JP2020164020A - Attachment structure of battery pack - Google Patents

Abstract

To provide an attachment structure of a battery pack which can suppress the deformation of side members to the inside at a side collision of a vehicle.SOLUTION: An attachment structure of a battery pack comprises: a pair of side members arranged at both sides in a vehicle width direction along a vehicle fore-and-aft direction; a floor panel which is bridged on a pair of the side members, and constitutes a bottom face of a cargo chamber of a vehicle; a battery pack arranged on the floor panel so that its longitudinal direction progresses along the vehicle width direction; and a bracket extending in the longitudinal direction of the battery pack, joined to a lower face of the battery pack, and fixed to the floor panel at its one end part and the other end part on a pair of the side members. The bracket has a pair of leg parts which are divided into two pieces in the vehicle fore-and-aft direction at its one end part and the other end part, and fixed to the floor panel at a pair of the leg parts.SELECTED DRAWING: Figure 5

Description

The present disclosure relates to a battery pack mounting structure.

Patent Document 1 discloses a high-voltage component pack mounted in the vehicle interior of an electric vehicle. The high-voltage component pack is stored in a storage recess provided on the floor panel, and is fixed to one of the side members installed on both sides in the vehicle width direction by a pair of brackets arranged at intervals in the vehicle front-rear direction. ing.

Japanese Unexamined Patent Publication No. 2016-177943

In the high-voltage component pack disclosed in Patent Document 1, when the side member is deformed inward at the time of a side collision of the vehicle body, the high-voltage component pack may be pushed and crushed by the deformed side member.

However, when the high-voltage component pack is a large-capacity battery pack, if the large-capacity battery pack is pushed by the deformed side member and crushed, the electrolyte leaks from the battery or the battery or electric circuit is short-circuited. There is a possibility that it may occur, and it is considered that there is room for improvement from the viewpoint of safety.

In view of the above circumstances, at least one embodiment of the present invention aims to provide a battery pack mounting structure capable of suppressing inward deformation of side members at the time of a side collision of a vehicle.

(1) The battery pack mounting structure according to at least one embodiment of the present invention is bridged over a pair of side members provided along the vehicle front-rear direction on both sides in the vehicle width direction and the pair of side members. A floor panel forming the bottom surface of the luggage compartment of the passenger compartment, a battery pack installed on the floor panel so that the longitudinal direction thereof follows the vehicle width direction, and a battery extending in the longitudinal direction of the battery pack. A bracket is provided which is joined to the lower surface of the pack and whose one end and the other end are fixed to the floor panel on the pair of side members, respectively. The bracket includes the one end and the other end. Each has a pair of legs that are bifurcated in the front-rear direction of the vehicle, and the pair of legs are fixed to the floor panel.

According to the configuration (1) above, since the collision load at the time of a side collision of the vehicle is distributed to the pair of legs, the amount of deformation of the vehicle can be reduced and the deformation of the side members inward can be suppressed.

(2) In some embodiments, in the configuration of (1) above, the bracket has an outer recess recessed inward in the width direction of the vehicle at the base of a pair of bifurcated legs.

According to the configuration (2) above, since the collision load at the time of a side collision of the vehicle is dispersed in the outer concave portion, it is possible to suppress the pair of legs from tearing and to suppress the deformation even when a large collision load is applied.

(3) In some embodiments, in the configuration of (2) above, the outer recesses are provided so as to face each other in the central region in the lateral direction of the battery pack.

According to the configuration of (3) above, even when a large collision load is received and the collision load at the time of a side collision of the vehicle is transmitted from one end to the other end, the collision load is efficiently applied to the pair of legs at the other end. Therefore, it is possible to suppress a large deformation of the vehicle.

(4) In some embodiments, in any one of the configurations (1) to (3) above, the bracket has flanges extending outward on both edges of the pair of legs.

According to the configuration of (4) above, the rigidity of the leg portion is increased by the flange, and deformation can be suppressed even when a large collision load is applied.

(5) In some embodiments, in any one of the above configurations (1) to (4), the bracket is placed inside the pair of legs in the width direction of the vehicle and outside the width direction of the vehicle. It has an inner recess that is recessed.

According to the configuration of (5) above, the collision load can be relaxed because the pair of legs bends and absorbs the collision load due to the recess as a trigger at the time of the side collision of the vehicle.

