JP7699621B2 - Battery pack mounting structure for electric vehicles - Google Patents

Description

The present invention relates to a battery pack mounting structure for an electric vehicle.

Battery packs are installed in electric vehicles such as hybrid vehicles (HVs) and electric vehicles (EVs). During the assembly process of electric vehicles, the battery packs are fixed to bolts installed on the vehicle body via brackets installed on the battery packs.

During the assembly process of electric vehicles, the battery pack and bracket are suspended, for example, by a crane. Then, holes in the bracket are aligned with the bolts, and the crane lowers the battery pack and bracket so that the bolts are inserted into the holes in the bracket.

JP 2022-092907 A

The holes in the brackets and the bolts are aligned while the heavy battery pack is suspended from a crane. This means that it is not easy to accurately align the holes in the brackets and the bolts, which can make the assembly process time-consuming.

The object of the present invention is to provide a battery pack mounting structure for an electric vehicle that can improve the workability of fixing a battery pack to a fixing member via a bracket.

To achieve the above object, the battery pack mounting structure for an electric vehicle according to the present invention comprises a vehicle body, a battery pack, an intermediate member, a bracket, and a fixing member. The battery pack is disposed above the vehicle body. The intermediate member is provided with a first opening. The bracket protrudes from the battery pack in a first direction intersecting the up-down direction, and is provided with a second opening. The fixing member protrudes upward from the vehicle body, penetrating the first opening and the second opening, and fixes the bracket. The intermediate member has a guide portion capable of guiding the bracket from a position where the fixing member is out of the second opening to a position where the fixing member passes through the second opening.

According to this configuration, when the bracket is fixed to the fixed member, the guide portion of the intermediate member guides the fixed member to a position where the fixed member passes through the second opening. This allows the battery pack mounting structure for an electric vehicle to improve the workability of fixing the battery pack to the fixed member via the bracket.

In the battery pack mounting structure for an electric vehicle according to the present invention, the intermediate member has a first surface in which a first opening is provided and which faces the bracket. The guide portion has two second surfaces located above the first surface and spaced apart from each other in a second direction along the first surface, and two third surfaces extending between the two second surfaces and both ends of the first surface in the second direction. The two second surfaces extend obliquely relative to the vertical direction so as to taper downward. The angle between the two second surfaces and the vertical direction is greater than the angle between the two third surfaces and the vertical direction. The upper ends of the two third surfaces are located above the upper end of the fixing member.

According to this configuration, the two second surfaces are tapered toward the space between the two third surfaces. Therefore, when the bracket is fixed to the fixing member, it first comes into contact with one of the two second surfaces and is guided along the second surface toward the space between the two third surfaces. Then, the bracket comes into contact with at least one of the two third surfaces and is guided downward along the third surface. While the bracket is being guided by the third surface, the fixing member is inserted into the second opening. Then, the bracket comes into contact with the first surface with the fixing member penetrating the second opening, and the placement of the bracket is completed. That is, when the bracket is fixed to the fixing member, the guide portion can guide the bracket to a position where the fixing member penetrates the second opening. Therefore, the battery pack mounting structure for an electric vehicle can improve the workability of fixing the battery pack to the fixing member via the bracket.

In addition, in the battery pack mounting structure for an electric vehicle according to the present invention, the bracket has a fourth surface facing the first surface and having a second opening, a fifth surface facing the third surface, and a curved surface extending in an arc between the fourth surface and the fifth surface.

According to this configuration, when the bracket is fixed to the fixing member, the curved surface of the bracket contacts the second and third surfaces of the guide portion. Therefore, the bracket is less likely to get caught on the guide portion compared to when the bracket contacts the guide portion at an acute angle, and thus the intermediate member is less likely to be damaged, thereby reducing its rigidity.

According to the present invention, the battery pack mounting structure for an electric vehicle can improve the workability of fixing the battery pack to the fixing member via the bracket.

