CN215553008U - Vehicle body front structure - Google Patents
Vehicle body front structure Download PDFInfo
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- CN215553008U CN215553008U CN202120542311.6U CN202120542311U CN215553008U CN 215553008 U CN215553008 U CN 215553008U CN 202120542311 U CN202120542311 U CN 202120542311U CN 215553008 U CN215553008 U CN 215553008U
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Abstract
The utility model provides a vehicle body front structure, wherein a mounting bracket capable of absorbing impact is arranged on the front side of a vehicle body to improve the impact absorption efficiency. The vehicle body front structure includes: a bumper member disposed in front of the vehicle body; and a mounting bracket that fixes the bumper member to the vehicle body, wherein the mounting bracket has a longitudinal wall portion that extends in a vehicle body front-rear direction, and a connecting portion that extends from the longitudinal wall portion toward the vehicle body to be connected to the vehicle body, and the mounting bracket has a front half portion that corresponds to the bumper member, a rear half portion that corresponds to the vehicle body, and a bent portion that is located between the front half portion and the rear half portion, and the longitudinal wall portion is formed in a bent shape that is bent toward an inside or an outside in a vehicle width direction with the bent portion as a bending point in a plane direction.
Description
Technical Field
The present invention relates to a vehicle body front structure.
Background
Conventionally, as a vehicle body front structure, a bumper (bumper) member is generally provided in a vehicle body. The bumper member is fixable to a front of a vehicle body via a mounting bracket. In order to maintain a bumper member having a relatively large weight, it is conventional to use a mounting bracket having high rigidity or to form a bead portion on the mounting bracket to reinforce the strength of the mounting bracket for supporting the bumper member. However, when a pedestrian collides with the mounting bracket in front of the vehicle, the mounting bracket has fewer portions that can receive the collision load from the front of the vehicle body and deform, that is, the mounting bracket has a small amount of absorption of the received impact energy, and therefore, the transmission of the impact to the vehicle body side cannot be suppressed, and the pedestrian protection function is not provided.
[ Prior art documents ]
[ patent document ]
[ patent document 1] Japanese patent laid-open publication No. 2020-104583
SUMMERY OF THE UTILITY MODEL
The utility model provides a vehicle body front structure, wherein a mounting bracket capable of absorbing impact is arranged on the front side of a vehicle body to improve the impact absorption efficiency.
The utility model provides a vehicle body front structure, comprising: a bumper member disposed in front of the vehicle body; and a mounting bracket that fixes the bumper member to the vehicle body, wherein the mounting bracket has a longitudinal wall portion that extends in a vehicle body front-rear direction, and a connecting portion that extends from the longitudinal wall portion toward the vehicle body to be connected to the vehicle body, and the mounting bracket has a front half portion that corresponds to the bumper member, a rear half portion that corresponds to the vehicle body, and a bent portion that is located between the front half portion and the rear half portion, and the longitudinal wall portion is formed in a bent shape that is bent toward an inside or an outside in a vehicle width direction with the bent portion as a bending point in a plane direction.
In one embodiment of the present invention, in the rear half of the mounting bracket, the coupling portion includes an upper wall portion extending horizontally from the vertical wall portion toward the vehicle body via a horizontal bent portion, and a fold portion located on the upper wall portion, and the upper wall portion is provided with a bead-shaped portion that straddles the fold portion.
In one embodiment of the present invention, in the rear half of the mounting bracket, the vertical wall portion gradually increases in height in the vehicle vertical direction toward the vehicle body, an upper fixing portion connected to the vehicle body is provided at an upper end of the upper wall portion, and a leg portion facing the upper wall portion and a lower fixing portion provided on the leg portion and connected to the vehicle body are provided at a lower end of the vertical wall portion.
In one embodiment of the present invention, the leg portion is provided with a component mounting portion on a rear side of the bumper member in the rear half of the mounting bracket.
In one embodiment of the present invention, in the rear half of the mounting bracket, the connecting portion has a front wall portion extending vertically from the vertical wall portion toward the vehicle body via a vertical bent portion, and a first bead shape portion spanning the vertical bent portion is provided between the front wall portion and the vertical wall portion.