According to at least one embodiment of the present invention, since the collision load at the time of a side collision of the vehicle is distributed to the pair of legs, the amount of deformation of the vehicle can be reduced and the deformation of the side members inward can be suppressed.

It is a figure which shows typically the vehicle which adopts the mounting structure of the battery pack which concerns on one Embodiment of this invention. It is a top view which shows typically the mounting structure of the battery pack which concerns on one Embodiment of this invention. FIG. 3 is a sectional view taken along line III-III showing a mounting structure of the battery pack 2 shown in FIG. FIG. 5 is a sectional view taken along line IV-IV showing the mounting structure of the battery pack 2 shown in FIG. It is a top view which shows the relationship between the bracket shown in FIG. 2 and a floor panel. It is an enlarged perspective view which shows the relationship between the 1st bracket shown in FIG. 5 and a floor panel. It is a VII-VII line end view of the first bracket shown in FIG. FIG. 6 is a sectional view taken along line VIII-VIII of the first bracket shown in FIG. FIG. 6 is a sectional view taken along line IX-IX of the first bracket shown in FIG. It is a figure which shows the deformation of the vehicle when the vehicle which adopts the attachment structure of the battery pack which concerns on one Embodiment of this invention is a side collision.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, but are merely explanatory examples. Absent.

FIG. 1 is a diagram schematically showing a vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted.

As shown in FIG. 1, the vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted is a vehicle on which the battery pack 2 is mounted, and is, for example, an electric vehicle (EV) or a hybrid. It is an electric vehicle such as an automobile (HV) or a plug-in hybrid vehicle (PHV, PHEV).

FIG. 2 is a plan view schematically showing a mounting structure of the battery pack 2 according to the embodiment of the present invention. FIG. 3 is a sectional view taken along line III-III showing the mounting structure of the battery pack 2 shown in FIG. 2, and FIG. 4 is a sectional view taken along line IV-IV showing the mounting structure of the battery pack 2 shown in FIG. is there. FIG. 5 is a plan view showing the relationship between the first bracket 31 shown in FIG. 2 and the floor panel 12. FIG. 6 is an enlarged perspective view showing the relationship between the first bracket 31 shown in FIG. 5 and the floor panel 12. FIG. 7 is a VII-VII line end view of the first bracket 31 shown in FIG. 6, and FIG. 8 is a sectional view taken along line VIII-VIII of the first bracket 31 shown in FIG. FIG. 9 is a sectional view taken along line IX-IX of the first bracket 31 shown in FIG.

As shown in FIG. 2, the vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted is a vehicle in which the battery pack 2 is mounted on the rear side in the vehicle front-rear direction, and is in the vehicle front-rear direction. A rear bumper (not shown) is provided on the rearmost side, and tire wheel houses 14 are provided on both sides in the vehicle width direction in front of the rear bumper. In the vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted, for example, a luggage compartment is provided behind the passenger compartment in the vehicle front-rear direction, and tire wheel houses are provided on both sides of the luggage compartment in the vehicle width direction. 14 is arranged.

The vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted is a vehicle in which the battery pack 2 is installed on the floor panel 12, and the battery pack according to the embodiment of the present invention. The vehicle 1 adopting the mounting structure of 2 includes a pair of side members 11 (see FIG. 3) and a floor panel 12 in addition to the rear bumper and the tire wheel house 14 described above.

The pair of side members 11 are skeleton members constituting the vehicle 1, and are provided inside the tire wheel house 14 along the vehicle front-rear direction. Each of the pair of side members 11 is a groove-shaped skeleton member having an open upper surface, and is provided seamlessly by, for example, pressing a single steel plate. The pair of side members 11 have a flange extending inward in the vehicle width direction at the inner edge of the opening in the vehicle width direction, and the vehicle width of the opening gradually expands from the lower surface toward the opening. It has a flange extending upward at the outer edge of the direction.

The floor panel 12 is a floor member that constitutes the floor of the vehicle 1, is bridged over the pair of side members 11 described above, and divides the vehicle compartment and the luggage compartment in the upper region of the floor panel 12. The floor panel 12 is generally composed of a plurality of floor panels, and is classified into a front floor panel (not shown), a center floor panel (not shown), or a rear floor panel 123 according to a divided position in the vehicle front-rear direction. The center floor panel constitutes the floor surface of the passenger compartment, and the rear floor panel 123 constitutes the bottom surface of the luggage compartment. Each of these floor panels is seamlessly provided, for example, by pressing a single steel plate.

