Vehicle body structure

The vehicle body structure with a fender shield and reinforcing elements addresses interference issues by promoting controlled deformation, enhancing the protection of in-vehicle devices through mountain-fold deformation patterns.

JP7878551B2Active Publication Date: 2026-06-23MITSUBISHI MOTORS CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MITSUBISHI MOTORS CORP
Filing Date
2023-02-27
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Conventional vehicle body structures fail to adequately protect in-vehicle devices from deformation-induced interference with other components due to external forces, leading to potential damage or malfunction.

Method used

A vehicle body structure incorporating a fender shield with specific surface portions and reinforcing elements that promote mountain-fold deformation, enhancing the protection of on-board devices by minimizing interference during deformation.

Benefits of technology

The fender shield structure effectively suppresses interference between on-board equipment and the vehicle body, improving the protective performance of in-vehicle devices by promoting controlled deformation patterns that maintain device stability and positioning.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The disclosed vehicle body structure comprises a fender shield (10) which is provided on the inner side of a fender panel of a vehicle and which forms a part of a bottom surface in a compartment (1) where in-vehicle devices (11, 12) are to be housed. The fender shield (10) comprises: a first face portion (21) which is formed in a shape of a surface sloping down toward a front side and on which the first in-vehicle device (11) is disposed; a second face portion (22) formed in a flat strip shape extending in a vehicle width direction on a rear side of the first face portion (21); a ridgeline portion (41) including wall portions (31, 32) formed by bulging a plate surface out in the plate thickness direction on a rear side of the second face portion (22); and a third face portion (23) on which the second in-vehicle device (12) is disposed on the rear side of the second face portion (22) and on a substantially lateral side of the ridgeline portion (41).
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Description

Technical Field

[0001] This invention relates to a vehicle body structure provided with a fender shield.

Background Art

[0002] Conventionally, regarding the mounting structure of in-vehicle devices to a vehicle, a structure for mounting an in-vehicle device (such as a fuel filter) to an accommodation chamber (engine room, motor room, power unit room, etc.) of a vehicle using mounting brackets is known. For example, a structure is known in which a bracket is fixed to a dash panel or a frame that constitutes a part of the accommodation chamber, and an in-vehicle device is supported by this bracket (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] On the other hand, when a vehicle receives some external force, the shape of the accommodation chamber itself may deform, and the position of the bracket fixed to the dash panel or the frame may move. In this case, there is a concern that the in-vehicle device may move following the deformation of the accommodation chamber itself, resulting in interference with other devices arranged around it or the vehicle body structure. Therefore, it is desired to realize a new structure that can improve the protection performance of the in-vehicle device.

[0005] One of the objects of this invention was conceived in view of the above problems, and is to provide a vehicle body structure that can improve the protection performance of an in-vehicle device. Note that, not limited to this object, the operational effects derived from each configuration shown in the "Mode for Carrying Out the Invention" described later, and which are not achievable with the conventional technology, are also positioned as other objects of this invention. [Means for solving the problem]

[0006] The disclosed vehicle body structure can be realized in the following embodiments (application examples), solving at least some of the above-mentioned problems. Each of the embodiments from Embodiment 2 onward is an additional embodiment that can be appropriately selected, and each of them is an embodiment that can be omitted. None of the embodiments from Embodiment 2 onward disclose any embodiments or configurations that are indispensable to this case.

[0007] Embodiment 1. The disclosed vehicle body structure is a vehicle body structure comprising a fender shield provided inside the fender panel of the vehicle and forming part of the bottom surface of a storage compartment in which an on-board device is housed. The fender shield is formed in a planar shape with a downward slope toward the front and comprises a first surface portion on which a first on-board device is arranged, a second surface portion formed in a substantially flat strip shape extending in the vehicle width direction on the rear side of the first surface portion, a ridge portion including a wall portion formed by bulging the plate surface in the plate thickness direction on the rear side of the second surface portion, and a third surface portion on the rear side of the second surface portion and substantially to the side of the ridge portion on which a second on-board device is arranged.

[0008] Embodiment 2. In Embodiment 1 described above, it is preferable that the first surface portion has a bead formed by extending a portion of the plate surface that bulges in the plate thickness direction in the vehicle's front-rear direction. Embodiment 3. In Embodiment 1 or 2 described above, it is preferable that the ridge portion has a planar shape with an upward slope toward the rear side of the second surface portion and has a first vertical wall portion extending along the vehicle width direction.