FIG. 1 is a plan view showing a portion of an electric vehicle according to one embodiment. FIG. 2 is a cross-sectional view showing a part of the electric vehicle according to the present embodiment taken along line F2-F2 in FIG. FIG. 3 is a plan view showing the bracket of the electric vehicle according to the present embodiment. FIG. 4 is a cross-sectional view showing the bracket of the electric vehicle according to the present embodiment taken along line F4-F4 in FIG.

[Embodiment]
Hereinafter, an embodiment of the electric vehicle 1 will be described in detail with reference to the accompanying drawings. The configuration of the embodiment described below, and the actions and results (effects) brought about by the configuration are merely examples, and are not limited to the contents described below. Note that in this specification, ordinal numbers are used only to distinguish parts or members, and do not indicate order or priority.

The outline and structure of the electric vehicle 1 according to the embodiment will be described below. FIG. 1 is a plan view showing a part of the electric vehicle 1 according to one embodiment. FIG. 2 is a cross-sectional view showing a part of the electric vehicle 1 according to the embodiment along the line F2-F2 in FIG. 1.

As shown in Figures 1 and 2, the electric vehicle 1 includes a vehicle body 10, a battery pack 13, a number of brackets 14a, 14b, 14c, and 14d, a waterproof tray 15, and a number of bolts 16a, 16b, 16c, and 16d. The waterproof tray 15 is an example of an intermediate member. The bolts 16 are an example of a fixing member.

For convenience, three mutually orthogonal directions are defined in each of the following figures. The +X and -X directions are the front-to-rear directions of the electric vehicle 1, and the positive direction of the X axis is the forward direction of the electric vehicle 1. The +Y and -Y directions are the vehicle width direction (left-right direction) of the electric vehicle 1, and the positive direction of the Y axis is the rightward direction of the electric vehicle 1. The +Z and -Z directions are the height direction (up-down direction) of the electric vehicle 1, and the positive direction of the Z axis is the upward direction of the electric vehicle 1.

The vehicle body 10 has a floor panel 17, a pair of cross members 18, and a pair of side members 19. The vehicle body 10 may have other components. The floor panel 17 forms, for example, the floor of the electric vehicle 1.

The pair of cross members 18 are spaced apart from each other in the front-to-rear direction (±X direction). Each of the pair of cross members 18 extends in a substantially left-to-right direction (±Y direction). The pair of side members 19 are spaced apart from each other in the left-to-right direction. Each of the pair of side members 19 extends in a substantially front-to-rear direction.

The left-right ends of the cross member 18 are connected to a pair of side members 19. Therefore, the pair of side members 19 are connected to each other by the cross member 18. Furthermore, the floor panel 17 is connected to the pair of cross members 18 and the pair of side members 19.

The battery pack 13 is a secondary battery (for example, a lithium-ion battery) that supplies electricity to various components of the electric vehicle 1. The battery pack 13 has, for example, a plurality of cells and a case that houses the plurality of cells.

The battery pack 13 is disposed above the vehicle body 10. Specifically, the battery pack 13 is located between a pair of cross members 18 and between a pair of side members 19. The battery pack 13 is located below the front seats of the vehicle. The battery pack 13 may also be located below the rear seats of the vehicle.

Brackets 14a and 14b are connected to the lower end of battery pack 13 and protrude forward (+X direction) or left/right (±Y direction) from battery pack 13. The forward or left/right direction is a direction that intersects with the up/down direction and is an example of a first direction. Brackets 14a and 14b are disposed with a gap between them in the left/right direction. Bracket 14a is spaced to the right from bracket 14b.

Brackets 14c and 14d are connected to the lower end of battery pack 13 and protrude rearward (-X direction) from the rear end (-X direction) of battery pack 13. Brackets 14c and 14d are spaced apart in the left-right direction (±Y direction). Bracket 14c is spaced to the right (+Y direction) from bracket 14d.

