JP2024012059A - Fixing structure of wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing structure of a wiring harness, having a bracket and an electric connection box, and having an excellent general purpose.

SOLUTION: In a fixing structure of a wiring harness, a wiring harness 1 comprises: a bracket 10 having a fixing portion 17 to a fixing object; one or a plurality of electric connection boxes 20 attached to the bracket 10; and a sub harness 30 that is extended from one of the plurality of electric connection boxes 20. The bracket 10 includes: a plurality of attachment portions 12 that can attach the one or the plurality of electric connection boxes 20; and a locked part 13 having a common shape, provided to each of the plurality of attachment places 12. The one or plurality of electric connection boxes 20 includes the lock part 22 having a common shape corresponded to the locked part 13.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a wire harness fixing structure that includes a bracket that is fixed to a fixed object, one or more electrical connection boxes that are attached to the bracket, and subharnesses that extend from each of the one or more electrical connection boxes.

2. Description of the Related Art Conventionally, when wiring a wiring harness (that is, an electrical junction box, a sub-harness, etc.) to an automobile, the electrical junction box is sometimes fixed to the body frame of the automobile. For example, in one conventional electrical junction box, a fixing arm is provided extending from the outer wall of the electrical junction box, and this arm is fastened to the vehicle body frame with bolts. (For example, see Patent Document 1).

JP2022-14260A

In the above-described conventional electrical junction box, a fixing arm portion is provided on the electrical junction box for routing the wire harness (that is, fixing it to the vehicle body). However, in general, the shape of the vehicle body frame differs depending on the type and specifications of the vehicle in which the electrical junction box is installed, so with conventional electrical junction boxes, the electrical junction box has a special shape for each type and specification of the vehicle. I'll have to prepare. From the perspective of further increasing the productivity of electrical junction boxes and the workability when wiring (fixing) wiring harnesses using electrical junction boxes to automobiles, electrical junction boxes can be installed even if the types and specifications of automobiles are different. A wire harness fixing structure with excellent versatility is desired so that it can be shared.

One of the objects of the present invention is to provide a wire harness fixing structure with excellent versatility.

In order to achieve the above-mentioned object, the wire harness fixing structure according to the present invention has the following features.

A wire harness fixing structure comprising: a bracket having a fixing part to a fixing target; one or more electrical junction boxes attached to the bracket; and a subharness extending from each of the one or more electrical junction boxes. There it is,
Each of the one or more electrical connection boxes,
having a locking portion of a common shape for attachment to the bracket;
The bracket is
comprising a plurality of attachment locations to which the one or more of the electrical connection boxes can be attached, and a locked portion provided at each of the plurality of attachment locations and having a shape corresponding to the locking portion;
Must have a fixed structure for the wire harness.

According to the wire harness fixing structure according to the present invention, the bracket has a fixing site (for example, a bolt fastening hole) to a fixing object (for example, a vehicle body frame) and a plurality of attachment points for attaching an electrical connection box. has. On the other hand, one or more electrical connection boxes attached to the bracket have a lock portion having a common shape. A locked portion having a shape corresponding to the locking portion of the electrical connection box is provided at the plurality of attachment points of the bracket. Therefore, for example, it is possible to provide a lock part of a common shape to an electrical junction box with a universal shape (for example, a simple rectangular parallelepiped shape), and increase or decrease the number of electrical junction boxes attached to the bracket depending on the specifications of the automobile. It is possible to replace the electronic components stored in the electrical connection box. That is, the electrical connection box can be made more versatile. On the other hand, although the brackets will have different shapes depending on the specifications of the car, the impact on overall productivity is limited because the brackets do not require a structure that stores electronic components inside like an electrical junction box. It is true. In this way, the wire harness fixing structure of this configuration can configure various wire harnesses and fix the wire harnesses to a fixing target while making the electrical connection box more general-purpose. Therefore, the wire harness fixing structure of this configuration has excellent versatility.

