Mounting structure of junction box of vehicle

Abstract

The utility model provides a kind of in the load to junction box, the junction box of vehicle is carried structure of the protection junction box.This junction box of vehicle's carrying structure has metal sheet (30), the metal sheet (30) is opposite with junction box 20 in vehicle front-rear direction.Metal sheet (30) has: first portion (41), it is face to face with junction box 20;Second portion (42) is extended to the side opposite to junction box (20) at compared with first portion (41) on the top of vehicle.

Description

Technical Field

[0001] This specification discloses a mounting structure for a junction box in a vehicle. Background Technology

[0002] Hybrid electric vehicles and electric vehicles, which are equipped with electric motors for vehicle operation, are known. These electric motors are driven by electricity output from a battery pack. Patent Document 1 discloses a vehicle equipped with a battery pack in which the junction box is adjacent to the battery module.

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2006-228526 Utility Model Content

[0006] The problem to be solved by the utility model

[0007] An improved structure for protecting the junction box under loads directed toward it is desired.

[0008] This specification discloses a mounting structure for a vehicle's junction box that can protect the junction box from loads oriented toward it.

[0009] Methods for solving problems

[0010] The vehicle junction box mounting structure disclosed in this specification is characterized by having a metal plate facing the junction box in the vehicle's longitudinal direction. The metal plate has: a first portion facing the junction box; and a second portion extending towards the opposite side of the junction box from above the vehicle, relative to the first portion.

[0011] According to this structure, the first and second parts of the metal plate can bear the load from the front-rear direction or the side of the vehicle toward the junction box, thereby suppressing the deformation of the junction box.

[0012] In the junction box mounting structure of the vehicle disclosed herein, the metal plate may also be part of a device housing in which the junction box is disposed.

[0013] Effects of the utility model

[0014] According to the technology disclosed in this specification, the junction box can be protected from loads directed toward it. Attached Figure Description

[0015] Figure 1 This is a schematic top view of the equipment box and battery pack.

[0016] Figure 2 For along Figure 1 A cross-sectional view of the equipment box for the AA line.

[0017] Figure 3 A perspective view showing a portion of the equipment enclosure. Detailed Implementation

[0018] The embodiments will now be described with reference to the accompanying drawings. In all the drawings, identical symbols are used for equivalent elements, and repeated descriptions are omitted. In the following description, unless otherwise specified, terms indicating directions such as front, back, left, right, up, and down refer to directions and orientations related to the vehicle. In the various drawings described below, the arrow marked FR indicates forward, the arrow marked UP indicates upward, and the arrow marked LH indicates left.

[0019] Figure 1 The diagram shows a schematic top view of the equipment box 14 and battery pack 16. The equipment box 14 and battery pack 16 are mounted on a vehicle 10, such as an automobile. The vehicle 10 is, for example, a hybrid electric vehicle, a plug-in hybrid electric vehicle, or an electric vehicle. The vehicle 10 has an electric motor (not shown) for driving, and supplies power to the electric motor from the battery pack 16.

[0020] The equipment box 14 and battery pack 16 are, for example, disposed under the seat, under the floor of the passenger compartment, or at the rear of the vehicle. In this embodiment, as... Figure 1 As shown, the equipment box 14 and the battery pack 16 are arranged adjacent to each other in the vehicle width direction (vehicle left and right direction).

[0021] Figure 2 For along Figure 1 A cross-sectional view of the equipment box 14 of the AA line. Figure 3 To indicate from Figure 2 A perspective view of a portion of the equipment housing 14 as seen from direction B. (See image below.) Figure 2 As shown, the equipment box 14 includes a front wall 30, a rear wall 32, an upper wall 34, a lower wall 36, a left wall, and a right wall. The equipment box 14 has a generally rectangular parallelepiped shape. Furthermore, in Figure 2 , Figure 3 In the diagram, the left and right walls of equipment box 14 are not shown. Figure 3 Only the front wall 30, lower wall 36, and front portion of the upper wall 34 within the equipment housing 14 are shown. Furthermore, in... Figure 3 Only two wire harnesses 22 are shown in the image (see reference). Figure 2 )one of the.

[0022] A junction box 20 (J / B) is disposed in the equipment housing 14. The junction box 20 internally houses, for example, electrical terminal connections, fuses, and electronic equipment for controlling the battery pack 16. The junction box 20 has a generally rectangular shape. The junction box 20 is fixed to the lower wall 36 of the equipment housing 14.

[0023] like Figure 3 As shown, vehicle 10 is equipped with a battery pack 16 (see reference). Figure 1 The wiring harness 22 (W / H) extends from the junction box 20. The wiring harness 22 is connected to the upper surface 20a of the junction box 20. In addition, wiring harnesses extending from other circuits can also be further connected to the junction box 20.

[0024] The walls of the equipment enclosure 14 are formed of metal plates. For example... Figure 2 As shown, the front wall 30 is bent outward through the upper part 50, thus having an L-shaped cross-section. The front wall 30 (metal plate) has a first part 41 facing the junction box 20, and a second part 42 extending upward relative to the first part 41 and toward the side opposite to the junction box 20 (front side). The rear wall 32 has a shape that is symmetrical to the front wall 30.

