Battery fixing structure

Abstract

To provide a battery fixing structure which can accurately regulate jumping-out of a battery at the time of a collision while suppressing a large change of a vehicle body even when the size of the battery mounted in the vehicle body is changed.SOLUTION: A battery fixing structure includes: a battery mounting member 17 on which a battery 15 can be mounted in an engine room 3; a bracket 30 for joining a front fender panel 50 to a front fender frame 10 outside in a vehicle width direction of the battery mounting member 17; and a side regulation member 32 (first regulation member) which is integrally provided on the bracket 30 and is arranged at a position which faces an outside surface in the vehicle width direction of the battery 15 mounted on the battery mounting member 17 and at which the battery 15 is displaced outward in the vehicle width direction at the time of a collision of a vehicle 1. The side regulation member 32 (first regulation member) is joined to the battery mounting member 17.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a battery fixing structure for fixing a battery installed in an engine room of a vehicle such as an automobile to a vehicle body.

Background Art

[0002] Generally, a battery is mounted in an engine room of a vehicle such as an automobile as a power source for various electrical components. The battery is a rechargeable secondary battery such as, for example, a lead storage battery or a lithium ion battery.

[0003] Generally, such a battery becomes larger in size and heavier as the power storage amount increases.

[0004] For this reason, various techniques have been proposed as battery fixing structures for accommodating large-sized batteries.

[0005] For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-225750) discloses a structure in which a battery bracket for placing a large-sized battery is provided on the upper part of a front side frame, and a vulnerable part is formed at a corner of the battery bracket. Thus, the battery bracket structure of Patent Document 1 enables mounting of a large-sized battery and also enables improvement of the collision absorption efficiency during a frontal collision.

[0006] By the way, it is common to fix the battery to the vehicle body by attaching rods to both ends of a stay provided on the upper surface and hooking the lower ends of the rods into holes provided in a vehicle body skeleton or the like. Further, various measures are taken so that the battery does not jump out to the front of the vehicle body or the like due to the impact of a collision when the vehicle has a frontal collision.

[0007] For example, in addition to fixing by a stay and rods, a regulating member or the like for preventing jumping out during a collision is provided around the battery.

[0008] Such a regulating member is generally designed together with the vehicle body frame at the development stage of the vehicle body frame. Therefore, the regulating member is pre-assembled to the vehicle body frame simultaneously with the assembly of the vehicle body frame members.

Prior Art Documents

Patent Documents

[0009]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0010] However, when mounting a large battery on a vehicle body frame with a regulating member pre-assembled, depending on the size of the battery, there is a risk that the battery cannot be mounted. On the other hand, when expanding the vehicle body frame outward in the vehicle width direction, there is a risk that large-scale design changes are required. Furthermore, when expanding the vehicle body frame, there is a risk that the front fender panel attached to the vehicle body frame cannot be attached.

[0011] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery fixing structure capable of accurately regulating the ejection of the battery during a collision while suppressing a significant change in the vehicle body even when changing the size of the battery mounted on the vehicle body.

Means for Solving the Problems

[0012] A battery fixing structure according to an aspect of the present invention includes a battery mounting member on which a battery can be placed in an engine room, a bracket for joining a vehicle body panel to a vehicle body frame on the outer side in the vehicle width direction of the battery mounting member, and a first regulating member that is provided integrally with the bracket and is disposed at a position facing the outer side surface in the vehicle width direction of the battery placed on the battery mounting member and at a position where the battery is displaced outward in the vehicle width direction when the vehicle collides. The first regulating member is joined to the battery mounting member.

Advantages of the Invention

[0013] According to the battery fixing structure of the present invention, even when changing the size of the battery mounted on the vehicle body, it is possible to accurately regulate the ejection of the battery during a collision while suppressing a significant change in the vehicle body.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0015] The embodiments of the present invention will be described below with reference to the drawings.

[0016] In the drawings used in the following description, in order to make each component recognizable on the drawing, the scales are different for each component. Therefore, the present invention is not limited only to the quantity of the components, the shape of the components, the ratio of the sizes of the components, and the relative positional relationship of each component described in these drawings.

