Electric vehicle

Abstract

To suppress damage to a high-voltage cable when an electric vehicle having the high-voltage cable routed on a roof rolls over.SOLUTION: An electric vehicle 100 includes: a frame 30 fixed on a roof; a high-voltage cable 60; a bracket 70 supporting the high-voltage cable 60; and a hydrogen tank 50 mounted on the frame 30 and having a valve unit 52 attached to a longer direction end part. The hydrogen tank 50 is mounted on the frame 30 such that the valve unit 52 protrudes to an outer side in a vehicle width direction relative to the frame 30. When impact force is applied from an outer side in the vehicle width direction, the bracket 70 is bent and deformed toward an inner side in the vehicle width direction to store the high-voltage cable 60 on an inner side in the vehicle width direction relative to a vehicle width direction outer end surface 52A of the valve unit 52.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a structure of an electric vehicle having a high-voltage cable routed on the roof. [Background technology]

[0002] In recent years, fuel cell electric vehicles that use hydrogen as fuel have come into use. For example, Patent Document 1 discloses a fuel cell bus that has a hydrogen gas tank mounted on the roof and a fuel cell located in the rear of the vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-18803 Summary of the Invention [Problem to be solved by the invention]

[0004] Electric vehicles equipped with a gas fuel tank and high-voltage equipment on the roof are currently under consideration. In such electric vehicles, high-voltage cables may be routed along the sides of the roof. In this case, if the electric vehicle overturns, the high-voltage cables may come into contact with the ground and be damaged.

[0005] Therefore, an object of the present disclosure is to suppress damage to a high-voltage cable when an electric vehicle with a high-voltage cable routed on its roof overturns. [Means for solving the problem]

[0006] The electric vehicle disclosed herein is an electric vehicle comprising: a frame fixed to a roof; a high-voltage cable routed in the fore-and-aft direction of the vehicle along the frame; a bracket attached to the frame, extending outward in the vehicle width direction from the frame and supporting the high-voltage cable on the vehicle width outer side of the frame; and a gas fuel tank mounted on the frame so that its longitudinal direction is the vehicle width direction and having a valve unit attached to its longitudinal end, wherein the gas fuel tank is mounted on the frame so that the valve unit protrudes outward in the vehicle width direction beyond the frame, and when an impact force is applied from the vehicle width outer side, the bracket bends and deforms toward the vehicle width inner side, thereby storing the high-voltage cable on the vehicle width inner side of the vehicle width outer end face of the valve unit.

[0007] As a result, when the electric vehicle rolls over, the high-voltage cable is stored further inward in the vehicle width direction than the valve unit due to the bending deformation of the bracket, and the highly rigid valve unit comes into contact with the ground, thereby preventing the high-voltage cable from coming into contact with the ground and being damaged.

[0008] In the electric vehicle disclosed herein, the bracket may support the high-voltage cable between an upper surface of the frame and a lower end of the valve unit, on the outer side in the vehicle width direction of the outer end face of the valve unit, and when an impact force is applied from the outside in the vehicle width direction, the bracket may bend and deform toward the inner side in the vehicle width direction to store the high-voltage cable between the upper surface of the frame and the lower end of the valve unit, on the inner side in the vehicle width direction of the outer end face of the valve unit.

[0009] With this configuration, when the electric vehicle rolls over, the high-voltage cable is stored between the upper surface of the highly rigid frame and the lower end of the highly rigid valve unit, ensuring a survival space for the high-voltage cable in the event of a rollover, thereby reducing damage to the high-voltage cable when the electric vehicle rolls over.

[0010] In the electric vehicle disclosed herein, the bracket may include a fixed portion fixed to an outer surface of the frame in the vehicle width direction, a bending portion bending outward in the vehicle width direction from an upper end of the fixed portion, and an L-shaped cable support portion connected to the outer side of the bending portion in the vehicle width direction, with a tip extending upward, and holding the high-voltage cable on the upper outer side in the vehicle width direction, wherein when an impact force is applied from the outside in the vehicle width direction, the cable support portion rotates inward in the vehicle width direction around the bending portion, and the high-voltage cable may be stored inward in the vehicle width direction of the outer end face of the valve unit in the vehicle width direction.

