Battery fixing structure

Abstract

The invention provides a battery fixing structure capable of reliably restricting the separation 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 on the vehicle body is changed. A battery fixing structure is provided with: a battery mounting member (17) capable of mounting a battery (15) in an engine compartment (3); a bracket (30) for joining the front fender panel (50) to the front fender frame (10) on the outside of the battery mounting member (17) in the vehicle width direction; and a side restricting member (32, first restricting member) provided integrally with the bracket (30) and disposed at a position facing the outer 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 when the vehicle (1) collides, the side restricting member (32, first restricting member) and the battery mounting member (17) being joined to each other, the side restricting member (32, first restricting member) being disposed at a position facing the outer surface in the vehicle width direction of the battery (15) mounted on the battery mounting member (17).

Description

Technical Field

[0001] The present invention relates to a battery fixing structure for fixing a battery provided 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, for example, a rechargeable secondary battery such as a lead storage battery or a lithium ion battery.

[0003] The more power such a battery can store, the larger its size and the heavier its weight.

[0004] Therefore, various technologies have been proposed as battery fixing structures for dealing with large batteries.

[0005] For example, Patent Document 1 (Japanese Patent Application Publication No. 2002-225750) discloses a structure in which a battery bracket for mounting a large battery is provided on the upper portion of a front side frame, and a fragile portion is formed at a corner of the battery bracket. Thus, the battery bracket structure of Patent Document 1 can not only mount a large battery, but also improve the collision absorption efficiency during a frontal collision.

[0006] The battery is generally fixed to the vehicle body by installing rods at both ends of a stay provided on the upper surface and hooking the lower end of the rod into a hole provided on the vehicle body frame, etc. In addition, various countermeasures are taken to prevent the battery from being detached to the front of the vehicle body due to the impact caused by the collision when the vehicle is hit head-on.

[0007] For example, in addition to being fixed by stays and rods, a restriction member or the like is provided around the battery to prevent it from coming off in the event of a collision.

[0008] Such a restraining member is generally designed together with the vehicle body frame at the development stage of the vehicle body frame. Therefore, the restraining member is pre-assembled on the vehicle body frame while the vehicle body frame components are assembled.

[0009] Prior art literature

[0010] Patent Literature

[0011] Patent Document 1: Japanese Patent Application Publication No. 2002-225750 Summary of the invention

[0012] Technical problem to be solved by the invention

[0013] However, when mounting a large-sized battery on a vehicle body frame with pre-assembled restricted components, there is a possibility that batteries of some sizes may not be mountable. In response to this, if the vehicle body frame is expanded outward in the vehicle width direction, large-scale design changes may be required. Moreover, if the vehicle body frame is expanded, the front fender panel originally to be installed on the vehicle body frame may not be installable.

[0014] The present invention has been completed in view of the above circumstances, and an object thereof is to provide a battery fixing structure that can suppress significant changes to the vehicle body even when changing the size of the battery mounted on the vehicle body, and can reliably restrict the detachment of the battery during a collision.

[0015] Technical solution for solving the technical problem

[0016] A battery fixing structure according to one aspect of the present invention includes: a battery mounting member that can mount a battery in the engine room; a bracket that joins a vehicle body panel to the vehicle body frame on the outer side in the vehicle width direction of the battery mounting member; and a first restricting member that is integrally provided with the bracket and is disposed at a position opposite to the outer side surface in the vehicle width direction of the battery mounted on the battery mounting member and where the battery displaces outward in the vehicle width direction during a vehicle collision, wherein the first restricting member is joined to the battery mounting member.

[0017] Advantages of the invention

[0018] According to the battery fixing structure of the present invention, even when changing the size of the battery mounted on the vehicle body, significant changes to the vehicle body can be suppressed, and the detachment of the battery during a collision can be reliably restricted.

[0019] Brief description of the drawings

[0020] Figure 1 It is a perspective view showing a state where a battery is fixed in the engine room.

[0021] Figure 2 It is an exploded perspective view showing a fixing structure for fixing a battery in the engine room.

