JP7484792B2 - Body structure - Google Patents

Description

The present invention relates to a vehicle body structure having, for example, a floor panel.

For example, in the case of an automobile equipped with a driving motor, a battery unit is installed to supply power to the driving motor, and this battery unit has a large capacity to increase the driving range of the driving motor (see, for example, Patent Document 1). In the vehicle body structure of Patent Document 1, the battery unit is installed below a floor panel that extends horizontally from the front to the rear.

The vehicle body structure of Patent Document 2 also includes a floor position adjustment means that can adjust the height of the floor on which the legs of the occupant who operates the pedals rest. Patent Document 2 states that, when the occupant is seated low, the ergonomically comfortable position is generally one in which the angle between the upper leg (from the pelvis to the knee) and the lower leg (from the knee to the ankle) is wide. A floor position adjustment means is provided to optimize this angle.

JP 2019-18686 A JP 2005-178581 A

Regarding the posture of the occupant when operating the pedal, the inventor has found that by placing the heel of the occupant operating the pedal at a higher position than usual and lowering the hip point, the angle between the lower leg and the floor is reduced, improving pedal operability. In other words, pedal operation in a vehicle is an operation of pushing the pedal toward the front of the vehicle, and in most cases the heel is placed on the floor at this time. Therefore, a reaction force from the pedal acts on the sole of the foot, and a reaction force from the floor mainly acts on the heel. The direction of operation of a general pedal is not horizontal but diagonally downward, and the smaller angle between the lower leg and the floor during this pedal operation means that the component of the vertical force input from the heel is smaller. This allows, for example, a change of foot from the accelerator pedal to the brake pedal or vice versa to be performed quickly and accurately, resulting in improved pedal operability.

One possible way to position the heels of the occupant who operates the pedals at a higher position is to provide the floor position adjustment means of Patent Document 2. However, in order to provide the floor position adjustment means of Patent Document 2, a lifting mechanism for raising and lowering the floor, a locking mechanism for locking the floor at the desired height, etc. must be incorporated into the vehicle body, and depending on the vehicle, it may be difficult to secure the space for this. In particular, if an attempt is made to mount a battery unit below the floor panel as in Cited Document 1, the floor position adjustment means of Patent Document 2 gets in the way.

In addition, the battery unit generates heat when charging and discharging. If the battery temperature is not properly managed, it can shorten the battery's lifespan and reduce charging and discharging efficiency, so how to release the heat from the battery is an issue. The heat problem becomes particularly pronounced as the battery capacity increases.

The present invention was made in consideration of these points, and its purpose is to improve pedal operability by raising a portion of the floor panel, while making effective use of the space below the raised floor panel, allowing for the installation of a large-capacity battery and cooling of that battery.

In order to achieve the above object, a first aspect of the present disclosure is premised on a vehicle body structure including a floor panel constituting the floor surface of a vehicle interior in which a front seat is provided, and a driving motor. The vehicle body structure includes a front floor panel on which the heel of a pedal operator who operates pedals provided in the vehicle is placed, a rear floor panel provided behind the front floor panel, and a connection panel extending from the rear of the front floor panel to the front of the rear floor panel. The front floor panel is positioned above the rear floor panel, and a front battery that supplies power to the driving motor is provided below the front floor panel, and a cooling unit that cools the front battery is provided below the connection panel.

With this configuration, the front floor panel on which the pedal operator's heels are placed is positioned higher than the rear floor panel, so the pedal operator's heels are placed in a higher position. This reduces the angle between the pedal operator's lower leg and the front floor panel, reducing the vertical component of force input from the heel when operating the pedal, improving pedal operability.

In addition, by locating the battery below the front floor panel placed above in this way, the space below the front floor panel can be effectively used as space for locating the battery, without leaving it as dead space. This allows a large-capacity battery to be installed.

Furthermore, because the connection panel is a member that extends from the front floor panel to the rear floor panel, a space is also formed below the connection panel. By disposing a cooling section in the space below the connection panel, it is possible to effectively utilize that space. And because the connection panel and the front panel are positioned close to each other in the fore-and-aft direction, the cooling section below the connection panel and the battery below the front floor panel can be placed close to each other. This increases the efficiency of cooling the battery, enabling appropriate temperature management of the battery.

In a second aspect of the present disclosure, a pair of left and right hinge pillars are arranged to extend vertically at both ends of the front floor panel in the vehicle width direction, and the hinge pillars overlap a portion of the front battery in a side view of the vehicle body.

In other words, the hinge pillar is highly rigid because it is a member that supports the door so that it can be opened and closed. In addition, the lower end of the hinge pillar is located near the floor panel. For example, when an impact load acts on the side of the vehicle, the load is transmitted to the vehicle body via the highly rigid hinge pillar. At this time, because the hinge pillar and part of the battery overlap in a side view, the battery can be protected by the hinge pillar and the input load to the battery can be reduced.

In a third aspect of the present disclosure, the cooling section is configured with a first duct for supplying cool air to the front battery, an air conditioning unit is disposed in the vehicle compartment, an upstream portion of a second duct into which at least the cool air generated by the air conditioning unit is introduced is connected to the air conditioning unit, and a downstream portion of the second duct is connected to the cooling section.

According to this configuration, the conditioned air to be supplied to the vehicle interior is generated by the air conditioner, and the temperature of the conditioned air can be set to any temperature within the air conditioner. When air (cold air) that is lower in temperature than the battery is generated by the air conditioner, at least a portion of the cold air is introduced into the first duct by the second duct. The cold air introduced into the first duct is sent to the battery, so that the battery can be cooled reliably.

In a fourth aspect of the present disclosure, the air conditioner is disposed above the front floor panel, and the second duct extends toward the rear of the vehicle along the upper surface of the front floor panel until it reaches the upper surface of the connection panel, and then passes downward through the connection panel to connect to the first duct.

With this configuration, most of the second duct can be placed inside the vehicle interior, allowing for a large space below the front floor panel and a larger battery capacity.

In a fifth aspect of the present disclosure, the front floor panel, the rear floor panel, and the connection panel are provided on the driver's side and the passenger's side of the vehicle, the front battery is disposed below the front floor panel on the driver's side and the floor panel on the passenger's side, respectively, the cooling section is composed of a first duct extending from below the connection panel on the driver's side to below the connection panel on the passenger's side, the air conditioner is disposed above the front floor panel on the passenger's side, and the second duct extends rearward along the upper surface of the front floor panel on the passenger's side until it reaches the upper surface of the connection panel on the passenger's side, and penetrates downward through the connection panel on the passenger's side to be connected to the passenger's side of the first duct.