[0009] Embodiment 4. In Embodiment 3 described above, it is preferable that the ridge portion has a second vertical wall portion that extends from the inner end of the first vertical wall portion in the vehicle width direction toward the rear and is formed as a planar surface with an upward slope toward the outer side in the vehicle width direction. Embodiment 5. In any of embodiments 1 to 4 described above, it is preferable that the third surface portion has a first reinforcing portion that bulges in the thickness direction around the location where the second on-board device is fixed.

[0010] Embodiment 6. In Embodiment 4 described above, the third surface portion has a first reinforcing portion that bulges in the thickness direction around the portion where the second in-vehicle device is fixed, and it is preferable that the first reinforcing portion is located to the side of the second vertical wall portion. Embodiment 7. In Embodiment 4 described above, the fender shield preferably includes a second reinforcing portion formed by the first vertical wall portion and the second vertical wall portion, with a top portion that is planar and bulges upward. It is also preferable that a strut tower is arranged on the second reinforcing portion.

[0011] Embodiment 8. In any of embodiments 1 to 7 above, it is preferable that a tray member is mounted substantially horizontally to the first surface, the first in-vehicle device is fixed to the first surface via the tray member, and the tray member has a tray bead formed by extending a portion of the plate surface that bulges in the plate thickness direction in the vehicle longitudinal direction.

[0012] Embodiment 9. In any of embodiments 1 to 8 above, the vehicle comprises a pair of left and right upper frames supporting both left and right edges of the bonnet hood, and a pair of left and right front subframes extending inward and downward from the front end of each of the upper frames and connected to a front support member, wherein the front end of the first surface portion is joined to the front subframe, and the side end of the third surface portion is joined to the upper frame.

[0013] Embodiment 10. In Embodiment 9 described above, the vehicle is provided with a first cross member having a hat-shaped cross section and extending in the vehicle width direction, which connects a pair of left and right front support members in the vehicle width direction, and it is preferable that the position in the height direction of the front end of the first surface portion is set to the same height as the first cross member. [Effects of the Invention]

[0014] According to the disclosed vehicle body structure, when the fender shield deforms due to an external force from the front of the housing compartment, it is possible to promote mountain-fold deformation in the second surface between the first surface, the third surface, and the ridge of the fender shield. This can suppress interference between the on-board equipment and other surrounding equipment and the vehicle body structure, and improve the protective performance of the on-board equipment. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view showing a partially transparent view of a disassembled vehicle body structure as an example of an embodiment. [Figure 2] Figure 1 is a longitudinal cross-sectional view showing the structure of the containment chamber. [Figure 3] This is an exploded perspective view showing the structure around the left fender shield. [Figure 4] (A) is a top view of the left fender shield, and (B) is a side view thereof. [Modes for carrying out the invention]

[0016] The disclosed vehicle body structure is applicable to the vehicle shown in the following embodiment. This vehicle body structure includes a fender shield. The fender shield is located inside the vehicle's fender panel and forms part of the bottom surface of a housing where on-board equipment is housed. This housing includes, for example, an engine room, motor room, power unit room, etc. The on-board equipment includes the vehicle's drive-related equipment (fuel filter, fuel pump, canister, air cleaner, various reservoir tanks, brake booster, transformer, battery, etc.) and other equipment (air conditioning equipment, electrical equipment, etc.).

[0017] Regarding the definition of directions in this embodiment, the front-rear direction (vehicle length direction) is defined based on the forward and backward directions of the vehicle, and the left-right direction (vehicle width direction) is defined based on the front-rear direction. The up-down direction is defined based on the state where the vehicle is stopped on a flat road surface. Regarding the vehicle width direction, on the part of the vehicle above the vehicle body center line in the top view of the vehicle, on the left side, the left is the outside of the vehicle and the right is the inside of the vehicle. Also, on the part of the vehicle above the vehicle body center line in the top view of the vehicle, on the right side, the right is the outside of the vehicle and the left is the inside of the vehicle.

Embodiment

[0018] [1. Accommodation room] FIG. 1 is a perspective view showing a partially transparent state in which the accommodation room 1 of a vehicle to which the vehicle body structure as an embodiment is applied is disassembled, and FIG. 2 is a longitudinal sectional view of the accommodation room 1. The accommodation room 1 of this embodiment is a power unit room in which the drive device of the vehicle is accommodated, and is arranged in front of the passenger compartment where passengers board.

