vehicle

Abstract

To provide a vehicle protecting a high-voltage connector.SOLUTION: A vehicle includes: an electric drive unit; a suspension member; and a power supply high-voltage connector connected to the electric drive unit. The high-voltage connector is located on a facing surface facing the suspension member of the electric drive unit. A boss part projecting toward the suspension member side is formed on the facing surface of the electric drive unit. The boss part is structured so that a mount interposed between the electric drive unit and the suspension member can be mounted. The height of the projection of the boss part with respect to the electric drive unit is higher than the projection of the high-voltage connector with respect to the electric drive unit.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The technology disclosed in this specification relates to vehicles.

Background Art

[0002] Patent Document 1 discloses a vehicle capable of protecting the connector portion of a harness during a collision. Specifically, a boss portion is additionally arranged near the outlet portion of the connector. The boss portion protrudes to the rear side of the vehicle with respect to the outlet portion. By hitting the boss portion prior to the outlet portion of the connector during a vehicle collision, the outlet portion can be protected.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When additional protective members such as a boss portion are arranged, an increase in weight or deterioration in mountability may occur.

Means for Solving the Problems

[0005] According to the structure described in claim 1, a boss portion for attaching a mount for fixing an electric drive unit to a suspension member can be made to function as a protective member for a high - voltage connector. Since there is no need to additionally arrange a protective member, it is possible to protect the high - voltage connector without causing an increase in weight or deterioration in mountability.

Brief Description of the Drawings

[0006] [Figure 1] It is a left - side view of the rear motor module 10. [Figure 2] It is a top view of the rear motor module 10. [Figure 3] This is a top view of the rear motor module 10 during a rear-end collision. [Modes for carrying out the invention]

[0007] (Structure of rear motor module 10) The rear motor module 10 will be described with reference to Figures 1 and 2. Figure 1 is a left side view of the rear motor module 10. Figure 2 is a top view of the rear motor module 10. In the following, the positive X-axis in the coordinates shown in the figures will be referred to as the "rear" of the vehicle, and the opposite side as the "front" of the vehicle. The positive Z-axis will be referred to as the "top" of the vehicle, and the opposite side as the "bottom" of the vehicle. Furthermore, the positive Y-axis will be referred to as the "right" of the vehicle, and the opposite side as the "left" of the vehicle.

[0008] The rear motor module 10 is a device located behind the rear seats of the vehicle. The rear motor module 10 is fixed to the floor panel from below the vehicle. The rear motor module 10 drives the rear wheels (not shown) with power supplied from a battery (not shown). As shown in Figure 2, the rear motor module 10 has a substantially symmetrical shape in the left-right direction of the vehicle. The rear motor module 10 mainly comprises an electric drive unit 12, a rear suspension member 14, a high-voltage connector 15, and a high-voltage wire harness 16.

[0009] The rear suspension member 14 comprises two side members 14s, a front cross member 14f, and a rear cross member 14r. Each of the two side members 14s is connected to the front cross member 14f and the rear cross member 14r. The two side members 14s are positioned in the left-right direction of the vehicle of the electric drive unit 12. The two side members 14s extend along the front-rear direction of the vehicle. One side member 14s is paired with the other side member 14s and is symmetrical with respect to the other side member 14s in the left-right direction of the vehicle. Therefore, in the following, the pair of side members 14s may simply be referred to as side members 14s.

[0010] The side member 14s includes a front suspension mount 14m and a rear suspension mount 14n. Both the front suspension mount 14m and the rear suspension mount 14n have threaded sections in their respective centers. This allows the rear suspension member 14 to be fixed to the underside of the floor panel.

[0011] As shown in Figure 1, the side member 14s extends further forward from below the front suspension mount 14m, and at its front end extends downward to connect with the front cross member 14f. Also, as shown in Figure 2, the side member 14s extends in the vehicle's longitudinal direction from the vehicle's lateral direction of the electric drive unit 12, and at its rear end, it is inclined to widen in the vehicle's lateral direction towards the rear of the vehicle. The rear cross member 14r is connected to the bent portion of the side member 14s. The side member 14s extends further rearward than the rear cross member 14r, and a rear suspension mount 14n is provided at its rear end. The side member 14s is bent in the vehicle's lateral direction at its front end, and a front suspension mount 14m is provided at that end.

[0012] The electric drive unit 12 is a device that houses a motor for driving the vehicle and a power converter that converts the power supplied to the motor in a single housing. The electric drive unit 12 is sometimes called an e-accelerator. The electric drive unit 12 has a seat surface 12s that extends in the left-right direction of the vehicle. The seat surface 12s is located on the upper surface of the front end of the side member 14s. The seat surface 12s is fixed to the side member 14s by a front motor mount 12f. In addition, a rear motor mount 12r is provided in the center of the rear cross member 14r. The rear motor mount 12r is fastened to the rear surface of the electric drive unit 12. In other words, the electric drive unit 12 and the rear suspension member 14 are fixed at three points by two front motor mounts 12f and one rear motor mount 12r.

[0013] The electric drive unit 12 has a pair of opposing surfaces 12o facing the side member 14s. A pair of boss portions 12b are formed on each of the opposing surfaces 12o. The boss portions 12b protrude from the opposing surfaces 12o toward the side member 14s. The boss portions 12b are configured to allow the attachment of a motor mount (not shown) interposed between the electric drive unit 12 and the side member 14s. The structure and type of the motor mount are not particularly limited and may be, for example, a rubber mount.

