JP7367337B2 - Lower body structure of electric vehicle - Google Patents

Description

The present invention relates to a lower body structure of an electric vehicle that is not provided with an exhaust pipe below a floor panel of the vehicle, for example.

BACKGROUND OF THE INVENTION Recently, an increasing number of electric vehicles use the output of a rotating electric machine as driving force instead of an internal combustion engine that uses gasoline or the like as fuel. In such an electric vehicle, an on-vehicle battery that supplies power to a rotating electrical machine is disposed, for example, below the vehicle on a floor panel that forms the floor surface of the vehicle interior (see Patent Document 1 and Patent Document 2).

By the way, in Patent Document 1, a floor cross member that is disposed on the upper surface of a floor panel and connects left and right side sills in the vehicle width direction is arranged across a tunnel portion provided approximately at the center of the floor panel in the vehicle width direction. A vehicle body structure provided therein is disclosed.
On the other hand, Patent Document 2 discloses that a floor cross member is disposed on the upper surface of the floor panel and connects the left and right side sills in the vehicle width direction so as to straddle a tunnel portion provided approximately at the center of the floor panel in the vehicle width direction. A vehicle body structure provided therein is disclosed.

As described above, in Patent Document 1 and Patent Document 2, a tunnel portion is formed approximately at the center of the floor panel in the vehicle width direction, protruding upward from the vehicle and extending in the longitudinal direction of the vehicle.
Conventionally, such a tunnel section of the floor panel was used as a space for arranging an exhaust pipe that exhausts exhaust gas generated by the internal combustion engine out of the vehicle from the rear of the vehicle, so it was unnecessary for electric vehicles that do not require an exhaust pipe. .

Furthermore, in electric vehicles that do not require exhaust pipes, eliminating the need for tunnels can be expected to reduce the weight of the vehicle and expand the space under the occupant's feet, that is, the space for the occupant's feet.
Therefore, for electric vehicles that do not require an exhaust pipe, consideration is being given to eliminating the need for a tunnel section as a space for arranging the exhaust pipe and configuring the cabin floor surface with a relatively flat floor panel and floor cross member. .

However, since the conventional tunnel section also functioned as a transmission member that transmits the collision load from the front of the vehicle to the rear of the vehicle, if the tunnel section of the floor panel is eliminated, it is necessary to ensure the desired frontal collision performance. Therefore, it was necessary to provide a load transmission path in place of the tunnel section to transmit the collision load from the front of the vehicle to the rear of the vehicle.

Furthermore, since the conventional tunnel part also functioned as a support part that supported the center console, if the tunnel part of the floor panel was made unnecessary, it was necessary to separately provide a support member to support the center console.
On the other hand, if the desired frontal collision performance and support structure for the center console were to be achieved with a structure similar to the tunnel section, there was a risk that the weight reduction effect of eliminating the tunnel section would not be achieved.

International Publication No. 2012/063393 Japanese Patent Application Publication No. 2013-147137

In view of the above-mentioned problems, an object of the present invention is to provide a lower body structure for an electric vehicle that can suppress weight increase, ensure desired frontal collision performance, and reduce the weight of the center console support structure. do.

The present invention relates to a lower body structure of an electric vehicle that uses the output of a rotating electric machine as a driving force, and includes: a pair of left and right side sills extending in the longitudinal direction of the vehicle; a substantially flat floor panel disposed between the side sills; a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated and connecting the left and right side sills in the vehicle width direction; a second floor cross member that is disposed on the upper surface of the floor panel and connects the left and right side sills in the vehicle width direction; and a kick-up part that is stepped upward from the rear end of the floor panel. , the front part is connected to the vehicle body on the front side of the vehicle, the rear part is connected to the kick-up part, and a console support bracket supports a center console, and the console support bracket has a longitudinal section along the vehicle width direction. The bracket side wall portion of the console support bracket is formed into a substantially portal-shaped cross section, including a pair of left and right bracket side wall portions that face each other in the vehicle width direction, and a bracket upper surface portion that connects the upper ends of the bracket side wall portions. is characterized in that it includes a flange portion extending outward in the vehicle width direction from its lower end, and the flange portion of the console support bracket is fastened and fixed to the first floor cross member and the second floor cross member. do.
The above-mentioned substantially flat floor panel refers to a floor panel that is not provided with a tunnel portion that projects upwardly of the vehicle and extends in the longitudinal direction of the vehicle.

According to the present invention, it is possible to suppress an increase in weight and ensure desired frontal collision performance, and it is also possible to reduce the weight of the support structure of the center console.
Specifically, console support brackets extending in the longitudinal direction of the vehicle are fixed to the first floor cross member and the second floor cross member that connect the left and right side sills in the vehicle width direction. The collision load acting on the first floor cross member and the second floor cross member from the side of the vehicle can be distributed and transmitted in the longitudinal direction of the vehicle via the console support bracket.

Furthermore, since the front part of the console support bracket is connected to the vehicle body on the front side of the vehicle, and the rear part of the console support bracket is connected to the kick-up part, the lower body structure of the electric vehicle can absorb the collision load from the front of the vehicle. It can be transmitted to the rear of the vehicle via the console support bracket.

At this time, the lower body structure of the electric vehicle can disperse and transmit the collision load from the front of the vehicle via the first floor cross member and the second floor cross member.
Thereby, the lower body structure of the electric vehicle can ensure the rigidity of the floor surface of the vehicle compartment against a collision load from the side of the vehicle and a collision load from the front of the vehicle.

In addition, by fixing the lower part of the console support bracket to the first floor cross member and the second floor cross member, the lower body structure of the electric vehicle can reduce the length of the console support bracket in the vehicle vertical direction from the console support bracket. The support bracket can be made shorter than when it is fixed to the floor panel.

For this reason, for example, even if the length of the tunnel part in the longitudinal direction of the vehicle when a tunnel part is provided in the floor tunnel and the length of the console support bracket in the longitudinal direction of the vehicle are approximately the same, the lower body structure of the electric vehicle , the weight of the console support bracket can be reduced by the length of the vehicle in the vertical direction.
Therefore, the lower body structure of the electric vehicle can suppress an increase in weight, ensure desired frontal collision performance, and reduce the weight of the support structure of the center console.

Further, in the present invention, the console support bracket includes, in a longitudinal section along the vehicle width direction, a pair of left and right bracket side walls facing each other in the vehicle width direction, and a bracket top surface portion connecting the upper ends of the bracket side walls. It is characterized by being formed into a substantially gate-shaped cross section.
According to the present invention, the lower body structure of an electric vehicle can form a ridge line extending substantially straight in the vehicle longitudinal direction at the corner of the bracket side wall and the bracket top surface.

Therefore, the lower body structure of the electric vehicle can efficiently transmit the collision load from the front of the vehicle to the rear of the vehicle along the ridgeline of the console support bracket.
As a result, the lower body structure of the electric vehicle can reduce the weight of the center console support structure and ensure stable frontal collision performance.

In addition, the present invention is characterized in that the bracket side wall portion of the console support bracket includes a flange portion extending outward in the vehicle width direction from the lower end thereof.
According to the present invention, the lower body structure of an electric vehicle can form a ridge line extending substantially straight in the longitudinal direction of the vehicle at the base of the flange portion.

Therefore, the lower body structure of an electric vehicle more efficiently transfers the collision load from the front of the vehicle along the ridgeline of the corner between the bracket side wall and the top surface of the bracket and the ridgeline of the base of the flange. can be transmitted to.
As a result, the lower body structure of the electric vehicle can reduce the weight of the support structure of the center console and ensure more stable frontal collision performance.

Furthermore, the present invention is characterized in that the flange portion of the console support bracket is fastened and fixed to the first floor cross member and the second floor cross member.
According to the present invention, the lower body structure of an electric vehicle can efficiently fix the console support bracket to the first floor cross member and the second floor cross member.

The present invention also provides a lower body structure for an electric vehicle that uses the output of a rotating electrical machine as its driving force, which comprises: a pair of left and right side sills extending in the longitudinal direction of the vehicle; and a substantially flat floor panel disposed between the side sills. , a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated, and connecting the left and right side sills in the vehicle width direction; and below the rear of the front seat. a second floor cross member that is disposed on the upper surface of the floor panel and connects the left and right side sills in the vehicle width direction; and a kick-up section that is stepped upward from the rear end of the floor panel. The front part is connected to the vehicle body on the front side of the vehicle, the rear part is connected to the kick-up part, the lower part is fixed to the first floor cross member and the second floor cross member, and supports the center console. The console support bracket includes a kick-up reinforcement portion that connects a substantially center of the kick-up portion in the vehicle width direction and the floor panel in front of the kick-up portion, and the console support bracket , a pair of left and right bracket side walls facing each other in the vehicle width direction and a bracket top surface portion connecting the upper ends of the bracket side walls are formed into a substantially gate-shaped cross section, and the kick-up reinforcement portion The bracket upper surface portion of the console support bracket is integrally formed with a pair of opposing left and right side wall portions, a front wall portion that connects the front ends of the side wall portions, and an upper surface portion that connects the upper ends of the side wall portions. The console support bracket is fastened and fixed to the upper surface part of the kick-up reinforcing part, and the bracket side wall part of the console support bracket is fastened and fixed to the side wall part of the kick-up reinforcing part.

According to the present invention, the lower body structure of an electric vehicle can improve the support rigidity at the rear of the console support bracket compared to, for example, a case where only the top surface of the console support bracket is fixed to the kick-up reinforcement part. can.

Further, by including the kick-up reinforcing portion that connects and reinforces the kick-up portion and the floor panel, the lower body structure of the electric vehicle can improve the supporting rigidity of the kick-up portion against loads in the longitudinal direction of the vehicle.
Thereby, the lower body structure of the electric vehicle can efficiently transmit a collision load from the front of the vehicle to a further distance behind the vehicle via the kick-up portion.

In addition, when a collision load from the rear of the vehicle is applied to the lower body structure of an electric vehicle, it is possible to transmit the collision load from the rear of the vehicle to the front of the vehicle via the console support bracket, and also to transfer the collision load from the rear of the vehicle to the front of the vehicle via the kick-up reinforcement part. It can be distributed and transmitted to the floor panel.