With this configuration, the onboard capacity can be increased by mounting a battery on both the driver's side and the passenger's side. In this case, the second duct can be connected to the air conditioning unit located on the passenger's side, and this second duct can be located on the passenger's side and connected to the first duct as a cooling unit, so the distance from the air conditioning unit to the first duct can be shortened. In addition, since the first duct extends from the driver's side to the passenger's side, the cool air introduced to the passenger's side of the first duct can be guided to the driver's side. This allows not only the battery on the passenger's side but also the battery on the driver's side to be cooled.

In a sixth aspect of the present disclosure, the connection panel is inclined or curved so that it is positioned lower as it moves toward the rear of the vehicle.

This configuration prevents a large gap from forming between the front and rear floor panels. In this case, the vertical dimension of the space below the connection panel becomes shorter the further rearward it is, making it difficult to use as a space for mounting a battery, but it can be used without any problems as a space for arranging the first duct as a cooling section.

In a seventh aspect of the present disclosure, a vehicle body structure can be assumed that includes a floor panel constituting the floor surface of a vehicle interior in which a front seat is provided, and a driving motor. The floor panel includes a front panel portion on which the heel of a pedal operator who operates pedals provided in the vehicle is placed, a rear panel portion provided behind the front panel portion, and a connection panel portion extending from the rear of the front panel portion to the front of the rear panel portion. The front panel portion is positioned above the rear panel portion, and a front battery that supplies power to the driving motor is provided below the front panel portion, and a cooling portion that cools the front battery is provided below the connection panel portion.

This configuration allows the floor panel to be integrated from the front to the rear, and provides the same effects as the first aspect described above.

As explained above, the angle between the pedal operator's lower leg and the floor panel is reduced, improving pedal operability, while the space below the floor panel can be effectively utilized to mount a large-capacity battery and efficiently cool the battery.

1 is a side view of an automobile according to an embodiment of the present invention. FIG. 1 is a partial cross-section of an automobile dash panel and floor panel showing the location of a brake pedal. 4 is a cross-sectional view in the vehicle width direction showing an example of the structure of a floor panel. 2 is a perspective view of the front portion of the vehicle interior as seen from the rear. FIG. FIG. 1 is a partial cross-section of an automobile dash panel and floor panel showing the location of an accelerator pedal. 1 is a cross-sectional view in the front-rear direction showing an example of the structure of a floor panel. FIG. 13 is a diagram illustrating a pedal operation. FIG. 8 is a view corresponding to FIG. 7 according to a first modified example of the embodiment. FIG. 7 is a view corresponding to FIG. 6 according to a second modified example of the embodiment.

The following describes in detail an embodiment of the present invention with reference to the drawings. Note that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its applications, or its uses.

Figure 1 is a left side view of an automobile 1 according to an embodiment of the present invention. The automobile 1 is a passenger automobile. In the description of this embodiment, the front side of the vehicle is simply referred to as the "front", the rear side of the vehicle is simply referred to as the "rear", the right side of the vehicle is simply referred to as the "right", and the left side of the vehicle is simply referred to as the "left". The left-right direction of the vehicle is the vehicle width direction.

A power room S is provided at the front of the automobile 1. The power room S houses a power train (not shown) consisting of a driving motor M and the like. Therefore, the power room S can also be called, for example, a power train storage room or a motor room. The automobile 1 may be an electric automobile or a hybrid automobile (including a plug-in hybrid automobile). If the automobile 1 is an electric automobile, the driving motor M is mounted in the power room S. If the automobile 1 is a hybrid automobile, the driving motor M and an internal combustion engine (not shown) are mounted in the power room S. Also, although not shown, the driving motor may be mounted at the rear of the automobile 1, or may be an in-wheel motor mounted inside the wheels.

A bonnet hood 2 is provided on top of the power chamber S. The automobile 1 may be a front-engine, rear-drive vehicle (hereinafter referred to as an FR vehicle) in which the rear wheels are driven by an engine and a driving motor M mounted in the power chamber S, or a front-engine, front-drive vehicle (hereinafter referred to as an FF vehicle) in which the front wheels are driven by an engine and a driving motor M mounted in the power chamber S. In addition to FR and FF vehicles, the automobile may also be a four-wheel drive vehicle that drives all four wheels.

As shown in FIG. 2, the automobile 1 has a passenger compartment R behind the power compartment S. The bottom of the passenger compartment R is made up of a floor panel 3, and therefore the space above the floor panel 3 forms the passenger compartment R. A roof 4 is provided on the upper part of the passenger compartment R. Also, as shown in FIG. 1, a front door 5 and a rear door 6 are arranged on the left side of the automobile 1 so as to be able to be opened and closed. Although not shown, a front door and a rear door are also arranged on the right side of the automobile 1 so as to be able to be opened and closed.

As shown in FIG. 2, the automobile 1 is equipped with a vehicle body structure 1A according to the present invention. The vehicle body structure 1A is equipped with a floor panel 3 and a dash panel 7, but the dash panel 7 may be a member that does not constitute the vehicle body structure 1A according to the present invention. The dash panel 7 is a member that separates the passenger compartment R and the power compartment S in the front-rear direction. The dash panel 7 is made of, for example, a steel plate, and extends in the left-right direction as well as the up-down direction. The lower portion of the dash panel 7 is inclined or curved so that it is positioned further rearward as it approaches the lower end, and the lower end of the dash panel 7 is connected to the front end of the floor panel 3. Therefore, the floor panel 3 is provided so as to extend rearward from the lower end of the dash panel 7.

In this embodiment, the right side of the passenger compartment R is the driver's seat side, and the left side of the passenger compartment R is the passenger's seat side. FIG. 2 is a cross-section of the driver's seat side of the automobile 1, showing cross-sections of the floor panel 3 and dash panel 7, and a schematic structure of the driver's seat 8 and rear seat 10 attached to the floor panel 3, and the brake pedal B attached to the dash panel 7. The driver's seat 8 is provided to the right of the center in the left-right direction of the passenger compartment R, while a passenger seat 9 (shown in FIG. 1) is provided to the left of the center in the left-right direction of the passenger compartment R. However, this is not limited to this, and the left side of the passenger compartment R may be the driver's seat side, and the right side of the passenger compartment R may be the passenger's seat side. In addition, the passenger compartment R may have two or more rows of rear seats.