[0011] With this configuration, when the electric vehicle rolls over and an impact force is applied to the outer side of the high-voltage cable in the vehicle width direction from the outside in the vehicle width direction, a rotational moment is applied to the bent portion to rotate the cable support portion inward in the vehicle width direction. As a result, the cable support portion rotates around the bent portion and stores the high-voltage cable inward in the vehicle width direction relative to the valve unit. This makes it possible to reduce damage to the high-voltage cable when the electric vehicle rolls over.

[0012] In the electric vehicle disclosed herein, the bracket may include a fixed portion fixed to an outer surface of the frame in the vehicle width direction, a curved portion bent outward in the vehicle width direction from an upper end of the fixed portion, and an L-shaped cable support portion connected to the outer side of the curved portion in the vehicle width direction, with a tip extending upward, and holding the high-voltage cable on its upper part outside in the vehicle width direction, the cable support portion including a horizontal plate connected to the curved portion and extending in the vehicle width direction, and a vertical plate extending upward from the horizontal plate and holding the high-voltage cable on its upper part outside in the vehicle width direction, wherein an upper half of the vertical plate is thinner than a lower half, and when an impact force is applied from outside in the vehicle width direction, the upper half rotates inward in the vehicle width direction around the boundary between the upper half and the lower half, and at least a portion of the high-voltage cable is stored between the upper surface of the frame and the lower end of the valve unit, more inward in the vehicle width direction than the outer end face of the valve unit in the vehicle width direction.

[0013] In this way, the cable support part rotates inward in the vehicle width direction at the boundary between the upper and lower halves of the cable support part, and the high-voltage cable is stored inward in the vehicle width direction from the ground penetration line in the event of a rollover. This makes it possible to reduce damage to the high-voltage cable when the electric vehicle rolls over.

[0014] In the electric vehicle disclosed herein, when an impact force is applied from the outside in the vehicle width direction, the upper half portion rotates inward in the vehicle width direction around the boundary between the upper half portion and the lower half portion, and then the cable support portion rotates inward in the vehicle width direction around the bent portion between the lower half portion and the cross plate, and the high-voltage cable may be stored between the upper surface of the frame and the lower end of the valve unit, more inward in the vehicle width direction than the outer end face of the valve unit in the vehicle width direction.

[0015] In this way, the cable support part rotates inward in the vehicle width direction around two points: the boundary between the upper and lower halves of the cable support part and the bend, and the cable support part can be folded and stored in the gap between the upper surface of the frame and the lower end of the valve unit. [Effects of the Invention]

[0016] The present disclosure can suppress damage to a high-voltage cable when an electric vehicle with a high-voltage cable routed on its roof overturns. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a right side view of an electric vehicle according to an embodiment. [Figure 2] 1 is a plan view of a power generation unit mounted on an electric vehicle according to an embodiment; [Figure 3] FIG. 2 is a right side view of the power generation unit mounted on the electric vehicle according to the embodiment. [Figure 4] 2 is a cross-sectional view of the electric vehicle according to the embodiment, taken along the line AA in FIG. 1, illustrating deformation of the bracket when the vehicle rolls over. FIG. [Figure 5] FIG. 10 is a cross-sectional view of a bracket and a high-voltage cable of an electric vehicle according to another embodiment, illustrating deformation of the bracket when the vehicle overturns. [Figure 6] FIG. 10 is a cross-sectional view of a bracket and a high-voltage cable of an electric vehicle according to another embodiment, illustrating deformation of the bracket when the vehicle overturns. DETAILED DESCRIPTION OF THE INVENTION

[0018] An electric vehicle 100 according to an embodiment will be described below with reference to the drawings. As shown in FIG. 1, the electric vehicle 100 includes a body 10, a power generation unit 20, a high-voltage battery 12, a power control device (hereinafter referred to as PCU) 13, and a drive motor 14. In the following description, the electric vehicle 100 will be described as an electric bus. Note that FR, UP, and RH shown in each drawing indicate the front, upper, and right sides of the electric vehicle 100, respectively. The opposite directions of FR, UP, and RH indicate the rear, lower, and left sides. Hereinafter, when the directions of front-rear, left-right, and up-down are used in the description, they will refer to the front-rear direction of the electric vehicle 100, the left-right direction, and the up-down direction, unless otherwise specified.

