JP7615674B2 - Layout in the motor room - Google Patents

Description

The present invention relates to an arrangement structure within a motor room.

Patent document 1 discloses a mounting structure for a power control device that can prevent the power control device from interfering with other mounted devices and preventing damage to the power control device, etc., even in the event of a vehicle collision, etc.

Specifically, it is disclosed that even if a collision occurs between the vehicle and an obstacle (collision barrier 30), the impact on the power cable 17 extending from the PCU case 13 is suppressed by ensuring space to accommodate the power cable 17 (see paragraphs [0004] to [0005]).

JP 2012-144227 A

However, the above-mentioned conventional technology has a problem in that if an impact occurs that makes it impossible to secure the above-mentioned storage space (for example, if the dash cross member 26 is deformed toward the rear of the vehicle), the power cable 17 may be pinched between the dash panel 22 and the PCU case 13, resulting in damage to the power cable 17.

The present invention was made in consideration of the above problems, and aims to provide an arrangement structure in a motor room that can prevent the harness from being pinched between the frame and surrounding components even if the frame moves due to a vehicle collision.

The layout structure in a motor room according to one embodiment includes a frame structure for mounting electrical equipment in the motor room of a vehicle, a harness connected to the electrical equipment, and a partition wall separating the motor room from the passenger compartment, the frame structure having a first frame facing the partition wall, and the harness arranged on the first frame so as to run along the first frame.

FIG. 1 is a plan view of an example of an arrangement structure in a motor room 1 according to an embodiment. FIG. 2 is a plan view of an example of a main part of an arrangement structure in the motor room 1 according to one embodiment. FIG. 3 is a plan view of an example of a main part of an arrangement structure in the motor room 1 according to one embodiment. FIG. 4 is a perspective view of an example of a main part of an arrangement structure in the motor room 1 according to one embodiment.

A preferred embodiment of the present invention will be described in detail below with reference to the attached drawings. In the following description of the drawings, the same or similar parts are given the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratios of the dimensions may differ from the actual ones. Therefore, the specific dimensions should be determined with reference to the following description. Furthermore, the drawings may include parts with different dimensional relationships and ratios. In this specification and drawings, elements that have substantially the same functions and configurations are given the same reference numerals to avoid duplicated explanations, and elements that are not directly related to the present invention are not illustrated.

Below, the layout structure within the motor room 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 4.

As shown in Figures 1 and 2, the layout structure in the motor room 1 according to this embodiment includes a frame structure 10, a harness 20, a bulkhead 30, an auxiliary battery 3, an inverter 4, and electrical equipment 5. The inverter 4 is placed above the electrical equipment 5.

As shown in Figures 1 to 3, the harness 20 is configured to be connected to the auxiliary battery 3, the inverter 4, and the electrical equipment 5. Figure 3 is a diagram in which the inverter 4 has been removed from Figure 2. The harness 20 is configured to exchange signals between the auxiliary battery 3, the inverter 4, and the electrical equipment 5, and to supply power to the auxiliary battery 3, the inverter 4, and the electrical equipment 5.

As shown in FIG. 1, the partition wall 30 is configured to separate the motor room 1 from the passenger compartment 2.

The auxiliary battery 3 is configured to serve as a power source for the inverter 4 and the control device in the electrical equipment 5.

The inverter 4 is configured to convert DC current to AC current and adjust the frequency to drive a motor (not shown) in accordance with the vehicle speed.

The electric device (charger/converter) 5 is configured to convert AC current supplied from outside the vehicle into DC current to charge the driving battery, and to reduce the high voltage of the driving battery to charge the auxiliary battery 3.

The frame structure 10 is configured so that electrical equipment 5 can be attached to the motor room 1 of the vehicle. As shown in Figures 1 to 3, the frame structure 10 has a first frame 12. Here, the first frame 12 is disposed so as to face the partition wall 30, as shown in Figure 1.

As shown in FIG. 2, the harness 20 is disposed on the first frame 12 so as to be aligned with the first frame 12. Specifically, the harness 20 is attached to the first frame 12 by the harness attachment portion 20A shown in FIG. 3.

With this configuration, the harness 20 is attached to the first frame 12, so that even if the vehicle is hit from the outside, the harness 20 is prevented from being pinched between the frame structure 10 and the bulkhead 30, and damage to the harness 20 is reduced.

As shown in Figures 1 to 4, the frame structure 10 may further include a main frame 11 that is disposed forward of the first frame 12.

As shown in Figures 1, 3, and 4, the main frame 11 is composed of a pair of first members 11A extending along the partition wall 30 and the horizontal portion 12A (described later), and a pair of second members 11B extending to connect the first members 11A.

Also, as shown in FIG. 3, the first frame 12 may have a horizontal portion 12A and an extension portion 12B.

As shown in Figures 1 and 3, the horizontal portion 12A is arranged to extend along the partition wall 30.

As shown in FIG. 3, the extension portion 12B is arranged to extend from the main frame 11 to the horizontal portion 12A.

With this configuration, when the vehicle is hit from the outside and the frame structure 10 comes into contact with the bulkhead 30, the first frame 12 comes into contact with the bulkhead 30 via the horizontal portion 12A, preventing the first frame 12 from hitting the bulkhead 30 locally, suppressing the frame structure 10 from entering the vehicle interior 2, and also suppressing deformation of the first frame 12 and the bulkhead 30.