The present invention has been briefly described above. Further, details of the present invention will become clearer by reading the detailed description described below with reference to the accompanying drawings.

FIG. 1 is a perspective view for explaining a wire harness fixing structure according to an embodiment of the present invention. FIG. 2 is a top view of the electrical connection box shown in FIG. 1. FIG. 3 is a top view of the bracket shown in FIG. 1. FIG. 4 is a top view showing a state in which the electrical connection box is attached to each of the two attachment locations of the bracket. FIG. 5 is a top view showing a state in which the electrical junction box is attached only to one of the two attachment locations of the bracket. FIG. 6 is a top view of the wire harness fixing structure according to the first modification. FIG. 7 is a top view of a wire harness fixing structure according to a second modification. FIG. 8 is a top view showing a state in which the electrical connection box is not attached to each of the plurality of attachment points of the bracket in the wire harness fixing structure according to the third modification. FIG. 9 is a top view showing a state in which electrical connection boxes are attached to each of a plurality of attachment locations of the bracket shown in FIG. 8.

<Embodiment>
Hereinafter, a fixing structure for a wire harness 1 according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the wire harness 1 used in this fixed structure includes one or more electrical junction boxes 20 attached to a bracket 10 and electric wires 30 extending from each of the one or more electrical junction boxes 20. Be prepared. This wire harness 1 is fixed to a fixed object, such as a vehicle body frame, via a bracket 10. Note that it may be considered that the wire harness 1 includes all of the bracket 10, the electrical connection box 20, and the electric wire 30.

Hereinafter, for convenience of explanation, "front", "rear", "left", "right", "upper", and "lower" will be defined as shown in FIG. 1 and the like. The front-back direction, the left-right direction, and the up-down direction are orthogonal to each other. In this example, the vertical direction corresponds to the mounting direction of the electrical junction box 20 to the bracket 10, and the "upper" side and the "lower" side respectively refer to the state in which the bracket 10 is fixed to the car body frame. It coincides with the "top" and "bottom" sides of the car. However, these directions are only determined for convenience of explanation, and the vertical direction does not necessarily correspond to the mounting direction, and the upper and lower sides do not necessarily correspond to the direction in which the bracket 10 is fixed to the vehicle body frame of the automobile. There is no need to correspond to the upper and lower sides of the vehicle in the condition. Hereinafter, the configuration of each component used in the fixing structure of the wire harness 1 will be explained in order.

First, the electrical connection box 20 will be explained. As shown in FIGS. 1 and 2, the electrical connection box 20 has a substantially rectangular parallelepiped-shaped resin housing that extends in the front-rear direction, left-right direction, and up-down direction. The casing of the electrical connection box 20 may be made of a single resin molded body or a combination of a plurality of resin molded bodies. The surface of the casing of the electrical connection box 20 is not provided with a portion for fixing electric wires, connectors, etc. (that is, an auxiliary attachment portion to be described later). The electrical connection box 20 is equipped with a plurality of types of electronic components 21 and the like for controlling the vehicle (see FIGS. 1 and 2).

The front surface (front-facing surface) and rear surface (rear-facing surface) of the electrical connection box 20 engage with locked portions 13 (13a, 13b) (see FIG. 3, etc.) of the bracket 10, which will be described later. A lock portion 22 is provided (see FIGS. 1 and 2). In this example, the lock part 22 is composed of a first lock part 22a provided on the front surface of the electrical connection box 20 and a second lock part 22b provided on the rear surface of the electrical connection box 20 (see FIG. reference). Although the structures of the first and second lock portions 22a and 22b are different from each other in this example, they may be the same.

A wire insertion portion 23 is provided at the lower right end of the front surface of the electrical connection box 20 (see FIGS. 1 and 2). From the wire insertion portion 23, a wire 30 (i.e., a sub-harness) electrically connected to the electronic components 21 etc. mounted on the electrical connection box 20 extends forward from the inside of the electrical connection box 20 to the outside. (See Figure 2).