[0017] As an example of applying the battery fixing structure in this embodiment to the engine room, the configuration of the left side of the vehicle body of a front-engine type vehicle will be described. In the following description, when it is described as "joined", the joining method is assumed to be performed using joining means typified by fusion joining or mechanical joining or the like.

[0018] As shown in FIG. 1, the vehicle body 2 of the vehicle 1 has an engine room 3 at the front.

[0019] The vehicle body 2 has, as various vehicle body skeletons constituting the engine room 3, a turbo board 4, a front side frame 5, an upper side frame 6, a radiator support side 7, a suspension tower 8, a wheel apron 9, and a front fender frame 10. Note that these vehicle body skeletons are formed by press-working sheet metal members made of, for example, high-strength steel plates.

[0020] The turbo board 4 extends in the vehicle width direction as a partition wall partitioning the cabin and the engine room 3.

[0021] The front side frame 5 extends outward in the vehicle width direction of the turbo board 4 from the lower part of the turbo board 4 toward the front of the vehicle body 2.

[0022] The upper side frame 6 is disposed outside the engine room 3 in the vehicle width direction. The upper side frame 6 extends forward along the engine room 3 from the outside in the vehicle width direction of a cowl top (not shown).

[0023] Note that, as shown in FIG. 2, a front bracket 6a and a rear bracket 6b that stand upward are provided on the upper surface of the upper side frame 6.

[0024] The radiator support side 7 supports the outside in the vehicle width direction of a radiator panel (not shown) at the front of the vehicle body. Also, the upper end of the radiator support side 7 is joined to the lower surface of the tip of the upper side frame 6.

[0025] Furthermore, the radiator support side 7 has a joining flange 7a.

[0026] The joining flange 7a extends outward in the vehicle width direction from the side surface of the radiator support side 7. The tip of the front side frame 5 is joined to the back surface of the joining flange 7a thus extended.

[0027] The suspension tower 8 is provided between the front side frame 5 and the upper side frame 6. This suspension tower 8 supports the upper part of a suspension device (not shown).

[0028] As shown in FIG. 2, the wheel apron 9 is provided at the front part of the suspension tower 8. Further, when the wheel apron 9 is joined to the upper surface of the front side frame 5, it extends upward toward the outside in the vehicle width direction.

[0029] As shown in FIG. 2, the front fender frame 10 is provided, for example, outside the wheel apron 9 in the vehicle width direction. The upper end part of the front fender frame 10 is joined to the lower surface of the upper side frame 6. Further, the rear end part of the front fender frame 10 is joined to the end part outside the wheel apron 9 in the vehicle width direction.

[0030] Also, the front fender frame 10 has a bracket mounting surface 10a.

[0031] The bracket mounting surface 10a is provided on the outer surface of the front fender frame 10 in the vehicle width direction.

[0032] The bracket 30 can be attached to the bracket mounting surface 10a. That is, the bracket 30 can be attached to the bracket mounting surface 10a in a process after the assembly process of the vehicle body frame.

[0033] This bracket 30, together with the front bracket 6a and the rear bracket 6b, fixes the front fender panel 50 as a body panel to the body frame.

[0034] For this purpose, the bracket 30 is configured to have, for example, a pair of bracket joining flanges 30a and a fender panel mounting flange 30b.

[0035] The pair of bracket joining flanges 30a are provided at positions facing the outer side in the vehicle width direction of the bracket mounting surface 10a. Also, each of the bracket joining flanges 30a is formed at a predetermined interval along the vehicle vertical direction of the bracket mounting surface 10a.

[0036] Each of such bracket joining flanges 30a can come into contact with the bracket mounting surface 10a.

[0037] The fender panel mounting flange 30b is formed at the upper part of the bracket 30. The fender panel mounting flange 30b functions as a flange for attaching the front part of the front fender panel 50.

