Vehicle drive battery mounting structure

Abstract

To provide a mounting structure which is suitable for a vehicle driving battery of which rear half is heavier than its front half.SOLUTION: A mounting structure comprises: a vehicle driving battery which is arranged under a floor panel; a pair of floor skeleton members respectively extended along the left and right edges of the battery; and a plurality of brackets for fixing the battery to the pair of floor skeleton members. The plurality of brackets includes at least a first bracket for fixing a part of the battery which is located frontward from its center in the vehicle longitudinal direction to the floor skeleton member and a second bracket for fixing a part of the battery which is located rearward from its center in the vehicle longitudinal direction to the floor skeleton member. The first bracket is extended outward in the vehicle width direction from a side edge part of the battery and is connected to a bottom surface of the floor skeleton member, and the second bracket is extended upward from the side edge part of the battery and is connected to a vertical side surface of the floor skeleton member.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a mounting structure for a vehicle drive battery. [Background technology]

[0002] In electrically powered vehicles such as electric vehicles (EVs), hybrid vehicles (HVs), and plug-in hybrid vehicles (PHVs), a vehicle drive battery may be located under the floor panel. The battery is typically fixed to a floor frame member via multiple brackets. In the vehicle disclosed in Patent Document 1, the battery unit is attached so as to be suspended below the floor panel by fastening multiple brackets to the floor frame. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6442609 Summary of the Invention [Problem to be solved by the invention]

[0004] The battery for driving the vehicle, located under the floor panel, tends to be heavier in the rear half than in the front half. This is because, for example, in the area forward of the front end of the rear seats, the floor surface of the vehicle compartment is lowered to ensure legroom, and the battery is made thin, while in the rear area, the floor surface is made higher, and the battery is made thicker accordingly, thereby increasing battery capacity.

[0005] An object of the present invention is to provide a mounting structure suitable for a vehicle drive battery whose rear half is heavier than its front half. [Means for solving the problem]

[0006] A mounting structure according to one aspect of the present invention includes a vehicle drive battery disposed under a floor panel, a pair of floor frame members extending along left and right side edges of the battery, and a plurality of brackets for securing the battery to the pair of floor frame members. The plurality of brackets include at least a first bracket for securing a portion of the battery located forward of the center of the vehicle in the longitudinal direction to the floor frame member, and a second bracket for securing a portion of the battery located rearward of the center of the vehicle in the longitudinal direction to the floor frame member. The first bracket extends outward in the vehicle width direction from the side edge of the battery and is coupled to the underside of the floor frame member, and the second bracket extends upward from the side edge of the battery and is coupled to a vertical side surface of the floor frame member. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a mounting structure suitable for a vehicle drive battery whose rear half is heavier than its front half. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a mounting structure for a vehicle drive battery according to an embodiment; [Figure 2] FIG. 1 is a perspective view showing a battery according to an embodiment. [Figure 3] 1 is a side view showing a mounting structure for a vehicle drive battery according to an embodiment; [Figure 4] 1 is a bottom view showing a mounting structure for a vehicle drive battery according to an embodiment of the present invention; [Figure 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] A vehicle drive battery mounting structure S according to an embodiment will be described below with reference to the drawings. In each drawing, FR and RR indicate the front and rear in the vehicle longitudinal direction, respectively, LH and RH indicate the left and right in the vehicle width direction, and UP and DN indicate the top and bottom, respectively. In the following description, the left and right in the vehicle width direction, and the front, front side, rear, and rear sides in the vehicle longitudinal direction will be simply referred to as the "left side," "right side," "front," "front side," "rear," and "rear side," respectively. Elements having the same function will be assigned the same reference numerals, and duplicate descriptions will be omitted.

[0010] The electric vehicle V according to the embodiment is, for example, an electric vehicle (EV) that runs using only an electric motor as a driving force source. As shown in Figs. 1 to 4, a battery 1 that supplies driving power to an electric motor (not shown) is disposed under a floor panel FP of the electric vehicle V. As shown in Fig. 3, the battery 1 is disposed between the rear seat S and the dash panel DP in the vehicle longitudinal direction. R Hereinafter, the part located forward of the center C of the battery 1 in the vehicle front-rear direction (hereinafter simply referred to as the center C) is referred to as the battery front half 1. F The part located behind the center C is called the rear part of the battery 1 R It is called.