Each of the housings of one or more electrical connection boxes 20 included in the wire harness 1 has a common shape of a substantially rectangular parallelepiped. Each of the one or more electrical junction boxes 20 included in the wire harness 1 can be attached to any of two attachment locations 12 (12a, 12b) (see FIG. 3) included in the bracket 10, which will be described later. Have different electrical circuit specifications.

Each of the one or more electrical connection boxes 20 (electrical connection boxes 20A, 20B) included in the wire harness 1 has a lock portion 22 (first lock portion 22a+second lock portion 22b) having a common shape. Each lock portion 22 (first lock portion 22a + second lock portion 22b) of one or more electrical connection boxes 20 that the wire harness 1 has is located at which of the two attachment points 12 (12a, 12b) that the bracket 10 has. It is also possible to engage with the locked portion 13 (13a, 13b) provided at the attachment point 12 of.

Next, the bracket 10 will be explained. The bracket 10 is a resin molded body, and as shown in FIGS. 1 and 3, has a substantially rectangular parallelepiped box-shaped main body 11 that extends in the front-rear direction, left-right direction, and up-down direction, and is open upward. As shown in FIG. 3, two mounting locations 12 are defined in the substantially rectangular parallelepiped hollow portion of the main body portion 11, and are arranged adjacent to each other in the left-right direction. Each of the two attachment points 12 has a common shape of a substantially rectangular parallelepiped to which the electrical connection box 20 can be attached. Hereinafter, when it is necessary to distinguish between the two attachment points 12, the left and right attachment points 12 will be referred to as "attachment point 12a" and "attachment point 12b," respectively.

Each attachment point 12 is provided with a locked portion 13 corresponding to the lock portion 22 of the electrical connection box 20 (see FIG. 3). In this example, the locked portion 13 includes a first locked portion 13a provided on the inner surface (rearward facing surface) of the front wall defining the main body portion 11 in correspondence with the first locked portion 22a; The second locking portion 13b is provided on the inner surface (front facing surface) of the rear wall defining the main body portion 11 in correspondence with the second locking portion 22b. Each attachment point 12 has a locked portion 13 (first locked portion 13a+second locked portion 13b) having a common shape.

The electrical connection box 20 is attached to the attachment location 12 from above, as shown in FIG. When the electrical connection box 20 is attached to the attachment point 12, the locked part 13 (first locked part 13a + second locked part 13b) and the lock part 22 (first locked part 22a + second locked part 22b) are connected to each other. The engagement prevents the electrical connection box 20 from separating (coming off) upward from the bracket 10 (main body portion 11).

At each attachment point 12, a concave portion 14 for inserting a wire is provided in a part of the front wall defining the main body portion 11 in a concave shape cut out downward, corresponding to the wire inserting portion 23 of the electrical junction box 20. (See Figures 1 and 3, etc.). When the electrical connection box 20 is attached to the attachment location 12, the base portion of the electric wire 30 extending forward from the wire insertion portion 23 of the electrical connection box 20 is accommodated in the wire insertion recess 14 (see FIG. 1). . The electric wire 30 extending from the electric wire insertion portion 23 is connected to a corresponding electrical component (not shown) mounted on the automobile.

As shown in FIGS. 1 and 3, auxiliary parts (for example, , electric wires, connectors, etc.) are provided. Since such an auxiliary attachment point 15 is provided on the bracket 10 side, as described above, there is no need for a section on the electrical connection box 20 side to fix electric wires, connectors, etc.

As shown in FIGS. 1, 3, etc., leg portions 16 extend integrally from a plurality of locations (in this example, two locations) on the outer surface of the main body portion 11 of the bracket 10. One or more bolt holes (through holes) 17 are formed at the tip of each leg 16 . When attaching the bracket 10 to the body frame of an automobile, the bracket 10 is fastened and fixed to the body frame of the automobile using bolts (not shown) inserted through these bolt holes 17. The configuration of each component used in the fixing structure of the wire harness 1 has been described above.

