Vehicle

Abstract

To protect a power storage module that does not overlap with a frame, which is arranged at the bottom of a vehicle skeleton when viewed from a side, in a vehicle mounted with a power storage device consisting of power storage modules stacked in a vertical direction of the vehicle.SOLUTION: A vehicle skeleton 3 incudes a first frame and a second frame, which extend in a longitudinal direction of a vehicle 1, spaced apart in a width direction of the vehicle 1. A power storage device 2 has a first power storage module which includes a first power storage cell, and a second power storage module which includes a second power storage cell and is arranged above the first power storage module. The first power storage module is arranged between the first and second frames. The first power storage cell extends in the width direction of the vehicle, while the second power storage cell extends in the longitudinal direction of the vehicle. The first power storage cell includes first and second edge faces arranged with a gap in the width direction of the vehicle and a first external terminal installed on the first edge face. The second power storage cell includes third and fourth edge faces arranged with a gap in the longitudinal direction of the vehicle and a second external terminal installed on the third edge face.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a vehicle.

Background Art

[0002] Japanese Unexamined Patent Application Publication No. 2020-205198 (Patent Document 1) discloses a vehicle including a power storage device in which power storage modules are stacked in the vertical direction of the vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the vehicle disclosed in Patent Document 1, when the power storage device and the vehicle skeleton are viewed from the side of the vehicle, some of the power storage modules in the power storage device do not overlap with the frame disposed at the bottom of the vehicle skeleton. In such a vehicle, when the power storage device and the vehicle skeleton are viewed from the side of the vehicle, it is required to protect the power storage module that does not overlap with the frame disposed at the bottom of the vehicle skeleton.

[0005] One object of the present disclosure is to protect a power storage module that does not overlap with a frame disposed at the bottom of a vehicle skeleton when a power storage device in which power storage modules are stacked in the vertical direction of the vehicle and the vehicle skeleton are viewed from the side of the vehicle.

Means for Solving the Problems

[0006] A vehicle according to an aspect of the present disclosure includes a vehicle skeleton and a power storage device provided on the vehicle skeleton. The vehicle skeleton includes a first frame and a second frame arranged at intervals in the vehicle width direction with respect to the first frame. The first frame and the second frame are formed to extend in the longitudinal direction of the vehicle. The power storage device includes a first power storage module including first power storage cells and a second power storage module including second power storage cells and arranged on the first power storage module. The first power storage module is arranged between the first frame and the second frame. The first power storage cells are arranged to extend in the vehicle width direction. The first power storage cells include a first end face and a second end face arranged at intervals in the vehicle width direction, and a first external terminal provided on the first end face. The second power storage cells are arranged to extend in the longitudinal direction of the vehicle. The second power storage cells include a third end face and a fourth end face arranged at intervals in the longitudinal direction of the vehicle, and a second external terminal provided on the third end face.

[0007] Preferably, the vehicle skeleton includes a first pillar connected to the first frame, a second pillar arranged at intervals rearward of the first pillar and connected to the first frame, and a third pillar arranged at intervals rearward of the second pillar and connected to the first frame. When viewing the second power storage module and the vehicle skeleton from the side of the vehicle, the front end portion of the second power storage cell is arranged to overlap the second pillar.

[0008] Preferably, the vehicle skeleton includes a first pillar connected to the first frame, a second pillar arranged at intervals rearward of the first pillar and connected to the first frame, and a third pillar arranged at intervals rearward of the second pillar and connected to the first frame. When viewing the second power storage module and the vehicle skeleton from the side of the vehicle, the rear end portion of the second power storage cell is arranged to overlap the third pillar.

[0009] Preferably, the size of the first power storage cells and the size of the second power storage cells are the same.

[0010] Preferably, the first power storage cell further includes a first exhaust valve provided on the first end face. The second power storage cell further includes a second exhaust valve provided on the third end face.