[0038] The bracket 30 configured in this way can be joined in a state where each of the bracket joining flanges 30a is in contact with the bracket mounting surface 10a. Note that the bracket 30 is formed, for example, by pressing a sheet metal member made of high-strength steel plate or the like.

[0039] Here, as shown in FIG. 2, the front fender panel 50 is configured to have an upper flange 50a and a front flange 50b.

[0040] The upper flange 50a extends inward in the vehicle width direction from the upper edge portion of the front fender panel 50 in the vehicle body up-and-down direction. The upper flange 50a functions as a joint portion for attaching the upper part of the front fender panel 50 to the upper side frame 6. Therefore, the upper flange 50a can be brought into contact with the upper surfaces of each of the front bracket 6a and the rear bracket 6b from above.

[0041] The front flange 50b extends forward in the vehicle body from the front edge portion of the front fender panel 50 in the vehicle body front-rear direction. This front flange 50b is provided at a position facing the outside in the vehicle width direction of the fender panel attachment flange 30b. Therefore, when attaching the front part of the front fender panel 50 to the bracket 30, the front flange 50b can be brought into contact with the fender panel attachment flange 30b.

[0042] The front fender panel 50 configured as described above can be joined using clips (not shown) or the like in a state where the upper flange 50a and the front flange 50b are brought into contact with the front bracket 6a, the rear bracket 6b, and the fender panel attachment flange 30b.

[0043] A battery mounting member 17 for mounting the battery 15 is provided on the left side portion of the vehicle body configured by such various vehicle body skeletons.

[0044] As shown in FIGS. 2 and 3, the battery mounting member 17 is, for example, at the front part of the wheel apron 9 and is disposed between the front side frame 5 and the front fender frame 10. Thereby, the battery mounting member 17 is joined to the wheel apron 9, the front side frame 5, and the front fender frame 10. Such a battery mounting member 17 is formed, for example, by pressing a sheet metal member made of high-strength steel plate or the like.

[0045] Specifically, as shown in FIG. 3, the battery mounting member 17 is configured to include a top plate portion 17a, a front wall portion 17c, and side wall portions 17e.

[0046] The top plate portion 17a extends in the vehicle width direction. The top plate portion 17a has a mounting surface 17b on which the battery tray 16 can be mounted in a region on the inner side in the vehicle width direction (see FIGS. 3 and 4). The mounting surface 17b is formed by a substantially horizontal plane. This mounting surface 17b is disposed at a position higher than the upper surface of the front side frame 5.

[0047] Here, in a region on the outer side in the vehicle width direction, a part of the front side of the top plate portion 17a is cut out. As a result, the front-rear width of a part of the region on the outer side in the vehicle width direction of the top plate portion 17a is formed to be narrower than the front-rear width of the inner side in the vehicle width direction (the mounting surface 17b).

[0048] The front wall portion 17c extends downward from the front edge of the vehicle body of the top plate portion 17a. Therefore, a part of the front wall portion 17c is bent in a crank shape along the shape where the top plate portion 17a is cut out.

[0049] The side wall portion 17e extends downward from the inner edge in the vehicle width direction of the mounting surface 17b. The lower edge of this side wall portion 17e is joined to the front side frame 5.

[0050] Among the front wall portion 17c and the side wall portions 17e, as shown in FIG. 3, the front wall portion 17c is provided with a front rod hole 17g and a side regulating member mounting surface 17k. In addition, a pair of front regulating member mounting surfaces 17h are provided at the corner formed by the front wall portion 17c and the side wall portions 17e. Further, a rear rod mounting member 20 is provided on the wheel apron 9 at a position facing the front rod hole 17g via the battery mounting member 17.

[0051] The front rod hole 17g is provided at a substantially central portion in the vehicle width direction of the mounting surface 17b. This front rod hole 17g has an elongated hole shape that can hook a hook.

[0052] The side regulating member mounting surface 17k is set to the surface among the surfaces formed by the front wall portion 17c that substantially faces the front end of the front fender frame 10. Such an opposing surface is formed by bending the front wall portion 17c in a crank shape along the shape of the top plate portion 17a. The side regulating member mounting surface 17k and the pair of front regulating member mounting surfaces 17h are flat surfaces.

