WO2013099458A1

WO2013099458A1 - Vehicle

Info

Publication number: WO2013099458A1
Application number: PCT/JP2012/079379
Authority: WO
Inventors: 米田　省吾; 兼司福本; 加納　義宏; 俊夫荒木
Original assignee: トヨタ車体株式会社
Priority date: 2011-12-28
Filing date: 2012-11-13
Publication date: 2013-07-04
Also published as: JP2013136308A

Abstract

A vehicle having a cell pack (2) mounted in a passenger compartment, wherein the cell pack (2) is installed in a bottom space spanning underneath both of two seats (4) aligned in a vehicle width direction via a console (3), the portion of the cell pack (2) located between the seats (4) is surrounded via a gap (5) by a fixing member (1) for fixing the console (3) to a floor surface (6) in the passenger compartment, and the gap (5) is large enough that the fixing member (1) does not press against the cell pack (2) even if the fixing member (1) deforms from being unable to withstand external force borne during a vehicle collision. Because this vehicle does not require specialized components in order to protect the cell pack (2), costs can be minimized, the increase of the vehicle body weight can be suppressed, and as a result, the fuel consumption performance and operational performance of the vehicle can be improved.

Description

vehicle

The present invention relates to a vehicle equipped with a battery pack.

A vehicle having an electric motor as a part of a driving source or the driving source itself, such as a hybrid vehicle, an electric vehicle, or a plug-in hybrid vehicle, is equipped with a battery for supplying electric power to the electric motor (for example, a motor generator or a motor). . As this battery, for example, a secondary battery typified by a nickel-cadmium battery, a nickel-hydrogen battery, a lithium ion battery or the like that can be repeatedly charged and discharged is used.

The secondary battery as described above is constituted by a battery module in which battery cells are stacked, and a battery pack containing the secondary battery and internal components is referred to as a battery pack.

The battery pack tends to increase in size with an increase in required capacity in recent years, and the interior of the vehicle may be selected as one of the mounting locations. In that case, as a space in which the battery pack is mounted, for example, under the driver's seat and the passenger seat or in three or more rows so that the indoor space can be used effectively widely even if the battery pack is mounted indoors. In the equipped vehicle, it was effective to select under the seats in the second and subsequent rows.

Therefore, when the space for installing the battery pack is selected, for example, below the driver's seat and the passenger seat, a vehicle front seat that conventionally surrounds the battery pack with a seat leg and a connecting member assembled in a bowl shape. Has been proposed (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-255892

According to the prior art as described above, the battery pack can be protected from accidental destruction at the time of a collision accident, and in the normal time, damage caused by external force such as stepping and kicking by the passenger is prevented. On the other hand, there is a concern that a dedicated part for enclosing the entire battery pack is required, and that the assembling work is complicated and the cost is increased.

The present invention has been made in consideration of such a situation, and an object thereof is to provide a vehicle that can protect a battery pack without using a dedicated component.

In order to solve the above-mentioned problems, the vehicle of the present invention is a vehicle in which a battery pack is mounted in a vehicle compartment. The vehicle is installed in a lower space extending from one to the other of two seats arranged in parallel in the vehicle width direction via a console. A battery pack is installed, and a portion of the battery pack that faces between the seats is surrounded by a fixing member that fixes the console to a floor surface in the vehicle compartment via a gap. Even if the fixing member is deformed without being resisted, the fixing member has a size that does not press against the battery pack.

Due to this specific matter, even if a large external force is applied at the time of a collision accident or an external force such as stepping or kicking by a passenger is applied, these can be received by the fixing member to protect the battery pack. In addition, even if an external force is applied to the fixing member so that the fixing member cannot resist (a deformation cannot be avoided) in the event of a collision, the fixing member may be deformed toward the battery pack side. Since the gap as described above is provided between them, the battery pack is prevented from being destroyed by the fixing member. Furthermore, unlike the prior art, a dedicated part for protecting the battery pack is unnecessary, so that the assembling work is easy and the cost can be reduced. Further, an increase in the weight of the vehicle body can be suppressed, and as a result, the fuel consumption performance and the motion performance of the vehicle can be improved.