[0011] 2 and 3, the battery 1 is composed of at least a battery case 2 and a plurality of battery modules 3 housed in the housing space inside the battery case 2. The battery case 2 may house auxiliary devices (not shown), such as a controller, switches, and relays, that manage the capacity, voltage, temperature, etc. of the battery modules 3.

[0012] The battery case 2 is made of, for example, a press-molded product such as a steel plate, and has a substantially rectangular shape in a plan view. The battery case 2 is a box-shaped upper case 2 with a bottom that opens downward. U and a bottomed box-shaped lower case 2 that opens upward. L Upper case 2 U and Lower Case 2 L The opening of the upper case 2 isU and Lower Case 2 L A sealing section 2 is provided with a sealing material that seals between the S Lower case 2 L Left and right side edges 2 E As shown in FIGS. 5 and 6, the battery 1 is made of a C-shaped member. E Each of them consists of:

[0013] Upper Case 2 U At the rear of the B The raised portion 2 is formed. B The raised portion 2 of the battery 1 is raised one step higher than the portion located in front of it, and forms a larger storage space inside the battery case 2 than the storage space located in front of it. B The part corresponding to the large volume part 1 V The large volume section 1 V The part located further forward is General Section 1 G It is called.

[0014] Large volume section 1 V Battery rear part 1 R It forms the rear part of the general section 1 G is the first half of the battery F The entire battery and the rear half of the battery 1 R It forms the front part of the large volume section 1 V As shown in Figure 3, R In the vehicle longitudinal direction, the general section 1 G and large volume section 1 V The boundary between the rear seats is S R It is located near the front end.

[0015] The dimensions of the battery 1 in the vehicle width direction are G The large volume part 1 V In this example, the width of the battery 1 increases in the range of about one-third of the front side, and the width of the battery 1 is constant and at its maximum in the range of about two-thirds of the rear side. A From rear end 1B It may be constant over a

[0016] The battery module 3 is configured by connecting a plurality of unit cells, such as lithium ion batteries. B As shown in FIG. 3, a large battery module 3 is installed in the large storage space formed in the L In addition, there are 1 general section. G In the storage space formed in the S Large battery module 3 L The cells that make up the battery are placed in a small battery module3 S The height and width in the vehicle longitudinal direction are greater than those of the unit cells constituting the battery pack, and therefore the area as viewed in the vehicle width direction is larger.

[0017] Each battery module 3 is housed in a lower case 2 L The load per unit area on the mounting surface is 3 times that of a large battery module. L The battery module 3 is smaller S Therefore, the weight per unit length of the battery 1 in the vehicle longitudinal direction is larger than that of the small battery module 3. S Battery module 3 is larger than the area where L Therefore, the center of gravity G of the entire battery 1 is located behind the center C, that is, the rear half 1 of the battery, as shown in FIGS. R It is located in.

[0018] Left and right side edges 1 of the battery 1 E (In this embodiment, the lower case 2 L Left and right side edges 2 E ) extends along the front-rear direction of the vehicle. As shown in FIG. 4, the right side edge 1 E is the front end 1 of the battery 1. A From rear end 1 B The battery 1 extends linearly along the front-rear direction of the vehicle. E is the large volume part 1V The left side edge 1 of the battery 1 is bent. E is the large volume part 1 V The large volume section 1 extends diagonally in the front third of the vehicle, and is positioned outward in the vehicle width direction as it moves rearward. V The battery 1 has a left side edge 1 extending linearly in the front-rear direction of the vehicle, approximately two-thirds of the way to the rear. E The right side edge 1 E Similarly, the front end 1 of the battery 1 A From rear end 1 B The longitudinal direction of the vehicle may be extended linearly over the entire length of the longitudinal direction of the vehicle.

[0019] As shown in Figures 1 and 4, a pair of left and right battery protection members 4, which are floor framework members, are provided on the underside of the floor panel FP. The left battery protection member 4 is attached to the left side edge 1 of the battery 1. E The right battery protection member 4 extends along the right side edge 1 of the battery 1. E A left side sill 5 is provided on the outer side of the left battery protection member 4 in the vehicle width direction, and a right side sill 5 is provided on the outer side of the right battery protection member 4 in the vehicle width direction.