[0053] As shown in FIGS. 2, 3, and 4, the rear rod mounting member 20 is provided at a position facing the rear surface of the battery 15. Therefore, the rear rod mounting member 20 has a rear rod mounting surface 20a that stands up substantially perpendicularly from the inclined surface of the wheel apron 9.

[0054] A rear rod hole 21 is provided in the rear rod mounting surface 20a. The rear rod hole 21 has an elongated hole shape that can hook a hook.

[0055] For the sake of convenience, the surfaces of the battery 15 and the battery tray 16 are defined as follows.

[0056] That is, as shown in FIG. 5, in a state where the battery 15 and the battery tray 16 are placed on the battery placement member 17, the surface facing the front of the vehicle body is defined as the front surface, the surface facing the front surface is defined as the rear surface, and the surface in the vehicle width direction is defined as the side surface. Also, in this state, the surface in the vertical direction is defined as the upper surface and the bottom surface.

[0057] A fixing member for fixing the battery 15 to the battery placement member 17 can be attached to the battery placement member 17 and the rear rod mounting member 20 configured as described above. For this reason, fixing members are arranged around the battery 15.

[0058] For example, as shown in FIGS. 2 and 5, on the front side of the battery 15 placed on the placement surface 17b via the battery tray 16, the lower end of the front rod 26 is locked in the front rod hole 17g. Also, on the rear side of the battery 15, the lower end of the rear rod 27 is locked in the rear rod hole 21. Further, the upper ends of the front rod 26 and the rear rod 27 are fastened to the battery stay 25 arranged in the lateral direction on the upper surface of the battery 15 with nuts. Thereby, the front rod 26, the rear rod 27, and the battery stay 25 constitute a fixing member for stably fixing the battery 15 to the battery placement member 17. Note that various fixing members of such a kind are selectively used with shapes corresponding to the size of the battery 15 and the like. For this reason, the various fixing members can stably fix the battery 15 to the battery placement member 17 even when the size of the battery 15 and the like are changed.

[0059] Around the battery 15 fixed in this way, when the vehicle 1 collides, a plurality of restricting members for restricting the displacement of the battery 15 are arranged.

[0060] Specifically described, on the side restricting member attachment surface 17k of the battery placement member 17 and the pair of front restricting member attachment surfaces 17h, as shown in FIGS. 2, 4, and 5, as restricting members, a side restricting member 32 and a front restricting member 40 are provided.

[0061] The side restricting member 32 is integrally provided inside the vehicle width direction of the bracket 30. The side restricting member 32 has a substantially L-shaped configuration that extends inward in the vehicle width direction from the bracket 30 and bends downward. The side restricting member 32 is formed, for example, by press working a sheet metal member made of high-strength steel plate or the like.

[0062] Such a side restricting member 32 restricts the amount of displacement in which the battery 15 moves outward in the vehicle width direction due to inertial force when the vehicle 1 collides. For this reason, the side restricting member 32 is disposed at a position facing the outer surface of the battery 15 in the vehicle width direction and at a position where the battery 15 is displaced outward in the vehicle width direction when the vehicle 1 collides.

[0063] Specifically, the side restricting member 32 includes a top plate portion 32a, a vertical wall portion 32b, and a joining flange 32c.

[0064] As shown in FIG. 5, the top plate portion 32a extends inward in the vehicle width direction from the front edge portion at a substantially central portion of the bracket 30 in the vehicle body up-and-down direction. The top plate portion 32a thus extended is formed substantially parallel to the mounting surface 17b of the battery mounting member 17. That is, the top plate portion 32a is disposed substantially perpendicular to the outer surface of the battery 15 in the vehicle width direction.

[0065] The vertical wall portion 32b extends downward from the edge portion on the inner side in the vehicle width direction of the top plate portion 32a. As shown in FIG. 5, the vertical wall portion 32b is disposed at a substantially central portion in the vehicle body front-rear direction at a position facing the outer surface of the battery 15 in the vehicle width direction. Further, the height of the vertical wall portion 32b is set to a height at which the upper end of the vertical wall portion 32b is positioned substantially at the center of the battery 15 in the vehicle body up-and-down direction.