Advantages of the Invention

[0011] According to the present disclosure, in a vehicle including a power storage device in which power storage modules are stacked in the vertical direction of the vehicle, when the power storage device and the vehicle skeleton are viewed from the side of the vehicle, a power storage module that does not overlap with a frame disposed at the bottom of the vehicle skeleton can be protected.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0013] Hereinafter, embodiments and modifications according to the present disclosure will be described with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions thereof will not be repeated. Note that the embodiments and modifications described below may be selectively combined as appropriate.

[0014] With reference to FIGS. 1 to 8, the vehicle according to the present embodiment will be described. FIG. 1 is a side view schematically showing the vehicle according to the present embodiment. The vehicle 1 according to the present embodiment is, for example, an electric vehicle such as an electric car or a hybrid car that can be driven by a motor. The vehicle 1 includes a power storage device 2 and a vehicle skeleton 3. The power storage device 2 includes a battery that stores electric power supplied to the motor. The power storage device 2 is disposed on the bottom surface of the vehicle 1.

[0015] FIG. 2 is a perspective view schematically showing the vehicle skeleton 3. The vehicle skeleton 3 includes a left roof rail 10, a right roof rail 11, a left frame 12, a right frame 13, a first left pillar 14, a second left pillar 15, a third left pillar 16, a first right pillar 17, a second right pillar 18, and a third right pillar 19.

[0016] The left roof rail 10 and the right roof rail 11 are disposed above the vehicle skeleton 3. The left roof rail 10 and the right roof rail 11 are spaced apart from each other in the width direction D2 of the vehicle 1. Further, the left roof rail 10 and the right roof rail 11 are disposed so as to extend in the front-rear direction D1 of the vehicle 1.

[0017] The left frame 12 is an example of the "first frame" in the present disclosure, and the right frame 13 is an example of the "second frame" in the present disclosure. The left frame 12 and the right frame 13 are disposed at the bottom of the vehicle skeleton 3. The left frame 12 and the right frame 13 are spaced apart from each other in the width direction D2 of the vehicle 1. Further, the left frame 12 and the right frame 13 are disposed so as to extend in the front-rear direction D1 of the vehicle 1.

[0018] The first left pillar 14, the second left pillar 15, and the third left pillar 16 are disposed on the left side surface of the vehicle skeleton 3. The first left pillar 14 is provided so as to connect the front end of the left frame 12 and the front end of the left roof rail 10. The second left pillar 15 is provided so as to connect the central portion of the left frame 12 and the central portion of the left roof rail 10. The third left pillar 16 is provided so as to connect the rear end of the left frame 12 and the rear portion of the left roof rail 10. That is, the second left pillar 15 is disposed at an interval rearward of the first left pillar 14, and the third left pillar 16 is disposed at an interval rearward of the second left pillar 15.

[0019] The first right pillar 17, the second right pillar 18, and the third right pillar 19 are disposed on the right side surface of the vehicle skeleton 3. The first right pillar 17 is provided so as to connect the front end of the right frame 13 and the front end of the right roof rail 11. The second right pillar 18 is provided so as to connect the central portion of the right frame 13 and the central portion of the right roof rail 11. The third right pillar 19 is provided so as to connect the rear end of the right frame 13 and the rear portion of the right roof rail 11. That is, the second right pillar 18 is disposed at an interval rearward of the first right pillar 17, and the third right pillar 19 is disposed at an interval rearward of the second right pillar 18.

[0020] Each of the first left pillar 14 and the first right pillar 17 is an example of the "first pillar" in the present disclosure. Each of the second left pillar 15 and the second right pillar 18 is an example of the "second pillar" in the present disclosure. Each of the third left pillar 16 and the third right pillar 19 is an example of the "third pillar" in the present disclosure.

[0021] Referring to FIG. 1 again, the power storage device 2 is provided on the vehicle skeleton 3. FIG. 3 is a first perspective view schematically showing the power storage device 2. FIG. 4 is a second perspective view schematically showing the power storage device 2. FIG. 4 shows the power storage device 2 in a state where the upper case is removed.