Figure 3 is a plan view showing bracket 14b of electric vehicle 1 of this embodiment. Figure 4 is a cross-sectional view showing bracket 14b of electric vehicle 1 of this embodiment along line F4-F4 in Figure 3. As shown in Figure 4, bracket 14b has a first alignment surface 21, a second alignment surface 22, and a curved surface 23. The first alignment surface 21 is an example of a fourth surface. The second alignment surface 22 is an example of a fifth surface. Meanwhile, brackets 14a, 14c, and 14d have the first alignment surface 21. Brackets 14a, 14c, and 14d may further have the second alignment surface 22 and the curved surface 23.

The first alignment surface 21 is provided on the lower ends of the brackets 14a, 14b, 14c, and 14d that protrude from the battery pack 13, and faces downward (in the -Z direction). The first alignment surface 21 is formed to be approximately flat.

A through hole 25 is provided in each of brackets 14a, 14b, 14c, and 14d. The through hole 25 is an example of a second opening. The through hole 25 passes through brackets 14a, 14b, 14c, and 14d in the vertical direction (±Z direction) and opens to the first alignment surface 21. In other words, the through hole 25 is provided in the first alignment surface 21.

The second alignment surface 22 is provided at the end of the bracket 14b in the left direction (-Y direction) and faces approximately in the left direction (-Y direction). The second alignment surface 22 is formed to be approximately flat. The second alignment surface 22 is formed, for example, by the end of the plate-shaped bracket 14b bent upward. The second alignment surface 22 may be provided at the end of the bracket 14b in the right direction (+Y direction) and face approximately in the right direction (+Y direction).

The curved surface 23 extends in an arc shape between the first alignment surface 21 and the second alignment surface 22. The first alignment surface 21, the second alignment surface 22 and the curved surface 23 are formed continuously.

As shown in FIG. 1, the waterproof tray 15 is disposed above the vehicle body 10. The waterproof tray 15 protects the battery pack 13 from liquids inside the electric vehicle 1, for example. Note that the intermediate member is not limited to the waterproof tray 15. For example, the intermediate member may be another part, such as a holder that holds a harness extending from the battery pack 13.

The waterproof tray 15 is made of, for example, synthetic resin. This prevents the battery pack 13 from being damaged even if the waterproof tray 15 comes into contact with the battery pack 13 during assembly of the electric vehicle 1.

The waterproof tray 15 has a main body 30 and multiple fastening parts 31a, 31b, 31c, and 31d. The main body 30 is formed in a box shape that is open at the top and houses the battery pack 13. The main body 30 covers the battery pack 13 from below, the front, the rear, the left, and the right.

A part of the main body 30 is disposed between at least a part of the battery pack 13 and the floor panel 17. Another part of the main body 30 is disposed between the battery pack 13 and one of the cross members 18 spaced forward (+X direction) from the battery pack 13. Therefore, the waterproof tray 15 can absorb the impact on the battery pack 13 when the electric vehicle 1 collides with an object in front of it.

The other part of the main body 30 is located between the battery pack 13 and the other cross member 18 that is spaced rearward (in the -X direction) from the battery pack 13. The other part of the main body 30 is located between the battery pack 13 and a pair of side members 19.

If the intermediate member is a holder rather than a waterproof tray 15, the intermediate member does not have to cover the battery pack 13. For example, the majority of the intermediate member does not have to be located between the battery pack 13 and the floor panel 17. In this case, the intermediate member is, for example, positioned around the battery pack 13.

The fastening parts 31a and 31b protrude forward (+X direction) or left-right (±Y direction) from the main body 30. The fastening parts 31a and 31b are arranged with a gap between them in the left-right direction (±Y direction). The fastening part 31a is spaced to the right (+Y direction) from the fastening part 31b.

The fastening portions 31c and 31d protrude rearward (in the -X direction) from the rear end (in the -X direction) of the main body 30. The fastening portions 31c and 31d are spaced apart in the left-right direction (in the ±Y direction). The fastening portion 31c is spaced to the right (in the +Y direction) from the fastening portion 31d.