As described above, each of the one or more electrical junction boxes 20 included in the wire harness 1 can be attached to any of the two attachment locations 12a and 12b (see FIG. 3) included in the bracket 10, while being attached to each other. Have different electrical circuit specifications. Therefore, for example, the electrical connection box 20 can be prepared in advance for each specific system (specification) of an automobile to which the wire harness 1 is applied. That is, each of the one or more electrical connection boxes 20 may store electronic components 21 corresponding to electrical components (not shown) that implement a specific system of a vehicle to which the wire harness 1 is applied. In other words, the electric wires 30 extending from each of the one or more electrical connection boxes 20 may be connected to electrical components that realize a specific system of a vehicle to which the wire harness 1 is applied.

Specifically, for example, as the electrical junction box 20, there is a standard electrical junction box 20A corresponding to electrical components related to equipment that is standard equipment on a vehicle (hereinafter referred to as "standard electrical component"), and a standard electrical junction box 20A that corresponds to electrical components related to equipment standardly equipped on a vehicle. A case is assumed in which an optional electrical connection box 20B corresponding to electrical equipment (hereinafter referred to as "optional electrical equipment") related to equipment installed in the equipment is prepared (see FIGS. 4 and 5). Standard electrical components include, for example, electrical components used in engine-spec automobiles, and optional electrical components include, for example, electrical components used in hybrid-spec automobiles.

In this case, the standard electrical junction box 20A is attached to one of the two mounting locations 12a, 12b, and the corresponding optional electrical junction box 20B is attached to the other of the two mounting locations 12a, 12b depending on the optional electrical equipment selected. can be attached to. In the example shown in FIG. 4, the standard electrical connection box 20A is attached to the attachment point 12a, and the optional electrical connection box 20B corresponding to the selected optional electrical component is attached to the attachment point 12b. In the example shown in FIG. 5, the standard electrical junction box 20A is attached to the attachment location 12a, while the optional electrical junction box 20B is not attached because no optional electrical equipment is installed. The electric wire 30 extending from the standard electrical connection box 20A is connected to the standard electrical component, and the electric wire 30 extending from the optional electrical connection box 20B is connected to the selected optional electrical component.

In this way, it is only necessary to add a corresponding optional electrical connection box 20B to the wire harness 1 depending on the optional electrical equipment selected. This eliminates the need for electrical wires and the like (so-called disposable circuits) to be preliminarily installed in the wire harness 1 regardless of the presence or absence of optional electrical equipment.

Furthermore, instead of preparing the electrical connection box 20 for each vehicle system (specification), the electrical connection box 20 can be prepared in advance for each specific area of the vehicle to which the wire harness 1 is applied. That is, each of the one or more electrical connection boxes 20 may store electronic components 21 corresponding to electrical components (not shown) installed in a specific area of the automobile to which the wire harness 1 is applied. . In other words, the electric wires 30 extending from each of the one or more electrical connection boxes 20 may be connected to electrical components installed in a specific area of the automobile to which the wire harness 1 is applied.

This allows the electric wires 30 to be made independent for each specific area of the vehicle. Therefore, in addition to facilitating the wiring work of the electric wire 30, if a problem occurs in the electric wire 30 corresponding to a specific area, only that electric wire 30 needs to be repaired or replaced, so the wire harness 1 Improves maintainability. Moreover, if the electrical components installed in a specific area are the same, the same electric wire 30 can be used even if the vehicle model is different, so the versatility of the wire harness 1 can be increased.