[0019] The power generation unit 20 includes a frame 30, an FC module 40, a hydrogen tank 50, a high-voltage cable 60, a bracket 70, and a casing 21. The frame 30 is fixed onto the roof 11. The FC module 40 and the hydrogen tank 50 are mounted on the frame 30. The high-voltage cable 60 is routed in the fore-and-aft direction of the vehicle along the frame 30. The bracket 70 is attached to the frame 30 and supports the high-voltage cable 60. The power generation unit 20 is covered with the casing 21.

[0020] The hydrogen tank 50 is a gas fuel tank that stores hydrogen gas, which is a gas fuel. The FC module 40 is a fuel cell module that generates electricity using hydrogen gas supplied from the hydrogen tank 50 as fuel. The electricity generated by the FC module 40 charges the high-voltage battery 12 at the rear of the electric vehicle 100 via a high-voltage cable 60, and is also supplied from the PCU 13 to the drive motor 14. The motor 14 drives the wheels and causes the electric vehicle 100 to travel.

[0021] Next, the detailed structure of the power generation unit 20 will be described with reference to Figures 2 to 4. As shown in Figures 2 to 4, the frame 30 includes left and right front rails 31, left and right rear rails 32, first to fourth cross members 33A to 33D, left and right first and second pillars 34A and 34B, left and right third to fifth pillars 35A, 35B, and 35C, left and right front upper rails 38, left and right rear upper rails 37, an upper connecting member 36, and upper first to upper fourth cross members 39A, 39B, 39C, and 39D.

[0022] The left and right front rails 31 and the left and right rear rails 32 are connected in the longitudinal direction of the vehicle. The rear rails 32 are taller than the front rails 31. As shown in Figure 4, the rear rails 32 are rectangular closed cross-section members. Like the rear rails 32, the front rails 31 are also rectangular closed cross-section members.

[0023] The first cross member 33A is an L-shaped cross-section member that connects the left and right front rails 31 in the vehicle width direction. The second cross member 33B is an L-shaped cross-section member that connects the front end of the rear rail 32 to the rear end of the front rail 31 in the vehicle width direction. The third and fourth cross members 33C and 33D are L-shaped cross-section members that connect the center and rear end of the rear rail 32 in the vehicle width direction. The left and right front rails 31, the left and right rear rails 32, and the first to fourth cross members 33A to 33D form a square lattice frame. As shown in FIG. 4, left and right mounting rails 16 are fixed onto the roof 11, and the left and right ends of the first to fourth cross members 33A to 33D are fixed to the left and right mounting rails 16 with bolts 17 and nuts 18.

[0024] The left and right first and second pillars 34A, 34B are erected at the front and rear ends of the left and right front rails 31. The upper ends of the first and second pillars 34A, 34B are connected by left and right front upper rails 38. The left and right third to fifth pillars 35A, 35B, 35C are erected at the front, center, and rear of the left and right rear rails 32. The upper ends of the left and right third to fifth pillars 35A, 35B, 35C are connected by left and right rear upper rails 37. In addition, first to fourth upper cross members 39A, 39B, 39C, 39D connect the left and right rear upper rails 37.

[0025] An FC module 40 is mounted in the area surrounded by the left and right front rails 31 and the first and second cross members 33A, 33B. A radiator 45 is also mounted in front of the left and right front rails 31. Two upper connecting members 36 connect the upper first cross member 39A to the top of the radiator 45 in the fore-and-aft direction of the vehicle. Three hydrogen tanks 50 are mounted in the area surrounded by the left and right rear rails 32 and the second and fourth cross members 33B, 33D, with their longitudinal directions aligned with the width direction of the vehicle.

[0026] The hydrogen tank 50 is a cylindrical, longitudinal member with hemispherical end plates attached to both ends. A nozzle 51 protruding in the longitudinal direction is attached to the center of the end plates at both ends. In other words, a valve unit 52 is attached to the longitudinal end of the hydrogen tank 50 and protrudes from the longitudinal end outward in the vehicle width direction. The nozzle 51 is in communication with the interior of the hydrogen tank 50. A valve unit 52 is attached to the longitudinal end of the nozzle 51. Hydrogen gas stored in the hydrogen tank 50 is supplied to the FC module 40 through the nozzle 51 and valve unit 52. Furthermore, hydrogen gas is filled into the hydrogen tank 50 through the valve unit 52 and nozzle 51.