In the vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted, the battery pack 2 is placed on the rear floor panel 123 on the rear side in the front-rear direction of the vehicle so that its longitudinal direction is along the vehicle width direction. In the following description, the rear floor panel 123 is collectively referred to as the floor panel 123.

In the floor panel 123, a large area inside in the vehicle width direction is recessed downward (see FIG. 3), and the area on the front side in the vehicle front-rear direction of the large area recessed downward is the installation area of the battery pack 2. Further, a pair of reinforcements (not shown) are installed in the areas on both sides in the vehicle width direction corresponding to the installation area of the battery pack 2 on the floor panel 123. The pair of reinforcements are members that reinforce the floor panel 123 and are arranged along the vehicle front-rear direction. The pair of reinforcements are installed on the lower surface of the floor panel and are housed in a space closed by the pair of side members 11 and the floor panel 123 described above.

Further, as shown in FIG. 3, the floor panel 123 has flanges extending upward at each of the edges on both sides in the vehicle width direction. The upwardly extending flange of the floor panel 123 is joined to the upwardly extending flange of the side member 11 by spot welding. Further, the flange of the side member 11 extending inward in the vehicle width direction is joined to the floor panel 123 by spot welding.

As shown in FIG. 2, in the vehicle 1 in which the mounting structure of the battery pack 2 according to the embodiment of the present invention is adopted, the cross member 16 is provided on the upper surface of the boundary portion between the center floor panel and the rear floor panel 123. The cross member 16 is a skeleton member constituting the vehicle 1 and is provided along the vehicle width direction, similarly to the pair of side members 11 described above. The cross member 16 is a groove-shaped skeleton member having an open lower surface, and is provided seamlessly by, for example, pressing a single steel plate. The cross member 16 has a flange extending toward the front side in the vehicle front-rear direction at the front edge of the opening in the vehicle front-rear direction, and a flange extending toward the rear side in the vehicle front-rear direction at the edge of the opening on the rear side in the vehicle front-rear direction. Have. One end of the cross member 16 is fixed to the floor panel 123 on one of the pair of side members 11, and the other end of the cross member 16 is fixed to the floor panel 123 on the other of the pair of side members 11. The flange of the cross member 16 extending toward the front side in the vehicle front-rear direction is joined to the center floor panel by spot welding, and the flange extending toward the rear side of the cross member 16 in the vehicle front-rear direction is joined to the rear floor panel 123 by spot welding. Weld.

The battery pack 2 contains high-voltage components such as a battery module 23 in which a plurality of battery cells are bundled and a DC-DC converter 24 in a container composed of a tray 21 and a cover 22.

As shown in FIG. 3, the tray 21 is a shallow box-shaped container having an open upper surface and a substantially rectangular shape in a plan view. The tray 21 has a uniform thickness, for example, by pressing a single steel plate. The bottom surface of the tray 21 has a substantially rectangular shape in a plan view, and its central region in the width direction slightly rises upward along the longitudinal direction (see FIG. 4). The side surface of the tray 21 is gradually (gradually) expanded from the lower surface of the tray 21 toward the opening (upper surface), and the outer side surfaces on both sides in the longitudinal direction and the outer side surfaces on both sides in the width direction are inclined. Further, a flange 21C is provided around the opening of the tray 21. The flange 21C is a portion to which the cover 22 is joined, and is provided over the entire circumference of the opening (upper surface). The flange 21C projects horizontally from the opening to the outside, and a horizontal joint surface is provided on the upper surface thereof.

As shown in FIG. 4, the tray 21 has a pair of inner frames 211 inside. The pair of inner frames 211 form a pair in the width direction of the tray 21 and are installed along the longitudinal direction of the tray 21. The inner frame 211 has a uniform thickness, for example, by bending a steel plate. The inner frame 211 has a bottom plate portion provided along the bottom surface of the tray 21 and a side plate portion extending obliquely from the bottom plate portion and extending along the inner side surface of the tray 21. The bottom plate portion of the inner frame 211 has a joint portion in which concave and convex are alternately continuous at a position facing the central region in the width direction of the tray 21 that is raised on the bottom surface of the tray 21. The bottom plate portion of the inner frame 211 is joined by spot welding to the central region in the width direction of the tray 21 which is raised at the bottom surface of the tray 21 due to the concave portion of the joint portion, and the side plate portion of the inner frame 211 is inclined provided on the inner side surface of the tray 21. It is joined to the surface by spot welding.