[0022] Figure 3 It is an enlarged perspective view showing a battery mounting member.

[0023] Figure 4 It is an enlarged perspective view showing a state where the battery fixed in the engine room is removed.

[0024] Figure 5 It is an enlarged perspective view showing a state where a battery is fixed in the engine room.

[0025] Figure 6 It is an enlarged perspective view showing a state where a large-sized battery is fixed in the engine room.

[0026] Figure 7 It is an enlarged perspective view showing the state of removing the large battery fixed in the engine room.

[0027] Figure 8 It is a perspective view showing the behavior of the battery when a small overlap frontal collision occurs at the right front part of the vehicle. Detailed implementation manners

[0028] The implementation manners of the present invention will be described below with reference to the accompanying drawings.

[0029] It should be noted that in the accompanying drawings used in the following description, in order for each component to have a size that can be recognized on the drawings, the scale of each component is different. Therefore, the present invention is not limited only to the number of components, the shape of the components, the dimensional ratio of the components, and the relative positional relationship of the components shown in these drawings.

[0030] As an example of applying the battery fixing structure in the present implementation manner to the engine room, the structure of the left side part of the body of a front-engine type vehicle will be described below. It should be noted that in the following description, when it is described as "joined", the joining is performed by a joining method represented by welding or mechanical joining, etc.

[0031] As Figure 1 shown, the body 2 of the vehicle 1 has an engine room 3 at the front part.

[0032] As various body skeletons constituting the engine room 3, the body 2 has: a footrest 4, a front side frame 5, an upper side frame 6, a radiator support side frame 7, a suspension tower 8, a wheel apron 9, and a front fender frame 10. In addition, these body skeletons are formed, for example, by stamping sheet metal parts made of high-strength steel plates, etc.

[0033] The footrest 4 extends in the vehicle width direction as a partition dividing the cab 8 and the engine room 3.

[0034] On the outer side in the vehicle width direction of the footrest 4, the front side frame 5 extends from the lower part of the footrest 4 toward the front of the body 2.

[0035] The upper side frame 6 is disposed on the outer side in the vehicle width direction of the engine room 3. The upper side frame 6 extends along the engine room 3 from the outer side in the vehicle width direction of an unillustrated front bulkhead panel toward the front of the body.

[0036] In addition, as Figure 2 shown, a front bracket 6a and a rear bracket 6b that stand upward are provided on the upper surface of the upper side frame 6.

[0037] The radiator support side frame 7 supports the outer side in the vehicle width direction of a radiator panel (not shown) at the front of the vehicle body. In addition, the upper end of the radiator support side frame 7 is joined to the lower surface of the front end of the upper side frame 6.

[0038] In addition, the radiator support side frame 7 has a joining flange 7a.

[0039] The joining flange 7a extends outward in the vehicle width direction from the side surface of the radiator support side frame 7. The front end of the front side frame 5 is joined to the back surface of the thus-extended joining flange 7a.

[0040] The suspension tower 8 is provided between the front side frame 5 and the upper side frame 6. The suspension tower 8 supports the upper part of a suspension device (not shown).

[0041] As Figure 2 shown, a wheel apron 9 is provided in front of the suspension tower 8. In addition, the wheel apron 9 extends upward toward the outer side in the vehicle width direction in a state of being joined to the upper surface of the front side frame 5.

[0042] As Figure 2 shown, a front fender frame 10 is provided, for example, on the outer side in the vehicle width direction of the wheel apron 9. The upper end portion of the front fender frame 10 is joined to the lower surface of the upper side frame 6. In addition, the rear end portion of the front fender frame 10 is joined to the end portion on the outer side in the vehicle width direction of the wheel apron 9.

[0043] In addition, the front fender frame 10 has a bracket mounting surface 10a.

[0044] The bracket mounting surface 10a is provided on the outer surface in the vehicle width direction of the front fender frame 10.

[0045] It is configured such that a bracket 30 can be mounted on the bracket mounting surface 10a. That is, it is configured such that the bracket 30 can be mounted on the bracket mounting surface 10a in a process after the assembly process of the vehicle body frame.