[0020] Each battery protection member 4 is a member formed by pressing a steel plate or the like, and has a hat-shaped cross section that opens upward. As shown in FIGS. 5 and 6, each battery protection member 4 has a lower wall portion 4 A and the outer vertical wall portion 4 B and the inner vertical wall portion 4 C and outer flange part 4 D and inner flange part 4 E The outer vertical wall portion 4 B The lower wall 4 A The inner vertical wall portion 4 extends upward from the outer edge in the vehicle width direction. C The lower wall 4 A The outer flange portion 4 extends upward from the inner edge in the vehicle width direction. D The outer vertical wall 4 B The inner flange portion 4 extends outward in the vehicle width direction from the upper end edge of the inner flange portion 4.E The inner vertical wall 4 C and extends inward in the vehicle width direction from the upper end edge of the

[0021] Outer flange part 4 D and inner flange part 4 E The upper surface of the battery protection member 4 is joined to the lower surface of the floor panel FP, forming a closed cross section. D and inner flange part 4 E A plate material (not shown) is joined to the top surface of the structure to form a closed cross section.

[0022] As shown in FIGS. 3 and 4, the front portions 4 of the left and right battery protection members 4 are F (The following is the front part of the member 4 F The left and right side edges 1 of the battery 1 are E The side edge 1 is located on the outer side in the vehicle width direction. E The left and right front members are arranged side by side in the vehicle width direction. F are the front end 1 of the battery 1, A In a region further forward, it extends substantially horizontally along the vehicle longitudinal direction, and its front end is connected to the lower rear end of the front side member 6 (see FIG. 1).

[0023] As shown in FIG. 3, the front part 4 of each member F The height of the SH However, when viewed in the width direction of the vehicle, lower case 2 L Side edge 2 E Specifically, the front four of each member are set to overlap. F Underside 4 SH But, Lower Case 2 L Higher than the bottom of the seal part 2 S Also, the front four of each member F The upper surface of the outer flange portion 4 D and inner flange part 4 E Upper Case 2 U Lower than the height of the upper surface of the center of the vehicle width direction, and seal part 2 SIt is located at a higher height.

[0024] As shown in FIGS. 3 and 4, the front portions 4 of the left and right members F Rear end of 4 FE In the vehicle longitudinal direction, the general part 1 of the battery 1 G and large volume section 1 V The rear 4 of the left and right battery protection members 4 is located near the boundary between the left and right battery protection members 4 and the rear 4 of the left and right battery protection members 4. R (The following is the rear part of the member 4 R (also referred to as "front part"), respectively, F Rear end of 4 FE The rear portion 4 of each member extends inward and upward in the vehicle width direction. R When viewed from the front and rear of the vehicle, the side edge 1 of the battery 1 E from the outer side in the vehicle width direction to the side edge 1 E The side edge 1 E It curves smoothly around the top.

[0025] Also, the rear four left and right members R is the rear end 1 of the battery 1. B In the rearward region, the rear end 1 of the battery 1 extends inward in the vehicle width direction and approximately horizontally. B The left rear side member 7 is connected to the rear portion 4 of the left side member 7 by a rear cross member 8 provided at a position spaced apart from the left side member 7. R The right rear side member 7 is located on the outside in the vehicle width direction. R The left and right rear side members 7 are attached with rear suspensions (not shown). At a position behind the rear cross member 8, the rear portions 4 of the left and right members are R Each of the battery protection members 4 extends substantially horizontally along the vehicle longitudinal direction, and its rear end reaches the rear panel 9. Therefore, the battery 1 can be protected by the battery protection member 4 in the event of a rear-end collision.

[0026] Rear member 4 RAs shown in FIGS. 1, 3 and 4, a part of the battery side edge 1 E rear end 1 E1 On the upper side of the rear end 1 E1 are arranged in a vertical line. R A part of the battery side edge 1 E rear end 1 E1 The following is the rear part of the member 4 R The side edge portion 1 of the battery 1 E rear end 1 E1 The vertically arranged portions 4 VA It is called.

[0027] 1 to 4, the battery 1 is provided with a plurality of brackets 10 made of metal such as steel for fixing the battery 1 to the left and right battery protection members 4. In this embodiment, the brackets 10 are made up of six first brackets 11 and two second brackets 12.