The cover 22 is a container having substantially the same size as the tray 21, and is a shallow box-shaped container having an open lower surface and a substantially rectangular shape in a plan view. The cover 22 has a uniform thickness, for example, by pressing a single steel plate. The upper surface of the cover 22 is substantially rectangular in plan view and has a plurality of beads (see FIG. 2) along the width direction thereof. The side surface of the cover 22 is gradually (gradually) expanded from the upper surface toward the opening (lower surface), and the outer side surfaces on both sides in the longitudinal direction and the outer side surfaces on both sides in the width direction are inclined. Further, a flange 22C is provided around the opening of the cover 22. The flange 22C is a portion joined to the tray 21 and is provided over the entire circumference of the opening (lower surface). The flange 22C projects horizontally from the opening to the outside, and a horizontal joint surface is provided on the lower surface thereof.

For example, the cover 22 has a tray 21 by fastening bolts penetrating a plurality of holes provided in the flange 22C of the cover 22 to a plurality of nuts (weld nuts) provided on the lower surface of the flange 21C of the tray 21. Can be attached to.

As shown in FIG. 2, a plurality of brackets 31, 32, 33, 34 are joined to the battery pack 2 described above.

The first bracket 31 of the plurality of brackets extends in the longitudinal direction of the tray 21 and is joined to the lower surface of the tray 21 and the outer side surfaces on both sides. The first bracket 31 has a uniform thickness, for example, by pressing a single steel plate.

As shown in FIG. 5, the first bracket 31 is a long bracket extending in the longitudinal direction of the tray 21, and a pair of legs that are bifurcated in the front-rear direction of the vehicle at one end 31A and the other end 31B, respectively. It has parts 31AF, 31AR, 31BF and 31BR. The first bracket 31 is curved along the lower surface of the central region in the width direction of the tray 21 and the outer side surfaces on both sides, in which the bottom surface of the tray 21 is raised between one end 31A and the other end 31B (main body portion). See FIGS. 3 and 4). As shown in FIG. 4, the cross section of the main body portion (the portion between the one end portion 31A and the other end portion 31B) of the first bracket 31 is a waveform having a small protrusion in the center of a large recess and is large. It has flanges extending outward on both sides of the recess.

As shown in FIG. 6, the pair of legs 31AF, 31AR (31BF, 31BR) has a groove shape (hat shape) with an upper opening, and has beads that rise upward on the bottom surface thereof, and has beads on both sides of the opening. It has a flange 31A1 extending outward. Therefore, as shown in FIG. 7, the cross section of the pair of legs 31AF, 31AR (31BF, 31BR) has a small chevron-shaped protrusion in the center of the groove, and flanges 31A1 extending outward on both sides of the groove. It has 31A2.

In addition, the bases of the pair of bifurcated legs 31AF, 31AR (31BF, 31BR) are recessed inward in the width direction of the vehicle, facing each other in the vehicle width direction along the central region in the lateral direction of the battery pack 2. It has a (outer) recess 31AM (31BM). The (outer) recess 31AM (31BM) is provided over the outer wall forming the groove of the legs 31AF, 31AR (31BF, 31BR) and the flange 31A1 extending from the wall to the outside of the tray 21, and is shown in FIG. As described above, the wall 31A3 is provided so as to surround the recess 31AM.

Further, the recesses 31AF1, 31AR1 (31BF1, 31BR1) that are recessed (inside) toward the outside in the vehicle width direction of the tray 21 inside the tray 21 of each of the pair of legs 31AF, 31AR (31BF, 31BR) that are bifurcated. It has 31BR1). The (inner) recesses 31AF1, 31AR1 (31BF1, 31BR1) are provided over the inner wall forming the groove of the legs 31AF, 31AR (31BF, 31BR) and the flange 31A2 extending outward from the wall, and is shown in FIG. As shown, the walls 31A4 are provided so as to surround the recesses 31AF1 and 31AR1.