To explain the body structure 1A of the automobile 1 in more detail, as shown by the dashed lines in FIG. 1, the left and right sides of the automobile 1 are provided with a front door opening 40 opened and closed by the front door 5, and a rear door opening 41 opened and closed by the rear door 6. As shown in FIGS. 2 to 4, the body structure 1A has a pair of left and right side sills 42 arranged to extend in the front-rear direction at both left and right ends of the floor panel 3. The body structure 1A also has a pair of left and right hinge pillars 43 arranged to extend in the up-down direction at both left and right ends of the front floor panel 30 that constitutes the front part of the floor panel 3. The lower part of the hinge pillar 43 is connected to the front vicinity of the side sill 42, and the hinge pillar 43 extends upward from there. The lower part of the front pillar 44 is connected to the upper part of the hinge pillar 43. As shown in FIG. 1, the front pillar 44 extends while inclining so as to be positioned further rearward as it goes upward, and is connected to the front part of the roof 4. Furthermore, the vehicle body structure 1A includes a center pillar 45 that extends upward from the middle of the side sill 42 in the fore-and-aft direction. The front door opening 40 is formed by the rear edge of the hinge pillar 43, the lower edge of the front pillar 44, the upper edge of the side sill 42, the front edge of the center pillar 45, and the roof 4. The front door 5 is supported by the hinge pillar 43, and the rear door 6 is supported by the center pillar 45. Note that the rear door 6 may be omitted, in which case the rear door opening 41 is also omitted.

As shown in FIG. 2, a brake pedal B is provided on the dash panel 7 so as to be able to swing freely. That is, a pedal bracket 11 is attached to the right side of the dash panel 7, facing the driver's seat 8, inside the passenger compartment R. The pedal bracket 11 is provided above and spaced apart from the upper surface of the floor panel 3. The pedal bracket 11 is provided with a support shaft 11a extending in the left-right direction. The upper end of the brake pedal B is supported by this support shaft 11a.

The brake pedal B extends downward from the portion supported by the support shaft 11a. The lower end of the brake pedal B is the portion that is depressed by the occupant. The rear end of the rod B1 is connected to the brake pedal B. The front end of the rod B1 is connected to the input portion of the brake booster 12. The front end of the rod B1 may be connected to a braking force generating device other than the brake booster 12.

The support structure of the brake pedal B is not limited to the above-mentioned structure, and may be a so-called organ pedal type brake pedal, not shown. In this case, the lower part of the brake pedal is supported so as to be able to swing freely relative to the floor panel 3 via a support shaft extending in the left-right direction.

Figure 5 is a cross-sectional view of the dash panel 7 and floor panel 3 showing the position of accelerator pedal A. Accelerator pedal A is a so-called organ pedal type, and the lower part of the accelerator pedal A is supported so as to be able to swing freely against the floor panel 3 via a support shaft A1 extending in the left-right direction. Although not shown, accelerator pedal A may be of a hanging type. In this case, the upper part of accelerator pedal A is supported so as to be able to swing freely against the dash panel 7 via a support shaft extending in the left-right direction. Automobiles 1 that run on a driving motor M also have a pedal that is operated when accelerating, and in this specification, this pedal is also referred to as an accelerator pedal.

Although not shown, if the vehicle is equipped with a manual transmission in which the occupant changes the gear ratio using an operating lever (not shown) provided in the passenger compartment R, a pedal for operating the clutch is provided in the passenger compartment R. Normally, the accelerator pedal A is located at the far right, the brake pedal B is located to the left of the accelerator pedal A, and the clutch pedal is located to the left of the brake pedal B.

Although not shown, for example, in a driving school car used for driving lessons, an accelerator pedal and a brake pedal are provided on the passenger side as well as on the driver's side. The present invention can also be applied to such a driving school car.

(Floor panel configuration)
6, the floor panel 3 includes a front floor panel 30, a seat mounting floor panel 34, and a connection panel 35 (details of which will be described later). The front floor panel 30, the seat mounting floor panel 34, and the connection panel 35 are provided not only on the driver's seat side, but also on the passenger's seat side. For example, the front floor panel 30, the seat mounting floor panel 34, and the connection panel 35 may be continuous from the driver's seat side to the passenger's seat side, or may be made of separate members on the driver's seat side and the passenger's seat side.

The front floor panel 30, the seat-mounting floor panel 34 and the connection panel 35 are made of separate members and are joined together to form a single floor panel 3. Furthermore, the seat-mounting floor panel 34 includes a first floor panel (rear floor panel) 31 that forms the front portion of the seat-mounting floor panel 34, and a second floor panel 32 that forms the rear portion of the seat-mounting floor panel 34. The first floor panel 31 and the second floor panel 32 are made of separate members and are joined together to form the seat-mounting floor panel 34.

3 and 4, a floor tunnel portion 30c may be formed in the front floor panel 30, the connection panel 35, and the first floor panel 31. The floor tunnel portion 30c can be formed by bulging upward the left-right central portion (the portion between the driver's seat and the passenger seat) of the front floor panel 30, the connection panel 35, and the first floor panel 31, and can be shaped to extend continuously in the front-rear direction from the front of the front floor panel 30 to the rear of the first floor panel 31, for example.

As shown in FIG. 2, the front floor panel 30 extends rearward from the lower end of the dash panel 7 and also extends in the left-right direction. As shown in FIG. 6, the front floor panel 30 is provided with a heel rest 30a on which the heel of a pedal operator who operates the brake pedal B and the accelerator pedal A is placed. The heel rest 30a is a portion on which the occupant's heel naturally rests when operating the accelerator pedal A or the brake pedal B, and although it varies somewhat depending on the occupant's physique and driving posture, it is generally within the range (area) shown in FIG. 6. In other words, the heel rest 30a can be defined as a continuous area from a portion of the front floor panel 30 that is rearwardly spaced from the front end to a portion of the front floor panel 30 that is forwardly spaced from the rear end, and can also be called the middle portion of the front floor panel 30 in the front-rear direction.

As shown in FIG. 2, the second floor panel 32 is disposed rearward away from the front floor panel 30 and is a member to which the rear seat 10 is attached. The rear seat 10 includes a rear seat cushion portion 10a that forms the seat surface and a rear seat back portion 10b that forms the backrest portion. The rear seat cushion portion 10a is fixed to the upper surface of the second floor panel 32.

