KR102166594B1 - Vehicle body for vehicle - Google Patents

Abstract

Disclosed is an invention for a vehicle body for an automobile. The vehicle body for a vehicle of the present invention includes: a bottom floor portion disposed under the vehicle body; Side seal portions disposed on both sides of the bottom floor portion in the width direction along the front and rear directions of the bottom floor portion to reinforce the rigidity of the bottom floor portion; And a front side member connected to the front side of the side seal portion, each formed to have a width narrower than the distance between the side seal portions, and disposed in an inclined manner so as to be gathered toward a central portion in the width direction of the vehicle body.

Description

Vehicle body {VEHICLE BODY FOR VEHICLE}

The present invention relates to a vehicle body for a vehicle, and more particularly, to a vehicle body for a vehicle capable of securing a steering space for a wheel and improving the shock absorption performance at the front side of the vehicle body.

In general, electric vehicles travel using the driving force of the motor unit. In electric vehicles, a battery pack is installed to supply electricity to the motor. Battery packs are installed on the bottom floor of electric vehicles. The battery pack is pre-charged with electric energy.

The background technology of the present invention is disclosed in Korean Patent Publication No. 1527047 (registered on June 02, 2015, title of the invention: modular structure of a rear wheel suspension).

According to an embodiment of the present invention, there is provided a vehicle body for a vehicle capable of securing a steering space of a wheel and improving the shock absorption performance at the front side of the vehicle body.

A vehicle body for a vehicle according to the present invention includes: a bottom floor portion disposed under the vehicle body; Side seal portions disposed on both sides of the bottom floor portion in the width direction along the front and rear directions of the bottom floor portion to reinforce the rigidity of the bottom floor portion; And a front side member connected to the front side of the side seal portion, each formed to have a width narrower than the width of the side seal portion, and disposed in an inclined manner so as to be gathered toward a central portion in the width direction of the vehicle body.

The front side member may include a front side extension portion extending from the side seal portion toward a central portion in the width direction of the vehicle body; And a front side inclined portion extending obliquely from the front side extension portion to a front side of the vehicle body.

The front side member may further include a front cross portion disposed along the width direction of the vehicle body to connect the front side inclined portion.

The distance between the front end portions of the front side inclined portion may be 50% or less of the length in the width direction of the vehicle body.

The width of the front side extension may be wider than the width of the front side slope.

The width of the front side inclined portion may be gradually increased from the front end to the rear side.

The bottom floor unit includes a mount panel unit on which a battery pack is mounted and coupled to the side seal unit; And a floor panel part disposed above the battery pack and coupled to the side seal part.

A side beam mounted on an edge portion of the mount panel portion and coupled to the mount panel portion and the floor panel portion; And a reinforcing beam disposed inside the side beam to support an inner surface of the side beam.

The side seal portion may further include a fastening member installed to penetrate the edge portion of the mount panel portion, the side beam, and the reinforcing beam.

The reinforcing beam is formed in a "c" shape, and both ends of the reinforcing beam support an inner wall surface of the side beam, and a central side of the reinforcement beam may support an outer wall surface of the side beam.

The battery pack includes: a first battery pack portion arranged along a width direction of the vehicle body at a rear side of the bottom floor portion; A second battery pack part arranged along the front-rear direction of the bottom floor part in a center portion in the width direction of the bottom floor part; And a third battery pack part disposed in front of the first battery pack part on the bottom floor part and arranged in parallel with the first battery pack part.

The third battery pack part may be stacked higher than the second battery pack part, and the first battery pack part may be stacked higher than the third battery pack part.

According to the present invention, since the front side members are arranged so as to be gathered toward the center side in the width direction of the vehicle body, the steering space of the wheels can be formed in the vehicle body.

In addition, according to the present invention, since the front side member is formed to be inclined to be narrower toward the front side of the vehicle body, the front side member can support the impact load of the vehicle in a trapezoidal shape during an offset collision and a frontal collision of the vehicle.

In addition, according to the present invention, since the front side member is formed to be inclined to become narrower toward the front side of the vehicle body, the front side member is sequentially corrugated along the longitudinal direction during a frontal collision and an offset collision of the vehicle, leading to a collapse phenomenon. I can. Therefore, it is possible to maximize the absorption performance of the impact load in the front side member during a frontal collision and an offset collision of the vehicle.