The fastening portion 31b has a bottom surface 35 and a guide portion 36. The fastening portions 31a, 31c, and 31d have a bottom surface 35. The bottom surface 35 is an example of a first surface. The bottom surface 35 faces upward (in the +Z direction). The bottom surface 35 is formed to be approximately flat. The bottom surfaces 35 of the fastening portions 31a, 31b, 31c, and 31d face the corresponding brackets 14a, 14b, 14c, and 14d.

A through hole 41 is provided in each of the fastening portions 31a, 31b, 31c, and 31d. The through hole 41 is an example of a first opening. The through hole 41 passes through the fastening portions 31a, 31b, 31c, and 31d in the up-down direction (±Z direction) and opens to the bottom surface 35. That is, the through hole 41 is provided in the bottom surface 35.

The guide portion 36 is provided to cover the bracket 14b from the left and right directions (±Y directions). The guide portion 36 has two tapered surfaces 37 and two upright surfaces 38. The tapered surfaces 37 are an example of a second surface, and the upright surfaces 38 are an example of a third surface.

The two tapered surfaces 37 are located above the bottom surface 35 (in the +Z direction) and are spaced apart from each other in the left-right direction (in the ±Y direction). The left-right direction is a direction along the bottom surface 35 and is an example of the second direction. The two tapered surfaces 37 extend in a substantially straight line and face diagonally upward so as to face each other. In other words, the two tapered surfaces 37 extend diagonally in the up-down direction (in the ±Z direction) so as to taper downward (in the -Z direction).

The two upright surfaces 38 extend between the two tapered surfaces 37 and both ends of the bottom surface 35 in the left-right direction (±Y direction). The two upright surfaces 38 extend in a substantially straight line and face diagonally upwards so as to face each other.

The two upright surfaces 38 extend obliquely in the vertical direction (±Z direction) so as to taper downward. The two upright surfaces 38 may also extend in the vertical direction. The angle between the two tapered surfaces 37 and the vertical direction is greater than the angle between the two upright surfaces 38 and the vertical direction.

The lower (-Z direction) ends of the two upright surfaces 38 are connected to the ends of the bottom surface 35 in the left-right direction (±Y direction). In addition, the upper (+Z direction) ends of the two upright surfaces 38 are connected to the lower end of the tapered surface 37. In other words, a continuous surface is formed by the two tapered surfaces 37, the two upright surfaces 38, and the bottom surface 35.

The bottom surface 35 and the guide portion 36 form a recess 39. The recess 39 is a depression that is provided in the fastening portion 31b and is open upward. Note that the recess 39 may be formed not only by the bottom surface 35 and the guide portion 36, but also by other portions.

The bracket 14b is accommodated in the recess 39 of the fastening portion 31b. In the recess 39, the bracket 14b is supported by the bottom surface 35 and is located between the two upright surfaces 38. That is, the first alignment surface 21 of the bracket 14b faces the bottom surface 35. Furthermore, the second alignment surface 22 of the bracket 14b faces one of the two upright surfaces 38.

The guide portion 36 may be provided not only on the fastening portion 31b but also on the fastening portions 31a, 31c, and 31d. When the guide portion 36 is provided on the fastening portions 31a, 31c, and 31d, the guide portion 36 is provided so as to cover the left-right direction (±Y direction) of the brackets 14a, 14c, and 14d.

The bolts 16a and 16b are attached to a bracket that is integrated with the floor panel 17, for example. The bracket is fixed to the main body of the floor panel 17 by, for example, welding. The bolts 16a and 16b are fixed to the bracket by, for example, welding. Note that the bolts 16a and 16b may be attached to the floor panel 17 by other means, or may be attached to another part of the vehicle body 10.