The second floor panel 32 is continuous at least from the portion corresponding to the front end of the rear seat cushion portion 10a to the portion corresponding to the rear end, but may be extended rearward beyond the rear end of the rear seat cushion portion 10a. In this case, it is possible to install a second row of rear seats behind the rear seat 10, or to provide a luggage compartment for storing luggage.

The first floor panel 31 extends from the rear of the connection panel 35 to the front of the second floor panel 32. The first floor panel 31 is positioned lower than the front floor panel 30. For example, the front floor panel 30 can extend approximately horizontally in the front-to-rear direction, and the first floor panel 31 can also extend approximately horizontally in the front-to-rear direction.

The second floor panel 32 can also be shaped to extend approximately horizontally in the front-to-rear direction. The second floor panel 32 is positioned higher than the first floor panel 31. This provides the floor panel 3 with a rear plate portion 3B that extends vertically from the front of the second floor panel 32 to the rear of the first floor panel 31. Since the second floor panel 32 and the first floor panel 31 are connected via the rear plate portion 3B, a step is formed between the second floor panel 32 and the first floor panel 31.

With the above configuration, the first floor panel 31 is positioned one step lower than the front floor panel 30 and the second floor panel 32. The difference in height between the front floor panel 30 and the second floor panel 32 and the first floor panel 31 can be set to, for example, 5 cm or more, 10 cm or more, or may be set to 15 cm or more. The front floor panel 30 and the second floor panel 32 may be at the same height, or the front floor panel 30 may be lower or higher than the second floor panel 32. In addition, the front floor panel 30, the first floor panel 31, and the second floor panel 32 do not have to be strictly horizontal, and may be inclined so that the further rearward they are, the lower they are. In addition, only a part of the front floor panel 30, the first floor panel 31, and the second floor panel 32 may be inclined, and the other parts may be approximately horizontal. Furthermore, the second floor panel 32 may be at the same height as the first floor panel 31.

The rear plate portion 3B may be integrally molded with the second floor panel 32, may be integrally molded with the first floor panel 31, or may be molded separately from these floor panels 31, 32. The rear plate portion 3B may extend substantially vertically, or may be inclined or curved. For example, the rear plate portion 3B may be inclined or curved so that it is positioned further forward as it goes downward.

As shown in FIG. 2, the first floor panel 31 is provided with a first front seat fixing portion (front seat fixing portion) 31a and a second front seat fixing portion (rear seat fixing portion) 31b for fixing the front seat 8. The first front seat fixing portion 31a is provided in front of the center of the first floor panel 31 in the front-rear direction, and is composed of, for example, a member elongated in the left-right direction fixed to the first floor panel 31. Similarly, the second front seat fixing portion 31b is composed of a member elongated in the left-right direction, and is provided a predetermined distance rearward from the first front seat fixing portion 31a. The configuration of the first front seat fixing portion 31a and the second front seat fixing portion 31b is not limited to a member, and various shapes made of plate material or the like can be used. In this embodiment, the first front seat fixing portion 31a is formed higher than the second front seat fixing portion 31b, but the heights of the first front seat fixing portion 31a and the second front seat fixing portion 31b may be the same.

At least the front part of the second floor panel 32 is provided with a rear seat fixing part 32a for fixing the rear seat 10. This rear seat fixing part 32a may be configured similarly to the front seat fixing parts 31a, 31b, or may have a different structure. When the second floor panel 32 and the first floor panel 31 are arranged at the same height, the front seat 8 and the rear seat 10 can be arranged at the same height.

(Front seats)
The front seat 8 includes a front seat cushion portion 8a, a front seat back portion 8b, and a seat slide mechanism 8c that adjusts the position of the front seat cushion portion 8a in the front-rear direction. The front seat cushion portion 8a is a portion that constitutes the seat surface of the front seat passenger, and is composed of, for example, a seat frame provided in the front seat cushion portion 8a, a cushion material supported by the seat frame, a skin material that covers the cushion material, etc., although not shown. The front seat back portion 8b is a portion that constitutes the backrest portion of the front seat passenger, and is composed of a seat frame, a cushion material, a skin material, etc., although not shown.

The lower part of the front seat back part 8b is attached to the rear part of the front seat cushion part 8a via a reclining mechanism 8d. The reclining mechanism 8d is a conventionally known mechanism for setting the front seat back part 8b at a desired inclination angle and fixing it in place.

The seat slide mechanism 8c may be a conventionally known mechanism, and may, for example, include a movable member 8e fixed to the bottom of the front seat cushion portion 8a, and a rail 8f fixed to the first front seat fixing portion 31a and the second front seat fixing portion 31b of the first floor panel 31. The rail 8f is a member for guiding the front seat cushion portion 8a in the front-rear direction, and extends in the front-rear direction. The front part of the rail 8f is fixed to the first front seat fixing portion 31a, and the rear part is fixed to the second front seat fixing portion 31b. Since the first front seat fixing portion 31a is higher than the second front seat fixing portion 31b, the rail 8f is inclined so that it is positioned higher as it moves forward. The rail 8f may be approximately horizontal.

The movable member 8e is a member that can move relative to the rail 8f in the forward/rearward direction while engaged with the rail 8f. The position of the movable member 8e relative to the rail 8f in the forward/rearward direction can be any position within a predetermined range, and the movable member 8e can be locked to the rail 8f at that position. Specifically, the seat slide mechanism 8c is provided with a lock mechanism 8g that can be switched between a locked state in which the movable member 8e is locked to the rail 8f and an unlocked state in which sliding in the forward/rearward direction is permitted. The lock mechanism 8g is provided with an operating lever 8h, and is configured so that the lock can be released by the occupant manually operating the operating lever 8h, which is conventionally well known. For example, the lock mechanism 8g is unlocked by operating the operating lever 8h, which is always biased downward, upward, while the operating lever 8h is moved downward by releasing the hand from the operating lever 8h, and the lock mechanism 8g is locked. The forward/rearward adjustment range of the front seat 8, i.e., the frontmost end position and the rearmost end position, can be set by the seat slide mechanism 8c.

The height of the seat slide mechanism 8c can be set by the height of the first floor panel 31, the height of the first front seat fixing part 31a, and the height of the second front seat fixing part 31b. In this embodiment, the height of the seat slide mechanism 8c is set so that the front floor panel 30 is positioned higher than the seat slide mechanism 8c when compared with the front floor panel 30.