[0027] Left and right pedestals 41 are fixed to the upper parts of the left and right rear rails 32. Left and right fixing clamps 42 are attached to the top of the left and right pedestals 41, which clamp and fix the nozzle 51 of the hydrogen tank 50 from above and below. The hydrogen tank 50 is fixed onto the left and right rear rails 32 by fixing the left and right nozzles 51 to the left and right fixing clamps 42. In this way, the hydrogen tank 50 is fixed to the left and right rear rails 32 so that its longitudinal direction is the width direction of the vehicle.

[0028] As shown in Figure 4, when the hydrogen tank 50 is fixed to the left and right rear rails 32, the vehicle width direction outer end surface 52A of the valve unit 52 protrudes outward in the vehicle width direction beyond the vehicle width direction outer surface 32A of the left and right rear rails 32.

[0029] The high-voltage cable 60 includes a cable body 61 and a clamp 62 fixed to the outer periphery of the cable body 61. The high-voltage cable 60 is routed along the frame 30 in the front-rear direction of the vehicle.

[0030] The bracket 70 is attached to the frame 30 and extends outward in the vehicle width direction from the frame 30 to support the high-voltage cable 60 on the outer side of the frame 30 in the vehicle width direction. The bracket 70 is a rectangular folded plate member including a fixed portion 71, a bent portion 75, and a cable support portion 74. The fixed portion 71 is a flat plate portion that is fixed to the outer surface 32A of the rear rail 32 in the vehicle width direction. The upper end of the fixed portion 71 protrudes slightly upward from the upper surface 32B of the rear rail 32. The bent portion 75 is a portion that bends from the upper end of the fixed portion 71 outward in the vehicle width direction. Because the upper end of the fixed portion 71 protrudes slightly upward from the upper surface 32B of the rear rail 32, the bent portion 75 is located slightly above the upper surface 32B of the rear rail 32. The cable support portion 74 is an L-shaped portion composed of a horizontal plate 72 that connects to the bent portion 75 and extends in the vehicle width direction, and a vertical plate 73 that extends upward from the horizontal plate 72. The inner portion of the clamp 62 of the high-voltage cable 60 in the vehicle width direction is attached to the upper portion of the vertical plate 73. Therefore, the high-voltage cable 60 is attached to the vertical plate 73 so that the cable main body 61 is on the outer side of the vertical plate 73 in the vehicle width direction.

[0031] As described above, the bent portion 75 is located slightly above the upper surface 32B of the rear rail 32, and therefore the horizontal plate 72 is also located slightly above the upper surface 32B of the rear rail 32. Furthermore, the horizontal plate 72 extends from the bent portion 75 to a position outside in the vehicle width direction of the outer end surface 52A of the valve unit 52. As a result, the bracket 70 supports the high-voltage cable 60 between the upper surface 32B of the rear rail 32 and the lower end 52B of the valve unit 52, outside in the vehicle width direction of the outer end surface 52A of the valve unit 52.

[0032] As shown in FIG. 4, the length L1 between the bent portion 75 and the outer end of the high-voltage cable 60 in the vehicle width direction is shorter than the length H1 between the bent portion 75 and the lower end 52B of the valve unit 52.

[0033] Next, we will explain how the bracket 70 deforms when the electric vehicle 100 configured as described above rolls over and the power generation unit 20 comes into contact with the ground. When the electric vehicle 100 rolls over, the ground penetrates up to a rollover ground penetration line 91 (shown by a dashed line in FIG. 4 ) that connects the vehicle width direction outer surface 16A of the mounting rail 16 fixed to the roof 11 and the upper end of the vehicle width direction outer end surface 52A of the valve unit 52. At this time, a lateral impact force is applied to the high-voltage cable 60 from the vehicle width direction outer side toward the vehicle width direction center, as indicated by the outline arrows in FIG. 4 . Because the high-voltage cable 60 is connected to the vertical plate 73 above the horizontal plate 72 of the bracket 70, a counterclockwise rotational moment is applied to the bent portion 75 due to the impact force. This rotational moment causes the L-shaped cable support portion 74 to bend counterclockwise toward the vehicle width direction inner side, as indicated by dashed arrows 92 and 93 in FIG. 4 .