The bolts 16a and 16b protrude upward (in the +Z direction) from the floor panel 17 (bracket) through the through holes 25 and 41. The brackets 14a and 14b and the fastening parts 31a and 31b are fixed to the bolts 16a and 16b by screwing nuts onto the bolts 16a and 16b. As a result, the brackets 14a and 14b and the fastening parts 31a and 31b are attached to the floor panel 17 by fastening.

Bolts 16c and 16d protrude upward (+Z direction) through through holes 25 and 41 from cross member 18, which is spaced rearward (-X direction) from battery pack 13. The length of bolts 16c and 16d is shorter than the length of bolts 16a and 16b.

By screwing nuts onto the bolts 16c and 16d, the brackets 14c and 14d and the fastening parts 31c and 31d are fixed to the bolts 16c and 16d. As a result, the brackets 14c and 14d and the fastening parts 31c and 31d are attached to the cross member 18 by fastening.

The tips of bolts 16a, 16b, 16c, and 16d taper upward. For example, the tips of bolts 16a, 16b, 16c, and 16d are formed in a conical or hemispherical shape. However, the shape of the tips of bolts 16a, 16b, 16c, and 16d is not limited to this.

The bolt 16b is located in the recess 39. The two upright surfaces 38 face the bolt 16b. The upper ends of the two upright surfaces 38 are located higher than the upper end of the bolt 16b. Note that the position of the upper end of the bolt 16b is not limited to this example.

Below, an example of the process for installing the battery pack 13 is described. First, the waterproof tray 15 is placed above the floor panel 17 so that the bolts 16a, 16b, 16c, and 16d pass through the through holes 41 of the waterproof tray 15. The waterproof tray 15, which is made of synthetic resin, is lightweight and can be easily placed in the desired position.

Next, the battery pack 13 is hung, for example, by a crane and placed inside the waterproof tray 15. At this time, the bracket 14b is first aligned. The second alignment surface 22 or the curved surface 23 of the bracket 14b is brought into contact with one of the two tapered surfaces 37 of the guide portion 36 provided on the fastening portion 31b.

The battery pack 13 is moved downward with the bracket 14b in contact with the tapered surface 37. The bracket 14b moves downward along the tapered surface 37, thereby adjusting its position in the left-right direction (±Y direction). In other words, the two tapered surfaces 37 guide the bracket 14b toward the space between the two upright surfaces 38.

When the bracket 14b passes through the space between the two tapered surfaces 37, the bracket 14b comes into contact with at least one of the two upright surfaces 38. With the bracket 14b in contact with the upright surface 38, the battery pack 13 is moved downward.

The bracket 14b is further adjusted in the left-right direction by moving downward along the upright surfaces 38. The two upright surfaces 38 come into contact with the bracket 14b, so that the position of the through hole 25 of the bracket 14b and the position of the bolt 16b are approximately aligned.

As bracket 14b moves downward, bolt 16b is inserted into through hole 25 of bracket 14b. Then, with bolt 16b passing through through hole 25, bracket 14b comes into contact with bottom surface 35, and bracket 14b is positioned in recess 39.

When the tip of the bolt 16b is conical, the bolt 16b can be easily inserted into the through hole 25 even if the central axis of the bolt 16b is misaligned with the central axis of the through hole 25. This improves the ease of inserting the bolt 16b into the through hole 25.

The long bolts 16a, 16b are inserted into the through holes 25 before the short bolts 16c, 16d. This allows the worker to first align the bolts 16a, 16b, which are easily visible from the same direction. When the bolts 16a, 16b are inserted into the through holes 25 of the brackets 14a, 14b, the bolts 16c, 16d are less likely to interfere with the brackets 14c, 14d.

The two upright surfaces 38 come into contact with the bracket 14b, restricting the bracket 14b from moving left and right (±Y directions) and from rotating around the bolt 16b. The bolt 16b also restricts the bracket 14b from moving forward and backward (±X directions) by being inserted into the through hole 25. Therefore, when the bolt 16b is inserted into the through hole 25, the position of the through hole 25 of the brackets 14a, 14c, and 14d approximately coincides with the position of the bolts 16a, 16c, and 16d.