(Rear seat)
The rear seat 10 includes a rear seat cushion portion 10a and a rear seat back portion 10b. The rear seat cushion portion 10a and the rear seat back portion 10b can be configured in the same manner as those of the front seat 8. The rear seat cushion portion 10a is fixed to a rear seat fixing portion 32a of a second floor panel 32. The rear seat 10 may also be provided with a seat sliding mechanism and a reclining mechanism similar to those of the front seat 8.

(Connection panel)
6, the connection panel 35 is a member that connects the front floor panel 30 and the first floor panel 31, and extends continuously from the rear of the front floor panel 30 to the front of the first floor panel 31. In this embodiment, since the front floor panel 30 is positioned higher than the first floor panel 31, the connection panel 35 that connects them has an inclined or curved shape that is positioned lower as it moves toward the rear.

At least the front part of the connection panel 35 is positioned forward of the front part of the front seat 8. In FIG. 6, the front part of the front seat cushion part 8a is shown in phantom lines when the front seat 8 is slid to the front-most position by the seat slide mechanism 8c. The front part of the connection panel 35 is positioned forward of the front part of the front seat cushion part 8a in this position, and therefore, in a plan view, the front part or the front and middle part of the connection panel 35 is visible in front of the front seat cushion part 8a.

In addition, in a side view of the vehicle body, the front of the connection panel 35 is positioned forward of the rear (rear edge) of the hinge pillar 43. In other words, since the rear edge of the hinge pillar 43 is the front edge of the front door opening 40 (shown by the dashed line in FIG. 1), the front of the connection panel 35 is positioned forward of the front edge of the front door opening 40.

The connection panel 35 may be a member that is inclined at the same inclination angle from the rear of the front floor panel 30 to the front of the first floor panel 31, or a portion of the front-to-rear direction may be inclined at a different inclination angle than the other portions. The connection panel 35 may be a member that is curved at the same curvature from the rear of the front floor panel 30 to the front of the first floor panel 31, or a portion of the front-to-rear direction may be curved at a different curvature than the other portions. A portion of the connection panel 35 in the front-to-rear direction may be inclined and the other portions may be curved. Only a portion of the connection panel 35 in the front-to-rear direction may be a horizontal portion that is approximately horizontal, or a portion of the connection panel 35 in the front-to-rear direction may have a step.

In this embodiment, the connection panel 35 has a structure that can be divided into three regions, namely, a front region 35a, a middle region 35b, and a rear region 35c. The front region 35a is located in front of the front part of the front seat cushion part 8a that has slid to the front end position. The front region 35a is the region from the front edge of the connection panel 35 to the middle part in the fore-aft direction, and the rear region 35c is the region from the rear edge of the connection panel 35 to the middle part in the fore-aft direction. The middle region 35b is the region from the rear edge of the front region 35a to the front edge of the rear region 35c. The front region 35a may be omitted and the inclination of the middle region 35b may be extended to the front edge of the connection panel 35, or the rear region 35c may be omitted and the inclination of the middle region 35b may be extended to the rear edge of the connection panel 35.

The front region 35a is made up of a downwardly curved portion that is positioned lower as it approaches the rear, forming a concave portion behind the front floor panel 30. The middle region 35b is made up of an inclined portion that is positioned lower as it approaches the rear. The rear region 35c is made up of an upwardly curved portion that is positioned lower as it approaches the rear, forming a convex portion in front of the first floor panel 31. The front region 35a and the middle region 35b are smoothly continuous. The middle region 35b and the rear region 35c are also smoothly continuous. The middle region 35b may be curved.

Although not shown, an anti-slip portion can be provided on the upper surface of the connection panel 35. The anti-slip portion can be configured, for example, with an uneven surface or made of a material with a high coefficient of friction, such as rubber.

(Air conditioning equipment)
The automobile 1 according to the present embodiment is equipped with an air conditioner 70 as shown in FIG. 4. The air conditioner 70 is disposed in the front of the passenger compartment R, i.e., above the front floor panel 30, and is housed inside an instrument panel (not shown). Thus, the vehicle body structure 1 is equipped with the air conditioner 70. The illustrated air conditioner 70 is a so-called indoor unit, and the outdoor unit (not shown) including a compressor, a condenser, a receiver, and refrigerant piping connecting these components is disposed in the power chamber S or the like. The outdoor unit may also be included in the air conditioner 70, but in this specification, the indoor unit is referred to as the air conditioner 70. The compressor may be driven by the power of an engine or may be driven by an electric motor.

The air conditioning device 70 includes an air conditioning unit main body 71 that generates conditioned air, and an air conditioning air duct 72. Although not shown, the air conditioning unit main body 71 includes a blower fan, a cooling heat exchanger (cooler), and a heating heat exchanger (heater). The blower fan is driven by a motor (not shown) and is configured to take in indoor air or outdoor air into the air conditioning unit main body 71. It is sufficient that the air conditioning device 70 includes at least a cooling heat exchanger.

The cooling heat exchanger and the heating heat exchanger are intended to regulate the temperature of the air blown by the blower fan. Specifically, the cooling heat exchanger receives refrigerant that has been decompressed via an expansion valve, and this cooling heat exchanger can be configured as an evaporator. On the other hand, the heating heat exchanger receives cooling water for cooling the driving motor M, etc., and this heating heat exchanger can be configured as a heater core. The heating heat exchanger may also be configured as a refrigerant condenser.

The air taken in by the blower fan is cooled as it passes through the cooling heat exchanger, generating cool air. The amount of air that passes through the cooling heat exchanger that is sent to the heating heat exchanger is set by an air mix damper (not shown). The air that passes through the heating heat exchanger is heated and becomes warm air, which flows downstream of the air conditioning unit main body 71. Downstream of the air conditioning unit main body 71, the cool air and warm air are mixed to generate conditioned air at the desired temperature.

The air conditioning unit main body 71 is located in front of the passenger seat. By fixing the air conditioning unit main body 71 to the dash panel 7, the air conditioning unit main body 71 can be fixed in a state where it is floating above the floor panel 3.

The air conditioning duct 72 is a member for forming a passageway that circulates the air conditioning generated by the air conditioning unit main body 71 to a desired part of the vehicle interior R. The desired part is, for example, the inner surface of the front windshield, the upper body of the occupant, the feet of the occupant, etc. If the driver's seat is on the left side, the air conditioning unit main body 71 can be placed on the right side.