[0028] As shown in FIGS. 2 to 4, the four front first brackets 11 are located forward of the center C of the battery 1 and are in contact with the front half 1 of the battery. F , i.e., general part 1 G The front part of the member 4 F The remaining two first brackets 11 are located behind the center C of the battery 1 and are fixed to the rear half 1 of the battery. R General Section 1 G Member front 4 F It is fixed at.

[0029] As shown in FIG. 5, each of the first brackets 11 is attached to a side edge 1 of the battery 1. E and extends outward in the vehicle width direction from the front part of the member 4 F Underside 4 SH The front part of the member 4 is connected to the F Underside 4 SH , that is, the lower wall portion 4 A The lower surface of the front member 4 extends parallel to the vehicle width direction in a cross section perpendicular to the vehicle front-rear direction. F Underside 4 SHAs shown in Figure 3, F The bottom surface 4 is a flat surface that extends almost horizontally over the entire length of the SH It is sufficient that the portion to which the first bracket 11 is joined extends parallel to the vehicle width direction, and the portion other than the portion to which the first bracket 11 is joined does not have to be flat or horizontal.

[0030] As shown in FIG. 5, each of the first brackets 11 is attached to the upper panel member 11 A and bottom panel material 11 B The upper panel material 11 A has a substantially L-shaped configuration when viewed from the front-rear direction of the vehicle, and the lower case 2 L Side edge 2 E a flange portion 11 joined to the outer side surface in the vehicle width direction of the Aa and flange portion 11 Aa The arm portion 11 extends substantially horizontally from the lower end of the arm portion 11 toward the outside in the vehicle width direction. Ab As shown in FIG. 2, the upper panel material 11 A At the center of the vehicle in the longitudinal direction, there is a protruding portion 11 extending in the vehicle width direction and protruding upward. Ac That is, the upper panel material 11 A A plurality of ridge lines extending in the vehicle width direction are formed on the rear panel.

[0031] Lower panel material 11 B As shown in FIG. 5, the lower case 2 has a substantially S-shaped configuration when viewed from the front-rear direction of the vehicle. L The inner end 11 in the vehicle width direction is joined to the underside of the Ba and the inner end 11 in the vehicle width direction. Ba The arm portion 11 extends in a smoothly curved manner outward and upward in the vehicle width direction from the Bb As shown in FIGS. 3 and 4, the lower panel material 11 B At the center of the vehicle in the longitudinal direction, there is a protruding portion 11 extending in the vehicle width direction and protruding upward. Bc In addition, the lower panel material 11 B The protruding portion has downwardly protruding ribs 11 extending in the vehicle width direction along both sides of the protruding portion. Bd That is, the lower panel material 11 BA plurality of ridge lines extending in the vehicle width direction are formed on the rear panel.

[0032] As shown in FIG. 5, the upper panel material 11 A Arm part 11 Ab the outer end of the lower panel material 11 B Arm part 11 Bb and the outer end portion of the first bracket 11 in the vehicle width direction are joined in a state where they are overlapped vertically, and the fastened portion 11 of the first bracket 11 is F The fastened portion 11 F The upper panel material 11 A Arm part 11 Ab and has a flat plate shape extending approximately horizontally at the same height as the front part 4 of the member. F Underside 4 SH It has been concluded.

[0033] In addition, the lower panel material 11 of the first bracket 11 on the left side B and the lower panel material 11 of the first bracket 11 on the right side. B As shown in Figs. 1 and 4, L Alternatively, the left and right first brackets 11 may be formed from both ends of a stiffening cross member 13 joined to the underside of the bracket 11. In this way, the left and right first brackets 11 are connected to each other via the main body of the cross member 13, i.e., the portion between the both ends.

[0034] As shown in FIGS. 1 to 4, the two second brackets 12 are located rearward of the center C of the battery 1 and are in contact with the rear half 1 of the battery. R Large volume section 1 V Member rear 4 R As shown in FIG. 6, each second bracket 12 is fixed to a side edge 1 of the battery 1. E Extending upward from the vertical side surface 4 of the battery protection member 4 SV Specifically, each second bracket 12 is connected to the upper and lower parallel portions 4 of the battery protection member 4. VA The outer longitudinal side of the vehicle in the width direction SV The rear part of the member is connected to R 4 on the outer longitudinal side of the vehicle SV , that is, the outer vertical wall portion 4B The outer surface of the vehicle extends substantially along the vertical direction in a cross section perpendicular to the vehicle front-rear direction.