Preferably, the fixing member includes an upper surface covering portion that covers an upper surface of the battery pack, a front surface covering portion that extends from one end of the upper surface covering portion and covers a front surface of the battery pack, and the other end of the upper surface covering portion. And a rear surface covering portion that covers the rear surface of the battery pack, and the front surface covering portion and the rear surface covering portion include a front end portion that is bent along the floor surface. The front end portions are fixed to the floor surface, and the front end portions are fixed, the upper surface and the upper surface covering portion, the front surface and the front surface covering portion, and the rear surface. The battery pack is surrounded by the fixing member via the gap between the battery pack and the rear surface covering portion.

In this case, since the fixing member is a simple belt-like member, the cost is further reduced and the increase in the weight of the vehicle body can be further suppressed.

Preferably, the fixing member includes a rib protruding in the thickness direction so as to be connected to the front surface covering portion, the upper surface covering portion, and the rear surface covering portion.

In this case, since the fixing member includes ribs protruding in the thickness direction continuously to the front surface covering portion, the upper surface covering portion, and the rear surface covering portion, the rigidity of the fixing member is increased and a load is received. The bending of the fixing member generated in the above is reduced, and the possibility that the fixing member buckles is also reduced.

More preferably, the battery pack is mounted so that a center portion thereof is positioned at the center in the vehicle width direction of the vehicle, and is formed to have a width capable of providing a blower or a battery junction block on both sides in the vehicle width direction.

In this case, the battery pack is mounted so that the center portion thereof is positioned at the center in the vehicle width direction of the vehicle, and there are spaces in which the blower or the battery junction block is arranged on both sides of the battery pack in the vehicle width direction. Therefore, the battery pack does not have a risk of receiving a direct impact from the side when a side collision occurs.

More preferably, the vehicle is provided with a screw hole in the upper surface covering portion, and the console is fixed to the fixing member with a screw screwed into the screw hole.

In this case, since the console is fixed to the fixing member with screws, the console can be freely attached and detached.

According to the present invention, a vehicle capable of protecting a battery pack with a simple configuration can be provided.

It is a perspective view which shows one Embodiment of the battery pack and fixing member in the vehicle which concerns on this invention. It is a fragmentary perspective view which shows an example of the vehicle interior which attached the battery pack in the vehicle which concerns on this invention. The imaginary line represents the console. FIG. 3 is an enlarged partial perspective view of a portion between seats in FIG. 2. It is a schematic sectional drawing which follows the IV-IV line in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

FIG. 1 is a perspective view showing an embodiment of a battery pack and a fixing member in a vehicle according to the present invention. FIG. 2 is a partial perspective view showing an example of a vehicle compartment in which a battery pack is attached in the vehicle according to the present invention. FIG. 3 is an enlarged partial perspective view of a portion between seats in FIG. 4 is a schematic cross-sectional view taken along line IV-IV in FIG.

As shown in FIG. 2, the vehicle according to the present invention is a vehicle in which a battery pack 2 is mounted in a vehicle compartment, and one of two seats 4 arranged side by side in the vehicle width direction via a console 3 to the other. The battery pack 2 is installed in the lower space over the vehicle, and the portion of the battery pack 2 that faces the seat 4 is surrounded by the fixing member 1 that fixes the console 3 to the floor surface 6 in the vehicle compartment via the gap 5. is there.

The battery pack 2 is constituted by a battery module in which battery cells are stacked, for example, a secondary battery 2a typified by a nickel-cadmium battery, a nickel-hydrogen battery, a lithium ion battery, etc. that can be repeatedly charged and discharged, and other systems. An internal component 2b such as a main relay is accommodated. As shown in FIG. 1, a blower 40 is provided on one side of the battery pack 2 in the vehicle width direction, and a battery junction block 41 is provided on the other side. The battery pack 2 has a blower 40 or a battery junction on both sides in the vehicle width direction. The width of the block 41 can be provided. The battery pack 2 is mounted such that its central portion is positioned at the center in the vehicle width direction of the vehicle, and this central portion faces the seat 4.