For this reason, in the lower body structure of an electric vehicle, for example, when a collision load is applied from the rear of the vehicle, the rear floor panel connected to the rear of the vehicle at the kick-up section moves upwards of the vehicle using the lower end of the kick-up section as a fulcrum. It is possible to suppress deformation so as to rotate towards the target.
Therefore, the lower body structure of the electric vehicle can suppress an increase in weight and ensure both stable frontal collision performance and rear collision performance.

The present invention also provides a lower body structure for an electric vehicle that uses the output of a rotating electrical machine as its driving force, which comprises: a pair of left and right side sills extending in the longitudinal direction of the vehicle; and a substantially flat floor panel disposed between the side sills. , a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated, and connecting the left and right side sills in the vehicle width direction; and below the rear of the front seat. a second floor cross member that is disposed on the upper surface of the floor panel and connects the left and right side sills in the vehicle width direction; and a kick-up section that is stepped upward from the rear end of the floor panel. The front part is connected to the vehicle body on the front side of the vehicle, the rear part is connected to the kick-up part, the lower part is fixed to the first floor cross member and the second floor cross member, and supports the center console. a console support bracket; and an upright bracket erected upwardly of the vehicle on the floor panel between the first floor cross member and the second floor cross member, the console support bracket In a longitudinal section along the width direction, a pair of left and right bracket side walls facing each other in the vehicle width direction and a bracket top surface portion connecting the upper ends of the bracket side walls are formed into a substantially gate-shaped cross section, and the upright The bracket includes a pair of left and right legs that are fixed to the floor panel, and an upper surface that connects the upper ends of the legs, and the bracket upper surface of the console support bracket is connected to the upper surface of the upright bracket. It is characterized by being fastened and fixed to the part.

According to the present invention, in the lower body structure of an electric vehicle, the support rigidity of the console support bracket between the first floor cross member and the second floor cross member can be improved by using the upright bracket.
Furthermore, since the floor panel can be supported via the console support bracket and the upright bracket, the lower body structure of the electric vehicle improves the rigidity of the floor panel between the first floor cross member and the second floor cross member. can do.

Therefore, the lower body structure of the electric vehicle can suppress, for example, the membrane vibration of the floor panel, which uses the vibration of the vehicle body during driving as an excitation force, by using the upright bracket and the console support bracket.
As a result, the lower body structure of the electric vehicle can ensure more stable frontal collision performance, and can suppress vibration noise caused by membrane vibration of the floor panel.

Further, as an aspect of the present invention, the first floor cross member and the second floor cross member may have an upper surface located above the vehicle with respect to an upper surface near an end in the vehicle width direction in a longitudinal section along the vehicle width direction. The flange portion of the console support bracket has an enlarged upward cross section of the first floor cross member. The cross-sectional portion may be fastened and fixed to the upper enlarged cross-sectional portion of the second floor cross member.
According to the present invention, the lower body structure of an electric vehicle can ensure stable side collision performance, and the support structure of the center console can be made lighter.

Specifically, the first floor cross member and the second floor cross member are each provided with an enlarged upward cross section, so that the lower body structure of the electric vehicle has a first floor cross member that is long in the vehicle width direction, and a second floor cross member that is long in the vehicle width direction. The rigidity of the second floor cross member near the approximate center in the vehicle width direction can be improved. Therefore, the lower body structure of the electric vehicle can improve the rigidity of the cabin floor surface against collision loads from the sides of the vehicle.

Further, since the flange portion of the console support bracket is fastened and fixed to the upper enlarged cross section of the first floor cross member and the upper enlarged cross section of the second floor cross member, the lower body structure of the electric vehicle is The length of the console support bracket in the vehicle vertical direction can be shortened compared to a case where the flange portion is fastened and fixed to the upper surface adjacent to the upper enlarged cross-sectional portion in the vehicle width direction.
Therefore, the lower body structure of the electric vehicle can ensure stable side collision performance, and the support structure of the center console can be made lighter.

Further, as an aspect of the present invention, the floor panel may include a bulge portion that bulges upwardly of the vehicle in front of the first floor cross member, and the bracket upper surface portion of the console support bracket and the left and right The bracket side wall portion may be fixed to the bulge portion of the floor panel.

With this invention, the lower body structure of an electric vehicle has improved support rigidity at the front of the console support bracket, compared to, for example, a case where only the top surface of the console support bracket is fixed to the bulge of the floor panel. can do.

Furthermore, the lower body structure of an electric vehicle absorbs the collision load from the front of the vehicle through the fixed portion between the bulge of the floor panel and the top surface of the bracket, and the fixed portion between the bulge of the floor panel and the side wall of the bracket. and can be transmitted to the console support bracket.
As a result, the lower body structure of the electric vehicle can efficiently transmit the collision load from the front of the vehicle to the console support bracket, thereby ensuring more stable frontal collision performance.

Further, as an aspect of the present invention, a shift lever support bracket is provided that is fixed to the upper surface part of the bracket of the console support bracket and supports a shift lever, and the shift lever support bracket of the console support bracket is fixed to the upper surface part of the console support bracket with respect to the first floor cross member. A bracket upper surface portion and a flange portion extending outward in the vehicle width direction from the lower end of the bracket side wall portion are fixed, the bracket upper surface portion of the console support bracket is fixed to the upright bracket, and the second The flange portion of the console support bracket may be fixed to a floor cross member.
According to the present invention, in the lower body structure of an electric vehicle, the bending deformation of the console support bracket can be suppressed, and the weight of the support structure of the center console can be reduced.

Specifically, the load applied to the shift lever in the longitudinal direction of the vehicle, the load in the width direction of the vehicle, and the load in the vertical direction of the vehicle act on the console support bracket through the shift lever support bracket. For this reason, the console support bracket is bent and deformed by the load applied to the shift lever, which may deteriorate the shift feeling or generate unintended vibration noise, for example.

Therefore, by fixing the bracket upper surface part and flange part of the console support bracket to the first floor cross member, the lower body structure of the electric vehicle can be attached to the console support bracket at a highly rigid part relatively close to the shift lever. can be supported.

Furthermore, by fixing the bracket upper surface portion of the console support bracket to the upright bracket, the lower body structure of the electric vehicle can be constructed by cooperating with the upright bracket and the first floor cross member that is relatively close to the shift lever. The support rigidity of the console support bracket can be improved, and bending deformation of the upper surface of the console support bracket can be suppressed.

On the other hand, by fixing the flange portion of the console support bracket to the second floor cross member, the lower body structure of the electric vehicle can transfer the load acting on the console support bracket from the shift lever to the upright bracket and the second floor cross member. It can be distributed and transmitted to floor cross members.

At this time, since the load acting on the console support bracket from the shift lever is smaller toward the rear of the vehicle, the lower body structure of the electric vehicle can be modified to reduce the number of fixing parts to the upright bracket and the The number of fixing parts for the second floor cross member can be smaller than the number of fixing parts for the first floor cross member.

As a result, the lower body structure of an electric vehicle can reduce the number of steps needed to assemble the console support bracket to the first floor cross member, upright bracket, and second floor cross member, as well as increase the weight due to the increase in the number of fixing points for the console support bracket. can be suppressed.
Therefore, the lower body structure of the electric vehicle can suppress the bending deformation of the console support bracket and reduce the weight of the center console support structure.

According to the present invention, it is possible to provide a lower body structure for an electric vehicle that can suppress weight increase, ensure desired frontal collision performance, and reduce the weight of the center console support structure.

FIG. 1 is an external perspective view showing the external appearance of a cabin portion of an electric vehicle. FIG. 1 is an external perspective view showing the external appearance of a lower body of an electric vehicle. FIG. 3 is a plan view showing the appearance of the lower vehicle body in plan view. A sectional view taken along the line AA in FIG. 3. FIG. 3 is an external perspective view showing the external appearance of the bulging member as viewed from the rear of the vehicle. A sectional view taken along the line BB in FIG. 3. A sectional view taken along the line CC in FIG. 3. FIG. 5 is an enlarged cross-sectional view showing an enlarged cross-section of a main part on the front side of the vehicle in FIG. 4; FIG. 3 is an external perspective view showing the external appearance of the kick-up reinforcing member as viewed from the front of the vehicle. FIG. 5 is an enlarged cross-sectional view showing an enlarged cross-section of a main part on the rear side of the vehicle in FIG. 4; A sectional view taken along the line DD in FIG. 3. A sectional view taken along the line EE in FIG. 3. FIG. 7 is an external perspective view showing the external appearance of the second support bracket when viewed from the rear of the vehicle. A sectional view taken along the line FF in FIG. 3. FIG. 3 is an external perspective view showing the external appearance of the upright bracket as viewed from the rear of the vehicle.

An embodiment of this invention will be described below with reference to the drawings.
The vehicle of the present embodiment is an electric vehicle that includes a battery unit such as a lithium ion secondary battery, a rotating electrical machine that rotates due to power supply from the battery unit, and uses the output of the rotating electrical machine as a driving force. . The lower vehicle body structure in the cabin portion of such electric vehicle 1 will be explained in detail using FIGS. 1 to 15.

Note that FIG. 1 shows a perspective view of the exterior of the vehicle interior of the electric vehicle 1, FIG. 2 shows a perspective view of the exterior of the lower body of the electric vehicle 1, FIG. 3 shows a plan view of the lower body, and FIG. 3, and FIG. 5 shows an external perspective view of the bulging member 14 as viewed from the rear of the vehicle.

Furthermore, FIG. 6 shows a sectional view taken along the line BB in FIG. 3, FIG. 7 shows a sectional view taken along the line CC in FIG. 3, and FIG. 8 shows a main part on the front side of the vehicle in FIG. 9 shows an external perspective view of the kick-up reinforcing member 50 as viewed from the front of the vehicle, and FIG. 10 shows an enlarged sectional view of a main part on the rear side of the vehicle in FIG. 4.