In one embodiment of the present invention, in the rear half of the mounting bracket, a height of the vertical wall portion in the vehicle vertical direction gradually increases toward the vehicle body, an upper fixing portion connected to the vehicle body is provided at an upper end of the front wall portion, and the front wall portion is provided to face a side surface of the vehicle body.
In one embodiment of the present invention, a bent connecting portion and a second bead-shaped portion that straddles the bent connecting portion are provided between the front wall portion and the upper fixing portion.
In an embodiment of the present invention, the longitudinal wall portion is provided with an upper flange and a lower flange at opposite ends in a vehicle vertical direction, and the bent portion is provided with a notch as the bending point at least one of the upper flange and the lower flange.
In one embodiment of the present invention, the mounting bracket is provided in plurality in the vehicle width direction, and positions of the bent portions of the plurality of mounting brackets, which form the bending points, are different from each other in the vehicle body front-rear direction.
In one embodiment of the present invention, the front half of the mounting bracket is provided with a bumper fixing plate and connected to the bumper member via the bumper fixing plate, and the rear half of the mounting bracket is connected to an upper beam at a front end portion of the vehicle body.
In view of the above, in the vehicle body front structure of the present invention, the mounting bracket has the vertical wall portion extending in the vehicle body front-rear direction and the connecting portion extending from the vertical wall portion toward the vehicle body and connecting with the vehicle body, and the mounting bracket has the front half portion corresponding to the bumper member, the rear half portion corresponding to the vehicle body, and the bent portion located between the front half portion and the rear half portion, and the vertical wall portion is formed in a bent shape bent toward the inside or the outside in the vehicle width direction with the bent portion as a bending point in the plane direction. In this way, when a pedestrian collides in front of the vehicle, that is, when an impact is applied to the mounting bracket from the front of the bumper member, the vertical wall portion of the mounting bracket is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction with the bent portion as a bending point in the planar direction, so that the vertical wall portion can be tilted toward the inside or the outside in the vehicle width direction with the bent portion as a bending point when receiving an impact load, and the connecting portion absorbs the received impact energy, thereby suppressing the transmission of the impact to the vehicle body side and realizing a pedestrian protection function. Accordingly, the vehicle body front structure of the present invention is provided with the mounting bracket capable of absorbing impact on the vehicle body front side to improve the impact absorption performance.
In order to make the aforementioned and other features and advantages of the utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is an overall schematic view of a vehicle body front structure according to an embodiment of the utility model;
FIG. 2 is a plan view of the front structure of the vehicle body of FIG. 1;
FIG. 3 is a schematic view of a first mounting bracket used in the vehicle body front structure of FIG. 1;
fig. 4 is a schematic view of a second mounting bracket used in the vehicle body front structure of fig. 1.
Description of reference numerals:
100: a vehicle body front structure;
110: a bumper member;
112: a bumper fixing plate;
120: a first mounting bracket;
120a, 130 a: a front half;
120b, 130 b: the rear half part;
120c, 130 c: a bending section;
122. 132: a longitudinal wall portion;
122a, 132 a: an upper flange;
122b, 132 b: a lower flange;
124. 134: a connecting portion;
124 a: an upper wall portion;
124 b: a fold line portion;
124 c: a bead-shaped portion;
124d, 134 c: an upper fixing portion;
126: a horizontal bend;
128: a foot portion;
128 a: a lower fixing portion;
128 b: a component mounting section;
130: a second mounting bracket;
134 a: a front wall portion;
134 b: a first bead-shaped portion;
134 d: a bent connecting portion;
134 e: a second bead-shaped portion;
136: a vertical bend;
140: a vehicle body;
142: an upper beam;
144: a side surface;
c: a centerline;
d: a vehicle down direction;
fr: a vehicle front direction;
h1, H2, H3, H4: a height;
l: a vehicle left direction;
p1, P2: a bending point;
r: a vehicle right direction;
rr: a vehicle rear direction;
u: vehicle up direction.