In addition, according to the present invention, since the front side member is formed to be inclined to become narrower toward the front side of the vehicle body, the collision object slides along the side portion of the front side member during a small overlap collision of the vehicle, so that the impact load of the vehicle body is significantly reduced. I can make it. In addition, since it is possible to prevent the impact load caused by the collision object from being applied to the front end of the front side member, it is possible to prevent the front side of the vehicle body from being pushed into the interior space of the vehicle body even in the case of a small overlap collision, which is the most severe test.

Further, according to the present invention, since the first battery pack unit, the second battery pack unit, and the third battery pack unit are disposed using a space available in the vehicle body, the installation capacity of the battery pack can be remarkably increased. In addition, as the installation capacity of the battery pack increases, the driving distance of the electric vehicle may be extended.

1 is a plan view showing a vehicle body for a vehicle according to an embodiment of the present invention.
2 is an enlarged view showing a transmission path of an impact load during a frontal collision of a vehicle body for a vehicle according to an embodiment of the present invention.
3 is an enlarged view illustrating a transmission path of an impact load during an offset collision of a vehicle body for a vehicle according to an embodiment of the present invention.
4 is an enlarged view showing a transmission path of an impact load during a small overlap collision in a vehicle body according to an embodiment of the present invention.
5 is a perspective view showing a bottom floor portion and a side seal portion of a vehicle body for a vehicle according to an embodiment of the present invention.
6 is a cross-sectional view illustrating a side seal of a vehicle body for a vehicle according to an embodiment of the present invention.
7 is a perspective view showing a stacked state of a battery pack of a vehicle body according to an exemplary embodiment of the present invention.

Hereinafter, an embodiment of a vehicle body for a vehicle according to the present invention will be described with reference to the accompanying drawings. In the process of describing a vehicle body for a vehicle, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

1 is a plan view showing a vehicle body for a vehicle according to an embodiment of the present invention, and FIG. 2 is an enlarged view showing a transmission path of an impact load during a frontal collision of a vehicle body for a vehicle according to an embodiment of the present invention, 3 is an enlarged view showing a transmission path of an impact load during an offset collision of a vehicle body for a vehicle according to an embodiment of the present invention, and FIG. 4 is an impact during a small overlap collision in a vehicle body for a vehicle according to an embodiment of the present invention. It is an enlarged view showing the transmission path of the load, Figure 5 is a perspective view showing a bottom floor portion and a side seal portion of a vehicle body according to an embodiment of the present invention, Figure 6 is a vehicle according to an embodiment of the present invention A cross-sectional view showing a side seal portion of a vehicle body for use, and FIG. 7 is a perspective view showing a stacked state of a battery pack of a vehicle body for a vehicle according to an embodiment of the present invention.

1 to 7, a vehicle body 100 for a vehicle according to an embodiment of the present invention includes a bottom floor unit 110, a side seal unit 120, and a front side member 130.

The bottom floor unit 110 is disposed under the vehicle body 100, and a battery pack 140 is embedded in the bottom floor unit 110. The bottom floor unit 110 is installed to shield the lower portion of the vehicle body 100. Electric energy is charged in the battery pack 140.

Side sills 120 are disposed along the front and rear directions of the bottom floor unit 110 on both edge portions 113a in the width direction of the bottom floor unit 110 to reinforce the rigidity of the bottom floor unit 110 do. The side seals 120 are disposed under both doors (not shown) of the vehicle. The side seal unit 120 may be coupled to both sides of the bottom floor unit 110 by fastening members 129. Since the side seal portion 120 is disposed along the front and rear directions of the bottom floor portion 110 on both sides of the bottom floor portion 110, even if an impact load transmitted from the front side of the vehicle body 100 is transmitted to the side seal portion 120 It is possible to prevent the side seal part 120 from being substantially contracted in the longitudinal direction. Therefore, it is possible to suppress distortion or deformation toward the interior space (residential space) side of the vehicle body 100 when a vehicle crashes.

Since the side seal portions 120 are disposed on both sides of the bottom floor portion 110, the lateral rigidity of the vehicle body 100 can be increased. Accordingly, the battery pack 140 may be protected by the side seal unit 120 in the event of a side collision of the vehicle.

The front side members 130 are connected to the front side of the side seal unit 120, respectively, are formed to have a width narrower than the distance of the side seal unit 120, and are arranged to be inclined so as to be gathered toward the central side in the width direction of the vehicle body 100. In this case, the front side member 130 is disposed in a trapezoidal shape that is collected toward the center of the vehicle body 100 in the width direction toward the front side. The front side member 130 may be connected to the front side of the side seal unit 120 by welding.