In addition, FIG. 11 shows a sectional view taken along line DD in FIG. 3, FIG. 12 shows a sectional view taken along line EE in FIG. 3, and FIG. 13 shows a cross-sectional view taken along line EE in FIG. 14 shows a cross-sectional view taken along line FF in FIG. 3, and FIG. 15 shows a perspective view of the exterior of the upright bracket 70 as viewed from the rear of the vehicle.

In addition, for clarity of illustration, the side sill outer 7A is not shown in FIGS. 1, 2, and 3, and the front side sill outer 7A is not shown in FIGS. Detailed illustration of the battery unit 16 disposed below the vehicle on the floor panel 8 is omitted.

In addition, in the figure, arrow Fr and arrow Rr indicate the front-rear direction, with arrow Fr indicating the front and arrow Rr indicating the rear. Furthermore, the arrow Rh and the arrow Lh indicate the vehicle width direction, the arrow Rh indicates the right direction, and the arrow Lh indicates the left direction.

As shown in FIG. 1, in the cabin of the electric vehicle 1, an instrument panel 2 is provided at the front of the cabin, and a center console 3 and a shifter are located below the vehicle at approximately the center of the instrument panel 2 in the vehicle width direction. A lever 4 is provided.
Although detailed illustrations are omitted, two front seats are arranged in the cabin of the electric vehicle 1 with a center console 3 in between, and a rear seat is arranged behind the center console 3 in the vehicle. shall be taken as a thing.

Furthermore, as shown in FIG. 1, the center console 3 includes a center console front part 3A located below the vehicle of the instrument panel 2, and a center console rear part 3B connected to the rear side of the vehicle of the center console front part 3A. It is configured.
As shown in FIG. 1, the rear part of the center console 3B is integrally provided with a design panel that covers the base of the shift lever 4, and a cup holder 3a and an armrest 3b are arranged in this order at the rear of the vehicle. ing.

Further, as shown in FIG. 2, the shift lever 4 is placed and fixed on a console support bracket 60, which will be described later, via a shift lever support bracket 5. The shift lever support bracket 5 has a front portion fastened and fixed to the upper surface of a first floor cross member 30 described later, and a rear portion fastened and fixed to the upper surface of an upright bracket 70 described later.

As shown in FIGS. 1 and 2, the lower body of the vehicle interior of the electric vehicle 1 includes a dash panel 6 that partitions the motor room and the vehicle interior in the longitudinal direction of the vehicle, and both ends of the dash panel 6 in the vehicle width direction. A pair of left and right side sills 7 extending from the lower part of the vehicle to the rear of the vehicle, a front floor panel 8 arranged between the left and right side sills 7 and forming the floor surface of the vehicle interior, and a step raised upward from the rear end of the front floor panel 8 to the top of the vehicle. The kick-up section 9 is provided with a rear floor panel 10 connected to the rear end of the kick-up section 9.

Furthermore, as shown in FIGS. 1 and 2, the lower body of the electric vehicle 1 includes a pair of left and right floor frame uppers 11 that extend in the longitudinal direction of the vehicle across the dash panel 6 and the front floor panel 8; It includes a pair of left and right floor frame lowers 12 (see FIG. 3) extending from the rear end to the rear of the vehicle, a first floor cross member 30 and a second floor cross member 40 that connect the left and right side sills 7 in the vehicle width direction. ing.

In addition, as shown in FIGS. 1 and 2, the lower body of the electric vehicle 1 includes a kick-up reinforcing member 50 that connects the vicinity of the rear end of the front floor panel 8 and the kick-up portion 9, the shift lever 4, and It includes a console support bracket 60 that supports the center console 3, and an upright bracket 70 that supports the console support bracket 60 from below the vehicle.

Specifically, the dash panel 6 is a panel member that is thick in the longitudinal direction of the vehicle, and has a lower portion curved toward the rear of the vehicle. As shown in FIGS. 2 to 4, this dash panel 6 has a tunnel-shaped portion 6a formed in the vicinity of the center in the width direction of the vehicle, which bulges out into a substantially tunnel shape extending from the upper front of the vehicle to the lower rear of the vehicle. has been done.
The tunnel-shaped portion 6a is constituted by a separate member that covers an opening cut out near the approximate center of the dash panel 6 in the vehicle width direction, and is integrally formed with the dash panel 6 by being joined to the dash panel 6.

Further, the left and right side sills 7 are configured such that a cross-sectional shape in a longitudinal cross-section along the vehicle width direction forms a closed cross-section with a substantially rectangular cross-section (see FIG. 6).
More specifically, in a longitudinal section along the vehicle width direction, the side sill 7 includes a side sill outer 7A (see FIG. 6) having a substantially hat-shaped cross section that protrudes outward in the vehicle width direction, and a substantially hat cross section that protrudes inward in the vehicle width direction. It is composed of a side sill inner 7B (see FIG. 6).

Further, as shown in FIGS. 2 to 4, the front floor panel 8 is a substantially flat panel member having a thickness in the vertical direction of the vehicle, and its front end is joined to the lower end of the dash panel 6, and its rear end is described later. The kick-up portion 9 is joined to the lower end of the kick-up portion 9.

As shown in FIG. 4, in the front part of the front floor panel 8, a front opening S1 is formed, which is cut out so that the approximate center in the vehicle width direction is continuous with the internal space of the tunnel-shaped part 6a in the dash panel 6. has been done.
On the other hand, in the rear part of the front floor panel 8, as shown in FIG. 4, a rear opening S2 is formed, which is cut out so that the approximate center in the vehicle width direction is continuous with the internal space of the kick-up reinforcing member 50, which will be described later. ing.

As shown in FIGS. 2 to 4, the above-mentioned front floor panel 8 has a bulging member that covers the front opening S1 and bulges upward from the vehicle so as to be continuous from the tunnel-shaped portion 6a of the dash panel 6. 14 are joined. The bulging member 14 is formed with a length in the vehicle longitudinal direction from the front end of the front floor panel 8 to the front end of a first floor cross member 30, which will be described later.

More specifically, as shown in FIGS. 4 and 5, the bulging member 14 has a pair of left and right side wall portions 14a that are substantially triangular in side view and are opposed in the vehicle width direction, and a rear end is located below the vehicle with respect to a front end. The rear wall portion 14b is inclined to the rear wall portion 14b, and the flange portion 14c is formed along the lower end of the side wall portion 14a and the lower end of the rear wall portion 14b. There is.

In this bulging member 14, the front part of the side wall part 14a and the front part of the rear wall part 14b are joined to the tunnel-shaped part 6a of the dash panel 6, and the flange part 14c is joined to the upper surface of the front floor panel 8. This forms a substantially tunnel-shaped space that is continuous with the tunnel-shaped portion 6a of the dash panel 6.

Further, as shown in FIGS. 2 to 4, the kick-up portion 9 has a cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle, which is a kick-up portion extending from the rear end of the front floor panel 8 toward the top of the vehicle. The front portion 9a and the kick-up upper surface portion 9b extending toward the rear of the vehicle from the upper end of the kick-up front portion 9a are formed into a substantially L-shaped cross section.

As shown in FIG. 4, a third cross member 15 extending in the vehicle width direction is connected to the lower surface of the kick-up portion 9, spanning the upper part of the kick-up front part 9a and the front part of the kick-up upper part 9b. has been done. The third cross member 15 has a substantially L-shaped cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle with a corner at the lower rear of the vehicle, and extends in the vehicle width direction with the kick-up portion 9. It is formed to have a closed cross section with a substantially rectangular cross section.

Further, the rear floor panel 10 is a panel member having a thickness in the vertical direction of the vehicle, and is joined to the rear end of the kick-up upper surface portion 9b of the kick-up portion 9. Although detailed illustrations are omitted, it is assumed that a seat portion of a rear seat is placed and fixed on the upper surface of the rear floor panel 10.

Further, as shown in FIGS. 2 and 3, the floor frame upper 11 is disposed astride the surface of the lower portion of the dash panel 6 on the inside of the vehicle interior and the upper surface of the front floor panel 8. Although detailed illustrations are omitted, this floor frame upper 11 has a substantially hat-shaped cross-sectional shape in a longitudinal section along the vehicle width direction, projecting upward from the vehicle, and is attached to the dash panel 6 and the front floor panel 8. By being joined, a closed cross section with a substantially rectangular cross section extending in the longitudinal direction of the vehicle is formed.

Note that, as shown in FIG. 3, the floor frame upper 11 is disposed near the outer side in the vehicle width direction so as to pass near the side sill 7 in plan view, and the rear end is opposite to the front end in the vehicle width direction. It is located on the outside.

Further, as shown in FIG. 3, the lower floor frame 12 is disposed on the lower surface of the front floor panel 8 so as to be continuous from the upper floor frame 11 in plan view.
More specifically, as shown in FIG. 3, the floor frame lower 12 is disposed such that its rear end is positioned outward in the vehicle width direction with respect to its front end. In other words, the floor frame lower 12 is disposed so as to pass near the left and right side sills 7.

As shown in FIG. 6, the floor frame lower 12 has a substantially hat-shaped cross-sectional shape in a longitudinal section along the vehicle width direction, projecting downward from the vehicle, and is joined to the lower surface of the front floor panel 8. , forming a closed cross section with a substantially rectangular cross section extending in the longitudinal direction of the vehicle.

As shown in FIGS. 3 and 4, between the floor frame lower 12 on the vehicle lower side of the front floor panel 8, electric power is supplied to the rotating electric machine in a range from near the front end of the front floor panel 8 to the rear floor panel 10. A battery unit 16 is provided to supply the power.

In addition, as shown in FIGS. 2 and 3, the first floor cross member 30 is located at a position adjacent to the rear end of the bulging member 14 on the front floor panel 8 on the rear side of the vehicle, and substantially extends from the left and right side sills 7. connected in a straight line.
As shown in FIG. 4, the first floor cross member 30 is formed to have a closed cross section extending in the vehicle width direction with the front floor panel 8 in a longitudinal cross section along the longitudinal direction of the vehicle.

Furthermore, as shown in FIG. 6, in a longitudinal cross section along the vehicle width direction, the upper surface of the first floor cross member 30 near the center in the vehicle width direction is located above the vehicle with respect to the upper surface on the outer side in the vehicle width direction. In this way, the cross-sectional shape near the center in the vehicle width direction is formed to have an upwardly enlarged cross-sectional portion 30a that is enlarged upwardly of the vehicle.