[0046] The bracket 30, together with the front bracket 6a and the rear bracket 6b, fixes a front fender panel 50, which is a vehicle body panel, to the vehicle body frame.

[0047] Therefore, the bracket 30 is configured, for example, to have a pair of bracket joining flanges 30a and a fender panel mounting flange 30b.

[0048] 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. In addition, the respective bracket joining flanges 30a are each formed at a predetermined interval in the vehicle up-and-down direction along the bracket mounting surface 10a.

[0049] Each of such bracket joining flanges 30a is configured to be able to come into contact with the bracket mounting surface 10a respectively.

[0050] The fender panel mounting flange 30b is formed on the upper part of the bracket 30. The fender panel mounting flange 30b functions as a flange for mounting the front part of the front fender panel 50.

[0051] The bracket 30 configured in this way is configured such that the respective bracket engaging flanges 30a can be engaged with the bracket mounting surface 10a in a state of being in contact therewith. In addition, the bracket 30 is formed, for example, by stamping a sheet metal part made of high-strength steel plate or the like.

[0052] Here, as Figure 2 shown, the front fender panel 50 is configured to have an upper flange 50a and a front flange 50b.

[0053] The upper flange 50a extends inward in the vehicle width direction from the upper edge portion in the vehicle up-and-down direction of the front fender panel 50. The upper flange 50a functions as a part for mounting the upper part of the front fender panel 50 to the joint portion of the upper side frame 6. Therefore, the upper flange 50a is configured to be able to contact the upper surfaces of the front bracket 6a and the rear bracket 6b respectively from above.

[0054] The front flange 50b extends forward in the vehicle body front-rear direction from the front edge portion of the front fender panel 50 in the vehicle body front-rear direction. The front flange 50b is provided at a position opposite to the outer side in the vehicle width direction of the fender panel mounting flange 30b. Therefore, the front flange 50b is configured to be able to contact the fender panel mounting flange 30b when mounting the front part of the front fender panel 50 to the bracket 30.

[0055] The front fender panel 50 configured in this way is configured to be able to be joined using a clip or the like (not shown) in a state where the upper flange 50a and the front flange 50b are in contact with the front bracket 6a, the rear bracket 6b, and the fender panel mounting flange 30b.

[0056] A battery mounting member 17 for mounting a battery 15 is provided on the left side portion of the vehicle body constituted by such various vehicle body frames.

[0057] As Figure 2 , Figure 3 shown, the battery mounting member 17 is disposed, for example, in the front part of the wheel apron 9 and 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 stamping a sheet metal part made of high-strength steel plate or the like.

[0058] Specifically, as Figure 3 shown, the battery mounting member 17 is configured to have a top plate portion 17a, a front wall portion 17c, and a side wall portion 17e.

[0059] The top plate portion 17a extends in the vehicle width direction. The top plate portion 17a has a placement surface 17b (see Figure 3 , Figure 4 ) in the region on the inner side in the vehicle width direction where the battery tray 16 can be placed. The placement surface 17b is formed by a substantially horizontal plane. The placement surface 17b is disposed at a position higher than the upper surface of the front side frame 5.

[0060] Here, in the region on the outer side in the vehicle width direction, a part of the front side of the top plate portion 17a is cut off. As a result, the front - rear width of a part of the region of the top plate portion 17a on the outer side in the vehicle width direction is formed to be narrower than the front - rear width of the inner side in the vehicle width direction (placement surface 17b).

[0061] The front wall portion 17c extends downward from the edge portion at the front 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 of the cut - off top plate portion 17a.

[0062] The side wall portion 17e extends downward from the edge portion on the inner side in the vehicle width direction of the placement surface 17b. The lower edge portion of the side wall portion 17e is joined to the front side frame 5.