While bracket 14b moves downward, bolts 16a, 16c, and 16d are inserted into through-holes 25 of brackets 14a, 14c, and 14d. Therefore, brackets 14c and 14d, which are located behind battery pack 13 (-X direction), do not require alignment.

As described above, the guide portion 36 guides the bracket 14b from a position where the bolt 16b is out of the through hole 25 to a position where the bolt 16b passes through the through hole 25. Note that the means by which the guide portion 36 guides the bracket 14b is not limited to the means described above. For example, the guide portion 36 may align the bracket 14b in the front-rear direction (±X direction).

The bracket 14b is guided to the desired position by the guide portion 36, for example, by being lowered by a crane while in contact with the tapered surface 37 and the upright surface 38. Therefore, the guide portion 36 can easily align the heavy battery pack 13.

When the bolts 16a, 16b, 16c, and 16d are inserted into all of the through holes 25 of the brackets 14a, 14b, 14c, and 14d, the brackets 14a, 14b, 14c, and 14d are fastened to the floor panel 17 by the bolts 16a, 16b, 16c, and 16d and nuts. This completes the fastening of the battery pack 13 and the brackets 14a, 14b, 14c, and 14d to the floor panel 17.

When the bracket 14b is aligned, the bracket 14b comes into contact with the tapered surface 37 and the upright surface 38. However, the bracket 14b comes into contact with the tapered surface 37 and the upright surface 38 of the guide portion 36 at the curved surface 23. Therefore, compared to when the bracket 14b comes into contact with the guide portion 36 at an acute angle, the bracket 14b is less likely to get caught on the guide portion 36, and thus the rigidity of the waterproof tray 15 is less likely to decrease due to damage to the waterproof tray 15.

In addition, because bracket 14b is easily positioned, when battery pack 13 is suspended by a crane, battery pack 13, brackets 14a, 14b, 14c, 14d, manufacturing equipment such as the crane, are less likely to come into contact with surrounding parts such as floor panel 17. This reduces damage to battery pack 13, surrounding parts such as floor panel 17, and manufacturing equipment such as the crane.

Furthermore, no additional equipment is required to realize the mounting structure for the battery pack 13 described above. Therefore, the mounting structure for the battery pack 13 described above can improve productivity without increasing production costs.

In the above embodiment, the electric vehicle 1 includes a vehicle body 10, a battery pack 13, a bracket 14b, a waterproof tray 15, and a bolt 16b. The battery pack 13 is disposed above a floor panel 17. The bracket 14b protrudes forward (+X direction) from the battery pack 13 and has a through hole 25. The waterproof tray 15 has a through hole 41. The bolt 16b protrudes upward (+Z direction) from the floor panel 17 through the through hole 41 and the through hole 25 to fix the bracket 14b. The waterproof tray 15 has a guide portion 36 that can guide the bracket 14b from a position where the bolt 16b is out of the through hole 25 to a position where the bolt 16b passes through the through hole 25.

In the above-described configuration, when the bracket 14b is fixed to the bolt 16b, the guide portion 36 of the waterproof tray 15 guides the bolt 16b to a position where the bolt passes through the through hole 25. This allows the mounting structure of the battery pack 13 to improve the workability of fixing the battery pack 13 to the bolt 16b via the bracket 14b.

In this embodiment, the waterproof tray 15 has a bottom surface 35 with a through hole 41 facing the bracket 14b. The guide portion 36 has two tapered surfaces 37 located above the bottom surface 35 (+Z direction) and spaced apart from each other in the left-right direction (±Y direction), and an upright surface 38 extending between the two tapered surfaces 37 and both ends of the bottom surface 35 in the left-right direction (±Y direction). The two tapered surfaces 37 extend obliquely in the up-down direction (±Z direction) so as to taper downward. The angle between the two tapered surfaces 37 and the up-down direction (±Z direction) is greater than the angle between the two upright surfaces 38 and the up-down direction (±Z direction). The upper (+Z direction) ends of the two upright surfaces 38 are located above the upper (+Z direction) ends of the bolt 16b.