Further, as shown in FIGS. 2 and 3, the second floor cross member 40 connects the left and right side sills 7 substantially linearly at a position spaced apart from the first floor cross member 30 by a predetermined distance behind the vehicle. are doing.
As shown in FIG. 4, the second floor cross member 40 is formed to have a closed cross section extending in the vehicle width direction together with the front floor panel 8 in a longitudinal cross section along the longitudinal direction of the vehicle.

Furthermore, as shown in FIG. 7, in the longitudinal section along the vehicle width direction, the upper surface of the second floor cross member 40 near the center in the vehicle width direction is located above the vehicle with respect to the upper surface on the outer side in the vehicle width direction. In this way, the cross-sectional shape near the center in the vehicle width direction is expanded upwardly to form an upwardly enlarged cross-sectional portion 40a.

Further, as shown in FIGS. 2 to 4, the kick-up reinforcing member 50 covers the rear opening S2 of the front floor panel 8 at approximately the center in the vehicle width direction, and also covers the kick-up front portion 9a of the kick-up portion 9 and the front It is connected to the floor panel 8.

Further, as shown in FIGS. 2 to 4, the console support bracket 60 connects the bulging member 14 of the front floor panel 8 and the kick-up reinforcing member 50 in the longitudinal direction of the vehicle.
Furthermore, the console support bracket 60 is fastened and fixed to the upper surface of the first floor cross member 30, the upper surface of the second floor cross member 40, and the upper surface of the upright bracket 70, respectively.

In addition, as shown in FIGS. 1, 2, and 4, the shift lever support bracket 5 that supports the shift lever 4 is placed and fixed on the console support bracket 60, and the center console rear part 3B is placed and fixed on the console support bracket 60. has been done.
Further, as shown in FIGS. 2 and 4, the upright bracket 70 is connected to the upper surface of the front floor panel 8 and the upper surface of the console support bracket 60 between the first floor cross member 30 and the second floor cross member 40. It is connected and supported.

Subsequently, the above-described first floor cross member 30, second floor cross member 40, kick-up reinforcing member 50, console support bracket 60, and upright bracket 70 will be described in more detail.
As shown in FIGS. 3 and 6, the first floor cross member 30 includes a central member member 31, which is a member extending in the vehicle width direction between the floor frame lower 12, and a central member member 31 located at both ends of the central member member 31 in the vehicle width direction. A pair of left and right front seats on which the joined left and right pair of end member members 32, the cross member reinforcing member 33 forming the upper enlarged cross-section portion 30a, and the front portion of the seat slide rail 17 on the outside in the vehicle width direction are placed and fixed. It is composed of an outer fixing member 34.
Note that the seat slide rails 17 are a pair of left and right seat slide rails 17 that support the front seat 18.

As shown in FIG. 8, the central member member 31 has a cross-sectional shape in a longitudinal section taken along the longitudinal direction of the vehicle, and has a substantially hat-shaped cross-section projecting upward from the vehicle.
Specifically, as shown in FIGS. 6 and 8, the central member member 31 includes a member front surface portion 31a forming a surface on the front side of the vehicle, a member rear surface portion 31b forming a surface on the rear side of the vehicle, and a member rear surface portion 31b forming a surface on the vehicle upper side. It is integrally formed with a member upper surface portion 31c forming a surface, a front flange portion 31d extending toward the front of the vehicle from the lower end of the member front surface portion 31a, and a rear flange portion 31e extending toward the rear of the vehicle from the lower end of the member rear surface portion 31b. ing.

As shown in FIGS. 6 and 8, this central member member 31 has a front flange portion 31d and a rear flange portion 31e joined to the upper surface of the front floor panel 8.
As shown in FIGS. 3 and 6, the member upper surface portion 31c of the central member member 31 has a substantially rectangular flat plate shape when viewed from above, and has substantially the same vertical direction of the vehicle as the inner upper surface portion 7a of the side sill inner 7B. It is formed at the position of

On the other hand, the left and right end member members 32 have a substantially hat-shaped cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle, projecting upward from the vehicle, and extending continuously from the central member member 31 in the vehicle width direction. It is formed.
Specifically, as shown in FIGS. 3 and 6, the end member member 32 has a member upper surface portion 32a located at approximately the same position in the vehicle vertical direction as the member upper surface portion 31c of the central member member 31, and a member upper surface portion 32a located at approximately the same position in the vehicle vertical direction A member front section 32b (see FIG. 3) extending downward from the vehicle from the front end of the member 32a, a member rear section 32c extending downward from the vehicle from the rear end of the member top section 32a, and a lower end of the member front section 32b. The member is integrally formed with a front flange portion extending toward the front of the vehicle and a rear flange portion extending toward the rear of the vehicle from the lower end of the member rear surface portion 32c.

The end member member 32 has a front flange portion and a rear flange portion joined to the upper surface of the front floor panel 8, and an extended portion extending the member upper surface portion 32a outward in the vehicle width direction is connected to the inner side of the side sill 7. It is joined to the upper surface portion 7a.

As shown in FIG. 6, the member upper surface portion 32a of the end member member 32 is a flat surface having a length in the vehicle longitudinal direction that is approximately the same as the length of the member upper surface portion 31c of the central member member 31 in the vehicle longitudinal direction. It is formed into a substantially flat plate shape that is substantially rectangular in appearance.

In addition, as shown in FIG. 8, the cross-member reinforcing member 33 has a cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle that is approximately gate-shaped in cross-section with an opening at the bottom of the vehicle. It is formed in a shape with a closed cross section extending in the width direction.

Specifically, as shown in FIGS. 6 and 8, the cross member reinforcing member 33 has an upper surface portion 33a located above the member upper surface portion 31c of the central member member 31 in the vehicle, and a front end of the upper surface portion 33a that is connected to the vehicle. A front surface portion 33b extending downward, a rear surface portion 33c extending downward from the rear end of the upper surface portion 33a, and a pair of left and right portions extending downward from the vehicle width direction from both ends of the upper surface portion 33a in the vehicle width direction. It is integrally formed with the side surface portion 33d.

Furthermore, as shown in FIG. 6, the cross-member reinforcing member 33 has a hat-shaped cross-sectional shape in a longitudinal cross-section along the vehicle width direction, and forms a closed cross-section with the member upper surface portion 31c of the central member member 31. A pair of left and right side flange portions 33e extending outward in the vehicle width direction from the lower end of the side surface portion 33d are integrally formed.

As shown in FIGS. 6 and 8, the cross member reinforcing member 33 has a front part 33b joined to the member front part 31a of the central member member 31, and a rear part 33c connected to the member rear part 31b of the central member member 31. The side flange portions 33e are joined to the member upper surface portion 31c of the central member member 31.

As shown in FIGS. 3, 6, and 8, the top surface portion 33a and side surface portion 33d of the cross member reinforcing member 33 have approximately the same length in the longitudinal direction of the vehicle as the member top surface portion 31c of the central member member 31. It is formed into a substantially rectangular shape in plan view.

Furthermore, as shown in FIG. 6, front seat inner side fixing parts 33f to which the front part of the seat slide rail 17 on the inner side in the vehicle width direction is fastened and fixed are integrally formed at both ends of the upper surface part 33a in the vehicle width direction. The front seat inner side fixing portion 33f is formed at approximately the same position in the vehicle vertical direction as the approximately central portion in the vehicle width direction of the upper surface portion 33a.

In addition, as shown in FIGS. 6 and 8, the upper surface portion 33a has a substantially M-shaped cross-sectional shape in the longitudinal section along the vehicle width direction, on the inside of the front seat inner fixing portion 33f in the vehicle width direction. A fastening bracket 35 is fastened and fixed via a fastening bolt T1.

Note that, as shown in FIG. 8, two weld bolts 36 are joined to the upper surface of the fastening bracket 35 so as to protrude upward from the vehicle. As shown in FIG. 8, a shift lever support bracket 5 and a console support bracket 60 (a bracket upper surface portion 672 of a second support bracket 62 to be described later) are fastened to this weld bolt 36 together.
Further, as shown in FIGS. 2 and 6, the front seat outer side fixing member 34 is formed in a substantially box shape that bulges upward in the vehicle relative to the member upper surface portion 32a of the end member member 32.

Further, as shown in FIGS. 3 and 7, the second floor cross member 40 includes a central member member 41 that is a member extending in the vehicle width direction between the floor frame lower 12, and a central member member 41 that is a member extending in the vehicle width direction between the floor frame lower 12. It is composed of a pair of left and right end member members 42 joined to both ends, and a cross member reinforcing member 43 forming an enlarged upper cross section 40a.

As shown in FIG. 8, the central member member 41 has a cross-sectional shape in a longitudinal section taken along the longitudinal direction of the vehicle, and has a substantially hat-shaped cross-section projecting upward from the vehicle.
Specifically, as shown in FIGS. 7 and 8, the central member member 41 includes a member front surface portion 41a forming a surface on the front side of the vehicle, a member rear surface portion 41b forming a surface on the rear side of the vehicle, and a member rear surface portion 41b forming a surface on the vehicle upper side. It is integrally formed with a member upper surface portion 41c forming a surface, a front flange portion 41d extending toward the front of the vehicle from the lower end of the member front surface portion 41a, and a rear flange portion 41e extending toward the vehicle rear from the lower end of the member rear surface portion 41b. ing.

As shown in FIGS. 7 and 8, this central member member 41 has a front flange portion 41d and a rear flange portion 41e joined to the upper surface of the front floor panel 8.
As shown in FIGS. 3 and 7, the member upper surface portion 41c of the central member member 41 has a substantially rectangular flat plate shape in plan view, and is located at a position below the vehicle than the inner upper surface portion 7a of the side sill inner 7B. is formed.

On the other hand, the left and right end member members 42 have a substantially hat-shaped cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle, projecting upward from the vehicle, and extend continuously from the central member member 41 in the vehicle width direction. formed into a shape.