[0035] As shown in FIGS. 2, 3, and 6, each second bracket 12 is a substantially flat plate-shaped member made of a single panel material, and has an upper mounting surface 12 A and the lower mounting surface portion 12 B and a connecting portion 12 that connects them. C The lower mounting surface portion 12 B has a flat plate shape that is approximately perpendicular to the vehicle width direction, and is fastened to the lower case 2 by fastening members F such as bolts. L Side edge 2 E rear end 2 E1 The upper mounting surface portion 12 is fastened to the outer side surface in the vehicle width direction. A The rear part 4 of the member is fixed to the rear part 4 of the vehicle by fastening members F such as bolts. R Upper and lower parallel sections 4 VA 4 on the outer longitudinal side of the vehicle SV It has been concluded.

[0036] Lower case 2 L Side edge 2 E The lower mounting surface portion 12 of the side surface B and the rear part of the member 4 R Vertical side 4 SV The upper mounting surface portion 12 A The lower mounting surface portion 12 is in a positional relationship where the lower mounting surface portion 12 and the lower mounting surface portion 12 can be connected by a substantially vertical straight line. B and the upper mounting surface portion 12 A The second bracket 12 has ribs 12 extending outward in the vehicle width direction and continuously extending in the up-down direction at both end edges of the second bracket 12 in the vehicle front-rear direction. D That is, the second bracket 12 has a plurality of ridges extending in the vertical direction.

[0037] The effects of this embodiment will be described below.

[0038] (1) In the mounting structure S, the first bracket 11 is attached to the side edge 1 of the battery 1. E The battery protection member 4 extends outward in the vehicle width direction from the lower surface 4 SH That is, the first bracket 11 extends in the input direction of the side impact load and is connected to a surface aligned with the input direction. Therefore, the first bracket 11 can increase the reaction force when the side impact load is transmitted to the first bracket 11 directly or via the battery protection member 4, thereby improving the absorption of energy. Furthermore, deformation of the floor panel FP during a side impact can be suppressed, thereby protecting the battery 1.

[0039] Furthermore, in the mounting structure S, the second bracket 12 is attached to the side edge portion 1 of the battery 1. E Extending upward from the vertical side surface 4 of the battery protection member 4 SV That is, the second bracket 12 extends in the vertical direction and is joined to a surface that is aligned with the vertical direction. Therefore, the second bracket 12 can transmit the weight of the battery 1, i.e., the load in the vertical direction, to the battery protection member 4 more efficiently than the first bracket 11. In other words, the second bracket 12 is lighter and has a simpler structure than the first bracket 11, and can support a greater weight.

[0040] In the mounting structure S, a plurality of brackets 10 for fixing the battery 1 to the battery protection member 4 are attached to the front half 1 of the battery. F a first bracket 11 for fixing the battery rear part 1 R As a result, the battery 1, which is heavier in the rear half than in the front half, can be supported efficiently while improving energy absorption in the event of a side collision.

[0041] (2) In addition, in the mounting structure S, the front part 4 of the battery protection member 4 F However, the side edge 1 of the battery 1 E the side edge 1 on the outer side in the vehicle width direction E In the event of a side collision, the battery protection member 4 is FThis allows the battery 1 to be protected.

[0042] Furthermore, in the mounting structure S, the rear part 4 of the battery protection member 4 R The battery 1 is connected to the side edge 1 of the battery 1 via the second bracket 12. E rear end 1 E1 Therefore, the rear 4 of the battery protection member 4 is connected to R A downward load (the weight of the battery 1) can be applied to the rear portion of the battery protection member 4, and the rear end portion of the battery protection member 4 can be prevented from being deformed so as to jump up during a rear-end collision.

[0043] (3) In addition, in the mounting structure S, the second bracket 12 is attached to the outer vertical side surface 4 of the battery protection member 4 in the vehicle width direction. SV Therefore, compared to when the second bracket 12 is connected to the inner vertical side surface in the vehicle width direction, the dimension of the battery 1 in the vehicle width direction can be increased, and the capacity of the battery 1 can be increased.