<Action/Effect>
As described above, according to the wire harness 1 according to the embodiment of the present invention, the bracket 10 connects the fixing part (for example, the bolt hole 17 for bolt fastening) to the fixing object (for example, the vehicle body frame) and the electrical connection box 20. It has a plurality of attachment points 12 for attachment. On the other hand, one or more electrical connection boxes 20 attached to the bracket 10 have lock portions 22 having a common shape. A locked portion 13 having a shape corresponding to the locking portion 22 of the electrical connection box 20 is provided at the plurality of attachment points 12 of the bracket 10 . Therefore, for example, the lock portion 22 of a common shape is provided in the electrical junction box 20 of a general-purpose shape (for example, a simple rectangular parallelepiped shape), and the number of electrical junction boxes 20 to be attached to the bracket 10 can be adjusted depending on the specifications of the automobile. It is possible to increase or decrease the number of electronic components stored in the electrical connection box 20, or to replace the electronic components stored in the electrical connection box 20. That is, the electrical connection box 20 can be made more versatile. On the other hand, although the bracket 10 will have a different shape depending on the specifications of the automobile, the bracket 10 does not require a structure for storing electronic components inside like the electrical junction box 20, so it has a negative impact on overall productivity. Impact is limited. In this manner, the wire harness 1 fixing structure of this configuration can configure various wire harnesses 1 and fix the wire harness 1 to a fixing target while making the electrical connection box 20 general-purpose. Therefore, the fixing structure of the wire harness 1 having this configuration has excellent versatility.

Furthermore, since the main body portion 11 of the bracket 10 has a box-like shape, the mounting portion 12 of the electrical junction box 20 is provided inside the bracket 10 (main body portion 11) to protect the electrical junction box 20, and the bracket 10 An auxiliary attachment point 15 for fixing other electric wires, connectors, etc. can be provided on the outside.

<Other forms>
Note that the present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiments are arbitrary as long as the present invention can be achieved, and are not limited.

In the embodiment described above, the main body portion 11 of the bracket 10 has a box-like shape with the attachment portion 12 inside (hollow portion). On the other hand, as shown in FIGS. 6 and 7, the main body portion 11 of the bracket 10 may have a rod-like shape with the attachment portion 12 outside. In this case, the rod-shaped main body 11 may be made of metal or resin. In the first modification shown in FIG. 6, the main body 11 has a rod-like shape extending linearly in the front-rear direction, and in the second modification shown in FIG. 7, the main body 11 has a curved shape in the left-right direction. However, it has a rod-like shape that extends in the front-rear direction.

In the example shown in FIGS. 6 and 7, the leg portion 16 is omitted, and bolts (not shown) for fastening and fixing the bracket 10 to the vehicle body frame are inserted into multiple locations in the longitudinal direction of the rod-shaped main body portion 11. Bolt holes 17 are formed respectively. Attachment locations 12 (12a, 12b, 12c) to which the electrical connection box 20 can be attached are provided at a plurality of locations (three locations) on the left and right side surfaces of the rod-shaped main body portion 11, respectively. Each attachment point 12 (12a, 12b, 12c) is provided with a lock portion 22 having a common shape that each of the plurality (three) electrical connection boxes 20 (20A, 20B, 20C) of the wire harness 1 has. , a locked portion 13 having a common shape is provided. An electric wire 40 (an electric wire different from the electric wire 30 extending from each electrical junction box 20) extending along the rod-shaped main body 11 is attached to a predetermined fixing portion (not shown) provided on the main body 11. omitted).

Each of the three electrical junction boxes 20 (20A, 20B, 20C) that the wire harness 1 has can be attached to any of the three attachment points 12 (12a, 12b, 12c) that the bracket 10 has, while each Have different electrical circuit specifications. The lock portion 22 of each of the three electrical junction boxes 20 (20A, 20B, 20C) of the wire harness 1 is attached to which of the three attachment points 12 (12a, 12b, 12c) of the bracket 10. It is also possible to engage with the provided locked portion 13.

Each electrical connection box 20 is attached to the corresponding attachment point 12 from the side (left side or right side). When the electrical junction box 20 is attached to the bracket 10, there are no members such as walls around the electrical junction box 20, so the degree of freedom in the shape of the electrical junction box 20 is improved.