In electric vehicles (not shown), due to the characteristics of the motor unit (not shown), the maximum driving torque of the motor unit is maintained high even if the rotational speed (RPM) of the motor unit is increased when the motor unit is initially driven. In addition, since the battery pack 140 is installed on the vehicle body 100 of the electric vehicle, the weight of the vehicle is increased compared to the conventional internal combustion engine vehicle. Therefore, in the case of an electric vehicle, a large frictional force is required in order to overcome the inertial force when starting and stopping compared to a conventional internal combustion engine vehicle. For this reason, electric vehicles can have wider and larger tires than conventional internal combustion engine tires. When wide and large tires are installed in the electric vehicle, the steering space of the wheel 20 (moving space of the wheel 20) must be increased.

In addition, the volume of the motor unit and the converter (not shown) in the electric vehicle occupies approximately 30% smaller than the volume of the engine room in the internal combustion engine vehicle. Accordingly, in the electric vehicle, the front side member 130 may be designed to move a predetermined distance toward the central portion in the width direction of the vehicle body 100. For example, the front side member 130 for an electric vehicle may be moved approximately 50-300mm toward the center of the vehicle body 100 in the width direction. Since the front side member 130 is moved toward the center of the vehicle body 100 in the width direction, a steering space of the wheel 20 on which the wide tire is installed can be sufficiently secured.

According to an embodiment of the present invention, since the front side member 130 is disposed to be inclined so as to be gathered toward the center side in the width direction of the vehicle body 100, the steering space (moving space of the wheel 20) of the wheel 20 in an electric vehicle is Can be formed larger. Since the steering space of the wheel 20 is sufficiently increased, it is possible to prevent the wheel 20 from interfering with the front side member 130 and increase the driving convenience of the vehicle. In addition, since the steering space of the wheel 20 is sufficiently secured, a wide tire or a large tire can be installed in an electric vehicle.

In addition, since the front side members 130 on both sides are formed to be inclined toward the center of the vehicle body 100 in the width direction, the front side members 130 may be arranged in a trapezoidal shape that becomes narrower toward the front side of the vehicle body 100.

Meanwhile, various types of crash tests are required as the safety standards of vehicles are strengthened. Collision tests include frontal collision test, offset collision test and small overlap collision test. The frontal collision test is a test in which a vehicle collides with a frontal collision barrier B1 having a length L in the width direction of the vehicle body 100 at a speed of approximately 64Km/h. The offset collision test is a test in which a vehicle collides with an offset collision barrier B2 of approximately 40% (0.40L) of the width direction length L of the vehicle body 100 at a speed of approximately 64 km/h. The small overlap collision test is a test in which an offset pole B3 of approximately 25% (0.25L) of the width direction length L of the vehicle body 100 is collided at a speed of approximately 64 km/h. In this crash test, the severity of the crash test is increased in the order of the smallest width of the barrier, that is, in the order of the frontal crash test, the offset crash test and the small offset crash test.

Since the front side member 130 supports the front of the vehicle body in a trapezoidal shape, an impact load is applied almost uniformly to both sides of the front side member 130 when the vehicle is in a frontal collision (see FIG. 2 ). Accordingly, when the vehicle collides in the front, the front side member 130 may induce a stable collapse in which the front side member 130 is sequentially corrugated along the longitudinal direction. In addition, it is possible to maximize the absorbing performance of the impact load in the front side member 130 when the vehicle collides in the front. Furthermore, since it is possible to suppress the front side of the vehicle body 100 from being pushed into the interior space of the vehicle body 100 during a frontal collision of the vehicle, safety of the occupant can be further secured.

In addition, the impact load applied to one side of the front side member 130 during an offset collision of the vehicle is increased compared to the impact load applied to the other side (see FIG. 3). At this time, since the front side inclined portion 13 on the other side supports the front side inclined portion 133 on one side in a state inclined toward the center, the rigidity of the front side member 130 can be further increased. Accordingly, the shock load applied to the front side member 130 during an offset collision of the vehicle may be absorbed while being distributed to both sides of the front side member 130. Accordingly, it is possible to suppress the front side of the vehicle body 100 from being pushed into the interior space of the vehicle body 100 during an offset collision of the vehicle, thereby further securing the safety of the passenger.