[0063] On the front wall portion 17c among the front wall portion 17c and the side wall portion 17e, as Figure 3 shown, a front rod hole 17g and a side restraint member mounting surface 17k are provided. In addition, a pair of front restraint member mounting surfaces 17h are provided at the corner formed by the front wall portion 17c and the side wall portion 17e. Further, on the wheel apron 9, a rear rod mounting member 20 is provided at a position opposite to the front rod hole 17g via the battery placement member 17.

[0064] The front rod hole 17g is provided at substantially the center in the vehicle width direction of the placement surface 17b. The front rod hole 17g is in the shape of a long hole capable of hooking a hook.

[0065] The side restraint member mounting surface 17k is set as the surface of the front wall portion 17c that is substantially opposite to the front end of the front fender frame 10. In addition, such an opposite 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 restraint member mounting surface 17k and the pair of front restraint member mounting surfaces 17h are planes.

[0066] As Figure 2 , 3 , and as shown in Figure 4, the rear rod mounting member 20 is provided at a position opposite to the rear surface of the battery 15. Therefore, the rear rod mounting member 20 has a rear rod mounting surface 20a that stands up from the inclined surface of the wheel apron 9 in a substantially vertical direction.

[0067] A rear rod hole 21 is provided on the rear rod mounting surface 20a. The rear rod hole 21 is in the shape of a long hole capable of hooking a hook.

[0068] In addition, for convenience, the respective surfaces of the battery 15 and the battery tray 16 are defined as follows.

[0069] That is, as Figure 5 shown, in the 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 opposite to the front surface is defined as the rear surface, and the surfaces in the vehicle width direction are defined as the side surfaces. In addition, in this state, the surfaces in the vertical direction are defined as the upper surface and the bottom surface.

[0070] On the battery placement member 17 and the rear rod mounting member 20 configured in this way, a fixing member for fixing the battery 15 to the battery placement member 17 can be mounted. Therefore, fixing members are arranged around the battery 15.

[0071] For example, as Figure 2 , Figure 5 shown, on the front side of the battery 15 placed on the placement surface 17b via the battery tray 16, the lower end portion of the front rod 26 is engaged in the front rod hole 17g. In addition, on the rear side of the battery 15, the lower end portion of the rear rod 27 is engaged in the rear rod hole 21. Furthermore, the upper end portions of the front rod 26 and the rear rod 27 are fastened to the battery brace 25 arranged in the short side direction of the upper surface of the battery 15 by nuts. Thus, the front rod 26, the rear rod 27, and the battery brace 25 constitute a fixing member for stably fixing the battery 15 to the battery placement member 17. In addition, such various fixing members selectively use shapes corresponding to the size of the battery 15 and the like. Therefore, even when the size of the battery 15 and the like change, the various fixing members can stably fix the battery 15 to the battery placement member 17.

[0072] Around the battery 15 fixed in this way, a plurality of restricting members for restricting the displacement of the battery 15 when the vehicle 1 collides are arranged.

[0073] Specifically, as Figure 2 , 4 , 5 shown, on the side restricting member mounting surface 17k and a pair of front restricting member mounting surfaces 17h of the battery placement member 17, side restricting members 32 and front restricting members 40 are provided as restricting members.

[0074] The side restricting member 32 is integrally provided inside the vehicle width direction of the bracket 30. The side restricting member 32 is formed in a substantially L-shaped form extending from the bracket 30 toward the inside of the vehicle width direction and bending downward. The side restricting member 32 is formed, for example, by stamping a sheet metal member made of high-strength steel plate or the like.

[0075] When the vehicle 1 collides, such a side restricting member 32 restricts the displacement amount of the battery 15 displaced outward in the vehicle width direction due to inertial force. Therefore, the side restricting member 32 is disposed at a position facing the outer side surface of the battery 15 in the vehicle width direction and where the battery 15 displaces outward in the vehicle width direction when the vehicle 1 collides.

[0076] Specifically, the side restricting member 32 is configured to have a top plate portion 32a, a longitudinal wall portion 32b, and a joining flange 32c.