[0022] Referring to FIGS. 3 and 4, the power storage device 2 includes a power storage module 21, a power storage module 22, and a housing case 23. The power storage module 21 is an example of the "first power storage module" in the present disclosure. The power storage module 22 is an example of the "second power storage module" in the present disclosure.

[0023] The housing case 23 houses the power storage module 21 and the power storage module 22. The housing case 23 includes a lower case 24 and an upper case 25.

[0024] The housing case 23 further includes support portions 26 and 27. The support portions 26 and 27 are fixed to the vehicle skeleton 3 (see FIG. 2). As an example, the support portions 26 and 27 are provided with holes 28 into which bolts are fitted. By fitting the bolts into the holes 28, the support portion 26 is fixed to the left frame 12, and the support portion 27 is fixed to the right frame 13.

[0025] FIG. 5 is a diagram schematically showing the vehicle skeleton 3 and the power storage device 2 when viewed from the front of the vehicle 1 with the power storage device 2 fixed to the vehicle skeleton 3. FIG. 6 is a diagram schematically showing the vehicle skeleton 3 and the power storage device 2 when viewed from above (direction D4 shown in FIG. 3) with the power storage device 2 fixed to the vehicle skeleton 3. As shown in FIGS. 5 and 6, the support portion 26 is fixed to the lower surface of the left frame 12, and the support portion 27 is fixed to the lower surface of the right frame 13. That is, the power storage device 2 is fixed to the vehicle skeleton 3.

[0026] Referring again to FIG. 4, when the power storage device 2 is fixed to the vehicle skeleton 3, the power storage module 21 is disposed between the left frame 12 and the right frame 13. More specifically, when the power storage module 21 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the power storage module 21 is disposed such that at least a part of the power storage module 21 overlaps the left frame 12 and the right frame 13. On the other hand, when the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the power storage module 22 does not overlap the left frame 12 and the right frame 13.

[0027] The power storage module 21 includes a plurality of power storage cells 51. The power storage cell 51 is an example of the "first power storage cell" in the present disclosure. The power storage cell 51 is arranged to extend in the vehicle width direction D2 of the vehicle 1.

[0028] The power storage module 22 is arranged on the power storage module 21. That is, in the vehicle 1, the power storage module 21 and the power storage module 22 are stacked in the vehicle vertical direction D3. The power storage module 22 includes a plurality of power storage cells 61. The power storage cell 61 is an example of the "second power storage cell" in the present disclosure. The power storage cell 61 is arranged to extend in the vehicle longitudinal direction D1 of the vehicle 1.

[0029] Each of the power storage cell 51 and the power storage cell 61 is a secondary battery, typically a lithium-ion secondary battery. The lithium-ion secondary battery is a battery using lithium as a charge carrier, and may include not only a general lithium-ion secondary battery with a liquid electrolyte but also a so-called all-solid-state battery using a solid electrolyte. Note that each of the power storage cell 51 and the power storage cell 61 is not limited to a lithium-ion secondary battery, and may be composed of a nickel-metal hydride secondary battery or other secondary batteries.

[0030] The size of the power storage cell 51 and the size of the power storage cell 61 may be the same or different. The case where the size of the power storage cell 51 and the size of the power storage cell 61 are the same is the case where all of the following three conditions are satisfied. · First condition: The length of the power storage cell 51 in the vehicle width direction D2 of the vehicle 1 is the same as the length of the power storage cell 61 in the vehicle longitudinal direction D1 of the vehicle 1 · Second condition: The length of the power storage cell 51 in the vehicle longitudinal direction D1 of the vehicle 1 is the same as the length of the power storage cell 61 in the vehicle width direction D2 of the vehicle 1 · Third condition: The length of the power storage cell 51 in the vehicle vertical direction D3 of the vehicle 1 is the same as the length of the power storage cell 61 in the vehicle vertical direction D3 of the vehicle 1

[0031] In the present disclosure, "having the same length" includes both the case where the lengths are exactly the same and the case where the lengths are substantially the same. In the present disclosure, "substantially the same" means that it includes some errors due to manufacturing variations or the like.