Specifically, as shown in FIGS. 3 and 7, the end member member 42 has a member upper surface portion 42a located at approximately the same position in the vehicle vertical direction as the member upper surface portion 41c of the center member member 41, and a member upper surface portion 42a located at approximately the same position in the vehicle vertical direction. A member front surface portion 42b (see FIG. 3) extending from the front end of the member portion 42a toward the lower side of the vehicle, a member rear surface portion 42c extending from the rear end of the member upper surface portion 42a toward the vehicle lower side, and a lower end of the member front surface portion 42b. It is integrally formed with a front flange portion extending from the member rear surface portion 42c toward the front of the vehicle, and a rear flange portion extending toward the rear of the vehicle from the lower end of the member rear surface portion 42c.

This end member member 42 has a front flange part and a rear flange part joined to the upper surface of the front floor panel 8, and a member upper surface part 42a (a front seat outer fixed part 42f described later) extending outward in the vehicle width direction. The extended portion is joined to the inner upper surface portion 7a of the side sill 7.

As shown in FIGS. 3 and 7, the member upper surface portion 42a of the end member member 42 has a length in the vehicle longitudinal direction that is approximately the same as the length of the member upper surface portion 41c of the central member member 41 in the vehicle longitudinal direction. It is formed into a substantially rectangular flat plate shape in plan view.

Furthermore, as shown in FIGS. 3 and 7, on the outside in the vehicle width direction of the member upper surface portion 42a, a front seat outside fixing portion 42f, to which the seat slide rail 17 on the outside in the vehicle width direction is fastened and fixed, expands upward in the vehicle. It is integrally formed.

In addition, as shown in FIGS. 7 and 8, the cross-member reinforcing member 43 has a cross-sectional shape in a longitudinal section along the longitudinal direction of the vehicle that is approximately hat-shaped in cross-section and projects upwardly of the vehicle. It is formed in a shape with a closed cross section extending in the vehicle width direction.

Specifically, as shown in FIGS. 7 and 8, the cross member reinforcing member 43 has an upper surface portion 43a located above the member upper surface portion 41c of the central member member 41 above the vehicle, and a front end of the upper surface portion 43a that is connected to the vehicle. A front surface portion 43b extending downward, a rear surface portion 43c extending downward from the rear end of the upper surface portion 43a, and a pair of left and right portions extending downward from the vehicle width direction from both ends of the upper surface portion 43a in the vehicle width direction. It is integrally formed with a side surface portion 43d, a front flange portion 43e extending toward the front of the vehicle from the lower end of the front surface portion 43b, and a rear flange portion 43f extending toward the rear of the vehicle from the lower end of the rear surface portion 43c.

Furthermore, as shown in FIG. 7, the cross-member reinforcing member 43 has a hat-shaped cross-sectional shape in a longitudinal section along the vehicle width direction, and forms a closed cross-section with the member upper surface portion 41c of the central member member 41. As such, a pair of left and right side flange portions 43g extending outward in the vehicle width direction from the lower end of the side surface portion 43d are integrally formed.

As shown in FIGS. 7 and 8, the cross member reinforcing member 43 has a front flange portion 43e joined to the upper surface of the front floor panel 8 via a front flange portion 41d of the central member member 41, and a rear flange portion 43f is joined to the upper surface of the front floor panel 8 via the rear flange portion 41e of the central member member 41, and the side flange portions 43g are joined to the member upper surface portion 41c of the central member member 41.

As shown in FIGS. 3, 7, and 8, the top surface portion 43a and side surface portion 43d of the cross member reinforcing member 43 have approximately the same length in the longitudinal direction of the vehicle as the member top surface portion 41c of the central member member 41. It is formed into a substantially rectangular shape in plan view.

Furthermore, as shown in FIG. 7, front seat inner fixing parts 43h to which the rear part of the seat slide rail 17 on the inner side in the vehicle width direction is fastened and fixed are provided at both ends of the upper surface part 43a in the vehicle width direction. It is integrally formed at approximately the same position in the vertical direction of the vehicle as the approximately central portion.

In addition, as shown in FIG. 7, on the lower surface of the upper surface portion 43a, two weld nuts 44 into which the fastening bolts T2 are screwed are provided on the inside of the front seat inner fixing portion 43h in the vehicle width direction. They are joined at predetermined intervals. As shown in FIG. 7, a console support bracket 60 (a second fixed portion 673b of a second support bracket 62 to be described later) is fastened and fixed to this weld nut 44 via a fastening bolt T2.

Further, as shown in FIGS. 9 and 10, the kick-up reinforcing member 50 includes a main body member 51 joined to the kick-up front portion 9a of the kick-up portion 9 and the upper surface of the front floor panel 8 at the front lower part of the vehicle. , and a cover member 52 detachably provided on the upper surface of the main body member 51.

As shown in FIGS. 9 to 11, the main body member 51 has a substantially L-shaped cross-sectional shape in a longitudinal cross-section along the longitudinal direction of the vehicle, and a cross-sectional shape in a longitudinal cross-section along the vehicle width direction toward the upper side of the vehicle. It is formed into a substantially hat-shaped cross section with a protruding shape. In other words, the main body member 51 is formed into a substantially box shape that is open at the bottom of the vehicle and at the rear of the vehicle.

More specifically, as shown in FIGS. 9 to 11, the main body member 51 includes an upper surface portion 51a formed at the lower end of the kick-up front portion 9a of the kick-up portion 9 at approximately the same position in the vertical direction of the vehicle; The rear opening S2 of the front floor panel 8 is covered by a pair of left and right side wall portions 51b extending downward from the vehicle width direction from both ends of the upper surface portion 51a, and a front wall portion 51c extending downward from the vehicle from the front end of the upper surface portion 51a. It is integrally formed into a substantially box shape.

Furthermore, the main body member 51 has a portion in which the lower end of the side wall portion 51b extends outward in the vehicle width direction in a flange shape, and a portion in which the lower end of the front wall portion 51c extends in a flange shape toward the front of the vehicle. A substantially U-shaped flange portion 51d in plan view is integrally formed along the lower end of the side wall portion 51b and the lower end of the front wall portion 51c.

The main body member 51 has an upper surface portion 51 a and left and right side wall portions 51 b joined to the kick-up front portion 9 a of the kick-up portion 9 , and a flange portion 51 d joined to the upper surface of the front floor panel 8 .

As shown in FIGS. 9 and 11, the side wall portion 51b of the main body member 51 has a weld nut 53 into which the fastening bolt T3 is screwed through an opening provided at a position in front of the vehicle and above the vehicle. Bonded to the inner surface. The rear part of the console support bracket 60 is fastened and fixed to this weld nut 53 via a fastening bolt T3.

Further, as shown in FIG. 10, the upper surface portion 51a has an opening S3 that is substantially rectangular in plan view at a portion facing the rear opening S2 of the front floor panel 8.
Furthermore, as shown in FIGS. 9 and 11, four weld bolts 54 projecting upward from the vehicle are joined to the upper surface portion 51a around the opening S3. The rear part of the console support bracket 60 and the cover member 52 are fastened to the weld bolt 54 together.

On the other hand, as shown in FIGS. 9 and 10, the cover member 52 has a predetermined thickness in the vehicle vertical direction and is formed into a substantially flat plate shape that covers the opening S3 of the main body member 51. As shown in FIGS. 10 and 11, the cover member 52 is fastened to the weld bolts 54 of the main body member 51 with the rear part of the console support bracket 60 interposed therebetween.

Further, as shown in FIGS. 2 and 3, the console support bracket 60 connects the bulging member 14 of the front floor panel 8 and the kick-up reinforcing member 50 in the longitudinal direction of the vehicle. As shown in FIGS. 1 to 4, this console support bracket 60 supports a first support bracket 61 that supports the center console front part 3A, the shift lever 4, and the center console rear part 3B in the vehicle interior of the electric vehicle 1. and a second support bracket 62 for support.

As shown in FIG. 5, the first support bracket 61 is composed of a bracket main body 63 that is joined to the bulging member 14 of the front floor panel 8, and a rear reinforcement 64 that reinforces the rear part of the bracket main body 63. There is.
As shown in FIGS. 4 and 5, the first support bracket 61 is formed to have a length in the vehicle longitudinal direction that is approximately the same as the length of the bulging member 14 of the front floor panel 8 in the vehicle longitudinal direction.

Specifically, as shown in FIGS. 5 and 12, the bracket main body 63 includes a pair of left and right bracket side walls 631 that face each other in the vehicle width direction, and a bracket top surface 632 that connects the upper ends of the bracket side walls 631. , is formed into a substantially gate-shaped shape when viewed from the front.

As shown in FIGS. 5 and 12, the bracket upper surface portion 632 has a shape that is recessed downwardly of the vehicle and has a substantially groove-shaped groove portion 632a extending in the longitudinal direction of the vehicle near the center in the vehicle width direction. It is formed. This recessed groove portion 632a is recessed from near the approximate center of the bracket upper surface portion 632 in the longitudinal direction of the vehicle to the rear end thereof.

Note that, as shown in FIG. 4, the bracket main body 63 is spaced apart from the rear wall portion 14b of the bulging member 14 at a position in front of the vehicle than a rear reinforcement 64, which will be described later, in a longitudinal section along the longitudinal direction of the vehicle. The bracket upper surface portion 632 at this position is connected to the rear wall portion 14b of the bulging member 14 via the connecting bracket 19 having a substantially Z-shaped cross section.

On the other hand, the rear reinforcement 64 of the first support bracket 61 is joined to the inner surface of the rear portion of the bracket main body 63, as shown in FIG. As shown in FIGS. 5 and 12, this rear reinforcement 64 has a pair of left and right side surfaces 641 joined to the upper part of the bracket side wall 631 of the bracket main body 63, and a pair of left and right side surfaces 641 joined to the bracket top surface 632 of the bracket main body 63. The upper surface portion 642 is integrally formed with the upper surface portion 642.

As shown in FIGS. 5 and 12, a fastening bolt T4 is screwed into the rear part of the side surface 641 of the rear reinforcement 64 through an opening provided in the bracket side wall 631 of the bracket main body 63. A weld nut 65 is welded. The front part of the second support bracket 62 is fastened and fixed to this weld nut 65 via a fastening bolt T4.