As shown in FIGS. 6 and 7, the shape of the main body portion 11 of the bracket 10 is rod-shaped, so that the shape of the bracket 10 itself can be simplified. Furthermore, while providing a mounting location 12 for the electrical junction box 20 at a predetermined position on the side surface of the main body 11 of the bracket 10, other electric wires, connectors, etc. can be fixed at other positions (side surface) of the main body 11 of the bracket 10. An auxiliary attachment point 15 can be provided (see FIG. 7).

Furthermore, in the embodiment described above, each of the housings of the plurality of electrical connection boxes 20 included in the wire harness 1 has a common shape of a substantially rectangular parallelepiped of the same size, and correspondingly, Each of the plurality of attachment points 12 of the main body portion 11 has a common shape of a substantially rectangular parallelepiped of the same size. On the other hand, as in the third modification shown in FIGS. 8 and 9, each of the housings of the plurality of electrical connection boxes 20 included in the wire harness 1 has a size corresponding to the number of electronic components that can be stored. Correspondingly, each of the plurality of attachment points 12 of the main body 11 of the bracket 10 has a substantially rectangular parallelepiped shape having a size corresponding to the size of the housing of the corresponding electrical junction box 20. It may have a substantially rectangular parallelepiped shape.

Specifically, in the example shown in FIGS. 8 and 9, the wire harness 1 includes, as a plurality of electrical connection boxes 20, an electrical connection box 20A that can store 10 electronic components, and an electrical connection box 20A that can store 6 electronic components. It has an electrical connection box 20B that can store five electronic components, and an electrical connection box 20C that can store five electronic components. The housing of the electrical junction box 20A is larger than the housing of the electrical junction box 20B, and the housing of the electrical junction box 20B is larger than the housing of the electrical junction box 20C. Each of the plurality of electrical connection boxes 20 (20A, 20B, 20C) can configure electrical circuits with different specifications from each other. The main body 11 of the bracket 10 has two attachment points 12a corresponding to the electrical connection box 20A, two attachment points 12b corresponding to the electrical connection box 20B, and two attachment points 12b corresponding to the electrical connection box 20C. It has six attachment points 12c. The attachment point 12a is larger than the attachment point 12b, and the attachment point 12b is larger than the attachment point 12c. The two attachment points 12a are arranged adjacent to each other in the left-right direction, and the two attachment points 12b are arranged adjacent to each other in the left-right direction on the right side of the right attachment point 12a. , the six attachment points 12c are arranged adjacent to the rear side of the two attachment points 12a so as to be adjacent to each other in the left-right direction and the front-back direction.

Each of the plurality of electrical connection boxes 20 (20A, 20B, 20C) included in the wire harness 1 has a lock portion 22 of a common shape, and correspondingly, each attachment point 12 (12a, 12b, 12c) has a lock portion 22 having a common shape. , a locked portion 13 having a common shape is provided. The electrical junction box 20A can be attached to any of the two attachment locations 12a, the electrical junction box 20B can be attached to any of the two attachment locations 12b, and the electrical junction box 20C can be attached to any of the six attachment locations 12c. It can also be installed. The lock portion 22 of the electrical connection box 20A can engage with a locked portion 13 provided at any of the two attachment points 12a of the bracket 10. The lock portion 22 of the electrical connection box 20B can engage with a locked portion 13 provided at any of the two attachment points 12b of the bracket 10. The lock portion 22 of the electrical connection box 20C can engage with the locked portion 13 provided at any of the six attachment points 12c of the bracket 10.

In the example shown in FIG. 9, electrical junction boxes 20A are attached to all two attachment locations 12a, electrical junction boxes 20B are attached to all two attachment locations 12b, and electrical junction boxes 20A are attached to all six attachment locations 12c. 20C is installed. However, depending on the specifications of the automobile, the electrical junction box 20A may be attached to only some of the two attachment points 12a, or the electrical junction box 20A may not be attached to either of the two attachment points 12a. good. The electrical connection box 20B may be attached to only a part of the two attachment locations 12b, or the electrical connection box 20B may not be attached to any of the two attachment locations 12b. The electrical connection box 20C may be attached to only some of the six attachment locations 12c, or the electrical connection box 20C may not be attached to any of the six attachment locations 12c.