In addition, with this configuration, the harness 20 is positioned far from the exterior of the vehicle, making it possible to prevent the harness 20 from colliding with other components and being damaged during a collision.

As shown in FIG. 3, the front end 12E of the extension 12B faces the front of the vehicle and is positioned perpendicular to the main frame 11, which extends in the vehicle width direction.

With this configuration, when the vehicle is hit from the outside and the first frame 12 hits the bulkhead 30, the front end 12E of the extension 12B is perpendicular to the main frame 11 in the fore-and-aft direction of the vehicle, so that local deformation of the front end 12E of the first frame 12 can be suppressed.

Here, when the front end 12E of the extension 12B is connected diagonally to the main frame 11 in the vehicle longitudinal direction, there is a risk that the front end 12E of the extension 12B of the first frame 12 may be locally deformed due to contact with the bulkhead 30, but the above-mentioned configuration can reduce this risk.

The electrical equipment 5 to which the harness 20 is connected is configured to be mounted on the frame structure 10, as shown in Figures 3 and 4.

Generally, when an external impact is applied to the vehicle, the external impact is applied to the electrical equipment 5 attached to the frame structure 10, and there is a risk that the electrical equipment 5 will move rearward. With the above-described configuration, even if the electrical equipment 5 comes into contact with the harness 20 in such a case, the electrical equipment 5 will push the harness 20, and the harness 20 will be able to move between the first frame 12 and the bulkhead 30, as there is a gap between the harness 20 and the bulkhead 30, thereby suppressing damage to the harness 20.

Furthermore, as shown in FIG. 4, the harness 20 is arranged to extend laterally (i.e., in the vehicle width direction) from the side of the electric device 5 and then extend rearward (i.e., in the vehicle front-rear direction). Specifically, as shown in FIG. 4, the harness 20 is configured to extend rightward from the right side of the electric device 5 and then extend rearward.

With this configuration, the connection point of the harness 20 to the electrical device 5 does not face the bulkhead 30. Therefore, if an external impact causes the electrical device 5 to be displaced toward the bulkhead 30 together with the harness 20, the harness 20 extending from the electrical device 5 toward the bulkhead 30 will deform and bulge to the side, thereby preventing damage to the harness 20.

Here, if the connection point of the harness 20 to the electrical equipment 5 is on the surface of the electrical equipment 5 facing the bulkhead 30 (i.e., the surface of the electrical equipment 5 facing the rear of the vehicle), the harness 20 is likely to be damaged. The reason for this is that the harness 20 extends from the surface of the electrical equipment 5 toward the bulkhead, and the connection point of the harness 20 to the electrical equipment 5 also faces the bulkhead 30. In such a case, if the electrical equipment 5 is pushed inside the vehicle due to an external impact, the connection point of the harness 20 to the electrical equipment 5 will be subjected to a force that bends it sideways or up and down, and there is a risk that such connection point will be damaged.

As shown in FIG. 3, the front end 12E of the first frame 12 is butted against and connected to the main frame 11.

With this configuration, if the frame structure 10 is pushed back by an external collision and the bulkhead 30 collides with the first frame 12, the impact received by the first frame 12 can also be received by the main frame 11, suppressing deformation of the first frame 12 and suppressing damage to the harness 20.

Although the present invention has been described in detail using the above-mentioned embodiment, it is clear to those skilled in the art that the present invention is not limited to the embodiment described in this specification. The present invention can be implemented in modified and altered forms without departing from the spirit and scope of the present invention as defined by the claims. Therefore, the description in this specification is intended to be illustrative and does not have any limiting meaning on the present invention.

This embodiment provides an arrangement structure within the motor room 1 that can prevent the harness 20 from being pinched between the frame and surrounding components even if the frame moves due to a vehicle collision.

Reference Signs List 1...motor room 2...vehicle compartment 3...auxiliary battery 4...inverter 5...electrical device 10...frame structure 11...main frame 11A...first member 11B...second member 12...first frame 12A...horizontal portion 12B...extension portion 12E...front end portion of first frame 20...harness 20A...harness mounting portion 30...partition wall

Claims (4)

a frame structure for mounting an electric device and an auxiliary battery serving as a power source for a control device in the electric device in a motor room of a vehicle;
a harness connected to the electric device and the auxiliary battery;
a partition wall separating the motor room from a vehicle interior,
the auxiliary battery is disposed in a vehicle width direction relative to the electric device,
the frame structure includes a first frame facing the partition wall,
The harness extends laterally from a side of the electric device, and then extends rearward, and is disposed on the first frame so as to extend along the first frame. The frame structure further includes a main frame disposed forward of the first frame,
The first frame is
A horizontal portion extending along the partition wall;
The arrangement structure in the motor room according to claim 1 , further comprising an extension portion extending from the main frame to the horizontal portion. The arrangement structure in the motor room according to claim 2 , wherein a front end of the extension portion is perpendicular to the main frame. The motor room arrangement structure according to claim 1, in which the harness extends laterally from the side of the electrical equipment and then extends rearward.

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