(Battery)
2, the automobile 1 is equipped with a front battery 50 and a rear battery 60 for supplying power to the driving motor M, but the rear battery 60 is not essential and may be installed as needed. The front battery 50 and the rear battery 60 may be the same size or different sizes.

The front battery 50 is disposed below the front floor panel 30. The front battery 50 includes a large number of cells 50a and a case 50b formed to occupy a wide range from directly below the dash panel 7 to near the rear of the front floor panel 30. As shown in FIG. 3, the case 50b extends from near the right side sill 42 to near the left side sill 42. The large number of cells 50a are accommodated in the case 50b from the front to the rear and from right to left. In other words, the front battery 50 is disposed below the front floor panel 30 on the driver's seat side and the floor panel 30 on the passenger seat side. In addition, a bulge portion 50c is formed at the top of the case 50b so as to bulge toward the floor tunnel portion 30c, and the cells 50a are also accommodated in the bulge portion 50c. The bulge portion 50c may be omitted.

The configuration of the front battery 50 is not limited to the above-mentioned configuration, and may be what is called a battery pack that houses a secondary battery, or what is called a battery unit. Also, a battery housing space may be formed below the front floor panel 30, and cells may be housed in this battery housing space. In this case, the cells become the front battery 50. Also, the type of battery is not particularly limited, and may be, for example, a lithium ion battery, an all-solid-state battery, or another secondary battery. The structure and shape of the case 50b can be changed depending on the type of battery.

The case 50b can be fixed to the front floor panel 30, the side sill 42, the bottom of the dash panel 7, etc. The fixing structure of the case 50b is not particularly limited, but a fixing structure using fastening members such as bolts and screws can be used. This makes it possible to attach and detach the front battery 50, improving the workability during replacement. Battery packs and battery units can also be fixed in the same way.

The height of the underside of the front battery 50 may be approximately the same height as the underside of the first floor panel 31, or may be higher than the underside of the first floor panel 31, so as not to lower the minimum ground clearance of the vehicle 1.

The mounting position of the front battery 50 is set so that the hinge pillar 43 and a portion of the front battery 50 overlap each other in a side view of the vehicle body. Specifically, FIG. 2 shows the rear edge (rear) of the hinge pillar 43 in phantom lines, and the lower side of the rear edge of the hinge pillar 43 overlaps with the front-rear middle portion of the front battery 50 in a side view. The lower end of the hinge pillar 43 also overlaps with at least the upper portion of the front battery 50 in a side view. In particular, in this embodiment, the rear edge of the hinge pillar 43 is located further rearward as it goes downward, so the overlapping range between the hinge pillar 43 and the front battery 50 is wider.

The hinge pillar 43 is highly rigid because it is a member that supports the front door 5 so that it can be opened and closed. The lower end of the hinge pillar 43 is located near the front floor panel 30. For example, when an impact load acts from the side of the automobile 1 (such as during a side collision), the load is transmitted to the vehicle body via the highly rigid hinge pillar 43. At this time, as the hinge pillar 43 and a portion of the front battery 50 overlap in a side view, the front battery 50 can be protected by the hinge pillar 43 and the input load to the front battery 50 can be reduced.

The rear battery 60 can be configured similarly to the front battery 50, and can be configured, for example, to include a cell 60a and a case 60b. The rear battery 60 is disposed below the second floor panel 32.

In this embodiment, the portion of the rear floor panel 31 other than the floor tunnel portion is lower than the front floor panel 30, so a battery is not disposed below the portion of the rear floor panel 31 other than the floor tunnel portion. A battery may be disposed inside the floor tunnel portion of the rear floor panel 31.

(Battery cooling structure)
As shown in Fig. 2, a cooling section 51 for cooling the front battery 50 is disposed below the connection panel 35. In this embodiment, the cooling section 51 is configured as a cold air supply duct (first duct) for supplying cold air to the front battery 50. As shown in Fig. 4, the cooling section 51 is shaped to extend continuously in the left-right direction from below the connection panel 35 on the driver's seat side to below the connection panel 35 on the passenger's seat side, and has a long flow path formed therein in the left-right direction.

As shown in FIG. 6, the connection panel 35 is formed so that it is positioned lower toward the rear, so the shape of the cooling section 51 is set to correspond to this shape. That is, the upper wall portion 51a of the cooling section 51 extends along the lower surface of the connection panel 35, and can be formed to be inclined or curved so that it is positioned lower toward the rear. On the other hand, the lower wall portion 51b of the cooling section 51 can be formed substantially horizontal. Therefore, the vertical dimension of the cooling section 51 becomes shorter toward the rear. In addition, the front portion of the cooling section 51 is connected to the case 50b of the front battery 50, and the flow path inside the cooling section 51 is connected to the internal space of the case 50b. The cooling section 51 and the case 50b may be integrated or may be separate. Also, a part of the case 50b may be the cooling section 51. In addition, an outlet (not shown) for discharging the internal air is formed in the front portion of the case 50b.

As a component constituting part of the cooling structure, as shown in FIG. 4, the vehicle body structure 1A is provided with an intermediate duct (second duct) 52 provided between the air conditioning unit main body 71 and the cooling section 51. The upstream portion 52a of the intermediate duct 52 is connected to the air conditioning unit main body 71 of the air conditioning device 70. At least the cold air generated by the air conditioning unit main body 71 is introduced into the upstream portion 52a of the intermediate duct 52. The upstream portion 52a of the intermediate duct 52 may be integrally molded with the air conditioning unit main body 71.

The air conditioning unit main body 71 may have a dedicated cold air passage that passes through the cooling heat exchanger and bypasses the heating heat exchanger, and the upstream portion 52a of the intermediate duct 52 may be connected to this dedicated cold air passage. Not limited to this, the conditioned air generated by the air conditioning unit main body 71 may be introduced into the upstream portion 52a of the intermediate duct 52. In this case, a means for estimating the temperature of the cell 50a of the front battery 50 may be provided, and cold air that is lower in temperature than the temperature of the cell 50a estimated by this means may be introduced into the upstream portion 52a of the intermediate duct 52. Such setting of the temperature of the conditioned air can be performed by an air mix damper. In addition, although not shown, a damper that opens and closes the intermediate duct 52 may be provided. This damper is controlled by the control unit to open the intermediate duct 52 when the temperature of the cell 50a of the front battery 50 becomes a predetermined value or higher. "Cold air" is air that is lower in temperature than the current temperature of the cell 50a.