As shown in FIG. 9, in the internal space of the bracket 10, a cavity, etc., in which various relays, connectors, etc. can be attached, is provided at a location different from each attachment location 12 (12a, 12b, 12c). may be provided.

In the example shown in FIGS. 8 and 9, by selecting and using an electrical junction box 20 of an appropriate size according to the number of electronic components that can be stored, the electrical junction box can be attached to the bracket 10 for each automobile specification. In addition to being able to increase or decrease the number of electrical connection boxes 20 and replace the electronic components that can be stored in the electrical connection box 20, the space inside the bracket 10 can be used rationally. Thereby, the versatility of the fixing structure of the wire harness 1 can be further improved.

Here, the features of the embodiment of the fixing structure for the wire harness 1 according to the present invention described above will be briefly summarized and listed below in [1] to [7].

[1]
A bracket (10) having a fixing part (17) to a fixing target, one or more electrical junction boxes (20) attached to the bracket (10), and one or more electrical junction boxes (20). A fixing structure for a wire harness (1) comprising sub-harnesses (30) extending from each sub-harness,
Each of the one or more electrical connection boxes (20)
having a lock part (22) of a common shape for attachment to the bracket (10);
The bracket (10) is
A plurality of attachment points (12) to which the one or more of the electrical connection boxes (20) can be attached, and a shape corresponding to the lock portion (22) provided at each of the plurality of attachment points (12). A locked portion (13) of
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [1] above, the bracket has a fixing part (for example, a hole for bolt fastening) to a fixing object (for example, a vehicle body frame) and a plurality of holes for attaching an electrical connection box. It has a mounting point. On the other hand, one or more electrical connection boxes attached to the bracket have a lock portion having a common shape. A locked portion having a shape corresponding to the locking portion of the electrical connection box is provided at the plurality of attachment points of the bracket. Therefore, for example, it is possible to provide a lock part of a common shape to an electrical junction box with a universal shape (for example, a simple rectangular parallelepiped shape), and increase or decrease the number of electrical junction boxes attached to the bracket depending on the specifications of the automobile. It is possible to replace the electronic components stored in the electrical connection box. That is, the electrical connection box can be made more versatile. On the other hand, although the brackets will have different shapes depending on the specifications of the car, the impact on overall productivity is limited because the brackets do not require a structure that stores electronic components inside like an electrical junction box. It is true. In this way, the wire harness fixing structure of this configuration can configure a variety of wire harnesses and fix the wire harness to a fixing target while making the electrical connection box more general-purpose. Therefore, the wire harness fixing structure of this configuration has excellent versatility.

[2]
In the fixing structure of the wire harness (1) according to [1] above,
Each of the one or more electrical connection boxes (20)
storing electronic components (21) corresponding to electrical components installed in a specific area of a vehicle to which the fixed structure is applied;
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [2] above, the sub-harnesses can be made independent for each specific area of the vehicle. This not only simplifies wiring work, but also allows maintenance of wiring harnesses, as if a problem occurs in a sub-harness that corresponds to a specific area, only that sub-harness needs to be repaired or replaced. You can enhance your sexuality. Furthermore, as long as the electrical components installed in a specific area are the same, the same sub-harness can be used even if the vehicle model is different, increasing the versatility of the wire harness fixing structure.