[0032] When the size of the power storage cell 51 and the size of the power storage cell 61 are the same, the design of the power storage device 2 becomes easy.

[0033] FIG. 7 is a diagram schematically showing an example of the power storage cell 51. The power storage cell 51 includes an end face 52 and an end face 53. The end face 52 and the end face 53 are arranged at intervals in the vehicle width direction D2 of the vehicle 1. The end face 52 is an example of the "first end face" in the present disclosure. The end face 53 is an example of the "second end face" in the present disclosure. In the power storage module 21, the power storage cell 51 arranged such that the end face 53 faces the left side of the vehicle 1 and the power storage cell 51 arranged such that the end face 52 faces the left side of the vehicle 1 are alternately arranged along the longitudinal direction D1 of the vehicle 1.

[0034] The power storage cell 51 includes a negative electrode terminal 54 and an exhaust valve 56 provided on the end face 52. Further, the power storage cell 51 includes a positive electrode terminal 55 provided on the end face 53. That is, a negative electrode terminal 54 and an exhaust valve 56 are provided at one end in the longitudinal direction of the power storage cell 51, and a positive electrode terminal 55 is provided at the other end in the longitudinal direction of the power storage cell 51. The negative electrode terminal 54 is an example of the "first external terminal" in the present disclosure. The exhaust valve 56 is an example of the "first exhaust valve" in the present disclosure. The exhaust valve 56 is configured to discharge the gas inside the power storage cell 51 to the outside of the power storage cell 51 when the internal pressure of the power storage cell 51 rises.

[0035] By connecting the negative electrode terminals 54 and the positive electrode terminals 55 of the power storage cells 51 adjacent to each other by a bus bar 57, a plurality of power storage cells 51 are connected in series.

[0036] FIG. 8 is a diagram schematically showing an example of the power storage cell 61. The power storage cell 61 includes an end face 62 and an end face 63. The end face 62 and the end face 63 are arranged at intervals in the front-rear direction D1 of the vehicle 1. The end face 62 is an example of the "third end face" in the present disclosure. The end face 63 is an example of the "fourth end face" in the present disclosure. In the power storage module 22, the power storage cells 61 arranged such that the end face 63 faces forward of the vehicle 1 and the power storage cells 61 arranged such that the end face 62 faces forward of the vehicle 1 are alternately arranged along the width direction D2 of the vehicle 1.

[0037] The power storage cell 61 includes a negative electrode terminal 64 and an exhaust valve 66 provided on the end face 62. The power storage cell 61 also includes a positive electrode terminal 65 provided on the end face 63. That is, at one end in the longitudinal direction of the power storage cell 61, the negative electrode terminal 64 and the exhaust valve 66 are provided, and at the other end in the longitudinal direction of the power storage cell 61, the positive electrode terminal 65 is provided. The negative electrode terminal 64 is an example of the "second external terminal" in the present disclosure. The exhaust valve 66 is an example of the "second exhaust valve" in the present disclosure. The exhaust valve 66 is configured to discharge the gas inside the power storage cell 61 to the outside of the power storage cell 61 when the internal pressure of the power storage cell 61 rises.

[0038] The negative electrode terminals 64 and the positive electrode terminals 65 of the power storage cells 61 adjacent to each other are connected by a bus bar 67, whereby a plurality of power storage cells 61 are connected in series.

[0039] Referring to FIG. 2 again, when the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the front end portion in the longitudinal direction of the power storage cell 61 of the power storage module 22 is arranged so as to overlap with the second left pillar 15 and the second right pillar 18. In the power storage cell 61 arranged such that the end face 63 faces forward of the vehicle 1, the front end portion in the longitudinal direction of the power storage cell 61 is the end face 63. In the power storage cell 61 arranged such that the end face 62 faces forward of the vehicle 1, the front end portion in the longitudinal direction of the power storage cell 61 is the end face 62.