[0019] In the accommodation room 1 shown in FIGS. 1 and 2, an engine (internal combustion engine as a drive device) not shown, a first vehicle-mounted device 11 (battery), and a second vehicle-mounted device 12 (fuel filter) are accommodated. An opening is provided on the upper end side of the accommodation room 1, and a bonnet hood not shown is attached to this opening so as to be openable and closable. The engine is arranged inside the accommodation room 1, for example, at a position from near the center in the vehicle width direction to the right side.

[0020] The first vehicle-mounted device 11 is a secondary battery (so-called accessory battery) that stores electric power generated by an alternator not shown provided in parallel with the engine, and is arranged on the left side (left side of the engine) inside the accommodation room 1. The second vehicle-mounted device 12 is a filter device for filtering the fuel supplied to the engine, and is arranged on the left side (left side of the engine) inside the accommodation room 1 and behind the first vehicle-mounted device 11. The first vehicle-mounted device 11 and the second vehicle-mounted device 12 are fixed to the fender shield 10 described later. Note that the first vehicle-mounted device 11 and the second vehicle-mounted device 12 may be arranged at another position (for example, on the right side of the engine).

[0021] Below the containment chamber 1, a pair of left and right side members 2 are positioned. The side members 2 are skeletal members that extend in the front-rear direction and are provided at predetermined intervals in the left-right direction. A front bumper beam 4 is connected to the front end of each side member 2. The front bumper beam 4 is a protective member that absorbs impact when an external force is applied to the front of the vehicle, and is provided almost horizontally so as to extend outward in the vehicle width direction more than the left and right side members 2.

[0022] A front support member 3 (radiator core support member) is connected to the front portion of each side member 2, slightly behind the front bumper beam 4. The front support member 3 is a component that extends vertically and has the function of supporting the radiator unit and headlamp unit attached to the front end of the vehicle. A pair of front support members 3 are provided at the front end of the housing compartment 1, with a predetermined distance between them in the left-right direction.

[0023] The upper ends of the left and right front support members 3 are connected almost horizontally by an upper bar 6. The upper bar 6 is a member for supporting the front end of the bonnet hood and is positioned, for example, along the edge of the opening to which the bonnet hood is attached. Both left and right ends of the upper bar 6 extend outward in the vehicle width direction from the front support members 3 and also extend towards the rear of the vehicle in a curve that follows the shape of the left and right sides of the bonnet hood. The upper frame 5 is connected to both ends of the upper bar 6.

[0024] The upper frame 5 is provided so as to extend almost horizontally forward from near the lower end of the vehicle's front pillar and is a member that connects to both ends of the upper bar 6. The upper frame 5 is arranged in pairs on the left and right sides at the top of the housing compartment 1. The vehicle's front fender panel is attached to the outside of the upper frame 5. Below the upper frame 5 are the front wheels (not shown) and the strut towers 13. The upper frame 5 and upper bar 6 function to support the portion of the bonnet hood from both ends to the front end. The strut towers 13 are tower-shaped parts to which the upper parts of the suspension struts (springs and dampers) are fixed. The lower ends of the strut towers 13 are fixed to the side members 2.

[0025] The front end of the upper frame 5 is connected not only to the upper bar 6 but also to the front subframe 7. The front subframe 7 is provided to extend downward and inward from the connection point between the upper frame 5 and the upper bar 6, and is connected to the front support member 3. The front subframe 7 has the function of supporting the headlamp unit. The upper bar 6 and the front subframe 7 are arranged to split into two branches from the front end of the upper frame 5 and extend forward, with the headlamp unit positioned between them.

[0026] A dash panel 8 is provided at the rear end of the accommodation compartment 1. The dash panel 8 is a planar member that separates the passenger compartment and the accommodation compartment 1 in the front-rear direction, with the space in front of the dash panel 8 becoming the accommodation compartment 1. The dash panel 8 is erected to cover the rear end of the accommodation compartment 1, for example, from the upper end surface of the upper frame 5 to the upper end surface of the side member 2. The lower end of the dash panel 8 is provided to extend planarly to the rear along, for example, the upper end surface of the side member 2, and is connected to the floor panel of the passenger compartment in a substantially flush surface.