In addition, since the overlap pole B3 avoids the front end portion 133a of the front side member 130 during a small overlap collision of the vehicle and then slides along the side portion of the front side member 130 (slid by), the vehicle body ( 100) can significantly reduce the impact load (see Fig. 4). In addition, since it is possible to prevent the impact load caused by the overlap pole (B3) from being applied to the front end portion (133a) of the front side member 130, the front side of the vehicle body 100 is the vehicle body even in the case of a small overlap collision, which is the most severe test. It can prevent from being pushed into the indoor space of (100).

The front side member 130 includes a front side extension 131 and a front side slope 133.

The front side extension part 131 extends inclined or rounded from the side seal part 120 toward the central portion in the width direction of the vehicle body 100. Since the front side extension 131 extends inclined or rounded, the transmission direction of the impact load in the front side extension 131 is changed to be inclined or rounded. In addition, the front side extension 131 extending to be inclined or rounded may be elastically deformed. Therefore, after the shock load is buffered in the front side extension part 131, it is distributed to the side seal part 120 and the bottom floor part 110, so that the vehicle body 100 is damaged or damaged to invade the interior space (the passenger's boarding space). It can mitigate deformation.

In addition, the front side extension 131 is formed to be inclined upward toward the front side of the vehicle body 100. Since the front side extension part 131 is formed to be inclined upward, even if the drive shaft of the wheel 20 increases as the diameter of the wheel 20 increases, the drive shaft of the wheel 20 is sufficiently installed on the front side extension part 131 Can be.

The front side inclined portion 133 is formed to be inclined toward the front side of the vehicle body 100 from the front side extension portion 131. A bumper beam 137 is installed at a front end of the front side inclined portion 133.

The front side inclined portion 133 is disposed in a form inclined toward the front side of the vehicle. Therefore, during a frontal collision and an offset collision of the vehicle, the front side inclined portion 133 supports the front side of the vehicle body 100 in a trapezoidal shape, so that the front side inclined portion 133 is sequentially corrugated along the length direction. It can lead to stable collapse. Accordingly, it is possible to maximize the absorption performance of the impact load at the front side inclined portion 133 during a frontal collision and an offset collision of the vehicle.

The front side member 130 further includes a front cross portion 135 disposed along the width direction of the vehicle body 100 to connect the front side inclined portion 133. The front cross portion 135 is disposed along the width direction of the vehicle body 100 to connect the front side inclined portion 133. The front cross part 135 is disposed between the bumper beam 137 and the end of the bottom floor part 110.

Since the front cross portion 135 connects the front side inclined portions 133 on both sides, the front side of the vehicle body 100 is formed in an approximately "A" shape. Accordingly, an impact load applied to the front side inclined portion 133 on one side during a frontal collision and offset collision of the vehicle may be transmitted to the front side inclined portion 133 on the other side through the front cross portion 135. That is, even in the case of an offset collision of the vehicle, since the impact load is distributed to the front side inclined portions 133 on both sides, the stability of the vehicle can be further secured.

In addition, since the front cross portion 135 supports the front side inclined portions 133 on both sides, the front cross portion 135 is divided into the front side inclined portions 133 on both sides of the vehicle during a frontal collision and an offset collision. Can be prevented. Accordingly, the front rigidity of the vehicle body 100 may be further reinforced.

The distance between the front end portions 133a of the front side inclined portions 133 is formed to be 50% or less of the length L in the width direction of the vehicle body 100 (see FIG. 4). Therefore, in the event of a small overlap collision of the vehicle, the overlap pole B3 is moved while sliding along the side portion of the front side slope portion 133 after avoiding the front end portion 133a of the front side slope portion 130, so that the vehicle body 100 The impact load of can be significantly reduced. In addition, since it is possible to prevent the impact load from the overlap pole (B3) from being applied to the front end portion (133a) of the front side inclined portion 133, the front side of the vehicle body 100 is also in the case of a small overlap collision, which is the most severe test. It is possible to prevent the vehicle body 100 from being pushed into the interior space.

In addition, the width t3 of the front side extension portion 131 is formed to be wider than the widths t1 and t2 of the front side inclined portion 133. The widths t1 and t2 of the front side inclined portion 133 are gradually wider from the front end portion 133a to the rear side (t1<t2). Therefore, the stiffness of the front side inclined portion 133 gradually increases from the front end portion 133a to the rear side, so that the front side inclined portion 133 collapses sequentially from the front side to the rear side during a front collision and an offset collision of the vehicle. It can be crushed. Since the front side inclined portion 133 is sequentially crushed in the longitudinal direction, the shock absorption performance in the front side inclined portion 133 can be significantly increased. In addition, since the stiffness of the front side inclined portion 133 increases toward the rear side, the overlap pole B3 may bounce outward from the front side inclined portion 133 when a vehicle has a small overlap collision. Therefore, the impact load applied to the vehicle can be further reduced.