[0066] The joining flange 32c is formed at the lower portion of the vertical wall portion 32b. The joining flange 32c is provided at a position facing the outer side in the vehicle width direction of the side restricting member mounting surface 17k. Therefore, the joining flange 32c can come into contact with the side restricting member mounting surface 17k from the outer side in the vehicle width direction.

[0067] The side restricting member 32 configured as described above can be joined to the front fender frame 10 and the battery mounting member 17 together with the bracket 30.

[0068] Specifically, the side regulating member 32, together with the bracket 30, can be joined in a state where each of the bracket joining flanges 30a and the joining flange 32c is integrally abutted against the bracket mounting surface 10a and the side regulating member mounting surface 17k from the outside in the vehicle width direction.

[0069] Therefore, the joining process of the bracket 30 and the side regulating member 32 is performed after the process in which the vehicle body skeleton is assembled and the battery mounting member 17 is provided on the vehicle body skeleton.

[0070] Such a side regulating member 32 can have its shape changed according to the size of the battery 15.

[0071] For example, as shown in FIG. 6, when the large battery 15b is mounted, the shape of the side regulating member 32 is changed based on the shape, dimensions, etc. of the large battery 15b.

[0072] Specifically, the shape of the vertical wall portion 32b is bent in a stepped shape together with the top plate portion 32a. That is, a shelf portion 32d is additionally formed between the vertical wall portion 32b and the joining flange 32c as shown in FIG. 7.

[0073] The shelf portion 32d is formed at a position facing the bottom surface of the large battery tray 16b. And the shelf portion 32d supports a part of the bottom surface on the outside in the vehicle width direction of the large battery tray 16b. Therefore, the height of the shelf portion 32d in the vehicle body up-and-down direction is substantially equal to the height of the mounting surface 17b. Thereby, even when the large battery 15b is mounted on the battery mounting member 17, it is possible to regulate the movement of the large battery 15b outward in the vehicle width direction.

[0074] In addition, in order to accurately regulate the displacement amount of the battery 15 or the large battery 15b moving outward in the vehicle width direction during a collision, various conditions such as the width, plate thickness, and shape of the top plate portion 32a, the vertical wall portion 32b, the joining flange 32c, and the shelf portion 32d have been obtained in advance through experiments, simulations, etc.

[0075] Thus, in this embodiment, the side restricting member 32 corresponds to a specific example as the first restricting member.

[0076] The front restricting member 40 is disposed, for example, at a position facing the front surface of the battery 15 and at a position where the battery 15 displaces forward of the vehicle body when the vehicle 1 collides. Further, the height of the front restricting member 40 is set to be substantially equal to, for example, the height of the battery tray 16. For this reason, the height of the front restricting member 40 is set lower than the height of the side restricting member 32.

[0077] Such a front restricting member 40 restricts the amount of displacement in which the battery 15 moves forward of the vehicle body by inertial force when the vehicle 1 collides. Therefore, the front restricting member 40 is formed of, for example, a sheet metal member made of high-strength steel plate or the like.

[0078] More specifically, the front restricting member 40 is formed by a pair of flat plates 40a.

[0079] The pair of flat plates 40a forms a substantially V-shaped shape in a plan view that opens at a substantially right angle toward the front surface of the battery 15. As shown in FIG. 5, the pair of flat plates 40a are disposed at positions facing the respective front restricting member mounting surfaces 17h. Therefore, the pair of flat plates 40a are disposed at substantially the center in the vehicle width direction of the battery 15 at a position facing the front surface of the battery 15.

[0080] At the lower portions of such a pair of flat plates 40a, a pair of joint portions 40b for joining to the respective front restricting member mounting surfaces 17h are continuously formed. The pair of joint portions 40b can be joined in a state where each is in contact with the respective front restricting member mounting surface 17h. That is, the front restricting member 40 can be joined to the corner portion of the battery mounting member 17.