[0027] As shown in Figure 2, a first cross member 9 is provided on the front side of the joint between the front support member 3 and the front subframe 7. The first cross member 9 is a member that has a hat-shaped cross section and extends in the vehicle width direction, connecting the left and right pair of front support members 3 in the vehicle width direction. The orientation of the first cross member 9 is set so that the top surface of the hat-shaped cross section faces the front of the vehicle, and the flange portion of the hat-shaped cross section is in surface contact with the front side of the front support member 3.

[0028] A fender shield 10 is installed inside the storage compartment 1. The fender shield 10 is a planar member that forms part of the bottom surface of the storage compartment 1 on the inside of the vehicle's fender panel. In this embodiment, as shown in Figure 1, a pair of fender shields 10 are provided on the inside of each of the left and right fender panels. The outer edges of the fender shield 10 are connected to the upper frame 5 and the front subframe 7. The inner edges of the fender shield 10 are provided to be spaced above the side members 2.

[0029] As shown in Figure 2, the strut tower 13 and wheel well are located below the fender shield 10. The overall shape of the fender shield 10 is such that it does not interfere with the wheel well, and in a side view, the central part bulges slightly upward from the front end, giving it a mountain-like shape. The first on-board device 11 and the second on-board device 12 are fixed to the left side of the fender shield 10. The fender shield 10 on the side where the first on-board device 11 and the second on-board device 12 are not fixed (the right side in this embodiment) can be omitted.

[0030] [2. Fender Shield] Figure 3 is an exploded perspective view showing the structure around the left fender shield 10, Figure 4(A) is a top view of the left fender shield 10, and Figure 4(B) is a side view thereof. The left fender shield 10 comprises at least a first surface portion 21, a second surface portion 22, a third surface portion 23, and a ridge portion 41. In this embodiment, a fourth surface portion 24 is also provided. The fourth surface portion 24 is an optional part.

[0031] The first surface portion 21 is a planar part that forms the front end of the fender shield 10 and is formed as a surface with a downward slope toward the front. The first on-board device 11 is arranged on the first surface portion 21. The surface shape of the first surface portion 21 may be curved or flat. The front end of the first surface portion 21 is joined to the front subframe 7, and the left end of the first surface portion 21 is joined to the upper frame 5 and the front subframe 7.

[0032] Preferably, the front end of the first surface portion 21 is joined to the front support member 3 and the front subframe 7 such that, in a side view, the front end of the first surface portion 21 is located directly behind the first cross member 9. That is, the height of the front end of the first surface portion 21, which is fixed to the rear surface of the front support member 3 and the front subframe 7, is set to the same height as the first cross member 9, which is fixed to the front surface of the front support member 3 and the front subframe 7.

[0033] As shown in Figure 4(A), a reinforcing bead 25 is formed on the first surface portion 21. The bead 25 is a portion that extends in the vehicle's front-rear direction by bulging outwards in the plate thickness direction of the plate surface. In this embodiment, the bead 25 is formed in a shape in which multiple linear portions that bulge downwards from the surrounding area are arranged at intervals in the vehicle width direction.

[0034] The second surface portion 22 is a planar portion formed in a substantially flat, strip-like shape extending in the vehicle width direction on the rear side of the first surface portion 21. The left end of the second surface portion 22 is joined to the upper frame 5. Regarding the bending rigidity of the fender shield 10, the bending rigidity of the second surface portion 22 is set to be lower than that of the first surface portion 21, and also lower than that of the third surface portion 23, which will be described later. The second surface portion 22 is more easily bent than the first surface portion 21 and the third surface portion 23, and when subjected to an external force from the front side of the housing compartment 1, it forms a ridge of mountain-fold deformation (for example, part or all of the second surface portion 22 bends and becomes convex upwards).

[0035] The ridge portion 41 is a part that includes a wall portion formed by bulging the plate surface in the thickness direction on the rear side of the second surface portion 22. The ridge portion 41 has a first vertical wall portion 31 that extends in the vehicle width direction and a second vertical wall portion 32 that extends in the front-rear direction. The first vertical wall portion 31 is the part that constitutes the front part of the wall portion of the ridge portion 41, and the second vertical wall portion 32 is the part that constitutes the right part of the wall portion of the ridge portion 41, and is shaped to extend towards the rear from the inner end of the first vertical wall portion 31 in the vehicle width direction. The overall shape of the ridge portion 41 in a top view is L-shaped.