As shown in FIG. 2, the main body portion (the portion between one end 31A and the other end 31B) of the first bracket 31 is the lower surface and both sides of the central region in the width direction of the tray 21 in which the bottom surface of the tray 21 is raised. The flange of the first bracket 31 is joined to the tray 21 together with the bottom plate portion of the inner frame 211 by spot welding. Further, the flange of the first bracket 31 is joined to the flange 21C provided around the opening of the tray 21 by spot welding.

Of the plurality of brackets, the second bracket 32 and the third bracket 33 are spaced apart from each other in the width direction of the tray 21, which is the front side in the vehicle front-rear direction when the battery pack 2 is installed on the floor panel 123. Will be installed. The second bracket 32 and the third bracket 33 extend in the width direction of the tray 21 and are joined to the outer side surface of the tray 21 on one side in the width direction. The second bracket 32 and the third bracket 33 have a uniform thickness, for example, by pressing a single steel plate. The second bracket 32 and the third bracket 33 are curved along the outer side surface of the tray 21. The cross section of the second bracket 32 and the third bracket 33 is corrugated with a small protrusion in the center of the large recess and has flanges extending outward on both sides of the large recess. One ends of the second bracket 32 and the third bracket 33 are installed at intervals on one side in the width direction of the tray 21 and are joined to the tray 21 by spot welding.

Of the plurality of brackets, the fourth bracket 34 is installed at the center of the tray 21 on the other side in the width direction, which is the rear side in the front-rear direction of the vehicle when the battery pack 2 is installed on the floor panel 123. The fourth bracket 34 extends in the width direction of the tray 21 and is joined to the outer side surface of the tray 21 on the other side in the width direction. The fourth bracket 34 has a uniform thickness, for example, by being pressed. The fourth bracket 34 is curved so that the upper surface is concave along the outer side surface of the tray 21. The cross section of the fourth bracket 34 is corrugated with a small protrusion in the center of the large recess and has flanges extending outward on both sides of the large recess. One end of the fourth bracket 34 is installed substantially in the center of the tray 21 on the other side in the width direction, and is joined to the tray 21 by spot welding.

The battery pack 2 (tray 219) to which the plurality of brackets 31, 32, 33, and 34 are joined is installed on the floor panel 123 in the longitudinal direction along the vehicle width direction. As described above, the floor panel 123 has a large area inside in the vehicle width direction recessed downward, and the lower half portion (tray 21 portion) of the battery pack 2 is recessed below the floor panel 123 in the front and rear of the vehicle. It is housed in the area on the front side in the direction (the installation area of the battery pack 2) (see FIG. 4).

The first bracket 31 joined to the battery pack 2 (tray 21) is provided at one end 31A on the pair of side members 11 inside the tire wheel house 14 arranged on both sides in the vehicle width direction. 31AF, 31AR and 31BF, 31BR provided on the other end 31B are fixed to the floor panel 123, respectively. For example, the first bracket 31 has bolts that penetrate holes provided in the legs 31AF and 31AR of one end 31A of the first bracket 31 and the legs 31BF and 31BR of the other end 31B, respectively, on the floor panel 123. It is fixed to the floor panel 123 by fastening it to a nut (weld nut) provided on the lower surface of the floor panel 123.

The other ends of the second bracket 32 and the third bracket 33 joined to the battery pack 2 (tray 21) are fixed to the cross member 16. For example, the other ends of the second bracket 32 and the third bracket 33 are provided with bolts on the cross member 16 that penetrate holes provided in the other ends of the second bracket 32 and the third bracket 33, respectively. It is fixed to the cross member 16 by fastening to the screw holes provided.

The other end of the fourth bracket 34 joined to the battery pack 2 (tray 21) is fixed to the floor panel 123. For example, at the other end of the fourth bracket 34, a bolt 341 penetrating a hole provided in the other end of the fourth bracket 34 is fastened to a nut (weld nut) 342 provided on the lower surface of the floor. Is fixed by.

FIG. 10 is a diagram showing deformation of a vehicle when a vehicle adopting the battery pack mounting structure according to the embodiment of the present invention is laterally collided.

As described above, in the mounting structure of the battery pack 2 according to the embodiment of the present invention, the first bracket 31 has a pair of legs that are bifurcated in the front-rear direction of the vehicle, respectively, at one end 31A and the other end 31B. It has 31AF, 31AR, 31BF, 31BR, and a pair of legs 31AF, 31AR, 31BF, 31BR are fixed to the floor panel 123. As a result, the collision load at the time of a side collision of the vehicle is dispersed by spreading the pair of legs that are branched in the front-rear direction of the vehicle, so that the amount of deformation of the vehicle is reduced, and as shown in FIG. The inward deformation of the 11 can be suppressed, and the amount of deformation of the battery pack 2 can be reduced.