The bottom floor unit 110 includes a mount panel unit 111 and a floor panel unit 113.

The battery pack 140 is mounted on the mount panel part 111, and the mount panel part 111 is coupled to the side seal part 120. The mount panel part 111 forms a lower surface of the bottom floor part 110. The floor panel unit 113 is disposed above the battery pack 140 and is coupled to the side seal unit 120. Since the mount panel portion 111 and the floor panel portion 113 are coupled to the side seal portion 120, the impact load transmitted to the side seal portion 120 is distributed to the mount panel portion 111 and the floor panel portion 113. I can. Accordingly, it is possible to prevent the side seal part 120 from being reduced in the longitudinal direction by the impact load.

The side seal part 120 includes a side beam 121 and a reinforcing beam 126.

The side beams 121 are seated on both edge portions 113a of the mount panel portion 111 and are coupled to the mount panel portion 111 and the floor panel portion 113. The cross section of the side beam 121 may be formed in a square shape. Since the side beam 121 is seated on the edge portion 113a of the mount panel portion 111, the side beam 121 may be supported by the mount panel portion 111. Accordingly, since the contact area between the side beam 121 and the mount panel 111 is increased, the rigidity of the vehicle body 100 for a vehicle may be further increased.

The reinforcing beam 126 is disposed inside the side beam 121 to support the inner side of the side beam 121. The reinforcing beam 126 is disposed elongated along the length direction of the side beam 121. Since the reinforcing beam 126 is installed inside the side beam 121 to support the inner side of the side beam 121, the stiffness in the width direction of the vehicle body 100 may be reinforced. In addition, in order to reinforce the rigidity of the bottom floor unit 120, a mounting member may not be installed along the longitudinal direction of the bottom floor unit 110. In addition, as the installation of the mounting member is omitted, the installation space of the battery pack 140 may be increased.

The side seal part 120 further includes a fastening member 129 installed to pass through the edge part 113a, the side beam 121 and the reinforcing beam 126 of the mount panel part 111. A plurality of fastening members 129 are disposed along the longitudinal direction of the side seal part 120. Since the fastening member 129 couples the edge portion 113a, the side beam 121 and the reinforcing beam 126 of the mount panel portion 111 together, the rigidity of the vehicle body is further reinforced, and the side seal portion 120 The impact load transmitted to the can be distributed more widely.

The side beam 121 includes an inner side beam 122 and an outer side beam 123.

The inner side beam 122 is seated on the edge portion 113a of the mount panel portion 111 and has a cross section of a "c" shape. The outer side beam 123 is disposed outside the inner side beam 122 and has a cross section of a "c" shape so as to cover the opening of the inner side beam 122 and is welded to the inner side beam 122. A welding flange portion 124 is formed in the opening of the inner side beam 122 and the opening of the outer side beam 123 to secure welding convenience. The welding flange portion 124 is disposed on the upper side and the lower side of the side beam 121. Since the inner side beam 122 and the outer side beam 123 are welded in a butted state, and a reinforcing beam 126 is installed to support the inner side beam 122 and the outer side beam 123, the side The rigidity of the beam 121 may be further improved.

The reinforcing beam 126 is formed in a "c" shape, both ends of the reinforcing beam 126 support the inner wall surface of the side beam 121, and the central side of the reinforcing beam 126 is the outer wall surface of the side beam 121 Support. Close contact ribs 127 are formed at both ends of the opening side of the reinforcing beam 126 to be in close contact with the inner wall surface of the side beam 121. The center side of the contact rib 127 and the side beam 121 may be fixed to the side beam 121 by welding or fastening bolts. Since the closed center side of the reinforcing beam 126 supports the outer wall surface of the side beam 121, the vehicle body 100 may increase the stiffness in the width direction when the vehicle body 100 collides with the side.

The battery pack 140 includes a first battery pack part 141, a second battery pack part 142, and a third battery pack part 143.