[0036] The first vertical wall section 31 is formed as a surface with an upward slope toward the rear side of the second surface section 22 (and a downward slope toward the front side). The boundary between the first vertical wall section 31 and the second surface section 22 has a shape that resembles a valley fold with a convex shape downwards (forming an inverted ridge). Similarly, the second vertical wall section 32 is formed as a surface with an upward slope toward the outward side in the vehicle width direction (and a downward slope toward the right side). The boundary between the second vertical wall section 32 and the third surface section 23, which will be described later, also has a shape that resembles a valley fold with a convex shape downwards (forming an inverted ridge).

[0037] The third surface portion 23 is a planar area where the second on-board device 12 is positioned, located behind the second surface portion 22 and approximately to the side of the ridge portion 41. The left end of the third surface portion 23 is joined to the upper frame 5. As shown in Figures 4(A) and (B), the third surface portion 23 is provided with a first reinforcing portion 51 (on-board device reinforcing portion). The first reinforcing portion 51 is a portion that bulges out in the thickness direction around the area where the second on-board device 12 is fixed, and is formed, for example, in a rectangular shape that bulges downward from the surrounding area. The first reinforcing portion 51 is located to the side of the second vertical wall portion 32.

[0038] A second reinforcing section 52 (strut tower reinforcing section) is provided to the outside (left side) in the vehicle width direction of the first reinforcing section 51. The second reinforcing section 52 is a part that bulges upward around the location where the strut tower 13 is positioned, and is formed by a first vertical wall section 31 and a second vertical wall section 32, with its top (flat section 30) being flat. The flat section 30 is formed in a nearly horizontal flat shape so as to face the top surface of the strut tower 13. The first vertical wall section 31 is positioned to the right (inward in the vehicle width direction) of the flat section 30, and the second vertical wall section 32 is positioned in front of the flat section 30. The first vertical wall section 31 forms an inclined surface connecting the flat section 30 and the second flat section 22, and the second vertical wall section 32 forms an inclined surface connecting the flat section 30 and the first reinforcing section 51.

[0039] The fourth surface portion 24 is a planar portion located behind the third surface portion 23. The fourth surface portion 24 is formed as a planar shape with a downward slope toward the rear (towards the center in the longitudinal direction of the vehicle). The rear end of the fourth surface portion 24 is joined to the dash panel 8, and the left end of the fourth surface portion 24 is joined to the upper frame 5. The fourth surface portion 24 may also be formed in a substantially horizontal shape so as to be on the same plane as the third surface portion 23.

[0040] As shown in Figure 3, the first on-board device 11 is fixed to the first surface 21 of this embodiment via a tray member 28. The tray member 28 is a bracket member for fixing the first on-board device 11 and is mounted substantially horizontally to the first surface 21. The tray member 28 shown in Figure 3 has a horizontal surface on which the first on-board device 11 is placed and a wall portion extending downward from its front edge, and its longitudinal cross-sectional shape is substantially L-shaped. The tray member 28 may be fixed to the first surface 21 using a bracket (not shown), or it may be fixed by fasteners (not shown), or it may be fixed by welding.

[0041] The tray member 28 is positioned so that it overlaps with the bead 25 when viewed from above. This improves the stability of the first in-vehicle device 11. A tray bead 29 is also formed on the tray member 28. The tray bead 29 is a portion that extends in the vehicle's longitudinal direction by bulging outwards in the thickness direction of the plate surface. In this embodiment, the tray bead 29 is formed in a shape in which multiple linear portions that bulge downwards from the surrounding area are arranged at intervals in the vehicle's width direction.

[0042] [3. Effects] (1) The vehicle body structure according to this embodiment includes a fender shield 10 comprising a first surface portion 21, a second surface portion 22, a ridge portion 41, and a third surface portion 23. The first surface portion 21 is formed as a surface that slopes downward toward the front, and the first on-board device 11 is arranged thereon. The second surface portion 22 is formed as a substantially flat strip extending in the vehicle width direction on the rear side of the first surface portion 21. The ridge portion 41 is located on the rear side of the second surface portion 22 and includes wall portions (first vertical wall portion 31, second vertical wall portion 32) formed by bulging the plate surface in the plate thickness direction. The third surface portion 23 is located on the rear side of the second surface portion 22 and substantially to the side of the ridge portion 41, and the second on-board device 12 is fixed thereon.