Furthermore, as shown in FIGS. 5 and 12, a weld bolt 66 protrudes upward from the vehicle through an opening provided in the bracket top surface 632 of the bracket body 63 at the rear of the top surface 642 in the vehicle width direction. They are joined at predetermined intervals. The front part of the second support bracket 62 is fastened and fixed to this weld bolt 66.

Further, as shown in FIG. 13, the second support bracket 62 includes a bracket main body 67 connected to the rear part of the first support bracket 61, and a front reinforcement 68 that reinforces the front part of the bracket main body 67. has been done.

As shown in FIGS. 11 to 13, the bracket main body 67 has a substantially gate-shaped cross-sectional shape in a longitudinal section along the vehicle width direction with an opening at the bottom of the vehicle, and has a left and right pair facing each other in the vehicle width direction. The bracket side wall portion 671 is integrally formed with a bracket upper surface portion 672 that connects the upper end of the bracket side wall portion 671 in the vehicle width direction.

As shown in FIG. 13, the left and right bracket side wall portions 671 are formed into a substantially flat plate shape that is longer in the longitudinal direction of the vehicle than in the vertical direction of the vehicle. Note that the bracket side wall portion 671 is formed to have a length in the vehicle vertical direction that is shorter than the length in the vehicle vertical direction from the bracket upper surface portion 672 to the upper surface of the front floor panel 8.

Furthermore, as shown in FIG. 13, a flange portion 673 is integrally formed at the lower end of the bracket side wall portion 671 and extends outward in the vehicle width direction from the front end to the rear end.
The flange portion 673 includes a first fixing portion 673a that is fastened and fixed to the top surface of the first floor cross member 30 at positions separated by a predetermined distance in the longitudinal direction of the vehicle, and a first fixed portion 673a that is fastened and fixed to the top surface of the second floor cross member 40. A second fixed portion 673b further extends outward in the vehicle width direction as a flange portion.

As shown in FIGS. 11 to 13, such a bracket side wall portion 671 has a bolt insertion hole 671a opened near the front end that allows the fastening bolt T4 to be inserted therethrough. An insertion hole 671b is formed near the rear end.

Further, as shown in FIGS. 2 to 4, the bracket upper surface portion 672 of the bracket main body 67 has, at its front portion, the shift lever support bracket 5 that supports the shift lever 4 from below the vehicle, and the center console rear portion 3B. They are mounted and fixed in this order from the front of the vehicle.

As shown in FIGS. 3 and 13, this bracket upper surface portion 672 is formed into a substantially rectangular flat plate shape in plan view, with a substantially constant length in the vehicle width direction and long in the vehicle longitudinal direction.
For this reason, the bracket main body 67 of the second support bracket 62 has a corner portion between the bracket side wall portion 671 and the bracket upper surface portion 672, and a corner portion between the bracket side wall portion 671 and the flange portion 673, at least in plan view. A ridgeline is formed that extends substantially in a straight line in the front-rear direction.

Further, as shown in FIGS. 12 and 13, the bracket upper surface portion 672 is recessed downward from the vehicle so as to be continuous with the groove portion 632a of the first support bracket 61, and has a groove portion 672a extending in the longitudinal direction of the vehicle. is formed near the center in the vehicle width direction.

As shown in FIGS. 3 and 13, the groove portion 672a of the bracket upper surface portion 672 is recessed along a length in the vehicle longitudinal direction from the front end of the bracket upper surface portion 672 to the vicinity of the second fixed portion 673b.
Note that the concave groove portion 632a of the first support bracket 61 and the concave groove portion 672a of the second support bracket 62 not only improve the rigidity of the first support bracket 61 and the second support bracket 62, but also improve the rigidity of the vehicle interior. It is formed as an accommodation space for accommodating a wire harness (not shown) routed along the direction.

As shown in FIGS. 8, 12, and 13, the bracket upper surface portion 672 has two bolt insertion holes 672b opened near the front end for allowing the weld bolts 66 of the first support bracket 61 to be inserted therethrough. Two bolt insertion holes 672c that allow the weld bolts 36 of the fastening bracket 35 in the first floor cross member 30 to be inserted are formed in the first fixed portion 673a at substantially the same position in the longitudinal direction of the vehicle.

Furthermore, as shown in FIGS. 11 and 13, the bracket upper surface portion 672 has a plurality of bolt insertion holes 672d for allowing insertion of weld bolts 76 of an upright bracket 70, which will be described later. Two bolt insertion holes 672e are formed between the fixed portion 673b and allow insertion of two weld bolts 54 on the front side of the vehicle among the four weld bolts 54 of the kick-up reinforcing member 50, near the rear end. An opening is formed in the.

The front reinforcement 68 of the second support bracket 62 is joined to the inner surface of the front part of the bracket body 67, as shown in FIGS. 12 and 13. As shown in FIGS. 12 and 13, this front reinforcement 68 has a pair of left and right side surfaces 681 joined to the bracket side walls 671 of the bracket main body 67, and a bracket top surface 672 of the bracket main body 67. The upper surface portion 682 is integrally formed into a substantially gate-shaped shape when viewed from the front.

As shown in FIG. 12, in the console support bracket 60 having the above-described configuration, the rear part of the bracket side wall part 631 of the first support bracket 61 and the front part of the bracket side wall part 671 of the second support bracket 62 are connected to each other via a fastening bolt T4. At the same time, the rear part of the bracket top surface part 632 of the first support bracket 61 and the front part of the bracket top surface part 672 of the second support bracket 62 are fastened and fixed via the weld bolts 66. The first support bracket 61 and the second support bracket 62 are connected in the longitudinal direction of the vehicle.

Further, the console support bracket 60 has a bulge in which the bracket side wall portion 631 and the bracket top surface portion 632 of the first support bracket 61 are joined to the side wall portion 14a and the rear wall portion 14b of the bulge member 14, respectively. It is connected to member 14.

In addition, in the console support bracket 60, as shown in FIG. 11, the bracket side wall portion 671 of the second support bracket 62 is fastened and fixed to the side wall portion 51b of the kick-up reinforcing member 50 via a fastening bolt T3, and the second A bracket upper surface portion 672 of the support bracket 62 is fastened together with the cover member 52 to the upper surface portion 51a of the kick-up reinforcing member 50 via the weld bolt 54.

Thereby, the console support bracket 60 connects the bulging member 14 of the front floor panel 8 and the kick-up reinforcing member 50 in the longitudinal direction of the vehicle.
Further, in the console support bracket 60, the bracket upper surface portion 672 of the second support bracket 62 is fastened together with the front portion of the shift lever support bracket 5 to the fastening bracket 35 of the first floor cross member 30 via the weld bolt 36. has been done.

As shown in FIGS. 6 and 7, in the console support bracket 60, the first fixed portion 673a of the second support bracket 62 is connected to the cross member reinforcing member 33 of the first floor cross member 30 via the fastening bolt T1. The second fixed portion 673b of the second support bracket 62 is fastened and fixed to the cross member reinforcing member 43 of the second floor cross member 40 via a fastening bolt T2.

Further, as shown in FIGS. 14 and 15, the upright bracket 70 has a substantially M-shaped cross-sectional shape in the longitudinal section along the vehicle width direction, and is connected to the first floor cross member 30 and the second floor cross member. It is joined to the upper surface of the front floor panel 8 between the member 40 and the front floor panel 8 .

As shown in FIGS. 14 and 15, this upright bracket 70 has a pair of left and right inner side surfaces 71 facing each other in the vehicle width direction, and a pair of lower ends of the inner side surfaces 71 in the vicinity of the center in the vehicle width direction. A connecting substantially flat bottom portion 72; It is integrally formed with leg portions 74 that face each other with the inner side surface portion 71 interposed therebetween, and left and right side flanges 75 extending outward in the vehicle width direction from the lower ends of the leg portions 74.

Beads 71a that protrude inward in the vehicle width direction and extend in the vehicle vertical direction are formed on the left and right inner side surfaces 71 at predetermined intervals in the vehicle longitudinal direction.
Beads 74a that protrude outward in the vehicle width direction and extend in the vehicle vertical direction are formed on the left and right leg portions 74 at predetermined intervals in the vehicle longitudinal direction.
As shown in FIG. 6, a plurality of weld bolts 76 projecting upward from the vehicle are joined to the left and right upper surface portions 73 through bolt insertion holes 672d provided in the bracket upper surface portion 672 of the second support bracket 62. There is.

As shown in FIG. 14, a bracket upper surface portion 672 of the second support bracket 62 is fastened and fixed to this weld bolt 76. Of the plurality of weld bolts 76, the two weld bolts 76 on the front side of the vehicle have a bracket upper surface portion 672 of the second support bracket 62 and a rear portion of the shift lever support bracket 5, as shown in FIG. They are fastened together.

As described above, the lower body structure of the electric vehicle 1 whose driving force is the output of a rotating electric machine includes a pair of left and right side sills 7 extending in the longitudinal direction of the vehicle, and a substantially flat front floor panel disposed between the side sills 7. 8, a first floor cross member 30 that is disposed on the upper surface of the front floor panel 8 located below the front of the front seat where a passenger is seated, and connects the left and right side sills 7 in the vehicle width direction; A second floor cross member 40 is disposed on the upper surface of the front floor panel 8 located at the lower part of the rear and connects the left and right side sills 7 in the vehicle width direction, and a second floor cross member 40 is provided on the upper surface of the front floor panel 8 located at the lower rear of the vehicle. The console support bracket includes a raised kick-up part 9, a console support bracket 60 whose front part is connected to the vehicle body on the front side of the vehicle, whose rear part is connected to the kick-up part 9, and which supports the center console 3. By fixing the lower part of the center console 3 to the first floor cross member 30 and the second floor cross member 40, it is possible to suppress an increase in weight and ensure the desired frontal collision performance, as well as improve the support structure of the center console 3. The weight can be reduced.

Specifically, since a console support bracket 60 extending in the longitudinal direction of the vehicle is fixed to the first floor cross member 30 and the second floor cross member 40 that connect the left and right side sills 7 in the vehicle width direction, the electric vehicle The lower vehicle body structure of No. 1 can disperse and transmit the collision load from the side of the vehicle that acts on the first floor cross member 30 and the second floor cross member 40 in the longitudinal direction of the vehicle via the console support bracket 60. .