[0040] Also, when viewing the power storage module 22 and the vehicle skeleton 3 from the side of the vehicle 1, the longitudinal rear end portion of the power storage cell 61 is arranged so as to overlap with the third left pillar 16 and the third right pillar 19. In the power storage cell 61 arranged such that the end face 63 faces the front of the vehicle 1, the longitudinal rear end portion of the power storage cell 61 is the end face 62. In the power storage cell 61 arranged such that the end face 62 faces the front of the vehicle 1, the longitudinal rear end portion of the power storage cell 61 is the end face 63.

[0041] As described above, the vehicle 1 in the present embodiment includes a power storage device 2 including a power storage module 21 and a power storage module 22. The power storage module 21 is arranged between the left frame 12 and the right frame 13, and the power storage cells 51 included in the power storage module 21 are arranged so as to extend in the vehicle width direction D2 of the vehicle 1. Further, the power storage module 22 is arranged on the power storage module 21, and the power storage cells 61 included in the power storage module 22 are arranged so as to extend in the longitudinal direction D1 of the vehicle 1.

[0042] In the vehicle 1 in the present embodiment, at least one of a negative electrode terminal and a positive electrode terminal is provided at one end portion in the longitudinal direction of the power storage cell. Therefore, protection is required for the end portion in the longitudinal direction of the power storage cell more than the end portion in the short side direction of the power storage cell. On the other hand, according to the vehicle 1 in the present embodiment, the left frame 12 and the right frame 13 protect the end portion in the longitudinal direction of the power storage cell 51 from an impact applied from the side of the vehicle 1. Further, the negative electrode terminal 54 and the exhaust valve 56 are provided at one end portion in the longitudinal direction of the power storage cell 51, and the positive electrode terminal 55 is provided at the other end portion in the longitudinal direction of the power storage cell 51. Therefore, according to the vehicle 1 in the present embodiment, the left frame 12 and the right frame 13 protect the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 from an impact applied from the side of the vehicle 1.

[0043] Further, according to the vehicle 1 in the present embodiment, the power storage cell 61 is arranged such that the longitudinal end portion of the power storage cell 61 does not face the side of the vehicle 1. Therefore, even if an impact force is applied from the side of the vehicle 1, it is difficult for the impact force to be applied to the longitudinal end portion of the power storage cell 61. The negative electrode terminal 64 and the exhaust valve 66 are provided at one longitudinal end portion of the power storage cell 61, and the positive electrode terminal 65 is provided at the other longitudinal end portion of the power storage cell 61. Therefore, according to the vehicle 1 in the present embodiment, even if an impact force is applied from the side of the vehicle 1, it is possible to suppress the impact force from being applied to the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66.

[0044] Therefore, according to the vehicle 1 in the present embodiment, when viewing the power storage device 2 and the vehicle skeleton 3 from the side of the vehicle 1, not only the power storage module 21 that overlaps with the left frame 12 and the right frame 13, but also the power storage module 22 that does not overlap with the left frame 12 and the right frame 13 is protected from the impact applied from the side of the vehicle 1.

[0045] In the front-rear direction D1 of the vehicle 1, the front end portion of the power storage cell 61 is provided at a position away from the front end portion of the vehicle 1. Therefore, even if an impact force is applied to the front end portion of the vehicle 1, it is suppressed that the impact force is applied to the front end portion of the power storage cell 61. Similarly, in the front-rear direction D1 of the vehicle 1, the rear end portion of the power storage cell 61 is provided at a position away from the rear end portion of the vehicle 1. Therefore, even if an impact force is applied to the rear end portion of the vehicle 1, it is suppressed that the impact force is applied to the rear end portion of the power storage cell 61.