[0081] Therefore, the joining process of the front regulating member 40 is performed after the process in which the vehicle body skeleton is assembled and the battery mounting member 17 is provided on the vehicle body skeleton.

[0082] Such a front regulating member 40 can be changed in shape according to the size of the battery 15.

[0083] For example, as shown in FIG. 6, when the large-sized battery 15b is mounted, the shape of the front regulating member 40 is changed based on the shape, dimensions, etc. of the large-sized battery 15b.

[0084] Specifically described, as shown in FIG. 7, a part of the edge of each flat plate 40a facing the front surface of the large-sized battery tray 16b is cut out in an L shape. Thereby, even when the large-sized battery 15b is placed on the battery mounting member 17, it is possible to restrict the forward movement of the large-sized battery 15b.

[0085] In addition, in order to accurately regulate the displacement amount of the battery 15 or the large-sized battery 15b moving forward of the vehicle body during a collision, various conditions such as the thickness and shape of each flat plate 40a have been obtained in advance through experiments, simulations, etc.

[0086] Thus, in the present embodiment, the front regulating member 40 corresponds to a specific example as the second regulating member.

[0087] And the side regulating member 32 provided integrally with the bracket 30 and the front regulating member 40 are selectively used according to the size of the battery 15. That is, on the vehicle body skeleton, etc., the side regulating member 32 and the front regulating member 40 selected according to the size of the battery 15 placed on the battery tray 16 are attached.

[0088] According to such an embodiment, the battery fixing structure includes a battery mounting member 17 on which the battery 15 can be placed in the engine room 3, a bracket 30 for joining the front fender panel 50 to the front fender frame 10 on the outer side in the vehicle width direction of the battery mounting member 17, and a side restricting member 32 that is provided integrally with the bracket 30 and is disposed at a position facing the outer side surface in the vehicle width direction of the battery 15 placed on the battery mounting member 17 and at a position where the battery 15 is displaced outward in the vehicle width direction when the vehicle 1 collides. The side restricting member 32 is joined to the battery mounting member 17.

[0089] With these configurations, the battery fixing structure can accurately restrict the protrusion of the battery 15 during a collision while suppressing a significant change in the vehicle body 2 even when changing the size of the battery 15 mounted on the vehicle body 2.

[0090] That is, in the present embodiment, the side restricting member 32 that restricts the displacement of the battery 15 outward in the vehicle width direction is provided integrally with the bracket 30 for attaching the front fender panel 50 to the vehicle body 2. Such a side restricting member 32 is attached to the vehicle body 2 together with the bracket 30 after the assembly process of the vehicle body 2. Therefore, by simply changing the shape of the side restricting member 32 integrally formed with the bracket 30 according to the battery 15, the side restricting member 32 can be disposed at a position adjacent to the outer side surface in the vehicle width direction of the battery 15. Thereby, a mounting space corresponding to the size of the battery 15 can be formed in the engine room 3 without changing the vehicle body skeleton of the vehicle body 2. In addition, the side restricting member 32 disposed at a position adjacent to the outer side surface in the vehicle width direction of the battery 15 can restrict the displacement of the battery 15 outward in the vehicle width direction during a collision.

[0091] In this case, by integrally forming the side regulating member 32 with the bracket 30, it is possible to connect the side regulating member 32 to the front fender panel 50 via the bracket 30. Therefore, by simply joining the side regulating member 32 to the battery mounting member 17, sufficient resistance can be generated against the side regulating member 32 where the collision load concentrates due to the inertial force of the battery 15 during a collision of the vehicle 1.