[0025] like Figure 2 As shown, the upper wall 34 comprises a front upper wall 34-1 and a rear upper wall 34-2. The front upper wall 34-1 is bent downwards at its front, thus having a hook-shaped cross-section. The lower part 60 of the front upper wall 34-1 (referred to as the hook-shaped lower part 60) extends into the inner side of the upper part 50 of the front wall 30 (referred to as the L-shaped upper part 50). Furthermore, the front upper wall 34-1 has two protrusions 70a and 70b on its upper surface, formed by bending a metal plate. The two protrusions 70a and 70b protrude upwards respectively. The protrusion 70b on the central side of the equipment housing 14 becomes a connecting part that engages with the protrusion 70c of the rear upper wall 34-2.

[0026] The rear upper wall 34-2, except for the protrusion 70c on the central side of the equipment box 14, has a shape symmetrical to the front upper wall 34-1. Regarding the protrusion 70c of the rear upper wall 34-2, as... Figure 2 As shown, the front end is bent and located below the protrusion 70b of the front upper wall 34-1.

[0027] Additionally, in the equipment housing 14, the front wall 30, lower wall 36, and rear wall 32 can also be formed by bending a metal plate. The front wall 30 and the front upper wall 34-1, the front upper wall 34-1 and the rear upper wall 34-2, and the rear upper wall 34-2 and the rear wall 32 can also be joined together using screws or adhesives, etc.

[0028] like Figure 3As shown, the wire harness 22 is disposed inside the hook-shaped lower portion 60 of the front upper wall 34-1. A hole 64 is formed on the inner wall 62 of the hook-shaped lower portion 60 for the wire harness 22 to pass through. At the edge of the hole 64, a resin material 65 is disposed to prevent damage to the outer peripheral surface of the wire harness 22. The wire harness 22 passes through the hole 64 of the hook-shaped lower portion 60 from the junction box 20 into the hook-shaped lower portion 60, and extends outward from the opening 66 at the right end of the hook-shaped lower portion 60 towards the outside of the equipment housing 14. Additionally, it is preferable to also provide a hole for the wire harness 22 to pass through on the right wall (not shown) of the equipment housing 14.

[0029] Furthermore, although the front wiring harness 22 has been described here, the rear wiring harness 22 has the same structure. For example... Figure 2 As shown, the rear wire harness 22 is positioned inside the hook-shaped lower part 60 of the rear upper wall 34-2.

[0030] According to the embodiments described above, the second moment of the cross-section of the equipment box 14 can be increased by the L-shaped upper part 50 of the front wall 30 (or the rear wall 32) and the hook-shaped lower part 60 of the front upper wall 34-1 (or the rear upper wall 34-2). Thus, when a load F1 (refer to...) is input from the side of the vehicle... Figure 1 , Figure 3 When the equipment box 14 is crushed, it can prevent the junction box 20 inside the equipment box 14 from deforming, thereby protecting high-voltage components.

[0031] Furthermore, the wire harness 22 can be protected by accommodating it within the metal plate structure of the equipment housing 14 (inside the hook-shaped lower part 60 of the front upper wall 34-1 or the hook-shaped lower part 60 of the rear upper wall 34-2). This also helps suppress leakage current in the wire harness 22.

[0032] In addition, such as Figure 2 As shown, because the L-shaped upper portion 50 of the front wall 30 and the hook-shaped lower portion 60 of the front upper wall 34-1 extend forward, rigidity is improved even for a load F2 input from the front of the vehicle. Similarly, because the L-shaped upper portion 50 of the rear wall 32 and the hook-shaped lower portion 60 of the rear upper wall 34-2 extend rearward, rigidity is improved even for a load F3 input from the rear of the vehicle. The input loads F2 and F3 toward the junction box 20 can be received by the first portion 41 and the second portion 42 of the metal plate, thereby protecting the junction box 20.

[0033] In addition, such as Figure 2As shown, since the protrusions 70a and 70b are provided on the front upper wall 34-1 of the equipment housing 14, and the protrusions 70a and 70c are provided on the rear upper wall 34-2, the rigidity can be improved even for a load F4 input from above the vehicle. This can suppress the deflection and crushing of the equipment housing 14.

[0034] Symbol Explanation

[0035] 10. Vehicle; 14. Equipment box; 16. Battery pack; 20. Junction box; 20a. Upper surface; 22. Wiring harness; 30. Front wall (metal plate); 32. Rear wall; 34. Upper wall; 34-1. Front upper wall; 34-2. Rear upper wall; 36. Lower wall; 41. First part; 42. Second part; 50. Upper part (L-shaped upper part); 60. Lower part (hook-shaped lower part); 62. Inner wall; 64. Hole; 65. Resin material; 66. Opening; 70a, 70b, 70c. Protrusion.

Claims

1. A mounting structure for a vehicle junction box, characterized in that, It includes a metal plate, which is positioned opposite the junction box in the vehicle's longitudinal direction. The metal plate has the following characteristics: The first part is face-to-face with the junction box; The second part extends from above the vehicle, opposite to the junction box, compared to the first part.

Images