Furthermore, the front part of the console support bracket 60 is connected to the vehicle body on the front side of the vehicle, and the rear part of the console support bracket 60 is connected to the kick-up part 9, so that the lower body structure of the electric vehicle 1 can be easily accessed from the front of the vehicle. Collision loads can be transmitted to the rear of the vehicle via the console support bracket 60.

At this time, the lower body structure of the electric vehicle 1 can disperse and transmit the collision load from the front of the vehicle via the first floor cross member 30 and the second floor cross member 40.
Thereby, the lower body structure of the electric vehicle 1 can ensure the rigidity of the floor surface of the vehicle compartment against a collision load from the side of the vehicle and a collision load from the front of the vehicle.

In addition, the lower part of the console support bracket 60 is fixed to the first floor cross member 30 and the second floor cross member 40, so that the lower body structure of the electric vehicle 1 is fixed to the console support bracket 60 in the vertical direction of the vehicle. The length can be made shorter than when the console support bracket 60 is fixed to the front floor panel 8.

For this reason, for example, even if the length of the tunnel part in the vehicle longitudinal direction and the length of the console support bracket 60 in the vehicle longitudinal direction are approximately the same when a tunnel part is provided in the floor tunnel, the lower body of the electric vehicle 1 With this structure, the weight of the console support bracket 60 can be reduced by the length of the vehicle in the vertical direction.
Therefore, the lower body structure of the electric vehicle 1 can suppress an increase in weight, ensure desired frontal collision performance, and reduce the weight of the support structure for the center console 3.

In addition, in the longitudinal section along the vehicle width direction, the console support bracket 60 has a cross section with a pair of left and right bracket side walls 671 facing each other in the vehicle width direction, and a bracket top surface section 672 that connects the upper ends of the bracket side walls 671. By being formed into a substantially gate-shaped shape, the lower body structure of the electric vehicle 1 can form a ridge line extending substantially in a straight line in the longitudinal direction of the vehicle at the corner of the bracket side wall portion 671 and the bracket upper surface portion 672. can.

Therefore, the lower body structure of the electric vehicle 1 can efficiently transmit the collision load from the front of the vehicle to the rear of the vehicle along the ridgeline of the console support bracket 60.
As a result, the lower body structure of the electric vehicle 1 can reduce the weight of the support structure for the center console 3 and ensure stable frontal collision performance.

Further, since the bracket side wall portion 671 of the console support bracket 60 is provided with the flange portion 673 extending outward in the vehicle width direction from the lower end thereof, the lower body structure of the electric vehicle 1 has a base portion of the flange portion 673. A ridge line can be formed that extends substantially in a straight line in the longitudinal direction of the vehicle.

Therefore, the lower body structure of the electric vehicle 1 further absorbs the collision load from the front of the vehicle along the ridgeline of the corner between the bracket side wall 671 and the bracket top surface 672 and the ridgeline of the base of the flange 673. It can be efficiently transmitted to the rear of the vehicle.
As a result, the lower body structure of the electric vehicle 1 can reduce the weight of the support structure of the center console 3 and ensure more stable frontal collision performance.

In addition, the flange portion 673 of the console support bracket 60 is fastened and fixed to the first floor cross member 30 and the second floor cross member 40, so that the lower body structure of the electric vehicle 1 is fixed to the first floor cross member 30 and the second floor cross member 40. And the console support bracket 60 can be efficiently fixed to the second floor cross member 40.

Further, the first floor cross member 30 and the second floor cross member 40 are arranged so that the upper surfaces of the first floor cross member 30 and the second floor cross member 40 are located above the vehicle with respect to the upper surfaces near the ends in the vehicle width direction in a longitudinal section along the vehicle width direction. The flange portion 673 of the console support bracket 60 is provided with an enlarged upper cross-section portion 30a, 40a in which the cross-sectional shape near the center in the width direction is enlarged upwardly of the vehicle. 40a and the upper enlarged cross-section portion 40a of the second floor cross member 40, the lower body structure of the electric vehicle 1 can ensure stable side collision performance, and the support structure of the center console 3 can be improved. It can be made lighter.

Specifically, since the first floor cross member 30 and the second floor cross member 40 are provided with the upper enlarged cross-section portions 30a and 40a, respectively, the lower body structure of the electric vehicle 1 has a long cross-section section that is long in the vehicle width direction. The rigidity of the first floor cross member 30 and the second floor cross member 40 near the approximate center in the vehicle width direction can be improved. Therefore, the lower body structure of the electric vehicle 1 can improve the rigidity of the cabin floor surface against a collision load from the side of the vehicle.

Further, since the flange portion 673 of the console support bracket 60 is fastened and fixed to the upper enlarged cross-section portion 30a of the first floor cross member 30 and the upper enlarged cross-section portion 40a of the second floor cross member 40, the lower portion of the electric vehicle 1 In the vehicle body structure, the length of the console support bracket 60 in the vehicle vertical direction is longer than when the flange portion 673 of the console support bracket 60 is fastened and fixed to the member upper surface portions 31c, 41c adjacent to the upper enlarged cross-sectional portions 30a, 40a. can be shortened.
Therefore, the lower body structure of the electric vehicle 1 can ensure stable side collision performance, and the support structure of the center console 3 can be made lighter.

In addition, the front floor panel 8 includes a bulging member 14 that bulges upward in the vehicle at a position in front of the first floor cross member 30, and includes a bulging member 14 that bulges upward in the vehicle, and includes a bracket top surface 672 of the console support bracket 60 and left and right bracket side wall portions 671. is fixed to the bulging member 14 of the front floor panel 8, so that the lower body structure of the electric vehicle 1 is fixed to the bulging member 14 of the front floor panel 8. The support rigidity at the front part of the console support bracket 60 can be improved compared to the case where only the console support bracket 60 is fixed.

Further, the lower body structure of the electric vehicle 1 absorbs the collision load from the front of the vehicle at the fixed portion between the bulge member 14 of the front floor panel 8 and the bracket upper surface portion 672, and between the bulge member 14 of the front floor panel 8 and the bracket. It can be transmitted to the console support bracket 60 via a portion fixed to the side wall portion 671.
Thereby, the lower body structure of the electric vehicle 1 can efficiently transmit the collision load from the front of the vehicle to the console support bracket 60, thereby ensuring more stable frontal collision performance.

The kick-up reinforcing member 50 connects the approximate center of the kick-up portion 9 in the vehicle width direction and the front floor panel 8 in front thereof, and the kick-up reinforcing member 50 is connected to a pair of left and right side walls facing each other in the vehicle width direction. portion 51b, a front wall portion 51c that connects the front end of the side wall portion 51b, and an upper surface portion 51a that connects the upper end of the side wall portion 51b. 50 and the bracket side wall portion 671 of the console support bracket 60 is fastened and fixed to the side wall portion 51b of the kick-up reinforcing member 50, so that the lower body structure of the electric vehicle 1, for example, Compared to the case where only the bracket upper surface portion 672 of the console support bracket 60 is fixed to the up reinforcing member 50, the support rigidity at the rear of the console support bracket 60 can be improved.

Furthermore, by providing the kick-up reinforcing member 50 that connects and reinforces the kick-up portion 9 and the front floor panel 8, the lower body structure of the electric vehicle 1 can increase the support rigidity of the kick-up portion 9 against loads in the longitudinal direction of the vehicle. can be improved.
Thereby, the lower body structure of the electric vehicle 1 can efficiently transmit the collision load from the front of the vehicle to a further distance behind the vehicle via the kick-up portion 9.

In addition, when a collision load from the rear of the vehicle is applied to the lower body structure of the electric vehicle 1, the collision load from the rear of the vehicle can be transmitted to the front of the vehicle via the console support bracket 60, and the kick-up reinforcing member 50 can be distributed and transmitted to the front floor panel 8 via.

Therefore, in the lower body structure of the electric vehicle 1, for example, when a collision load is applied from the rear of the vehicle, the rear floor panel 10 connected to the rear of the vehicle of the kick-up portion 9 uses the lower end of the kick-up portion 9 as a fulcrum. It is possible to suppress deformation such as rotation toward the top of the vehicle.
Therefore, the lower body structure of the electric vehicle 1 can suppress an increase in weight and ensure both stable frontal collision performance and rear collision performance.

Further, the front floor panel 8 between the first floor cross member 30 and the second floor cross member 40 is provided with an upright bracket 70 erected upward of the vehicle, and the upright bracket 70 is connected to the front floor panel 8. The bracket top part 672 of the console support bracket 60 is fastened to the top part 73 of the standing bracket 70. By being fixed, the lower body structure of the electric vehicle 1 can improve the support rigidity of the console support bracket 60 between the first floor cross member 30 and the second floor cross member 40 by the upright bracket 70. can.

Furthermore, since the front floor panel 8 can be supported via the console support bracket 60 and the upright bracket 70, the lower body structure of the electric vehicle 1 is located between the first floor cross member 30 and the second floor cross member 40. The rigidity of the front floor panel 8 can be improved.

Therefore, the lower body structure of the electric vehicle 1 can suppress, for example, the membrane vibration of the front floor panel 8 caused by vibration of the vehicle body during driving as an excitation force, by the upright bracket 70 and the console support bracket 60. .
Thereby, the lower body structure of the electric vehicle 1 can ensure more stable frontal collision performance, and can suppress vibration noise caused by membrane vibration of the front floor panel 8.

Further, the shift lever support bracket 5 is fixed to the bracket upper surface part 672 of the console support bracket 60 and supports the shift lever 4, and the bracket upper surface part 672 of the console support bracket 60 is connected to the first floor cross member 30. and the flange portion 673 is fixed, the bracket upper surface portion 672 of the console support bracket 60 is fixed to the upright bracket 70, and the flange portion 673 of the console support bracket 60 is fixed to the second floor cross member 40. Accordingly, the lower body structure of the electric vehicle 1 can suppress the bending deformation of the console support bracket 60 and reduce the weight of the support structure of the center console 3.