[0046] Further, according to the vehicle 1 in the present embodiment, a plurality of power storage modules are stacked in the vertical direction D3 of the vehicle 1. Therefore, the limited space at the lower part of the vehicle 1 is effectively utilized, and the large capacity of the power storage device 2 is realized.

[0047] In the vehicle 1 according to the present embodiment, when the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the power storage module 22 is arranged such that the front end portion in the longitudinal direction of the power storage cell 61 overlaps with the second left pillar 15 and the second right pillar 18. Thereby, the front end portion in the longitudinal direction of the power storage cell 61 is protected from the impact applied from the side of the vehicle 1.

[0048] In the vehicle 1 according to the present embodiment, when the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the power storage module 22 is arranged such that the rear end portion in the longitudinal direction of the power storage cell 61 overlaps with the third left pillar 16 and the third right pillar 19. Thereby, the rear end portion in the longitudinal direction of the power storage cell 61 is protected from the impact applied from the side of the vehicle 1.

[0049] In the above embodiment, the power storage module 21 included a plurality of power storage cells 51, but the power storage module 21 may include at least one power storage cell 51.

[0050] In the above embodiment, the power storage cells 51 were arranged so as to extend in the width direction D2 of the vehicle 1, but the power storage cells 51 may be arranged so as to extend in the front-rear direction D1 of the vehicle 1.

[0051] In the above embodiment, the power storage module 22 included a plurality of power storage cells 61, but the power storage module 22 may include at least one power storage cell 61.

[0052] When the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the front end portion in the longitudinal direction of the power storage cell 61 may not overlap with the second left pillar 15 and the second right pillar 18. When the power storage module 22 and the vehicle skeleton 3 are viewed from the side of the vehicle 1, the rear end portion in the longitudinal direction of the power storage cell 61 may not overlap with the third left pillar 16 and the third right pillar 19.

[0053] [Modification Example 1] In the above-described embodiment, the negative electrode terminal 54 and the exhaust valve 56 were provided at one end in the longitudinal direction of the power storage cell 51, and the positive electrode terminal 55 was provided at the other end in the longitudinal direction of the power storage cell 51. However, the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 only need to be provided at at least one end in the longitudinal direction of the power storage cell 51. For example, the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 may be provided only at one end in the longitudinal direction of the power storage cell 51.

[0054] More specifically, the power storage cell 51 includes two end faces arranged at intervals in the width direction D2 of the vehicle 1, a negative electrode terminal 54, a positive electrode terminal 55, and an exhaust valve 56, and the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 may be provided only on one of the two end faces. In that case, all the power storage cells 51 included in the power storage module 21 are arranged such that the end face on which the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 are provided faces the left side of the vehicle 1. Alternatively, all the power storage cells 51 included in the power storage module 21 are arranged such that the end face on which the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 are provided faces the right side of the vehicle 1. The negative electrode terminals 54 and the positive electrode terminals 55 of the power storage cells 51 adjacent to each other are connected by the bus bar 57, whereby a plurality of power storage cells 51 are connected in series.

[0055] Even in such a case, the left frame 12 and the right frame 13 protect the negative electrode terminal 54, the positive electrode terminal 55, and the exhaust valve 56 from the impact applied from the side of the vehicle 1.

[0056] [Modification 2] In the above-described embodiment, the negative electrode terminal 64 and the exhaust valve 66 were provided at one end in the longitudinal direction of the power storage cell 61, and the positive electrode terminal 65 was provided at the other end in the longitudinal direction of the power storage cell 61. However, the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 only need to be provided at at least one end in the longitudinal direction of the power storage cell 61. For example, the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 may be provided only at one end in the longitudinal direction of the power storage cell 61.