The first battery pack part 141 is arranged along the width direction of the vehicle body 100 on the rear side of the bottom floor part 110. The second battery pack part 142 is arranged along the front-rear direction of the bottom floor part 110 in the center of the width direction of the bottom floor part 110. The third battery pack unit 143 is disposed on the front side of the first battery pack unit 141 in the bottom floor unit 110 and is arranged in parallel with the bottom floor unit 110. The third battery pack unit 143 is stacked higher than the second battery pack unit 142, and the first battery pack unit 141 is stacked higher than the third battery pack unit 143. The first battery pack part 141, the second battery pack part 142, and the third battery pack part 143 may be formed by stacking a plurality of layers of batteries. A fourth battery having a height lower than that of the second battery pack unit 142 in the bottom floor unit 110 where the first battery pack unit 141, the second battery pack unit 142, and the third battery pack unit 143 are not installed. The pack part 144 is installed.

The first battery pack part 141 is disposed in the upper space of the fuel tank having the most space. The second battery pack unit 142 is disposed to avoid a portion where the passenger's foot is not located. The second battery pack part 142 is disposed using a tunnel part (not shown), which is a space through which a power transmission shaft (not shown) passes. The third battery pack part 143 is disposed in a free space below the front seat. A portion of the bottom floor unit 110 in which the first battery pack unit 141, the second battery pack unit 142, and the third battery pack unit 143 are not installed is a part where the passenger's foot is located. Since the first battery pack part 141, the second battery pack part 142, and the third battery pack part 143 are disposed using the space available in the vehicle body 100, the installation capacity of the battery pack 140 will be significantly increased. I can. In addition, as the installation capacity of the battery pack 140 increases, the driving distance of the electric vehicle may be extended.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand.

Therefore, the true technical protection scope of the present invention should be determined by the claims.

100: body 110: bottom floor
111: mount panel portion 113: floor panel portion
113a: edge portion 120: side seal portion
121: side beam 122: inner side beam
123: outer side beam 124: welding flange portion
126: reinforcing beam 127: contact rib
129: fastening member 130: front side member
131: front side extension 133: front side slope
135: front cross part 137: bumper beam
140: battery pack 141: first battery pack unit
142: second battery pack unit 143: third battery pack unit
144: fourth battery pack part B1: frontal collision barrier
B2: Offset barrier B3: Offset pole

Claims (12)

A bottom floor portion disposed under the vehicle body;
Side seal portions disposed on both sides of the bottom floor portion in the width direction along the front and rear directions of the bottom floor portion to reinforce the rigidity of the bottom floor portion; And
A front side member connected to the front side of the side seal portion, each formed to have a width narrower than the distance between the side seal portions, and disposed at an inclined manner so as to be gathered toward a central side in the width direction of the vehicle body
The bottom floor part,
A mount panel portion on which a battery pack is mounted and coupled to the side seal portion; And
A floor panel part disposed on the upper side of the battery pack and coupled to the side seal part,
The side seal portion,
A side beam mounted on an edge portion of the mount panel portion and coupled to the mount panel portion and the floor panel portion; And
It includes a reinforcing beam disposed inside the side beam to support the inner side of the side beam,
The side seal portion further includes a fastening member installed to penetrate the edge portion of the mount panel portion, the side beam and the reinforcing beam,
The reinforcing beam is formed in a "c" shape,
Both ends of the reinforcing beam support the inner wall surface of the side beam,
A vehicle body for a vehicle, characterized in that the central side of the reinforcing beam supports an outer wall surface of the side beam.
The method of claim 1,
The front side member,
A front side extension portion extending from the side seal portion toward a central portion in the width direction of the vehicle body; And
And a front side inclined portion extending obliquely from the front side extension portion to a front side of the vehicle body.
The method of claim 2,
The front side member,
And a front cross portion disposed along a width direction of the vehicle body to connect the front side inclined portion.
The method of claim 3,
A vehicle body for a vehicle, characterized in that the distance between the front ends of the front side inclined portions is formed to be less than 50% of the length in the width direction of the vehicle body.
The method of claim 3,
The vehicle body for a vehicle, characterized in that the width of the front side extension is formed to be wider than the width of the front side inclined portion.
The method of claim 5,
A vehicle body for a vehicle, characterized in that the width of the front side inclined portion is formed gradually wider from the front end to the rear side.
delete delete delete delete The method of claim 1,
The battery pack,
A first battery pack part arranged along the width direction of the vehicle body on a rear side of the bottom floor part;
A second battery pack part arranged along the front-rear direction of the bottom floor part in a center portion in the width direction of the bottom floor part; And
And a third battery pack part disposed in front of the first battery pack part on the bottom floor part and arranged in parallel with the first battery pack part.
The method of claim 11,
The third battery pack part is stacked higher than the second battery pack part,
The vehicle body for a vehicle, characterized in that the first battery pack portion is stacked higher than the third battery pack portion.

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