[0077] As Figure 5 shown, the top plate portion 32a extends from the front edge portion toward the inner side in the vehicle width direction at a substantially central portion in the vehicle height direction of the bracket 30. The thus-extended top plate portion 32a is formed to be substantially parallel to the mounting surface 17b of the battery mounting member 17. That is, the top plate portion 32a is disposed to be substantially perpendicular to the outer side surface of the battery 15 in the vehicle width direction.

[0078] The longitudinal 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 Figure 5 shown, the longitudinal wall portion 32b is disposed at a substantially central portion in the vehicle front-rear direction at a position facing the outer side surface of the battery 15 in the vehicle width direction. In addition, the height of the longitudinal wall portion 32b is set such that the upper end of the longitudinal wall portion 32b is located at a substantially central height in the vehicle height direction of the battery 15.

[0079] The joining flange 32c is formed at the lower portion of the longitudinal wall portion 32b. The joining flange 32c is disposed 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 abut against the side restricting member mounting surface 17k from the outer side in the vehicle width direction.

[0080] The side restricting member 32 configured in this way can be joined to the front fender frame 10 and the battery mounting member 17 together with the bracket 30.

[0081] Specifically, the side restricting member 32 can be joined together with the bracket 30 in a state where each bracket joining flange 30a and the joining flange 32c integrally abut against the bracket mounting surface 10a and the side restricting member mounting surface 17k from the outer side in the vehicle width direction.

[0082] Therefore, the joining process of the bracket 30 and the side restricting member 32 is performed after the process of assembling the vehicle body frame and setting the battery mounting member 17 on the vehicle body frame.

[0083] Such a side restricting member 32 can change its shape according to the size of the battery 15.

[0084] For example, as Figure 6 shown, when the large-sized battery 15b is mounted, the shape of the side restricting member 32 is changed according to the shape and size of the large-sized battery 15b.

[0085] Specifically, the shape of the longitudinal wall portion 32b is bent in a stepped shape together with the top plate portion 32a. That is, as Figure 7 shown, a shelf portion 32d is additionally formed between the longitudinal wall portion 32b and the engagement flange 32c.

[0086] The shelf portion 32d is formed at a position opposite to the bottom surface of the large battery tray 16b. And, the shelf portion 32d supports a part of the bottom surface on the vehicle width direction outer side of the large battery tray 16b. Therefore, the height of the shelf portion 32d in the vehicle up and down direction is substantially equal to the height of the mounting surface 17b. Thus, even in a state where the large battery 15b is mounted on the battery mounting member 17, the movement of the large battery 15b toward the vehicle width direction outer side can be restricted.

[0087] In addition, in order to reliably restrict the displacement amount of the battery 15 or the large battery 15b moving toward the vehicle width direction outer side during a collision, various conditions such as the width, plate thickness, and shape of the top plate portion 32a, the longitudinal wall portion 32b, the engagement flange 32c, and the shelf portion 32d are obtained in advance from experiments or simulations, etc.

[0088] In this way, in the present embodiment, the side restricting member 32 corresponds to a specific example of the first restricting member.

[0089] The front restricting member 40 is arranged, for example, at a position opposite to the front surface of the battery 15 and where the battery 15 moves forward in the vehicle body when the vehicle 1 collides. In addition, the height of the front restricting member 40 is set to be substantially the same as the height of the battery tray 16, for example. Therefore, the height of the front restricting member 40 is set lower than the height of the side restricting member 32.

[0090] When the vehicle 1 collides, such a front restricting member 40 restricts the displacement amount of the battery 15 moving forward in the vehicle body due to inertial force. Therefore, the front restricting member 40 is formed of a sheet metal member made of, for example, high-strength steel plate or the like.

[0091] Specifically, the front restricting member 40 is formed of a pair of flat plates 40a.

[0092] The pair of flat plates 40a forms a substantially V-shaped shape in plan view that opens substantially at a right angle toward the front surface of the battery 15. As Figure 5 shown, the pair of flat plates 40a are arranged at positions respectively opposite to the respective front restricting member mounting surfaces 17h. Therefore, the pair of flat plates 40a are arranged at a substantially central portion in the vehicle width direction of the battery 15 at a position opposite to the front surface of the battery 15.