[0034] As described above, the length L1 between the bending portion 75 and the outer end of the high-voltage cable 60 in the vehicle width direction is shorter than the length H1 between the bending portion 75 and the lower end 52B of the valve unit 52. Therefore, when the cable support portion 74 bends and deforms inward in the vehicle width direction around the bending portion 75, the high-voltage cable 60 is stored between the upper surface 32B of the rear rail 32 and the lower end 52B of the valve unit 52, on a position inward in the vehicle width direction than the outer end face 52A of the valve unit 52. Furthermore, because the outer end face 52A of the valve unit 52 has high rigidity, the ground does not intrude further inward in the vehicle width direction than the ground penetration line 91 in the event of rollover. Therefore, the space defined between the upper surface 32B of the rear rail 32 and the lower end 52B of the valve unit 52, and on the inner side in the vehicle width direction of the outer end face 52A of the valve unit 52 in the vehicle width direction, becomes a survival space for the high-voltage cable 60 when the electric vehicle 100 rolls over. This makes it possible to prevent the high-voltage cable 60 from being pinched between the cable and the ground and being damaged when the electric vehicle 100 rolls over.

[0035] Next, an electric vehicle 110 according to another embodiment will be described with reference to Fig. 5. The same components as those in the electric vehicle 100 previously described with reference to Figs. 1 to 4 are designated by the same reference numerals, and description thereof will be omitted.

[0036] As shown in Fig. 5, electric vehicle 110 has power generation unit 120 mounted on roof 11. Power generation unit 120 has the same configuration as power generation unit 20 described above, except that high-voltage cable 60 is supported by bracket 80 instead of bracket 70 described with reference to Figs. 1 to 4 .

[0037] As shown in Figure 5, bracket 80 is a rectangular folded plate member having a fixed portion 81, a bending portion 85, and a cable support portion 84. Cable support portion 84 is an L-shaped portion made up of a horizontal plate 82 and a vertical plate 83. The configurations of fixed portion 81, bending portion 85, and horizontal plate 82 are the same as those of fixed portion 71, bending portion 75, and horizontal plate 72 of bracket 70 described above, and therefore description thereof will be omitted.

[0038] The vertical plate 83 is composed of a lower half 83A having the same thickness as the horizontal plate 82 and an upper half 83B having a thickness thinner than the lower half 83A. The inner side of the clamp 62 of the high-voltage cable 60 in the vehicle width direction is attached to the top of the upper half 83B. Therefore, the high-voltage cable 60 is attached to the upper half 83B so that the cable main body 61 is on the outer side of the vertical plate 73 in the vehicle width direction.

[0039] When the electric vehicle 110 configured as described above rolls over, a lateral impact force is applied to the high-voltage cable 60 from the outer side of the vehicle width direction toward the center of the vehicle width direction, as indicated by the outline arrow in FIG. 5 . Because the high-voltage cable 60 is connected to the upper part of the upper half portion 83B, a counterclockwise rotational moment is applied to the upper half portion 83B due to the impact force. This rotational moment is concentrated at the boundary 83C between the upper half portion 83B and the lower half portion 83A, where the thickness changes. Therefore, due to the impact force, the upper half portion 83B is bent counterclockwise toward the inner side of the vehicle width direction, as indicated by arrows 94 and 95 in FIG. 5 . As a result, as indicated by the dashed line in FIG. 5 , a portion of the high-voltage cable 60 is stored between the upper surface 32B of the rear rail 32 and the lower end 52B of the valve unit 52, more inward in the vehicle width direction than the outer end surface 52A of the valve unit 52. Moreover, the high-voltage cable 60 is entirely stored inside the vehicle width direction of the ground entry line 91 in the event of rollover. This prevents the high-voltage cable 60 from being pinched between the cable and the ground and being damaged when the electric vehicle 110 rolls over.

[0040] Next, an electric vehicle 115 according to another embodiment will be described with reference to Fig. 6. The same components as those in the electric vehicle 110 previously described with reference to Fig. 4 will be assigned the same reference numerals and description thereof will be omitted.