[0043] With this configuration, when the fender shield 10 deforms due to an external force from the front of the housing chamber 1, it is possible to promote mountain-fold deformation in the second surface 22 between the first surface 21, the third surface 23, and the ridge 41. In other words, as the fender shield 10 bends in front of the second on-board device 12, the front of the second on-board device 12 is covered by the fender shield 10, making it difficult for the first on-board device 11 or the vehicle body structure to approach the second on-board device 12 from the front. Therefore, interference between the second on-board device 12 and other surrounding devices and the vehicle body structure can be suppressed, and the protective performance of the on-board devices (e.g., the first on-board device 11 and the second on-board device 12) housed in the housing chamber 1 can be improved.

[0044] (2) The first surface portion 21 has a bead 25 which is formed by extending a portion of the plate surface that bulges in the thickness direction in the front-rear direction. This increases the bending rigidity of the first surface portion 21 and relatively decreases the bending rigidity of the second surface portion 22. Therefore, when subjected to an external force from the front, mountain-fold deformation of the second surface portion 22 can be promoted, further improving the protective performance of the on-board device housed in the storage chamber 1. In addition, by making the shape of the bead 25 bulge downwards compared to its surroundings, interference between the tray member 28 and the first on-board device 11 attached to the first surface portion 21 and the bead 25 can be prevented, and the degree of freedom in the layout of the first on-board device 11 inside the storage chamber 1 can be increased.

[0045] (3) The ridge portion 41 is provided with a first vertical wall portion 31 that has an upward sloping surface towards the rear side of the second surface portion 22 and extends along the vehicle width direction. This increases the bending rigidity on the rear side of the second surface portion 22 and promotes mountain-fold deformation of the second surface portion 22 in response to external forces from the front side of the storage compartment 1. Therefore, the protective performance of the on-board equipment housed in the storage compartment 1 can be further improved. In addition, by making the shape of the first vertical wall portion 31 an upward sloping surface towards the rear side of the second surface portion 22, it becomes easier to secure space for installing the strut tower 13 below the fender shield 10, as shown in Figure 2. Therefore, the protective performance of the storage compartment 1 can be improved without impairing the operation or performance of the vehicle's suspension system.

[0046] (4) The ridge portion 41 is provided with a second vertical wall portion 32 that extends from the inner end in the vehicle width direction of the first vertical wall portion 31 toward the rear and is formed as a planar shape with an upward slope toward the outer side in the vehicle width direction. This further increases the bending rigidity of the rear side of the second planar portion 22. In particular, since the second vertical wall portion 32 is shaped to receive loads in the longitudinal direction within its plane, it is less likely to deform under external forces from the front and its shape is easily maintained. As a result, bending deformation is more likely to occur in the second planar portion 22 in front of the second vertical wall portion 32. Therefore, the protective performance of the on-board equipment housed in the housing 1 can be further improved. In addition, by making the shape of the second vertical wall portion 32 as a planar shape with an upward slope toward the outer side in the vehicle width direction, it becomes easier to secure space for the strut tower 13 below the fender shield 10. Therefore, the protective performance of the housing 1 can be improved without impairing the operation or performance of the vehicle's suspension system.

[0047] (5) The third surface portion 23 has a first reinforcing portion 51 which bulges in the thickness direction around the location where the second on-board device 12 is fixed. This increases the bending rigidity of the third surface portion 23 and relatively decreases the bending rigidity of the second surface portion 22. Therefore, when subjected to an external force from the front, mountain-fold deformation of the second surface portion 22 can be promoted, and the protective performance of the on-board device housed in the housing chamber 1 can be further improved.

[0048] Furthermore, by making the shape of the first reinforcing portion 51 bulge downwards compared to its surroundings, the mounting position of the second on-board device 12 in the height direction can be lowered. As a result, when the second surface portion 22 is deformed into a mountain-fold shape by an external force from the front, the second on-board device 12 is more likely to be positioned below the ridge of the deformed second surface portion 22. Therefore, interference between the second on-board device 12 and other surrounding devices and the vehicle body structure can be more reliably suppressed, and the protective performance of the second on-board device 12 can be further improved.