[0093] Below a lower part of such a pair of flat plates 40a, a pair of engaging parts 40b for respectively engaging with each front restricting part mounting surface 17h are continuously formed. The pair of engaging parts 40b are configured to be able to respectively engage with each front restricting part mounting surface 17h in a butting state. That is, the front restricting part 40 can engage with a corner part of the battery mounting part 17.

[0094] Therefore, the engaging process of the front restricting part 40 is carried out after the process of assembling the vehicle body frame and setting the battery mounting part 17 on the vehicle body frame.

[0095] Such a front restricting part 40 can change its shape according to the size of the battery 15.

[0096] For example, as Figure 6 shown, when mounting the large-sized battery 15b, the shape of the front restricting part 40 is changed according to the shape and size of the large-sized battery 15b, etc.

[0097] Specifically, as Figure 7 shown, a part of the edge of each flat plate 40a opposite to the front surface of the large-sized battery tray 16b is cut into an L shape. Thus, even in a state where the large-sized battery 15b is mounted on the battery mounting part 17, the forward movement of the large-sized battery 15b can be restricted.

[0098] In addition, in order to reliably restrict the displacement amount of the battery 15 or the large-sized battery 15b moving forward in the vehicle body during a collision, various conditions such as the plate thickness and shape of each flat plate 40a are obtained in advance from experiments or simulations, etc.

[0099] In this way, in the present embodiment, the front restricting part 40 corresponds to a specific example of the second restricting part.

[0100] And, according to the size of the battery 15, the side restricting part 32 integrally provided with the bracket 30 and the front restricting part 40 can be selectively used. That is, on the vehicle body frame, etc., the side restricting part 32 and the front restricting part 40 selected according to the size of the battery 15 mounted on the battery tray 16 are installed.

[0101] According to such an embodiment, the battery fixing structure includes: a battery mounting part 17 that can mount the battery 15 in the engine room 3; a bracket 30 that is used to engage the front fender panel 50 with the front fender frame 10 on the outer side in the vehicle width direction of the battery mounting part 17; and a side restricting part 32 that is integrally provided with the bracket 30 and is arranged at a position opposite to the outer side surface in the vehicle width direction of the battery 15 mounted on the battery mounting part 17 and where the battery 15 displaces outward in the vehicle width direction when the vehicle 1 collides, wherein the side restricting part 32 engages with the battery mounting part 17.

[0102] With these structures, even when changing the size of the battery 15 mounted on the vehicle body 2, the battery fixing structure can reliably limit the detachment of the battery 15 during a collision while suppressing a significant change in the vehicle body 2.

[0103] 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 integrally provided on the bracket 30 for mounting the front fender panel 50 on the vehicle body 2. After the assembly process of the vehicle body 2, such a side restricting member 32 is mounted on the vehicle body 2 together with the bracket 30. Therefore, by only 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 arranged at a position adjacent to the outer side surface of the battery 15 in the vehicle width direction. 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 frame of the vehicle body 2. In addition, the side restricting member 32 arranged at a position adjacent to the outer side surface of the battery 15 in the vehicle width direction can restrict the displacement of the battery 15 outward in the vehicle width direction during a collision.

[0104] In this case, by integrally forming the side restricting member 32 with the bracket 30, the side restricting member 32 can be connected to the front fender panel 50 via the bracket 30. Therefore, by only engaging the side restricting member 32 with the battery mounting member 17, sufficient resistance can be generated on the side restricting member 32 where the collision load is concentrated due to the inertial force of the battery 15 when the vehicle 1 collides.

[0105] More specifically, the side restricting member 32 has a longitudinal wall portion 32b facing the battery 15 and a top plate portion 32a extending outward in the vehicle width direction from the longitudinal wall portion 32b. Moreover, the top plate portion 32a is connected to the front fender panel 50 via the bracket 30. With these structures, when the vehicle 1 collides, the top plate portion 32a can generate sufficient resistance on the longitudinal wall portion 32b where the collision load is concentrated due to the inertial force of the battery 15. That is, as Figure 8 shown, when a small overlap frontal collision occurs at the right front portion of the vehicle 1 and a moment acts on the battery 15 outward in the vehicle width direction, the side restricting member 32 can reliably limit the displacement amount of the battery 15 moving outward in the vehicle width direction.