Detailed Description
Fig. 1 is an overall schematic view of a vehicle body front structure 100 according to an embodiment of the utility model, and fig. 2 is a plan schematic view of the vehicle body front structure 100 of fig. 1. Referring to fig. 1 and 2, in the present embodiment, the vehicle body front structure 100 is a structure at a front portion of a vehicle body in a vehicle (not shown), and mainly includes a bumper member 110, a first mounting bracket 120, and a second mounting bracket 130, wherein the first mounting bracket 120 and the second mounting bracket 130 are mounting brackets suitable for two different structures in the vehicle body front structure 100, and a plurality of mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130) are provided in a vehicle width direction (i.e., a vehicle left direction L and a vehicle right direction R), but the utility model does not limit specific structures, numbers, and arrangement ranges of the mounting brackets used in the vehicle body front structure 100, and can be adjusted according to requirements.
Specifically, referring to fig. 1 and 2, in the present embodiment, the bumper member 110 is disposed in front of the vehicle body 140, i.e., the bumper member 110 corresponds to the vehicle front direction Fr and the vehicle body 140 corresponds to the vehicle rear direction Rr. Further, the mounting brackets (i.e., first mounting bracket 120 and second mounting bracket 130) are positioned between bumper member 110 and vehicle body 140, securing bumper member 110 to vehicle body 140. Further, the mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130) have a front half corresponding to the bumper member 110, and a rear half corresponding to the vehicle body 140. Further, a bumper fixing plate 112 (shown in fig. 2) is disposed at a front half portion of the mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130), and the bumper member 110 is connected via the bumper fixing plate 112. Also, the rear half of the mounting bracket (i.e., the first mounting bracket 120 and the second mounting bracket 130) is connected to an upper beam 142 at the front end of the vehicle body 140. However, the present invention is not limited to the specific structure of the bumper member 110 and the vehicle body 140, which can be adjusted as desired.
Further, in the present embodiment, as described above, the vehicle body front structure 100 employs the first mounting bracket 120 and the second mounting bracket 130 as mounting brackets for fixing the bumper member 110 to the vehicle body 140. Preferably, the two first mounting brackets 120 are disposed at the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R), and the two second mounting brackets 130 are disposed at the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R), but the number and the arrangement positions of the first mounting brackets 120 and the second mounting brackets 130 are not limited by the utility model, and can be adjusted according to the requirement.
Specific structures of the first mounting bracket 120 and the second mounting bracket 130 will be described below with reference to fig. 1 and 2, respectively, in conjunction with fig. 3 and 4, where fig. 3 is a schematic view of the first mounting bracket 120 used in the vehicle body front structure 100 of fig. 1, and fig. 4 is a schematic view of the second mounting bracket 130 used in the vehicle body front structure 100 of fig. 1.
First, referring to fig. 1 to 3, in the present embodiment, the first mounting bracket 120 has a vertical wall portion 122 extending in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr), and a connecting portion 124 extending from the vertical wall portion 122 toward the vehicle body 140 to be connected to the vehicle body 140, and the first mounting bracket 120 has a front half 120a corresponding to the bumper member 110, a rear half 120b corresponding to the vehicle body 140, and a bent portion 120c between the front half 120a and the rear half 120 b. Further, the vertical wall portion 122 is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 120c as a bending point P1 in the planar direction (i.e., the direction shown in the plan view of fig. 2). As shown in fig. 2, the first mounting bracket 120 is formed in a bent shape in which the vertical wall portion 122 is bent toward the inside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 120c as a bending point P1, but may be bent toward the outside in other embodiments not shown, and the present invention is not limited thereto.
In this way, when a pedestrian collides in front of the vehicle, that is, when an impact is applied to the first mounting bracket 120 from the front of the bumper member 110 (that is, in the vehicle front direction Fr), the vertical wall portion 122 of the first mounting bracket 120 is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction (that is, in the vehicle left direction L and the vehicle right direction R) in the planar direction with the bent portion 120c as the bending point P1, so that the vertical wall portion 122 can be tilted toward the inside or the outside in the vehicle width direction (that is, in the vehicle left direction L and the vehicle right direction R) with the bent portion 120c as the bending point P1 when an impact load is received, and the connecting portion 124 absorbs the received impact energy, thereby suppressing the transmission of the impact to the vehicle body 140 side and realizing the pedestrian protection function.