The downstream portion 52b of the intermediate duct 52 is connected to the cooling section 51. The downstream portion 52b of the intermediate duct 52 may be integrally molded with the cooling section 51. The route of the intermediate duct 52 is not particularly limited, but in this embodiment, it extends downward from the upstream portion 52a along the dash panel 7, then extends rearward along the upper surface of the front floor panel 30 on the passenger side until it reaches the upper surface of the connection panel 35 on the passenger side, penetrates the connection panel 35 downward, and the downstream portion 52b is connected to the cooling section 51. This makes it possible to shorten the length of the intermediate duct 52. The intermediate portion of the intermediate duct 52 may extend along the inner surface of the passenger compartment R of the side sill 42, or may extend along the left side surface of the floor tunnel portion 30c.

The cold air introduced into the cooling section 51 from the downstream section 52b of the intermediate duct 52 flows through the internal flow path of the cooling section 51 from the passenger seat side to the driver seat side and into the case 50b. The cold air that flows into the case 50b cools the cell 50a and is discharged from an outlet (not shown).

This embodiment is not limited to the above cooling structure, and for example, the cooling unit 51 may be configured with a tube (not shown) through which the refrigerant circulating in the air conditioning device 70 or the like flows. In this case, cold air can be generated by blowing air into the tube, and this cold air can be made to flow into the case 50b. The cooling unit 51 may also include a refrigeration cycle device, and may further include a tube through which the low-temperature refrigerant generated by the refrigeration cycle device flows, a duct through which the cold air generated by heat exchange with the low-temperature refrigerant flows, etc.

(Front seat passenger posture and pedal operation)
7 is a diagram showing the lower legs 100 of a front seat occupant (pedal operator) seated on the front seat 8, the floor panel 3, the dash panel 7, the brake pedal B, and the vicinity thereof. In this embodiment, the fixing parts 31a, 31b of the front seat 8 are positioned below the upper surface of the front floor panel 30, so that the hip point of the pedal operator can be lowered. Lowering the hip point of the pedal operator means that the seating position of the pedal operator is lowered, and as a result, the height of the center of gravity of the vehicle in the riding state is lowered.

The front floor panel 30 on which the pedal operator's heel 101 is placed is positioned higher than the first floor panel 31, so the pedal operator's heel 101 is placed in a higher position than in a typical operating posture. This layout results in the pedal operator's upper leg 102 and lower leg 103 being placed in a widely spread posture. In FIG. 7, reference numeral 200 indicates the center line of the pedal operator's upper leg 102, and reference numeral 201 indicates the center line of the lower leg 103. The difference in height between the front floor panel 30 and the first floor panel 31 is set so that the angle between the center line 200 and the center line 201 (opening angle α between the upper leg 102 and the lower leg 103) is in the range of 125° to 150°.

By setting the height difference in this way, the angle between the lower leg 100 and the front floor panel 30 (angle β between the center line 201 and the front floor panel 30) is reduced, so the vertical component of force input to the heel 101 during pedal operation is reduced, improving the operability of the brake pedal B. To be more specific, when the pedal operator depresses the brake pedal B, the heel 101 applies a diagonally downward force F to the front floor panel 30. If this force F is divided into a vertical force and a horizontal force, they are force F1 and force F2, respectively. As described above, since the angle β is reduced, the vertical component of force F1 input from the heel 101 is reduced. This allows, for example, a change of foot from the brake pedal B to the accelerator pedal A or vice versa to be performed quickly and accurately, improving the operability of the pedals A and B.

(Ease of getting in and out of the front seat)
When a passenger seated in the front seat 8 wants to get off, the front seat 8 can be slid backward by the seat slide mechanism 8c, and when getting on, the passenger can easily get on by sliding the front seat 8 backward in advance. The process of getting off will be described in detail below.

Before disembarking (when driving), the front seat 8 is positioned in the fore-aft direction according to the occupant's build, etc., to achieve a predetermined driving posture as described above. Generally, the front seat 8 is positioned forward of the rearmost position, and in the case of a small occupant, the front seat 8 may be in the frontmost position as shown by the phantom line in FIG. 6. Even if the front seat 8 is in the frontmost position, the front part of the connection panel 35 is positioned forward of the front part of the front seat cushion part 8a, so the occupant can place at least the heel of their foot on the connection panel 35 simply by bending their leg.

With at least the heel of the foot placed on the connection panel 35, the operating lever 8h of the locking mechanism 8g of the front seat 8 is operated upward to release the lock, and when force is applied to stretch the leg, the reaction force causes the front seat 8 to slide backward. At this time, since the connection panel 35 is formed so that it is positioned lower the further rearward, even if force is applied to stretch the leg, the leg is less likely to slide forward, and the front seat 8 can be slid backward reliably and more quickly than with a power seat. The amount of sliding backward may vary depending on the occupant, and the seat may be slid to the rearmost position or just before the rearmost position.

By sliding the front seat 8 backward, the front door opening 40 becomes more accessible to the side of the occupant, and the occupant on the driver's seat moves away from the steering wheel. This allows the occupant to exit the vehicle easily. The passenger seat can also be slid backward in the same way when exiting the vehicle.

In addition, since the front portion of the connection panel 35 is located forward of the rear portion of the hinge pillar 43 in a side view of the vehicle body, the front portion of the connection panel 35 can be positioned to correspond to the front portion of the front door opening 40. This allows the foot space to be expanded to match the front door opening 40, further improving ease of entry and exit.

In addition, because the front region 35a of the connection panel 35 has a concave shape, the heel can be placed on the front region 35a. This makes it difficult for the heel to slip forward when stretching the leg, so the front seat 8 can be easily slid backward.

(Rear seat passenger comfort)
In this embodiment, the habitability of the rear seat passengers can be improved. As shown in Fig. 2, the second floor panel 32 to which the rear seat 10 is attached is positioned higher than the first floor panel 31, so that the passengers in the rear seat 10 sit at a relatively high position and have good visibility. The rear seat passengers place their feet on the first floor panel 31, but because this first floor panel 31 is positioned lower than the second floor panel 32, the foot space of the rear seat passengers is secured to be wide, especially in the vertical direction.

(Effects of the embodiment)
As described above, according to this embodiment, the angle β between the pedal operator's lower leg 103 and the front floor panel 30 is reduced to improve pedal operability, while the space below the front floor panel 30 and the space below the connection panel 35 can be effectively utilized to mount a large-capacity front battery 50 and efficiently cool the battery 50.