[0041] As shown in Fig. 6, electric vehicle 115 has power generation unit 125 mounted on roof 11. Power generation unit 125 has the same configuration as power generation unit 120 described above, except that high-voltage cable 60 is supported by bracket 80A instead of bracket 80 described with reference to Fig. 4.

[0042] In bracket 80A, the length of horizontal plate 82A is longer than the length of horizontal plate 82 of bracket 80, and the position of high-voltage cable 60 is further outward in the vehicle width direction than the position of high-voltage cable 60 of power generation unit 120. Here, length L4 of horizontal plate 82 is shorter than length H1 between bent portion 75 and lower end 52B of valve unit 52. Furthermore, length L3 between bent portion 85 and the outer end of high-voltage cable 60 in the vehicle width direction is longer than length H1 between bent portion 75 and lower end 52B of valve unit 52. The configuration of other parts of bracket 80A is the same as the configuration of bracket 80 described with reference to FIG. 4.

[0043] When the electric vehicle 115 configured in this manner rolls over, as in the case of the electric vehicle 110 previously described with reference to FIG. 5 , the impact force causes the upper half portion 83B to bend counterclockwise around the boundary 83C toward the inside in the vehicle width direction, as indicated by dashed arrows 96 and 97 in FIG. 6 . However, because the length of the horizontal plate 82A is longer than that of the horizontal plate 82, a portion of the high-voltage cable 60 is stored inside the vehicle width direction relative to the rollover ground line 91, but another portion of the high-voltage cable 60 is not stored inside the vehicle width direction relative to the rollover ground line 91. As a result, a portion of the high-voltage cable 60 remains outside the rollover ground line 91 in the vehicle width direction, and the high-voltage cable 60 continues to be subjected to an impact force that is further directed inward in the vehicle width direction. Then, as in the case of the bracket 70 previously described with reference to FIG. 4 , this impact force causes the L-shaped cable support portion 84A to bend counterclockwise around the bent portion 85 toward the inside in the vehicle width direction, as indicated by dashed arrows 98 and 99 in FIG. 6 .

[0044] As shown in FIG. 6 , when the upper half portion 83B is bent and deformed, the length between the bent portion 85 and the outer end of the high-voltage cable 60 in the vehicle width direction is length L3, which is shorter than the initial length L2. Length L3 is shorter than length H1 between the bent portion 85 and the lower end 52B of the valve unit 52. Because length L3 is shorter than length H1, when the cable support portion 84A is bent and deformed counterclockwise around the bent portion 85 toward the inside in the vehicle width direction, the high-voltage cable 60 is stored between the upper surface 32B of the rear rail 32 and the lower end 52B of the valve unit 52, more inward in the vehicle width direction than the outer end surface 52A of the valve unit 52 in the vehicle width direction. This prevents the high-voltage cable 60 from being pinched between the cable support portion 84A and the ground and being damaged when the electric vehicle 115 overturns.

[0045] In the above explanation, the gas fuel tank is the hydrogen tank 50 that stores hydrogen gas, and the FC module 40 is a fuel cell module that generates power using hydrogen gas supplied from the hydrogen tank 50 as fuel, but this is not limiting. For example, the FC module 40 may generate power using a fuel cell that uses natural gas as fuel, and the gas fuel tank may be a natural gas tank.

[0046] In the above description, the electric vehicle 100 has been described as an electric bus, but this is not limited to this, and the electric vehicle 100 may be, for example, an electric truck, an electric SUV, an electric commercial vehicle, etc., as long as the power generation unit 20 is mounted on the roof 11. [Explanation of symbols]

[0047] 10 body, 11 roof, 12 high-voltage battery, 14 motor, 16 mounting rail, 16A, 32A outer surface in the vehicle width direction, 17 bolt, 18 nut, 20, 120, 125 power generating unit, 21 casing, 30 frame, 31 front rail, 32 rear rail, 32B upper surface, 33A first cross member, 33B second cross member, 33C third cross member, 33D fourth cross member, 34A first pillar, 34B second pillar, 36 upper connecting member, 37 rear upper rail, 38 front upper rail, 39A first upper cross member, 39B second upper cross member, 39C third upper cross member, 39D fourth upper cross member, 40 FC module, 41 base, 42 fixing clamp, 45 radiator, 50 hydrogen tank, 51 nozzle, 52 Valve unit, 52A outer end surface in the vehicle width direction, 52B lower end, 60 high voltage cable, 61 cable body, 62 clamp, 70, 80, 80A bracket, 71, 81 fixing part, 72, 82, 82A horizontal plate, 73, 83 vertical plate, 74, 84, 84A cable support part, 75, 85 bending part, 83A lower half part, 83B upper half part, 83C boundary, 91 ground approach line in case of overturn, 100, 110, 115 electric vehicle.