Specifically, in the present embodiment, as shown in fig. 3, the vertical wall portion 122 extends in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr) so as to correspond to the front half portion 120a and the rear half portion 120b, and the vertical wall portion 122 is provided with an upper flange 122a and a lower flange 122b at opposite ends in the vehicle vertical direction (i.e., the vehicle upper direction U and the vehicle lower direction D). A bent portion 120c between the front half 120a and the rear half 120b is formed on the vertical wall portion 122, and the bent portion 120c has a notch as a bending point P1 at least one of the upper flange 122a and the lower flange 122 b. For example, the bent portion 120c has notches on both the upper flange 122a and the lower flange 122b, but the utility model is not limited thereto. Further, the connecting portion 124 extending from the vertical wall portion 122 toward the vehicle body 140 and connected to the vehicle body 140 is closer to the vehicle body 140 than the bent portion 120c corresponds to the rear half portion 120 b.
As described above, when a pedestrian collides with the vehicle in front of the vehicle, the bent portion 120c having the notch in at least one of the upper flange 122a and the lower flange 122b is the weakest portion of the vertical wall portion 122 formed in the bent shape, so that the bent portion 120c can be bent as a trigger point (i.e., the bending point P1) of the bending, and the coupling portion 124 closer to the vehicle body 140 than the bent portion 120c corresponding to the rear half portion 120b can be further promoted to deform to absorb the received impact energy, thereby suppressing the transmission of the impact to the vehicle body 140 side and realizing the pedestrian protection function.
In the present embodiment, the coupling portion 124 has an upper wall portion 124a extending horizontally from the vertical wall portion 122 toward the vehicle body 140 via the horizontal bent portion 126 and a fold portion 124b located on the upper wall portion 124a in the rear half 120b of the first mounting bracket 120, and the upper wall portion 124a is provided with a bead shape portion 124c that straddles the fold portion 124 b. In this way, when a pedestrian collides with the vehicle in front of the vehicle, the vertical wall portion 122 can tilt toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 120c as the bending point P1 when receiving an impact load, and the coupling portion 124 can absorb the received impact energy. At this time, the horizontal bent portion 126 between the vertical wall portion 122 and the upper wall portion 124a of the coupling portion 124 bends to absorb the received impact energy, and the folded portion 124b provided on the upper wall portion 124a of the coupling portion 124 bends to absorb the received impact energy. Further, the bead-shaped portion 124c provided on the upper wall portion 124a of the connecting portion 124 so as to straddle the fold line portion 124b and ensure the strength of the first mounting bracket 120 when no impact is applied absorbs the impact energy applied thereto by generating a reaction force through deformation when the fold line portion 124b is bent, thereby suppressing the transmission of the impact to the vehicle body 140 side and achieving a pedestrian protection function.
In the present embodiment, in the rear half portion 120b of the first mounting bracket 120, the height of the vertical wall portion 122 in the vehicle vertical direction (i.e., the vehicle upper direction U and the vehicle lower direction D) gradually increases toward the vehicle body 140, and if the height H1 of a portion of the vertical wall portion 122 that is closer to the vehicle body 140 in correspondence with the vehicle rear direction Rr is larger than the height H2 of a portion of the vertical wall portion 122 that is closer to the bent portion 120c and the front half portion 120a (i.e., that faces the bumper member 110) in correspondence with the vehicle front direction Fr, and the upper end of the upper wall portion 124a is provided with the upper fixing portion 124D that is connected to the vehicle body 140. In this way, in the rear half 120b of the first mounting bracket 120, the base portion of the vertical wall portion 122, i.e., the side corresponding to the vehicle body 140, is provided with a sufficient height to reinforce the strength of the vertical wall portion 122, and the upper wall portion 124a of the connecting portion 124 is connected to the upper beam 142 of the vehicle body 140 via the upper fixing portion 124d, so that the bumper member 110 positioned in front of the vehicle body 140 can be stably supported.