[0092] More specifically, the side regulating member 32 has a vertical wall portion 32b facing the battery 15 and a top plate portion 32a extending outward in the vehicle width direction from the vertical wall portion 32b. Further, the top plate portion 32a is connected to the front fender panel 50 via the bracket 30. With these configurations, the top plate portion 32a can generate sufficient resistance against the vertical wall portion 32b where the collision load concentrates due to the inertial force of the battery 15 during a collision of the vehicle 1. That is, as shown in FIG. 8, when the right front portion of the vehicle 1 undergoes a small overlap frontal collision, the side regulating member 32 can accurately regulate the displacement amount of the battery 15 moving outward in the vehicle width direction when a moment acting outward in the vehicle width direction is applied to the battery 15.

[0093] Here, the position of the vertical wall portion 32b facing the outer surface of the battery 15 in the vehicle width direction can be easily changed, for example, by appropriately interposing a shelf portion 32d having an arbitrary length according to the size of the battery 15 or the like between the vertical wall portion 32b and the joining flange 32c.

[0094] For example, in the case of the side regulating member 32 for the standard battery 15, a joining flange 32c is formed substantially linearly at the tip of the vertical wall portion 32b (see FIG. 5), and in the case of the side regulating member 32 for the large battery 15b, a shelf portion 32d can be interposed between the vertical wall portion 32b and the joining flange 32c (see FIGS. 6 and 7). Thus, by forming the shelf portion 32d between the vertical wall portion 32b and the joining flange 32c as needed, the shape of the side regulating member 32 can be easily optimized according to the size of the battery 15 and the like. And by selectively using such a side regulating member 32, the battery fixing structure of the present embodiment can regulate the displacement amount of the battery 15 moving outward in the vehicle width direction with different sizes without changing the vehicle body skeleton of the vehicle body 2 and the like.

[0095] In addition, in the present embodiment, the battery fixing structure including the side regulating member 32 includes a front regulating member 40 that regulates the displacement of the battery 15 forward in the vehicle body. And the front regulating member 40 is attached to the corner of the battery mounting member 17 after the assembly process of the vehicle body 2. Therefore, by only changing the shape of the front regulating member 40 according to the battery 15, the front regulating member 40 can be arranged at a position adjacent to the front surface of the battery 15. Thereby, a mounting space corresponding to the size of the battery 15 can be formed in the engine room 3 without changing the vehicle body skeleton of the vehicle body 2. In addition, the front regulating member 40 arranged at a position adjacent to the front surface of the battery 15 can regulate the displacement of the battery 15 forward in the vehicle body during a collision.

[0096] Such a front regulating member 40 has sufficient resistance against the collision load generated by the inertial force of the battery 15 during a collision of the vehicle 1.

[0097] Specifically, the front restraint member 40 is integrally formed by a pair of flat plates 40a. The pair of flat plates 40a has a substantially V-shaped configuration in plan view that opens at a substantially right angle toward the front surface of the battery 15. Such a pair of flat plates 40a can be firmly joined in a state where the joining portions 40b formed continuously therewith are brought into contact with the respective front restraint member mounting surfaces 17h. Therefore, the front restraint member 40 can generate sufficient resistance against the collision load caused by the inertial force of the battery 15 during a collision of the vehicle 1 only by being joined to the corner portion of the battery mounting member 17. That is, as shown in FIG. 8, the front restraint member 40 can accurately regulate the amount of displacement of the battery 15 moving forward of the vehicle body when the right front portion of the vehicle 1 undergoes a small overlap frontal collision.

[0098] Here, the position of the front restraint member 40 facing the front surface of the battery 15 can be easily changed, for example, by appropriately providing an arbitrary notch in a part of the pair of flat plates 40a according to the size of the battery 15 or the like.

[0099] For example, in the front restraint member 40 for a standard battery 15, the edges of the pair of flat plates 40a facing the battery 15 are formed substantially linearly (see FIG. 5), and in the front restraint member 40 for a large battery 15b, an L-shaped notch can be provided in a part of the edges of the pair of flat plates 40a (see FIGS. 6 and 7). Thus, by providing a notch in a part of the edges of the pair of flat plates 40a as needed, the shape of the front restraint member 40 can be easily optimized according to the size of the battery 15 or the like. And such a front restraint member 40 can be selectively used together with the side restraint member 32 according to the size of the battery 15 or the like. Thereby, the battery fixing structure of the present embodiment can regulate the amount of displacement of the battery 15 of different sizes or the like moving forward of the vehicle body without changing the vehicle body skeleton or the like of the vehicle body 2.