[0106] Here, the position of the longitudinal wall portion 32b facing the outer side 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 corresponding to the size of the battery 15 or the like between the longitudinal wall portion 32b and the engaging flange 32c.

[0107] For example, in the case of the side restricting member 32 for the standard battery 15, the engaging flange 32c is formed substantially linearly at the front end of the longitudinal wall portion 32b (refer to Figure 5), in the case of the side restraint member 32 for the large battery 15b, a shelf portion 32d can be interposed between the longitudinal wall portion 32b and the engagement flange 32c (see Figure 6 , Figure 7 ). In this way, by forming the shelf portion 32d between the longitudinal wall portion 32b and the engagement flange 32c as needed, the shape of the side restraint member 32 can be easily optimized according to the size of the battery 15 and the like. Further, by selectively using such a side restraint member 32, the battery fixing structure of the present embodiment can limit the displacement amount of the battery 15 with different sizes and the like moving outward in the vehicle width direction without changing the vehicle body frame of the vehicle body 2 and the like.

[0108] In addition, in the present embodiment, the battery fixing structure having the side restraint member 32 further has a front restraint member 40 that restricts the displacement of the battery 15 in the vehicle body front direction. After the assembly process of the vehicle body 2, the front restraint member 40 is installed at the corner of the battery mounting member 17. Therefore, by only changing the shape of the front restraint member 40 according to the battery 15, the front restraint 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 compartment 3 without changing the vehicle body frame of the vehicle body 2. Further, the front restraint member 40 arranged at a position adjacent to the front surface of the battery 15 can restrict the displacement of the battery 15 in the vehicle body front direction when a collision occurs.

[0109] When a collision occurs in the vehicle 1, such a front restraint member 40 has sufficient resistance to the collision load generated by the inertial force of the battery 15.

[0110] Specifically, the front restraint member 40 is integrally formed by a pair of flat plates 40a. The pair of flat plates 40a form a substantially V-shaped shape in plan view that opens substantially at a right angle to the front surface of the battery 15. Such a pair of flat plates 40a can firmly engage the engagement portions 40b formed continuously therewith in a butting state with the respective front restraint member mounting surfaces 17h. Therefore, the front restraint member 40 can generate sufficient resistance to the collision load generated by the inertial force of the battery 15 when a collision occurs in the vehicle 1 only by engaging with the corner of the battery mounting member 17. That is, as Figure 8 shown, when a small overlap frontal collision occurs in the right front portion of the vehicle 1, the front restraint member 40 can reliably limit the displacement amount of the battery 15 moving in the vehicle body front direction.

[0111] 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 arbitrary cutouts corresponding to the size of the battery 15 and the like on a part of the pair of flat plates 40a.

[0112] For example, in the case of the front restraint member 40 for the standard battery 15, the edges of the pair of flat plates 40a facing the battery 15 can be formed substantially linearly (see Figure 5 ). In the case of the front restraint member 40 for the large battery 15b, an L-shaped cutout can be provided on a part of the edges of the pair of flat plates 40a (see Figure 6 , Figure 7 ). Thus, by providing a cutout on 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 and the like. Also, 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 and the like. Thereby, the battery fixing structure of the present embodiment can limit the displacement amount of the battery 15 with different sizes, etc., from moving forward in the vehicle body without changing the vehicle body frame of the vehicle body 2 and the like.