Further, in the present embodiment, in the rear half portion 120b of the first mounting bracket 120, the lower end of the vertical wall portion 122 is provided with a leg portion 128 facing the upper wall portion 124a and a lower fixing portion 128a provided on the leg portion 128 to be connected to the side surface 144 of the vehicle body 140, and the leg portion 128 may be provided with a component mounting portion 128b located on the rear side of the bumper member 110. In this way, when a pedestrian collides with the vehicle in front of the vehicle, the vertical wall portion 122 can tilt toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 120c as the bending point P1 when receiving an impact load, and the coupling portion 124 can absorb the received impact energy. At this time, the leg portion 128 extending from the lower end of the vertical wall portion 122 can also absorb the received impact energy through deformation, thereby suppressing the transmission of the impact to the vehicle body 140 side and realizing a pedestrian protection function. Further, since the leg portion 128 is connected to the side surface 144 of the vehicle body 140 via the lower fixing portion 128a, the bumper member 110 positioned in front of the vehicle body 140 can be stably supported. Further, the component mounting portion 128b of the leg portion 128 can achieve an effect of arranging heavy electronic components on the rear side of the bumper member 110.
However, the above description about the specific structure of the first mounting bracket 120 is only used in the present embodiment to describe an embodiment of a mounting bracket applied to the vehicle body front structure 100. In other embodiments, which are not shown, the upper wall portion 124a, the fold line portion 124b, the bead shape portion 124c, the upper fixing portion 124d, the horizontal bending portion 126, the foot portion 128, the lower fixing portion 128a, the component mounting portion 128b, and the like may be optionally arranged according to the requirement, and the utility model is not limited to the specific structure of the first mounting bracket 120.
Next, referring to fig. 1, 2, and 4, in the present embodiment, the second mounting bracket 130 has a vertical wall portion 132 extending in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr), and a connecting portion 134 extending from the vertical wall portion 132 toward the vehicle body 140 and connected to the vehicle body 140, and the second mounting bracket 130 has a front half portion 130a corresponding to the bumper member 110, a rear half portion 130b corresponding to the vehicle body 140, and a bent portion 130c located between the front half portion 130a and the rear half portion 130 b. Further, the vertical wall portion 132 is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 130c as a bending point P2 in the planar direction (i.e., the direction shown in the plan view of fig. 2). As shown in fig. 2, the second mounting bracket 130 is formed in a bent shape in which the vertical wall portion 132 is bent toward the inside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 130c as a bending point P2, but may be bent toward the outside in other embodiments not shown, and the present invention is not limited thereto.
In this way, when a pedestrian collides in front of the vehicle, that is, when an impact is applied to the second mounting bracket 130 from the front of the bumper member 110 (i.e., in the vehicle front direction Fr), the vertical wall portion 132 of the second mounting bracket 130 is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction (i.e., in the vehicle left direction L and the vehicle right direction R) in the planar direction with the bent portion 130c as the bending point P2, so that the vertical wall portion 132 can be tilted toward the inside or the outside in the vehicle width direction (i.e., in the vehicle left direction L and the vehicle right direction R) with the bent portion 130c as the bending point P2 when an impact load is received, and the connecting portion 134 can absorb the received impact energy, thereby suppressing the transmission of the impact to the vehicle body 140 side and realizing a pedestrian protection function. The manner of forming the bent shape of the vertical wall 132 of the second mounting bracket 130 is similar to the manner of forming the bent shape of the vertical wall 122 of the first mounting bracket 120, and will not be described herein again.
Specifically, in the present embodiment, as shown in fig. 4, the vertical wall portion 132 extends in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr) so as to correspond to the front half portion 130a and the rear half portion 130b, and the vertical wall portion 132 is provided with an upper flange 132a and a lower flange 132b at opposite ends in the vehicle up-down direction (i.e., the vehicle up direction U and the vehicle down direction D). A bent portion 130c between the front half 130a and the rear half 130b is formed on the vertical wall portion 132, and the bent portion 130c has a notch as a bending point P2 at least one of the upper flange 132a and the lower flange 132 b. For example, the bent portion 130c has a notch on the upper flange 132a, but not limited thereto. Further, the connecting portion 134 extending from the vertical wall portion 132 toward the vehicle body 140 and connected to the vehicle body 140 is closer to the vehicle body 140 than the bent portion 130c corresponds to the rear half portion 130 b.