[0049] (6) The first reinforcing portion 51 is positioned to the side of the second vertical wall portion 32. By providing the first reinforcing portion 51 to the side of the area with high bending rigidity (second vertical wall portion 32), the mounting state of the second on-board device 12 can be stabilized. Furthermore, even if the second surface portion 22 is deformed into a mountain shape by an external force from the front, the surface shape of the first reinforcing portion 51 is more easily maintained. This prevents the second on-board device 12 from moving to an unintended position or changing its orientation in an unintended direction. Therefore, the protective performance of the second on-board device 12 can be further improved.

[0050] (7) The fender shield 10 described above is provided with a second reinforcing portion 52. The second reinforcing portion 52 is formed by the first vertical wall portion 31 and the second vertical wall portion 32, and its top is planar, forming a shape that bulges upward. As shown in Figure 2, the strut tower 13 is positioned below this second reinforcing portion 52. This increases the bending rigidity around the strut tower 13, promotes bending deformation near the boundary between the second vertical wall portion 32 and the second surface portion 22 located on its front side, and promotes mountain-fold deformation at the second surface portion 22. Therefore, the protective performance of the in-vehicle equipment housed in the housing chamber 1 can be further improved.

[0051] (8) The fender shield 10 described above includes a tray member 28. The tray member 28 is mounted substantially horizontally to the first surface portion 21. The first on-board device 11 is fixed to the first surface portion 21 via the tray member 28. The tray member 28 also has a tray bead 29 which extends in the front-rear direction from a portion of the plate surface that bulges in the plate thickness direction. By fixing the first on-board device 11 to the first surface portion 21 which is in front of the second surface portion 22 in this way, interference between the second on-board device 12 and the first on-board device 11 can be prevented when subjected to external forces from the front, and the protective performance of the second on-board device 12 can be further improved.

[0052] Furthermore, the first on-board device 11 is indirectly fixed to the first surface portion 21 of the fender shield 10 via the tray member 28. As a result, even if the first surface portion 21 is slightly deformed by an external force, for example, the effects of that deformation are less likely to affect the first on-board device 11, thus preventing deformation or damage to the first on-board device 11. In this sense as well, the protective performance of the first on-board device 11 can be improved.

[0053] (9) The vehicle of this embodiment comprises a pair of left and right upper frames 5 that support both left and right edges of the bonnet hood, and a pair of left and right front subframes 7 that extend from the front end of the upper frame 5 toward the inside and forward-downward of the vehicle and are connected to the front support member 3. The front end of the first surface portion 21 is joined to the front subframe 7, and the side end of the third surface portion 23 is joined to the upper frame 5.

[0054] This configuration ensures the bending rigidity of the fender shield 10 when no external force is acting on it, while easily enabling mountain-fold deformation when an external force is applied. Furthermore, by joining the front end of the first surface portion 21 to the front subframe 7, the mounting state of the first on-board device 11 fixed to the first surface portion 21 can be stabilized, preventing, for example, wobbling of the first on-board device 11 while the vehicle is in motion.

[0055] (10) The vehicle of this embodiment has a hat-shaped cross section and is equipped with a first cross member 9 that extends in the vehicle width direction and connects a pair of left and right front support members 3 in the vehicle width direction. In addition, the height position of the front end of the first surface portion 21 is set to the same height as the first cross member 9. As a result, when an external force is applied from the front of the vehicle, a bending moment is more likely to act on the second surface portion 22, and mountain-fold deformation of the second surface portion 22 can be promoted. Therefore, the protective performance of the in-vehicle device housed in the storage compartment 1 can be further improved.

[0056] [4. Others] The above embodiments are merely illustrative examples, and there is no intention to exclude various modifications or applications of techniques not explicitly stated in these embodiments. Each configuration of these embodiments can be modified in various ways without departing from their intended purpose. Furthermore, each configuration of these embodiments can be selected or omitted as needed, or combined with various configurations included in publicly known technologies as appropriate.