In the above-mentioned configuration, the two tapered surfaces 37 are formed in a tapered shape toward the space between the two upright surfaces 38. Therefore, when the bracket 14b is fixed to the bolt 16b, it first comes into contact with one of the two tapered surfaces 37 and is guided along the tapered surface 37 toward the space between the two upright surfaces 38. Then, the bracket 14b comes into contact with at least one of the two upright surfaces 38 and is guided downward (in the -Z direction) along the upright surface 38. While the bracket 14b is being guided to the upright surface 38, the bolt 16b is inserted into the through hole 25. Then, with the bolt 16b penetrating the through hole 25, the bracket 14b comes into contact with the bottom surface 35, and the arrangement of the bracket 14b is completed. That is, when the bracket 14b is fixed to the bolt 16b, the guide portion 36 can guide the bolt 16b to a position where the bolt 16b penetrates the through hole 25. Therefore, the mounting structure of the battery pack 13 can improve the workability of fixing the battery pack 13 to the bolt 16b via the bracket 14b.

In this embodiment, the bracket 14b has a first alignment surface 21 that faces the bottom surface 35 and has a through hole 25, a second alignment surface 22 that faces the upright surface 38, and a curved surface 23 that extends in an arc between the first alignment surface 21 and the second alignment surface 22.

In the above-described configuration, when bracket 14b is fixed to bolt 16b, bracket 14b contacts tapered surface 37 and upright surface 38 of guide portion 36 at curved surface 23. Therefore, bracket 14b is less likely to get caught on guide portion 36 than when bracket 14b contacts guide portion 36 at an acute angle, and thus the rigidity of waterproof tray 15 is less likely to decrease due to damage to waterproof tray 15.

Although the embodiment of the present invention has been described above, the above-mentioned embodiment is presented as an example and is not intended to limit the scope of the present invention. This new embodiment can be embodied in various other forms. Furthermore, various omissions, substitutions, and modifications can be made without departing from the gist of the invention. Furthermore, this embodiment is included in the scope and gist of the invention, and is included in the scope of the invention and its equivalents described in the claims.

REFERENCE SIGNS LIST 1 Electric vehicle 10 Vehicle body 13 Battery pack 14a, 14b, 14c, 14d Bracket 15 Waterproof tray 16a, 16b, 16c, 16d Bolt 17 Floor panel 21 First alignment surface 22 Second alignment surface 23 Curved surface 25 Through hole 35 Bottom surface 36 Guide portion 37 Tapered surface 38 Upright surface 39 Recess 41 Through hole

Claims (2)

The car body and
A battery pack disposed above the vehicle body;
an intermediate member having a first opening;
a bracket protruding from the battery pack in a first direction intersecting with a top-bottom direction and having a second opening;
a fixing member that protrudes upward from the vehicle body through the first opening and the second opening, and to which the bracket is fixed; and
Equipped with
the intermediate member has a guide portion capable of guiding the bracket from a position where the fixing member is out of the second opening to a position where the fixing member passes through the second opening, and a first surface on which the first opening is provided and facing the bracket ,
the guide portion has two second surfaces located above the first surface and spaced apart from each other in a second direction along the first surface, and two third surfaces extending between the two second surfaces and both ends of the first surface in the second direction,
The two second surfaces extend obliquely with respect to the up-down direction so as to taper downward,
an angle between the two second surfaces and the vertical direction is greater than an angle between the two third surfaces and the vertical direction;
The upper ends of the two third surfaces are located above an upper end of the fixing member.
Battery pack mounting structure for electric vehicles. The bracket has a fourth surface facing the first surface and in which the second opening is provided, a fifth surface facing the third surface, and a curved surface extending in an arc shape between the fourth surface and the fifth surface.
The battery pack mounting structure for an electric vehicle according to claim 1.

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