As described above, when a pedestrian collides with the vehicle in front of the vehicle, the bent portion 130c having the notch at least in one of the upper flange 132a and the lower flange 132b is the weakest portion of the vertical wall portion 132 formed in the bent shape, so that the bent portion 130c can be bent as a trigger point (i.e., the bending point P2) of the bending, and the coupling portion 134 closer to the vehicle body 140 than the bent portion 130c corresponding to the rear half portion 130b can be further promoted to deform to absorb the received impact energy, thereby suppressing the transmission of the impact to the vehicle body 140 side and realizing the pedestrian protection function.
Further, in the present embodiment, in the rear half 130b of the second mounting bracket 130, the coupling portion 134 has a front wall portion 134a extending vertically from the vertical wall portion 132 toward the vehicle body 140 via the vertical bent portion 136, and a first bead-shaped portion 134b spanning the vertical bent portion 136 is provided between the front wall portion 134a and the vertical wall portion 132. In this way, when a pedestrian collides with the vehicle in front of the vehicle, the vertical wall 132 can tilt toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 130c as the bending point P2 when receiving an impact load, and the coupling portion 134 can absorb the received impact energy. At this time, the vertical bent portion 136 between the vertical wall portion 132 and the front wall portion 134a of the coupling portion 134 bends to absorb the received impact energy. Further, the first bead-shaped portion 134b provided between the front wall portion 134a and the vertical wall portion 132 so as to straddle the vertical bent portion 136 and to secure the strength of the second mounting bracket 130 when no impact is applied absorbs the impact energy applied thereto by generating a reaction force through deformation when the vertical bent portion 136 is bent, thereby suppressing the transmission of the impact to the vehicle body 140 side and achieving a pedestrian protection function.
In the present embodiment, in the rear half portion 130b of the second mounting bracket 130, the height of the vertical wall portion 132 in the vehicle vertical direction (i.e., the vehicle upper direction U and the vehicle lower direction D) gradually increases toward the vehicle body 140, and for example, the height H3 of a portion of the vertical wall portion 132 that is closer to the vehicle body 140 in correspondence with the vehicle rear direction Rr is larger than the height H4 of a portion of the vertical wall portion 132 that is closer to the bent portion 130c and the front half portion 130a (i.e., faces the bumper member 110) in correspondence with the vehicle front direction Fr. The front wall 134a is provided to face the side surface 144 of the vehicle body 140, and an upper fixing portion 134c connected to the vehicle body 140 is provided at an upper end of the front wall 134 a. In this way, in the rear half 130b of the second mounting bracket 130, the base of the vertical wall 132, i.e., the side corresponding to the vehicle body 140, is provided with a sufficient height to reinforce the strength of the vertical wall 132. Further, the front wall portion 134a of the connecting portion 134 is provided to face the side surface 144 of the vehicle body 140 and is connected to the upper beam 142 of the vehicle body 140 via the upper fixing portion 134c, so that the front wall portion 134a can absorb the impact energy received by deformation accompanying the falling of the vertical wall portion 132, and the upper fixing portion 134c can stably support the bumper member 110 positioned in front of the vehicle body 140.
Further, in the present embodiment, a bent connecting portion 134d and a second bead shape portion 134e that straddles the bent connecting portion 134d are provided between the front wall portion 134a and the upper fixing portion 134c in the rear half portion 130b of the second mounting bracket 130, and the second bead shape portion 134e contacts the vehicle body 140. In this way, when a pedestrian collides with the vehicle in front of the vehicle, the vertical wall 132 can tilt toward the inside or the outside in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) with the bent portion 130c as the bending point P2 when receiving an impact load, and the coupling portion 134 can absorb the received impact energy. At this time, the vertical bent portion 136 between the vertical wall portion 132 and the front wall portion 134a of the coupling portion 134 bends to absorb the received impact energy, and the bent connecting portion 134d between the front wall portion 134a and the upper fixing portion 134c bends to absorb the received impact energy. Further, the second bead-shaped portion 134e is provided between the front wall portion 134a and the upper fixing portion 134c so as to straddle the bent connecting portion 134d and contact the vehicle body 140, so as to secure the strength of the second mounting bracket 130 when no impact is applied, so that the second mounting bracket 130 can stably support the bumper member 110 positioned in front of the vehicle body 140, and the bent connecting portion 134d generates a reaction force due to deformation when bent to absorb the impact energy applied, thereby suppressing the transmission of the impact to the vehicle body 140 side and achieving a pedestrian protection function.