[0100] In addition, various fixing members (battery stay 25, front rod 26, and rear rod 27) for fixing to the battery mounting member 17 (mounting surface 17b) are arranged on the front, upper, and rear surfaces of the battery 15. And the height of the side restricting member 32 (vertical wall portion 32b) with respect to the battery 15 fixed by these various fixing members is set higher than the height of the front restricting member 40 (pair of flat plates 40a) with respect to the battery 15. Thereby, with respect to the region outside the vehicle width direction of the battery 15 where the fixing members are not arranged, the side restricting member 32 can enhance the restriction of the displacement amount in which the battery 15 moves outward in the vehicle width direction. Therefore, the battery fixing structure of the present embodiment can accurately restrict the protrusion of the battery 15 even in the case of a large battery 15b to which a strong moment acts outward in the vehicle width direction at the initial stage of a collision when the right front portion of the vehicle 1 undergoes a small overlap frontal collision.

[0101] The invention described in the above embodiments is not limited to those forms, and various modifications can be implemented without departing from the gist thereof at the implementation stage. Furthermore, the above forms include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

[0102] Also, even if some constituent elements are deleted from all the constituent elements shown in the above embodiments, if the described problems can be solved and the described effects can be obtained, the configuration from which these constituent elements are deleted can be extracted as an invention.

Explanation of Reference Numerals

[0103] 1 ··· Vehicle 2 ··· Vehicle body 3 ··· Engine room 4 ··· Turbo board 5 ··· Front side frame 6 ··· Upper side frame 6a ··· Front bracket 6b ··· Rear bracket 7···Radiator support side 7a···Joint flange 8···Suspension tower 9···Foil apron 10···Front fender frame 10a···Bracket mounting surface 15···Battery 15b···Large battery 16···Battery tray 16b···Large battery tray 17···Battery mounting member 17a···Top plate part 17b···Mounting surface 17c···Front wall part 17e···Side wall part 17g···Front rod hole 17h···Mounting surface for a pair of front regulating members 17k···Mounting surface for side regulating member 20···Rear rod mounting member 20a···Rear rod mounting surface 21···Rear rod hole 25···Battery stay 26···Front rod 27···Rear rod 30···Bracket 30a···Bracket joint flange 30b···Flange 32···Side regulating member (first regulating member) 32a···Top plate part 32b···Vertical wall part 32c···Joint flange 32d···Bending part 40···Front regulating member (second regulating member) 40a···Flat plate 40b···Joint part 50···Front fender panel 50a···Upper flange 50b···Front flange

Claims

1. a battery mounting member on which a battery can be mounted in an engine room; a bracket for joining a vehicle body panel to a vehicle body skeleton outside the vehicle width direction of the battery mounting member; a first restricting member that is provided integrally with the bracket, is located at a position facing the outer side surface in the vehicle width direction of the battery mounted on the battery mounting member, and is arranged at a position where the battery is displaced outward in the vehicle width direction when the vehicle collides; and the first restricting member is joined to the battery mounting member, and is a battery fixing structure.

2. further comprising a second restricting member joined to the battery mounting member; the second restricting member is located at a position facing the front surface in the vehicle body front-rear direction of the battery mounted on the battery mounting member, and is arranged at a position where the battery is displaced forward in the vehicle body when the vehicle collides, and is the battery fixing structure according to claim 1.

3. the height of the first restricting member with respect to the battery mounted on the battery mounting member is set higher than the height of the second restricting member with respect to the battery, and is the battery fixing structure according to claim 2.

4. comprising a fixing member for fixing the battery to the battery mounting member; the fixing member includes a battery stay arranged in the lateral direction on the upper surface of the battery; and rods fixed to each of both ends of the battery stay and locking each of the lower end portions to fix the battery to the battery mounting member, and is the battery fixing structure according to claim 1.

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