection portion (54) is cut out to define a gap (57),
The detection rib (56) is positioned in the gap (57) at the fastening position.
Electrical junction box unit (100).

According to the electrical junction box unit with the configuration described in [3] above, the detection rib is positioned in the gap defined in the bolt connection portion at the fastening position, thereby suppressing the increase in the size of the terminal-equipped wire and, consequently, the overall size of the electrical junction box unit.

[4]
A fastening structure for a terminal wire to a stud bolt, comprising a stud bolt (S), a terminal wire (50) fastened to the stud bolt (S), and a nut (60) screwed onto the stud bolt (S),
The aforementioned wire with terminals (50)
It has a bolt connection portion (54) that is fastened and connected to the stud bolt (S),
The bolt connection portion (54) is,
A detection rib (56) is provided that can be displaced from an initial position before fastening the terminal-equipped wire (50) to the stud bolt (S) to the fastening position after fastening the terminal-equipped wire (50) to the stud bolt (S).
The aforementioned detection rib (56) is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion (54), and at the fastening position, it is pressed by the nut (60) when the nut (60) is screwed onto the stud bolt (S), causing it to bend from the initial position and extend along the extending direction.
Fastening structure for wires with terminals.

According to the terminal-equipped wire fastening structure of the configuration described in [4] above, the fastening status of the terminal-equipped wire to the stud bolt can be managed without using a torque wrench or the like by visually checking the orientation of the detection rib (whether or not it is in the fastening position).

[5]
A wire (50) with a terminal fastened to a stud bolt (S),
It has a bolt connection portion (54) that is fastened and connected to the stud bolt (S),
The bolt connection portion (54) is,
A detection rib (56) is provided that can be displaced from an initial position before fastening the terminal-equipped wire (50) to the stud bolt (S) to the fastening position after fastening the terminal-equipped wire (50) to the stud bolt (S).
The aforementioned detection rib (56) is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion (54), and at the fastening position, it is pressed by the nut (60) when the nut (60) is screwed onto the stud bolt (S), causing it to bend from the initial position and extend along the extending direction.
Electrical wire with terminals (50).

With the terminal-equipped wire configuration described in [5] above, the fastening status of the terminal-equipped wire to the stud bolt can be managed without using a torque wrench or similar tool by visually observing the orientation of the detection rib (whether or not it is in the fastening position).

1 Electrical junction box 10 Frame 20 Lower cover 30 Upper cover 40 Side cover 50 Wire with terminal 51 Terminal 52 Wire 53 Wire connection part 54 Bolt connection part 55 Hole 56 Detection rib 57 Gap 60 Nut 100 Electrical junction box unit B Bus bar S Stud bolt

Claims (5)

An electrical junction box having stud bolts that house electronic components and electrically connect to the electronic components,
A wire with terminals fastened to the aforementioned stud bolt, which electrically connects the external equipment and the aforementioned electrical junction box,
A nut is screwed onto the stud bolt to fasten the aforementioned terminal-equipped electric wire to the stud bolt,
An electrical junction box unit equipped with,
The aforementioned wire with terminals is
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
Electrical junction box unit. In the electrical junction box unit according to claim 1,
The aforementioned wire with terminals is
It comprises an electric wire, and an L-shaped terminal consisting of an electric wire connection part and a bolt connection part connected to the electric wire,
Electrical junction box unit. In the electrical junction box unit according to claim 1 or claim 2,
In the aforementioned bolt connection portion, a part of the bolt connection portion is cut out to define a gap,
The detection rib is positioned in the gap at the fastening position.
Electrical junction box unit. A fastening structure for a terminal-equipped electric wire to a stud bolt, comprising a stud bolt, an electric wire with a terminal fastened to the stud bolt, and a nut screwed onto the stud bolt,
The aforementioned wire with terminals is
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
Fastening structure for wires with terminals. A wire with terminals that is fastened to a stud bolt,
It has a bolt connection portion that is fastened and connected to the aforementioned stud bolt,
The bolt connection portion includes:
A detection rib is provided that can be displaced from an initial position before fastening the terminal-equipped wire to the stud bolt to a fastening position after fastening the terminal-equipped wire to the stud bolt.
The aforementioned detection rib is
At the initial position, it extends upward in a direction intersecting the extending direction of the bolt connection portion, and at the fastening position, it is pressed by the nut when the nut is screwed onto the stud bolt, causing it to bend from the initial position and extend along the extending direction.
Electrical wire with terminals.