However, the above description about the specific structure of the second mounting bracket 130 is only used in the present embodiment to describe an embodiment of a mounting bracket applied to the vehicle body front structure 100. In other embodiments, not shown, the front wall 134a, the first bead-shaped portion 134b, the upper fixing portion 134c, the bent connecting portion 134d, the second bead-shaped portion 134e, the vertical bent portion 136, and the like may be optionally provided according to the requirement, and the utility model is not limited to the specific structure of the second mounting bracket 130.
Referring to fig. 2, in the present embodiment, a vehicle body front structure 100 employs a first mounting bracket 120 and a second mounting bracket 130 to fix a bumper member 110 to a vehicle body 140. Preferably, the plurality of mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130) are symmetrically disposed with respect to the center line C of the vehicle body 140, such as the bent portions 120C of the two first mounting brackets 120 are symmetrically disposed with respect to the center line C of the vehicle body 140, and the bent portions 130C of the two second mounting brackets 130 are symmetrically disposed with respect to the center line C of the vehicle body 140. In this way, the first mounting bracket 120 and the second mounting bracket 130 can stably support the bumper member 110 on both left and right sides, and can absorb the impact energy received by both left and right sides through the inclination and deformation of the mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130).
In the present embodiment, the positions of the bent portions of the plurality of mounting brackets (i.e., the first mounting bracket 120 and the second mounting bracket 130) that form the bending points are different in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr). Preferably, as shown in fig. 2, the bent portion 120c of the first mounting bracket 120, which forms the bending point P1, located on the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) is located closer to the vehicle front direction Fr in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr), while the bent portion 130c of the second mounting bracket 130, which forms the bending point P2, located on the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) is located closer to the vehicle rear direction Rr in the vehicle body front-rear direction (i.e., the vehicle front direction Fr and the vehicle rear direction Rr).
As described above, since the bent portion 120c of the first mounting bracket 120 at the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) that forms the bending point P1 is located closer to the vehicle front direction Fr than the bent portion 130c of the second mounting bracket 130 at the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) that forms the bending point P2, the rear half portion 120b of the first mounting bracket 120 is longer than the rear half portion 130b of the second mounting bracket 130, and thus a large bending torque is easily generated, and the impact energy received when the bumper member 110 is deformed by the retraction thereof can be absorbed through a large stroke (stroke), so that the first mounting bracket 120 can increase the amount of the impact energy received through the improvement in properties such as material quality, plate back, shape, and the like, compared to the second mounting bracket 130.
Further, in the present embodiment, the bumper member 110 is bent toward the vehicle front direction Fr, and the strength of the mounting bracket (i.e., the first mounting bracket 120) located on the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) is higher than the strength of the mounting bracket (i.e., the second mounting bracket 130) located on the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R). In this way, the load of the vehicle body front structure 100 is highest on the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R), and therefore the first mounting bracket 120 having a high strength is provided on the inner side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R), and the load of the vehicle body front structure 100 on the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R) is small, and therefore the second mounting bracket 130 having a low strength is provided on the outer side in the vehicle width direction (i.e., the vehicle left direction L and the vehicle right direction R). As a result, the first mounting bracket 120 located inside has high strength and can withstand a high load, and the amount of absorption of the impact energy received can be increased.
However, the relative relationship between the first mounting bracket 120 and the second mounting bracket 130 is only used to describe one embodiment of the mounting bracket applied to the vehicle body front structure 100 in the present embodiment. In other embodiments, not shown, the number, the arrangement position, the strength, and the like of the first mounting bracket 120 and the second mounting bracket 130 can be adjusted according to the requirement. Alternatively, in other not-shown embodiments, the vehicle body front structure may employ only the first mounting bracket 120 or only the second mounting bracket 130. The present invention is not limited to the above-described embodiments.