[0057] More specifically, the power storage cell 61 includes two end faces arranged at intervals in the front-rear direction D1 of the vehicle 1, a negative electrode terminal 64, a positive electrode terminal 65, and an exhaust valve 66. The negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 may be provided only on one of the two end faces. In that case, all the power storage cells 61 included in the power storage module 22 are arranged such that the end face on which the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 are provided faces forward of the vehicle 1. Alternatively, all the power storage cells 61 included in the power storage module 22 are arranged such that the end face on which the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 are provided faces rearward of the vehicle 1. The negative electrode terminals 64 and positive electrode terminals 65 of adjacent power storage cells 61 are connected by a bus bar 67, whereby a plurality of power storage cells 61 are connected in series.

[0058] Even in such a case, the negative electrode terminal 64, the positive electrode terminal 65, and the exhaust valve 66 are protected from impacts applied from the side of the vehicle 1.

[0059] [Modification Example 3] In the above-described embodiment, the power storage device 2 included two power storage modules (power storage module 21 and power storage module 22). However, the power storage device 2 may include three or more power storage modules. In that case, it is sufficient that two or more of the three or more power storage modules are stacked in the vertical direction D3 of the vehicle 1. Also, for at least one of the three or more power storage modules, the configuration and arrangement may be the same as those of the power storage module 21, and for the remaining power storage modules of the three or more power storage modules, the configuration and arrangement may be the same as those of the power storage module 22.

[0060] The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is shown not by the above description but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims be included.

Description of Reference Numerals

[0061] 1 Vehicle, 2 Power storage device, 3 Vehicle skeleton, 10 Left roof rail, 11 Right roof rail, 12 Left frame, 13 Right frame, 14 First left pillar, 15 Second left pillar, 16 Third left pillar, 17 First right pillar, 18 Second right pillar, 19 Third right pillar, 21, 22 Power storage modules, 23 Housing case, 24 Lower case, 25 Upper case, 26, 27 Support portions, 28 Hole, 51, 61 Power storage cells, 52, 53, 62, 63 End faces, 54, 64 Negative electrode terminals, 55, 65 Positive electrode terminals, 56, 66 Exhaust valves, 57, 67 Bus bars, D1 Front - rear direction, D2 Width direction, D3 Up - down direction, D4 Direction.

Claims

1. A vehicle comprising a vehicle skeleton and a power storage device provided on the vehicle skeleton, wherein the vehicle skeleton includes a first frame and a second frame spaced apart from the first frame in the vehicle width direction, the first frame and the second frame are formed to extend in the vehicle longitudinal direction, the power storage device includes a first power storage module including a first power storage cell and a second power storage module including a second power storage cell and disposed on the first power storage module, the first power storage module is disposed between the first frame and the second frame, the first power storage cell is disposed to extend in the vehicle width direction, the first power storage cell includes a first end face and a second end face arranged at intervals in the vehicle width direction and a first external terminal provided on the first end face, the second power storage cell is disposed to extend in the vehicle longitudinal direction, and the second power storage cell includes a third end face and a fourth end face arranged at intervals in the vehicle longitudinal direction and a second external terminal provided on the third end face.

2. The vehicle skeleton includes a first pillar connected to the first frame, a second pillar disposed at a distance behind the first pillar and connected to the first frame, and a third pillar disposed at a distance behind the second pillar and connected to the first frame, wherein when the second power storage module and the vehicle skeleton are viewed from the side of the vehicle, a front end portion of the second power storage cell is disposed so as to overlap the second pillar.

3. The vehicle skeleton includes a first pillar connected to the first frame, a second pillar disposed at a distance behind the first pillar and connected to the first frame, and a third pillar disposed at a distance behind the second pillar and connected to the first frame, wherein when the second power storage module and the vehicle skeleton are viewed from the side of the vehicle, a rear end portion of the second power storage cell is disposed so as to overlap the third pillar.

4. The size of the first power storage cell is the same as the size of the second power storage cell.

5. The first power storage cell further includes a first exhaust valve provided on the first end face. ​ The vehicle according to claim 1, wherein the second power storage cell further includes a second exhaust valve provided on the third end face.

Images