[0014] The structure and formation method of the boss portion 12b may vary. In this embodiment, the boss portion 12b has a structure in which three cylindrical bosses are connected by wall-shaped ribs. The boss portion 12b is integrally formed with the case of the electric drive unit 12 by casting.

[0015] It is not necessary for a motor mount to be attached to the boss portion 12b. The electric drive unit 12 is a unit that is used in various vehicle models. Therefore, whether or not a motor mount is attached to the boss portion 12b will differ depending on the vehicle model. In this embodiment, the case in which a motor mount is not attached to the boss portion 12b is described.

[0016] A high-voltage connector 15 is connected to the opposing surface 12o on the left side of the vehicle. A high-voltage wire harness 16 is drawn out from the high-voltage connector 15. The high-voltage wire harness 16 is connected to a battery (not shown). This allows power to be supplied to the electric drive unit 12 via the high-voltage connector 15.

[0017] As shown in Figure 2, the protrusion height of the boss portion 12b relative to the electric drive unit 12 is defined as boss height H1. The protrusion height of the high-voltage connector 15 relative to the electric drive unit 12 is defined as connector height H2. Boss height H1 is higher than connector height H2. In other words, the boss portion 12b protrudes outward in the vehicle width direction from the high-voltage connector 15. There is also a gap between the tip of the boss portion 12b and the side member 14s.

[0018] As shown in FIG. 1, the boss portion 12b is disposed in proximity to the high-voltage connector 15. Also, when viewed from the left side of the vehicle, the high-voltage connector 15 and the boss portion 12b overlap with the side member 14s. That is, the high-voltage connector 15 and the boss portion 12b are disposed at positions where they may interfere with the side member 14s during a vehicle collision.

[0019] (Behavior during collision) Referring to FIG. 3, the behavior of the rear suspension member 14 and the electric drive unit 12 when a rear collision occurs in the left-rear portion of the vehicle will be described. FIG. 3 is a top view of the rear motor module 10, similar to FIG. 2. In FIG. 3, for ease of understanding, the side member 14s before the collision is shown by a dashed line, and the side member 14s after the collision is shown by a solid line.

[0020] As described above, the rear end of the side member 14s is located behind the vehicle relative to the rear cross member 14r. Therefore, when a rear vehicle collides from the left-rear of the vehicle, the rear vehicle interferes with the rear side mount 14n at the rear end of the side member 14s. An impact load f1 is applied to the side member 14s by the rear vehicle (see arrow f1 in FIG. 3). As a result, as shown by arrow Y1, the rear side mount 14n is displaced toward the front side of the vehicle.

[0021] As described above, the side member 14s is inclined so as to widen in the vehicle left-right direction toward the rear of the vehicle. For this reason, when the rear side mount 14n is displaced toward the front of the vehicle, deformation occurs so as to rotate with the connection portion between the side member 14s and the rear cross member 14r as a fulcrum. As a result, as shown by arrow Y2, the side member 14s located in the vicinity of the high-voltage connector 15 is deformed so as to move to the right side of the vehicle.

[0022] As described above, the boss portion 12b protrudes outward in the vehicle width direction from the high-voltage connector 15. Therefore, the side member 14s that has moved to the right side of the vehicle abuts against the boss portion 12b before abutting against the high-voltage connector 15. Thereby, it is possible to prevent the side member 14s from contacting the high-voltage connector 15 (see region R1). Since damage to the high-voltage connector 15 due to interference of the side member 14s can be prevented, generation of leakage current or the like can be suppressed.

[0023] (Effect) In order to protect the high-voltage connector 15 during a collision, the protective member needs to abut against the interference member before the high-voltage connector 15. Therefore, the shape of the protective member becomes larger than that of the high-voltage connector 15. However, if a dedicated protective member is additionally arranged, there is a risk of weight increase and deterioration of mountability. Therefore, in the technology of this specification, the boss portion 12b for attaching the motor mount can also function as a protective member for the high-voltage connector 15. That is, the mount fixing function and the connector protection function can be integrated into the boss portion 12b. Since there is no need to additionally arrange a dedicated protective member, it is possible to protect the high-voltage connector 15 without causing an increase in weight and deterioration of mountability.

[0024] (Modification) The vehicle mounting position of the electric drive unit 12 is not limited to the rear portion. The technology described in this specification can be applied regardless of the position where the electric drive unit 12 is mounted on the vehicle.

[0025] The shape of the boss portion 12b is not limited to a cylindrical shape and may be various. Also, the boss portion 12b may be a component separate from the electric drive unit 12.

Description of Reference Numerals

[0026] 10: Rear motor module 12: Electric drive unit 12b: Boss portion 12o: Opposing surface 14: Rear suspension member 15: High-voltage connector H1: Boss height H2: Connector height

Claims

[Claim 1] An electric drive unit, a suspension member, and a high-voltage connector for power supply connected to the electric drive unit, A vehicle equipped with, The high-voltage connector is located on the opposing surface of the electric drive unit that faces the suspension member, The opposing surface of the electric drive unit has a boss portion that protrudes toward the suspension member, and is configured to allow the attachment of a mount interposed between the electric drive unit and the suspension member. The protrusion height of the boss portion relative to the electric drive unit is higher than the protrusion height of the high-voltage connector relative to the electric drive unit. vehicle.

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