[0057] In the above embodiment, a structure was illustrated in which the first on-board device 11 is fixed to the first surface portion 21 of the fender shield 10 via a tray member 28. However, the first on-board device 11 may be directly attached to the first surface portion 21. At a minimum, by providing a second surface portion 22 between the first surface portion 21 on which the first on-board device 11 is located and the third surface portion 23 on which the second on-board device 12 is located, and by providing a ridge portion 41 on the rear side of the second surface portion 22, a structure that provides the same effects as in the above embodiment can be realized. [Industrial applicability]

[0058] This technology is applicable to the vehicle manufacturing industry, where a vehicle body structure with fender shields is used. [Explanation of symbols]

[0059] 1. Containment Chamber (Power Unit Room) 2 Side Members 3 Front Support Members 4. Front bumper beam 5 Upper Frame 6 Upper Bar 7 Front subframe 8. Dashboard 9 First Cross Members 10 Fender Shield 11. First On-board Equipment (On-board Equipment, Battery) 12. Second On-board Equipment (On-board Equipment, Fuel Filter) 13 Strut Tower 21 First page 22 Second surface section 23 Third side 24 Fourth side 25 Bead 28 Tray component 29 Treybead 30 Plane part 31. First vertical wall section (wall section, ridge section) 32 Second vertical wall section (wall section, ridge section) 41 Ridge section 51 First reinforcement section (vehicle equipment reinforcement section) 52 Second reinforcement section (strut tower reinforcement section)

Claims

1. A vehicle body structure comprising a fender shield located inside the vehicle's fender panel, which forms part of the bottom surface of a storage compartment in which on-board equipment is housed, The aforementioned fender shield is It is formed as a surface with a downward slope toward the front, and the first surface portion on which the first on-board device is arranged, A second surface portion is formed on the rear side of the first surface portion, extending in the vehicle width direction in a flat, strip-like shape, The rear side of the second surface portion includes a ridge portion that includes a wall portion formed by bulging the plate surface in the thickness direction, The vehicle comprises a third surface portion located on the rear side of the second surface portion and approximately to the side of the ridge portion, on which a second on-board device is positioned. A vehicle body structure characterized by the following features.

2. The first surface portion has a bead formed by extending a portion of the plate surface that bulges in the thickness direction in the vehicle's front-rear direction. The vehicle body structure according to claim 1, characterized in that it is the same as described in claim 1.

3. The aforementioned ridge portion has a planar shape that slopes upward toward the rear side of the second surface portion and has a first vertical wall portion that extends along the vehicle width direction. The vehicle body structure according to claim 1, characterized in that it is the same as described in claim 1.

4. The aforementioned ridge portion has a second vertical wall portion that extends from the inner end of the first vertical wall portion in the vehicle width direction toward the rear and is formed as a surface with an upward slope toward the outer side in the vehicle width direction. The vehicle body structure according to claim 3, characterized in that it is the vehicle body structure according to claim 3.

5. The third surface portion has a first reinforcing portion that bulges in the thickness direction around the area where the second on-board device is fixed. The vehicle body structure according to claim 1, characterized in that it is the same as described in claim 1.

6. The third surface portion has a first reinforcing portion that bulges in the thickness direction around the location where the second on-board device is fixed, The first reinforcing portion is located to the side of the second vertical wall portion. The vehicle body structure according to claim 4, characterized in that it is the vehicle body structure according to claim 4.

7. The aforementioned fender shield is The reinforcing portion is formed by the first vertical wall portion and the second vertical wall portion, and has a top that is flat and has a shape that bulges upward, A strut tower is positioned in the second reinforcement section. The vehicle body structure according to claim 4, characterized in that it is the vehicle body structure according to claim 4.

8. A tray member is provided which is mounted horizontally to the first surface portion, The first in-vehicle device is fixed to the first surface portion via the tray member, The tray member has a tray bead formed by extending a portion of the plate surface that bulges in the thickness direction in the vehicle's front-rear direction. A vehicle body structure according to any one of claims 1 to 7, characterized in that...

9. The vehicle comprises a pair of left and right upper frames that support both left and right edges of the hood, and a pair of left and right front subframes that extend from the front end of each of the upper frames toward the inside and downward and forward of the vehicle and are connected to a front support member. The front end of the first surface portion is joined to the front subframe, The side end of the third surface portion is joined to the upper frame. The vehicle body structure according to claim 1, characterized in that it is the same as described in claim 1.

10. The vehicle comprises a first cross member having a hat-shaped cross section and extending in the vehicle width direction, which connects a pair of left and right front support members in the vehicle width direction. The height position of the front end of the first surface portion is set to the same height as the first cross member. The vehicle body structure according to claim 9, characterized in that it is the vehicle body structure according to claim 9.