Specifically, the load applied to the shift lever 4 in the longitudinal direction of the vehicle, the load in the vehicle width direction, and the load in the vertical direction of the vehicle act on the console support bracket 60 via the shift lever support bracket 5. As a result, the console support bracket 60 may be bent and deformed by the load applied to the shift lever 4, which may deteriorate the shift feeling or generate unintended vibration noise, for example.

Therefore, by fixing the bracket upper surface part 672 and the flange part 673 of the console support bracket 60 to the first floor cross member 30, the lower body structure of the electric vehicle 1 has a high rigidity that is relatively close to the shift lever 4. The console support bracket 60 can be supported at a suitable location.

Furthermore, by fixing the bracket upper surface portion 672 of the console support bracket 60 to the upright bracket 70, the lower body structure of the electric vehicle 1 can be configured such that the first floor cross member 30, which is relatively close to the shift lever 4, and the upright bracket 70, it is possible to improve the support rigidity of the console support bracket 60 and to suppress bending deformation in the bracket upper surface portion 672 of the console support bracket 60.

On the other hand, by fixing the flange portion 673 of the console support bracket 60 to the second floor cross member 40, the lower body structure of the electric vehicle 1 can absorb the load acting on the console support bracket 60 from the shift lever 4. The transmission can be distributed to the upright bracket 70 and the second floor cross member 40.

At this time, since the load acting on the console support bracket 60 from the shift lever 4 is smaller toward the rear of the vehicle, the lower body structure of the electric vehicle 1 is fixed to the upright bracket 70 without impairing the supporting rigidity of the console support bracket 60. and the number of fixing parts for the second floor cross member 40 can be smaller than the number of fixing parts for the first floor cross member 30.

As a result, the lower body structure of the electric vehicle 1 can reduce the number of man-hours required for assembling the console support bracket 60 to the first floor cross member 30, the upright bracket 70, and the second floor cross member 40, and Weight increase due to increased number of fixing points can be suppressed.
Therefore, the lower body structure of the electric vehicle 1 can suppress the bending deformation of the console support bracket 60 and reduce the weight of the support structure of the center console 3.

In the correspondence between the configuration of this invention and the above-described embodiments,
The floor panel of this invention corresponds to the front floor panel 8 of the embodiment,
Similarly below,
The bulging portion corresponds to the bulging member 14,
The kick-up reinforcement part corresponds to the kick-up reinforcement member 50, but
This invention is not limited to the configuration of the above-described embodiments, and can be implemented in many other embodiments.

For example, in the above-described embodiment, the separately constructed bulging member 14 is joined to the front part of the front floor panel 8, but the present invention is not limited to this. The bulging member 14 may be integrally formed with the front floor panel 8 by bulging the substantially central portion upward of the vehicle.

Further, although the kick-up reinforcing member 50 connecting the rear part of the front floor panel 8 and the kick-up portion 9 is configured separately, the kick-up reinforcing member 50 is not limited to this. It may be formed integrally with the portion 9.

Furthermore, although the first floor cross member 30 is composed of the central member member 31, the pair of left and right end member members 32, and the cross member reinforcing member 33, the present invention is not limited thereto. The first floor cross member may be integrally formed with the member member 32. Alternatively, a first floor cross member in which the central member member 31 and the cross member reinforcing member 33 are integrally formed, or the central member member 31, the pair of left and right end member members 32, and the cross member reinforcing member 33 are integrally formed. You can also use it as

Further, the second floor cross member 40 is configured with the center member member 41, the pair of left and right end member members 42, and the cross member reinforcing member 43, but the present invention is not limited to this. The second floor cross member may be integrally formed with the end member member 42. Alternatively, a second floor cross member in which the central member member 41 and the cross member reinforcing member 43 are integrally formed, or the central member member 41, the pair of left and right end member members 42, and the cross member reinforcing member 43 are integrally formed. You can also use it as

In addition, although the console support bracket 60 is configured such that the first support bracket 61 and the second support bracket 62 are fastened and fixed, the console support bracket 60 is not limited to this. It may also be used as a support bracket.
Further, although the console support bracket 60 is configured with the first support bracket 61 and the second support bracket 62, the present invention is not limited to this. You can also use it as

1...Electric vehicle 3...Center console 5...Shift lever support bracket 7...Side sill 8...Front floor panel 9...Kick-up portion 14...Bulging member 18...Front seat 30...First floor cross member 30a...Upper enlarged cross section 40 ...Second floor cross member 40a...Upper enlarged cross section 50...Kick-up reinforcing member 51a...Top surface part 51b...Side wall part 51c...Front wall part 60...Console support bracket 70...Erection bracket 73...Top surface part 74...Leg part 671 …Bracket side wall portion 672…Bracket top surface portion 673…Flange portion

Claims (6)

A lower body structure of an electric vehicle whose driving force is the output of a rotating electric machine,
A pair of left and right side sills that extend in the longitudinal direction of the vehicle,
a substantially flat floor panel disposed between the side sills;
a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated, and connecting the left and right side sills in the vehicle width direction;
a second floor cross member that is disposed on the upper surface of the floor panel located below the rear of the front seat and connects the left and right side sills in the vehicle width direction;
a kick-up portion stepped up from the rear end of the floor panel toward the top of the vehicle;
A console support bracket that has a front portion connected to the vehicle body on the front side of the vehicle, a rear portion connected to the kick-up portion, and supports a center console,
The console support bracket is
In a longitudinal section along the vehicle width direction, a pair of left and right bracket side walls facing each other in the vehicle width direction and a bracket top surface portion connecting the upper ends of the bracket side walls are formed into a substantially gate-shaped cross section;
The bracket side wall portion of the console support bracket is
It has a flange part extending outward in the vehicle width direction from its lower end,
The flange portion of the console support bracket is
A lower vehicle body structure of an electric vehicle fastened and fixed to the first floor cross member and the second floor cross member. A lower body structure of an electric vehicle whose driving force is the output of a rotating electric machine,
A pair of left and right side sills that extend in the longitudinal direction of the vehicle,
a substantially flat floor panel disposed between the side sills;
a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated, and connecting the left and right side sills in the vehicle width direction;
a second floor cross member that is disposed on the upper surface of the floor panel located below the rear of the front seat and connects the left and right side sills in the vehicle width direction;
a kick-up portion stepped up from the rear end of the floor panel toward the top of the vehicle;
A console support whose front part is connected to the vehicle body on the front side of the vehicle, whose rear part is connected to the kick-up part, whose lower part is fixed to the first floor cross member and the second floor cross member, and which supports the center console. bracket and
a kick-up reinforcing portion connecting substantially the center of the kick-up portion in the vehicle width direction and the floor panel in front of the kick-up portion;
The console support bracket is
In a longitudinal section along the vehicle width direction, a pair of left and right bracket side walls facing each other in the vehicle width direction and a bracket top surface portion connecting the upper ends of the bracket side walls are formed into a substantially gate-shaped cross section;
The kick-up reinforcement part is
A pair of left and right side walls facing each other in the vehicle width direction;
a front wall portion connecting the front ends of the side wall portions;
integrally formed with an upper surface portion connecting the upper ends of the side wall portions;
The bracket upper surface portion of the console support bracket is
fastened and fixed to the upper surface portion of the kick-up reinforcing portion;
The bracket side wall portion of the console support bracket is
A lower vehicle body structure of an electric vehicle fastened and fixed to the side wall portion of the kick-up reinforcing portion. A lower body structure of an electric vehicle whose driving force is the output of a rotating electric machine,
A pair of left and right side sills that extend in the longitudinal direction of the vehicle,
a substantially flat floor panel disposed between the side sills;
a first floor cross member disposed on the upper surface of the floor panel located below the front of the front seat where a passenger is seated, and connecting the left and right side sills in the vehicle width direction;
a second floor cross member that is disposed on the upper surface of the floor panel located below the rear of the front seat and connects the left and right side sills in the vehicle width direction;
a kick-up portion stepped up from the rear end of the floor panel toward the top of the vehicle;
A console support whose front part is connected to the vehicle body on the front side of the vehicle, whose rear part is connected to the kick-up part, whose lower part is fixed to the first floor cross member and the second floor cross member, and which supports the center console. bracket and
an erected bracket erected upwardly of the vehicle on the floor panel between the first floor cross member and the second floor cross member;
The console support bracket is
In a longitudinal section along the vehicle width direction, a pair of left and right bracket side walls facing each other in the vehicle width direction and a bracket top surface portion connecting the upper ends of the bracket side walls are formed into a substantially gate-shaped cross section;
The upright bracket is
a pair of left and right legs fixed to the floor panel;
and an upper surface portion connecting the upper ends of the leg portions,
The bracket upper surface portion of the console support bracket is
A lower body structure of an electric vehicle fastened and fixed to the upper surface portion of the upright bracket. The first floor cross member and the second floor cross member,
In a longitudinal section along the vehicle width direction, an upwardly expanded cross section in which the cross-sectional shape near the center in the vehicle width direction is expanded upwards of the vehicle so that the upper surface is located above the vehicle relative to the upper surface near the end in the vehicle width direction. each with a
The flange portion of the console support bracket is
The lower vehicle body structure of an electric vehicle according to claim 1, wherein the lower body structure of an electric vehicle is fastened and fixed to the enlarged upper cross section of the first floor cross member and the enlarged upper cross section of the second floor cross member. The floor panel is
A bulge portion that bulges upwardly of the vehicle is provided in front of the vehicle relative to the first floor cross member,
The bracket upper surface part of the console support bracket and the left and right bracket side wall parts,
The lower vehicle body structure for an electric vehicle according to any one of claims 1 to 4, which is fixed to the bulge portion of the floor panel. a shift lever support bracket fixed to the upper surface of the bracket of the console support bracket and supporting a shift lever;
A flange portion extending outward in the vehicle width direction from the bracket upper surface portion of the console support bracket and the lower end of the bracket side wall portion is fixed to the first floor cross member;
the bracket upper surface portion of the console support bracket is fixed to the upright bracket;
The lower vehicle body structure for an electric vehicle according to claim 3, wherein the flange portion of the console support bracket is fixed to the second floor cross member.

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