[0044] (4) Furthermore, in the mounting structure S, the left and right first brackets 11 are configured as part of the cross member 13, which is a member that stiffens the battery case 2, and are connected to each other. Therefore, a side collision load input from either the left or right side is transmitted to the battery protection member 4 on the other side via the cross member 13 and the first bracket 11 on the other side. Therefore, with the mounting structure S, the reaction force when the side collision load is transmitted to the first bracket 11 can be further increased.

[0045] The above-described embodiments are merely examples described to facilitate understanding of the invention. The technical scope of the invention is not limited to the specific technical matters disclosed in the above-described embodiments, but also includes various modifications, changes, alternative technologies, etc. that can be easily derived therefrom.

[0046] In the above embodiment, six first brackets 11 and two second brackets 12 are provided, but the numbers of first brackets 11 and second brackets 12 are not limited to this. Also, in the above embodiment, only the second brackets 12 are configured to be located rearward of the center C of the battery 1, but the second brackets 12 may include one located forward of the center C. Furthermore, in the above embodiment, only the first brackets 11 are configured to be located rearward of the center C of the battery 1, but the second brackets 12 may include one located forward of the center C of the battery 1. Also, in the above embodiment, only the second brackets 12 are configured to be located rearward of the first bracket 11, but the second brackets 12 may include one located forward of the first bracket 11.

[0047] In the above embodiment, an electric vehicle (EV) has been described as an example, but it goes without saying that the present invention can also be applied to hybrid vehicles (HV), plug-in hybrid vehicles (PHV), and the like. [Explanation of symbols]

[0048] S Mounting structure FP Floor Panel 1 battery 1 F Front half of the battery (the part located forward of the center of the battery in the vehicle's longitudinal direction) 1 R Rear half of the battery (the part located behind the center of the battery in the vehicle's front-to-rear direction) 1 E side edge 1 E1 Rear end of side edge C. Center of the vehicle in the longitudinal direction G center of gravity 4 Battery protection member (floor frame member) 4 F front 4 R rear end 4 VA Vertically aligned section (the section aligned vertically with the rear end of the battery side edge) 4 SH Bottom surface 4 SV Vertical side 10 Bracket 11 First Bracket 12 Second Bracket

Claims

1. a battery for driving a vehicle that is disposed under a floor panel and has a center of gravity located rearward of the center of the battery in the vehicle's longitudinal direction; a pair of floor framework members provided on the underside of the floor panel and extending along left and right side edges of the battery, respectively; a plurality of brackets for fixing the battery to the pair of floor framework members; Equipped with The rear portions of the pair of floor framework members extend so that the distance between them in the vehicle width direction becomes smaller toward the rear of the vehicle, The plurality of brackets include: a first bracket that fixes a portion of the battery located forward of a center of the vehicle in a longitudinal direction to the floor framework member; a second bracket that fixes a portion of the battery that is located rearward of the center of the vehicle in the front-rear direction to the floor framework member; At least the first bracket extends outward in the vehicle width direction from a side edge of the battery and is coupled to a lower surface of the floor framework member; The second bracket extends upward from a side edge of the battery and is connected to a vertical side surface of the floor frame member at the rear portion on the outer side in the vehicle width direction.

2. The pair of floor framework members are a front portion disposed on the outer side of the side edge portion in the vehicle width direction and aligned with the side edge portion in the vehicle width direction; a rear portion extending inward and upward in the vehicle width direction from a rear end of the front portion, with at least a portion of the rear portion being disposed above the rear end of the side edge portion and aligned in the up-and-down direction with the rear end; Each of them has the first bracket is coupled to the front portion; 2. The vehicle drive battery mounting structure according to claim 1, wherein the second bracket is coupled to a portion of the rear portion that is aligned vertically with a rear end of the side edge portion.

3. the floor framework member has a vertical side surface on an outer side in the vehicle width direction and a vertical side surface on an inner side in the vehicle width direction, 3. The vehicle drive battery mounting structure according to claim 1, wherein the second bracket is coupled to the vertical side surface on the outer side in the vehicle width direction.

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