Claims

1. A frame fixed to the roof; a high-voltage cable routed in the front-rear direction of the vehicle along the frame; a bracket attached to the frame, extending outward in a vehicle width direction from the frame to support the high-voltage cable on the outer side of the frame in the vehicle width direction; a gas fuel tank mounted on the frame so that its longitudinal direction coincides with the vehicle width direction, and having a valve unit attached to an end portion in the longitudinal direction, the gas fuel tank is mounted on the frame such that the valve unit protrudes outward in a vehicle width direction beyond the frame, when an impact force is applied from the outside in the vehicle width direction, the bracket bends and deforms toward the inside in the vehicle width direction, and stores the high-voltage cable more inward in the vehicle width direction than the outer end surface of the valve unit in the vehicle width direction; An electric vehicle characterized by:

2. The electric vehicle according to claim 1, the bracket supports the high-voltage cable between an upper surface of the frame and a lower end of the valve unit, on the outer side in the vehicle width direction of the outer end face of the valve unit in the vehicle width direction, and when an impact force is applied from the outer side in the vehicle width direction, the bracket bends and deforms toward the inner side in the vehicle width direction to store the high-voltage cable between the upper surface of the frame and the lower end of the valve unit, on the inner side in the vehicle width direction of the outer end face of the valve unit in the vehicle width direction; An electric vehicle characterized by:

3. The electric vehicle according to claim 1 or 2, The bracket is a fixed portion fixed to an outer surface of the frame in the vehicle width direction; a bent portion bent from an upper end of the fixed portion toward the outer side in the vehicle width direction; and an L-shaped cable support portion connected to the outer side in the vehicle width direction of the bent portion, with a tip extending upward, and holding the high-voltage cable on an upper part, outer side in the vehicle width direction, when an impact force is applied from the outside in the vehicle width direction, the cable support portion rotates inward in the vehicle width direction around the bent portion, and the high-voltage cable is stored more inward in the vehicle width direction than the outer end surface of the valve unit in the vehicle width direction; An electric vehicle characterized by:

4. The electric vehicle according to claim 1 or 2, The bracket is a fixed portion fixed to an outer surface of the frame in the vehicle width direction; a bent portion bent from an upper end of the fixed portion toward the outer side in the vehicle width direction; and an L-shaped cable support portion connected to the outer side in the vehicle width direction of the bent portion, with a tip extending upward, and holding the high-voltage cable on an upper part, outer side in the vehicle width direction, the cable support portion includes a horizontal plate connected to the bent portion and extending in the vehicle width direction, and a vertical plate extending upward from the horizontal plate and holding the high-voltage cable on an upper portion thereof outside in the vehicle width direction, The thickness of the upper half of the vertical plate is thinner than the thickness of the lower half, when an impact force is applied from the outside in the vehicle width direction, the upper half portion rotates inward in the vehicle width direction around the boundary between the upper half portion and the lower half portion, and at least a portion of the high-voltage cable is stored between the upper surface of the frame and the lower end of the valve unit, more inward in the vehicle width direction than the outer end face of the valve unit in the vehicle width direction; An electric vehicle characterized by:

5. The electric vehicle according to claim 4, when an impact force is applied from the outside in the vehicle width direction, the upper half portion rotates inward in the vehicle width direction around the boundary between the upper half portion and the lower half portion, and then the cable support portion rotates inward in the vehicle width direction around the bent portion between the lower half portion and the side plate, and the high-voltage cable is stored between the upper surface of the frame and the lower end of the valve unit, more inward in the vehicle width direction than the outer end face of the valve unit in the vehicle width direction; An electric vehicle characterized by:

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