[0113] In addition, various fixing members (battery braces 25, front rods 26, and rear rods 27) for fixing on the battery mounting member 17 (mounting surface 17b) are arranged on the front surface, upper surface, and rear surface of the battery 15. And the height of the side restraint member 32 (longitudinal wall portion 32b) for the battery 15 fixed by these various fixing members is set higher than the height of the front restraint member 40 (pair of flat plates 40a) for the battery 15. Thereby, for the region on the outer side in the vehicle width direction of the battery 15 where no fixing member is arranged, the side restraint member 32 can improve the limitation of the displacement amount of the battery 15 moving outward in the vehicle width direction. Therefore, even when a small overlap frontal collision occurs at the right front part of the vehicle 1 and a large battery 15b that exerts a strong moment outward in the vehicle width direction at the initial stage of the collision, the battery fixing structure of the present embodiment can reliably limit the detachment of the battery 15.

[0114] The invention described in the above embodiment is not limited to the above manner, and various modifications can be made within the scope not departing from the gist of the present invention at the implementation stage. In addition, the above manner includes inventions at various stages, and various inventions can be extracted by appropriately combining the disclosed multiple constituent elements.

[0115] In addition, even if a part of the constituent elements is deleted from all the constituent elements shown in the above embodiment, as long as the described problems can be solved and the described effects can be obtained, the structure after deleting the constituent elements can also be extracted as an invention.

[0116] Reference Signs

[0117] 1... Vehicle

[0118] 2... Vehicle Body

[0119] 3... Engine Compartment

[0120] 4... Footrest

[0121] 5……Front side frame

[0122] 6……Upper side frame

[0123] 6a……Front bracket

[0124] 6b……Rear bracket

[0125] 7……Side part of radiator support

[0126] 7a……Engagement flange

[0127] 8……Suspension tower

[0128] 9……Wheel apron

[0129] 10……Front fender frame

[0130] 10a……Bracket mounting surface

[0131] 15……Battery

[0132] 15b……Large battery

[0133] 16……Battery tray

[0134] 16b……Large battery tray

[0135] 17……Battery placement part

[0136] 17a……Top plate part

[0137] 17b……Placement surface

[0138] 17c……Front wall part

[0139] 17e……Side wall part

[0140] 17g……Front rod hole

[0141] 17h……Pair of front restraint part mounting surfaces

[0142] 17k……Side restraint part mounting surface

[0143] 20……Rear rod mounting part

[0144] 20a……Rear rod mounting surface

[0145] 21……Rear rod hole

[0146] 25……Battery brace

[0147] 26……Front rod

[0148] 27……Rear rod

[0149] 30……Bracket

[0150] 30a... Bracket engaging flange

[0151] 30b... Flange

[0152] 32... Side restricting member (first restricting member)

[0153] 32a... Top plate portion

[0154] 32b... Longitudinal wall portion

[0155] 32c... Engaging flange

[0156] 32d... Shelf portion

[0157] 40... Front restricting member (second restricting member)

[0158] 40a... Flat plate

[0159] 40b... Joint portion

[0160] 50... Front fender panel

[0161] 50a... Upper flange

[0162] 50b... Front flange.

Claims

1. A battery fixing structure, comprising: A battery mounting member capable of mounting a battery in the engine compartment; 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 limiting member which is integrally provided with the bracket and is disposed at a position opposite to the outer side surface in the vehicle width direction of the battery mounted on the battery mounting member and at which the battery is displaced outward in the vehicle width direction when the vehicle collides; The first limiting member is engaged with the battery mounting member.

2. The battery fixing structure according to claim 1, further comprising: a second limiting member engaged with the battery mounting member, The second restricting member is disposed at a position opposite to a front surface of the battery mounted on the battery mounting member in the front-rear direction of the vehicle body and at a position where the battery is displaced toward the front of the vehicle body when the vehicle collides.

3. The battery fixing structure according to claim 2, in, The height of the first restricting member for the battery placed on the battery placing member is set higher than the height of the second restricting member for the battery.

4. The battery fixing structure according to claim 1, comprising: a fixing member for fixing the battery on the battery mounting member, Wherein, the fixing component comprises: A battery stay arranged in the short side direction of the upper surface of the battery; and A fixing rod is fixed to each of the two ends of the battery stay and has its lower end respectively locked, thereby fixing the battery on the battery mounting component.

Images