The console 3 is provided between the seats 4 as a decorative material for closing the space between the seats 4 and as a storage box. As shown in FIG. 3, the console 3 includes a storage portion 9 having an opening on the upper surface, and front and rear leg portions 10 extending downward from the front and rear of the storage portion 9. The storage portion 9 covers the upper surface of the portion facing the seat 4 of the battery pack 2, and each leg portion 10 covers the front and rear surfaces of the portion facing the seat 4 of the battery pack 2 in the vehicle front-rear direction. . The console 3 thus configured is fixed to the floor surface 6 in the vehicle compartment via the fixing member 1 as will be described later.

Two seats 4 are juxtaposed in the vehicle width direction via the console 3. Each seat 4 is provided on a seat leg 11 erected on the floor surface 6 via a slide mechanism (not shown). Each seat 4 is arranged at a predetermined height from the floor surface 6 by the seat leg 11, whereby a space extending from one to the other is provided below the both seats 4, and the battery pack 2 is placed in this space. Installed.

The fixing member 1 fixes the console 3 to the vehicle floor 6 and protects the battery pack 2. As shown in FIGS. 1 and 4, the fixing member 1 includes a plate-like upper surface covering portion 21 that covers the upper surface of the battery pack 2, and extends vertically from one end of the upper surface covering portion 21. A plate-like front surface covering portion 22 covering the front surface, and a plate-shaped rear surface covering portion 23 extending from the other end of the upper surface covering portion 21 in the same direction as the front surface covering portion 22 and covering the rear surface of the battery pack 2. A belt-shaped member provided.

For example, in order to increase the rigidity against an external force at the time of a collision accident, the fixing member 1 is provided with ribs 24 protruding in the thickness direction on the front covering portion 22, the upper covering portion 21, and the rear covering portion 23 as shown in FIG. It has a series.

A screw hole 8 is provided in the rib 24 portion of the upper surface covering portion 21, and the console 3 is fixed on the fixing member 1 by a screw, for example, a bolt 30, screwed into the screw hole 8 (see FIG. 3).

The end portion of the front surface covering portion 22 (rear surface covering portion 23) is notched so that it is divided into two forks, and two front end portions 7 are formed. Each front end portion 7 is bent in a direction perpendicular to the front covering portion 22 (rear surface covering portion 23) along the floor surface 6 and grounded to the floor surface 6. It is fixed to the floor surface 6 by, for example, bolts 31 through the holes 12.

With the tip 7 fixed to the floor surface 6, between the upper surface and the upper surface covering portion 21, between the front surface and the front surface covering portion 22, and between the rear surface and the rear surface covering portion 23. The battery pack 2 is surrounded by the fixing member 1 through the gap 5.

Since the battery pack 2 is surrounded by the fixing member 1 in this way, there is no possibility that the battery pack 2 is stepped on or kicked off by a passenger during use of the vehicle, and the battery pack 2 is damaged. This can be prevented.

The battery pack 2 is mounted so that the center portion thereof is positioned at the center in the vehicle width direction of the vehicle, and there is a space where the blower 40 or the battery junction block 41 is disposed on both sides of the battery pack 2 in the vehicle width direction. The battery pack 2 does not have a possibility of receiving a direct impact from the side when a side collision occurs.

A gap 5 is interposed between the battery pack 2 and the fixing member 1, and the gap 5 is not able to resist the external force received during a vehicle collision and the fixing member 1 is pressed against the battery pack 2 even if the fixing member 1 is deformed. The size is not enough. By providing such a gap 5 between the battery pack 2 and the fixing member 1, for example, the seat 4 falls to the inside of the vehicle and is pushed from above the fixing member 1 due to a side collision. Even if this happens, the battery pack 2 can be prevented from being destroyed.