[3]
In the fixing structure of the wire harness (1) according to [1] above,
Each of the one or more electrical connection boxes (20)
storing electronic components (21) corresponding to electrical components that realize a specific system of a vehicle to which the fixed structure is applied;
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [3] above, the sub-harnesses can be made independent for each specific system of the vehicle. This improves the maintainability and versatility of the wire harness. Furthermore, the expandability of the wire harness is also improved. Specifically, for example, a standard electrical connection box that corresponds to electrical components related to equipment that is standardly equipped on a vehicle, and an optional electrical connection box that corresponds to electrical components that are associated with equipment that is selectively equipped on a vehicle. If the box and are configured separately, a corresponding optional electrical connection box can be added to the wire harness depending on the optional electrical equipment selected. This eliminates the need for electrical wires, etc. (so-called disposable circuits) to be preliminarily installed in the wire harness, regardless of the presence or absence of optional electrical equipment.

[4]
In the fixing structure of the wire harness (1) according to [1] above,
The bracket (10) is
having a box-like shape having the plurality of attachment points (12) inside;
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [4] above, the shape of the bracket is box-like, so that the mounting location for the electrical junction box is provided inside the bracket to protect the electrical junction box, and the bracket is A fixing part for fixing other electric wires, connectors, etc. can be provided outside.

[5]
In the fixing structure of the wire harness (1) according to [1] above,
The bracket (10) is
having a rod-like shape having the plurality of attachment points (12) on the outside;
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [5] above, the shape of the bracket itself can be simplified because the shape of the bracket is rod-like. Further, while providing a mounting location for the electrical junction box at a predetermined position on the bracket, it is possible to provide a fixing location for fixing other electric wires, connectors, etc. at other locations on the bracket.

[6]
In the fixing structure of the wire harness (1) according to [1] above,
The bracket (10) is
further comprising an auxiliary attachment point (15) to which an auxiliary component different from the electrical connection box (20) can be attached at a location different from the plurality of attachment locations (12);
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [6] above, by providing an auxiliary attachment point on the bracket, the expandability of the wire harness can be further improved without complicating the shape of the electrical connection box.

[7]
In the fixing structure of the wire harness (1) according to [1] above,
Each of the one or more electrical connection boxes (20)
The electrical connection box (20) has a size corresponding to the number of electronic components that can be stored in the electrical connection box (20).
Fixed structure of wire harness (1).

According to the wire harness fixing structure configured in [7] above, by selecting and using an appropriate electrical junction box according to the number of electronic components that can be stored in the electrical junction box, according to the specifications of the automobile, In addition to being able to increase or decrease the number of electrical junction boxes attached to the bracket and replace the electronic components stored in the electrical junction box, the space inside the bracket can be used rationally. Thereby, the versatility of the wire harness fixing structure can be further improved.

1 Wire harness 10 Bracket 12 Mounting location 13 Locked part 15 Auxiliary mounting location 17 Bolt hole (fixed location)
20 Electrical connection box 21 Electronic components 22 Lock part 30 Electric wire (subharness)

Claims (7)

A wire harness fixing structure comprising: a bracket having a fixing part to a fixing target; one or more electrical junction boxes attached to the bracket; and a subharness extending from each of the one or more electrical junction boxes. There it is,
Each of the one or more electrical connection boxes,
having a locking portion of a common shape for attachment to the bracket;
The bracket is
comprising a plurality of attachment points to which the one or more of the electrical connection boxes can be attached, and a locked portion provided at each of the plurality of attachment points and having a shape corresponding to the locking portion;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
Each of the one or more electrical connection boxes,
storing electronic components corresponding to electrical components installed in a specific area of the vehicle to which the fixed structure is applied;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
Each of the one or more electrical connection boxes,
storing electronic components corresponding to electrical components that realize a specific system of a vehicle to which the fixed structure is applied;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
The bracket is
having a box-like shape having the plurality of attachment points therein;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
The bracket is
having a rod-like shape having the plurality of attachment points externally;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
The bracket is
further comprising an auxiliary attachment point to which an auxiliary component different from the electrical connection box can be attached at a location different from the plurality of attachment locations;
Fixed structure of wire harness. The wire harness fixing structure according to claim 1,
Each of the one or more electrical connection boxes,
having a size corresponding to the number of electronic components that can be stored in the electrical connection box;
Fixed structure of wire harness.

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