In the mounting structure of the battery pack 2 according to the embodiment of the present invention, as described above, the first bracket 31 is located at the base of the pair of bifurcated legs 31AF, 31AR, 31BF, 31BR in the width direction of the vehicle. It has indented (outer) recesses 31AM and 31BM. As a result, as shown in FIG. 10, the collision load at the time of the side collision of the vehicle is efficiently dispersed in the (outer) recesses 31AM and 31BM, so that the pair of legs are suppressed from tearing and a large collision load is applied. Deformation can be suppressed even if it is received.

In the mounting structure of the battery pack 2 according to the embodiment of the present invention, the recessed (outer) recesses 31AM and 31BM in the width direction of the vehicle are provided so as to face each other in the central region in the lateral direction of the battery pack 2. ing. As a result, even when a large collision load is received and the collision load at the time of a side collision of the vehicle is transmitted from one end to the other end, the collision load is efficiently distributed to the pair of legs even at the other end. It is possible to suppress large deformation of the vehicle.

In the mounting structure of the battery pack 2 according to the embodiment of the present invention, as described above, the first bracket 31 has flanges 31A1 extending outward on both edges of the pair of legs 31AF, 31AR (31BF, 31BR). , 31A2. As a result, the rigidity of the leg portion is increased by the flange, and as shown in FIG. 10, deformation can be suppressed even when a large collision load is applied.

In the mounting structure of the battery pack 2 according to the embodiment of the present invention, as described above, the first bracket 31 is located inside the pair of legs 31AF, 31AR, 31BF, and 31BR in the vehicle width direction. It has recesses 31AF1, 31AR1, 31BF1, 31BR1 that are recessed (inside) outward in the width direction. As a result, the (inner) recesses 31AF1, 31AR1, 31BF1, 31BR1 are triggered at the time of a side collision of the vehicle, and as shown in FIG. 10, the pair of legs 31AF, 31AR, 31BF, 31BR absorb the bending load and thus collide. The load can be relaxed.

The present invention is not limited to the above-described embodiment, and includes a modification of the above-described embodiment and a combination of these embodiments as appropriate.

1 Vehicle 11 Side member 12 Floor panel 123 Rear floor panel (floor panel)
14 Tire Wheelhouse 16 Cross Member 2 Battery Pack 21 Tray 21C Flange 211 Inner Frame 22 Cover 22C Flange 23 Battery Module 24 DC-DC Converter 31 First Bracket (Bracket)
31A One end 31AF, 31AR Leg 31AM (outside) recess 31AF1, 31AR1 (inside) recess 31A1, 31A2 Flange 31A3, 31A4 Wall 31B Other end 31BF, 31BR Leg 31BM (outside) recess 31BF1, 31BR1 (inside) recess

Claims (5)

A pair of side members provided along the vehicle front-rear direction on both sides in the vehicle width direction,
A floor panel that is bridged over the pair of side members and constitutes the bottom surface of the luggage compartment of the vehicle.
A battery pack installed on the floor panel so that its longitudinal direction is along the vehicle width direction.
A bracket that extends in the longitudinal direction of the battery pack, is joined to the lower surface of the battery pack, and one end and the other end are fixed to the floor panel on the pair of side members.
With
The bracket has a pair of legs that are bifurcated in the front-rear direction of the vehicle, respectively, at one end and the other end.
A battery pack mounting structure, characterized in that the pair of legs are fixed to the floor panel. The bracket
The battery pack mounting structure according to claim 1, wherein the base of the pair of bifurcated legs has an outer recess that is recessed inward in the width direction of the vehicle. The battery pack mounting structure according to claim 2, wherein the outer recesses are provided so as to face each other in the central region in the lateral direction of the battery pack. The bracket
The battery pack mounting structure according to any one of claims 1 to 3, wherein flanges extending outward are provided on both edges of the pair of legs. The bracket
The battery pack mounting structure according to any one of claims 1 to 4, wherein each of the pair of legs has an inner recess that is recessed outward in the width direction of the vehicle. ..

Images