As described above, since the vehicle according to the present invention protects the battery pack 2 with the fixing member 1 that fixes the console 3, it does not require a dedicated part for protecting the battery pack 2, and costs Can be suppressed. Further, the increase in the vehicle weight can be suppressed correspondingly, and as a result, the fuel efficiency performance and the motion performance of the vehicle can be improved.

In the above-described embodiment, both the front end portion 7 of the front surface covering portion 22 and the front end portion 7 of the rear surface covering portion 23 are connected to the floor surface 6 by, for example, bolts 31 through the connection holes 12 formed in the front end portion 7. For example, the front end portion 7 of the front surface covering portion 22 is fixed by being fitted into a locking portion provided on the floor surface 6, and the front end portion 7 of the rear surface covering portion 23 is fixed. Further, it may be fixed to the floor surface 6 by, for example, a bolt 31 through the connecting hole 12 formed in the tip portion 7 of the rear surface covering portion 23. In this example, the front covering portion 22 and the rear covering portion 23 may be interchanged with each other. In these cases, the assembly work of the fixing member 1 is further facilitated.

Moreover, each front-end | tip part 7 may be fixed to the floor surface 6 by welding.

The battery pack 2 is mounted such that its central portion is positioned at the center in the vehicle width direction of the vehicle. However, the battery pack 2 does not have to be strictly positioned at the center in the vehicle width direction. Or if the battery junction block 41 can be provided, the center part of the battery pack 2 may be located in the vicinity of the vehicle width direction center of a vehicle. Even in this case, there is a space where the blower 40 or the battery junction block 41 is disposed on both sides of the battery pack 2 in the vehicle width direction. There is no risk of receiving it.

The present invention is industrially useful because a battery pack can be protected with a simple configuration in a vehicle in which a large-sized battery pack is mounted indoors.

DESCRIPTION OF SYMBOLS 1 Fixing member 2 Battery pack 3 Console 4 Seat 5 Gap 6 Floor surface 7 Tip part 8 Screw hole 21 Upper surface coating part 22 Front surface coating part 23 Rear surface coating part 24 Rib 30 Screw (bolt)
40 Blower 41 Battery Junction Block

Claims

In vehicles equipped with battery packs in the vehicle compartment,
The battery pack is installed in a lower space extending from one to the other of two seats arranged side by side in the vehicle width direction via a console, and a portion of the battery pack that faces between the seats places the console in the vehicle compartment. The gap is surrounded by a fixing member that is fixed to the floor surface, and the gap is such that the fixing member does not press against the battery pack even if the fixing member is deformed without resisting an external force that is received during a vehicle collision. A vehicle characterized by its size.
The vehicle according to claim 1,
The fixing member extends from an upper surface covering portion that covers the upper surface of the battery pack, one end of the upper surface covering portion, extends from the other end of the upper surface covering portion, and covers a front surface covering portion that covers the front surface of the battery pack. A rear surface covering portion covering the rear surface of the battery pack;
A belt-shaped member comprising
The front covering portion and the rear covering portion are provided with a tip portion bent along the floor surface,
Each tip is fixed to the floor surface,
With the tip portion fixed, the gap is interposed between the upper surface and the upper surface covering portion, between the front surface and the front surface covering portion, and between the rear surface and the rear surface covering portion. The battery pack is surrounded by the fixing member.
The vehicle according to claim 2, wherein
The vehicle, wherein the fixing member includes a rib projecting in a thickness direction so as to continue to the front surface covering portion, the upper surface covering portion, and the rear surface covering portion.
In the vehicle according to any one of claims 1 to 3,
The vehicle is characterized in that the battery pack is mounted so that a center portion thereof is positioned at a center in the vehicle width direction of the vehicle, and is formed to have a width capable of providing a blower or a battery junction block on both sides in the vehicle width direction.
In the vehicle according to any one of claims 2 to 4,
The upper surface covering portion is provided with a screw hole,
The vehicle, wherein the console is fixed to the fixing member with a screw screwed into the screw hole.