In addition, because the seat fixing parts 31a and 31b are provided on the first floor panel 31, which is positioned lower than the front floor panel 30, the hip point of the pedal operator seated on the front seat 8 is lowered. Therefore, the angle β between the lower leg 103 of the pedal operator and the front floor panel 30 can be made sufficiently small.

Other Embodiments
The above-described embodiment is merely illustrative in all respects and should not be construed as limiting. Furthermore, all modifications and variations within the scope of the claims are within the scope of the present invention.

For example, in the first modified embodiment shown in FIG. 8, a recess 30b is formed in the front floor panel 30 in a portion corresponding to the brake pedal B, for placing the heel 101 of the pedal operator. The depth of the recess 30b only needs to be set so as to be able to accommodate at least a portion of the heel of the shoe, and can be, for example, 2 cm or more or 3 cm or more. If the recess 30b is too deep, the operability of the pedal may deteriorate, so the depth can be, for example, 7 cm or less. The width (dimension in the left-right direction) of the recess 30b can be, for example, 5 cm or more or 7 cm or more.

By forming the recess 30b, the heel 101 is less likely to shift left and right, so the foot can be stabilized when rotating the toes left and right around the axis near the heel 101, for example, when stepping on the accelerator pedal A after stepping on the brake pedal B. As a result, the pedal operability can be further improved by the synergistic effect of the advantage of reducing the angle β between the lower leg 103 of the pedal operator and the front floor panel 30 described above.

Also, for example, as in the modified example 2 of the embodiment shown in FIG. 9, the floor panel 3 may be one piece from the front to the rear. Specifically, the floor panel 3 of the modified example 2 includes a front panel portion 300 on which the heel of the pedal operator rests, a seat placement panel portion 340, and a connection panel portion 350. The seat placement panel portion 340 is provided behind the front panel portion 300, and includes at least a first panel portion (rear panel portion) 310 to which the front seat 8 is attached, and a second panel portion 320.

The front part of the connection panel part 350 is positioned forward of the front part of the front seat cushion part 8a, which is slid to the front end position. The front battery 50 is disposed below the front panel part 300, and the cooling part 51 is disposed below the connection panel part 350. The front panel part 300 corresponds to the front floor panel 30, the first panel part 310 corresponds to the first floor panel 31, the second panel part 320 corresponds to the second floor panel 32, and the connection panel part 350 corresponds to the connection panel 35. In this modification 2, the same effect as the above embodiment can be achieved. In addition, the front panel part 300 and the connection panel part 350 may be integrally molded and the first panel part 310 may be a separate body, or the first panel part 310 and the connection panel part 350 may be integrally molded and the front panel part 300 may be a separate body.

As described above, the vehicle body structure according to the present invention can be used, for example, in an automobile equipped with a floor panel.

1A Vehicle body structure 3 Floor panel 8 Front seat 8a Front seat cushion portion 8b Front seat back portion 8c Seat slide mechanism 30 Front floor panel 31 First floor panel (rear floor panel)
31a First front seat fixing portion (front seat fixing portion)
31b Second front seat fixing portion (rear seat fixing portion)
35 Connection panel 42 Side sill 43 Hinge pillar 50 Front battery 51 Cooling section (first duct)
52 Intermediate duct (second duct)
300: Front panel portion 310: First panel portion (rear panel portion)
320 Second panel portion 350 Connection panel portion B Brake pedal R Vehicle interior

Claims (7)

A vehicle body structure for an automobile including a floor panel constituting a floor surface of a vehicle compartment in which a front seat is provided, and a driving motor,
a front floor panel on which the heel of a pedal operator who operates a pedal provided in the automobile is placed;
a rear floor panel provided behind the front floor panel;
a connection panel extending from a vehicle rear portion of the front floor panel to a vehicle front portion of the rear floor panel;
The front floor panel is positioned higher than the rear floor panel,
a front battery that supplies power to the driving motor is disposed below the front floor panel;
A vehicle body structure, wherein a cooling unit that cools the front battery is disposed below the connection panel. The vehicle body structure according to claim 1,
a pair of left and right hinge pillars disposed so as to extend in a vertical direction at both ends of the front floor panel in a vehicle width direction,
A vehicle body structure in which the hinge pillar and a portion of the front battery overlap in a side view of the vehicle body. The vehicle body structure according to claim 1 or 2,
the cooling section is constituted by a first duct for supplying cool air to the front battery,
An air conditioning device is provided in the vehicle compartment,
an upstream portion of a second duct into which at least the cold air generated by the air conditioning device is introduced is connected to the air conditioning device;
A vehicle body structure, wherein a downstream portion of the second duct is connected to the cooling portion. The vehicle body structure according to claim 3,
The air conditioning device is disposed above the front floor panel,
A vehicle body structure in which the second duct extends toward the rear of the vehicle along an upper surface of the front floor panel until it reaches an upper surface of the connection panel, and then penetrates downward through the connection panel to be connected to the first duct. The vehicle body structure according to claim 3 or 4,
the front floor panel, the rear floor panel and the connection panel are provided on a driver's seat side and a passenger's seat side of a vehicle,
The front battery is disposed below the front floor panel on the driver's seat side and the front floor panel on the passenger's seat side,
the cooling section is formed of a first duct extending from below the connection panel on the driver's seat side to below the connection panel on the passenger's seat side,
The air conditioning device is disposed above the front floor panel on the passenger seat side,
A vehicle body structure in which the second duct extends toward the rear of the vehicle along the upper surface of the front floor panel on the passenger side until it reaches the upper surface of the connection panel on the passenger side, and then penetrates downward through the connection panel on the passenger side to be connected to the passenger side of the first duct. The vehicle body structure according to any one of claims 1 to 5,
The vehicle body structure in which the connection panel is inclined or curved so as to be positioned lower toward the rear of the vehicle. A vehicle body structure for an automobile including a floor panel constituting a floor surface of a vehicle compartment in which a front seat is provided, and a driving motor,
The floor panel is
a front panel portion on which the heel of a pedal operator who operates a pedal provided in the automobile is placed;
a rear panel portion provided at a rear side of the front panel portion;
a connection panel portion extending from a vehicle rear portion of the front panel portion to a vehicle front portion of the rear panel portion,
the front panel portion is positioned above the rear panel portion;
a front battery that supplies power to the driving motor is disposed below the front panel portion;
A vehicle body structure, wherein a cooling unit that cools the front battery is disposed below the connection panel portion.

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