As described above, in the vehicle body front structure of the present invention, the mounting bracket has the vertical wall portion extending in the vehicle body front-rear direction and the connecting portion extending from the vertical wall portion toward the vehicle body and connecting with the vehicle body, and the mounting bracket has the front half portion corresponding to the bumper member, the rear half portion corresponding to the vehicle body, and the bent portion located between the front half portion and the rear half portion, and the vertical wall portion is formed in the bent shape bent toward the inside or the outside in the vehicle width direction with the bent portion as the bending point in the planar direction. Preferably, the plurality of mounting brackets are provided in the vehicle width direction, and positions of bent portions of the plurality of mounting brackets, which form the bending points, are different in the front-rear direction of the vehicle body, or strengths of the plurality of mounting brackets are different. In this way, when a pedestrian collides in front of the vehicle, that is, when an impact is applied to the mounting bracket from the front of the bumper member, the vertical wall portion of the mounting bracket is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction with the bent portion as a bending point in the planar direction, so that the vertical wall portion can be tilted toward the inside or the outside in the vehicle width direction with the bent portion as a bending point when receiving an impact load, and the connecting portion absorbs the received impact energy, thereby suppressing the transmission of the impact to the vehicle body side and realizing a pedestrian protection function. Accordingly, the vehicle body front structure of the present invention is provided with the mounting bracket capable of absorbing impact on the vehicle body front side to improve the impact absorption performance.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A vehicle body front structure characterized by comprising:
a bumper member disposed in front of the vehicle body; and
a mounting bracket that fixes the bumper member to the vehicle body, wherein,
the mounting bracket has a vertical wall portion extending in a vehicle body longitudinal direction, and a connecting portion extending from the vertical wall portion toward the vehicle body and connected to the vehicle body, and the mounting bracket has a first end portion and a second end portion
The mounting bracket has a front half portion corresponding to the bumper member, a rear half portion corresponding to the vehicle body, and a bent portion between the front half portion and the rear half portion,
the longitudinal wall portion is formed in a bent shape that is bent toward the inside or the outside in the vehicle width direction with the bent portion as a bending point in the plane direction.
2. The vehicle body front structure according to claim 1,
in the rear half of the mounting bracket, the coupling portion includes an upper wall portion extending horizontally from the vertical wall portion toward the vehicle body via a horizontal curved portion, and a fold portion located on the upper wall portion, and the upper wall portion is provided with a bead-shaped portion that straddles the fold portion.
3. The vehicle body front structure according to claim 2,
the height of the vertical wall portion in the vehicle up-down direction gradually increases toward the vehicle body,
the upper end of the upper wall part is provided with an upper fixing part connected with the vehicle body, and
the lower end of the vertical wall portion is provided with a leg portion facing the upper wall portion, and a lower fixing portion provided on the leg portion and connected to the vehicle body.
4. The vehicle body front structure according to claim 3,
the foot portion is provided with a part mounting portion located on the rear side of the bumper member.
5. The vehicle body front structure according to claim 1,
in the rear half of the mounting bracket, the coupling portion has a front wall portion extending vertically from the vertical wall portion toward the vehicle body via a vertical bend portion, and a first bead shape portion that spans the vertical bend portion is provided between the front wall portion and the vertical wall portion.
6. The vehicle body front structure according to claim 5,
the height of the vertical wall portion in the vehicle up-down direction gradually increases toward the vehicle body,
the upper end of the front wall part is provided with an upper fixing part connected with the vehicle body, and
the front wall portion is provided to face a side surface of the vehicle body.
7. The vehicle body front structure according to claim 6,
a bent connecting portion and a second bead-shaped portion that straddles the bent connecting portion are provided between the front wall portion and the upper fixing portion.
8. The vehicle body front structure according to claim 1,
the longitudinal wall portion is provided with an upper flange and a lower flange at opposite ends in the vehicle up-down direction, and
the bending part is provided with a notch on at least one of the upper flange and the lower flange as the bending point.
9. The vehicle body front structure according to claim 1,
the mounting bracket is provided in plurality in the vehicle width direction, and
positions of the bent portions of the plurality of mounting brackets, which form the bending points, are different from each other in the front-rear direction of the vehicle body.
10. The vehicle body front structure according to claim 1,
a bumper fixing plate is disposed at the front half portion of the mounting bracket and connected to the bumper member via the bumper fixing plate,
the rear half of the mounting bracket is connected to an upper beam at a front end portion of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120542311.6U CN215553008U (en) | 2021-03-16 | 2021-03-16 | Vehicle body front structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120542311.6U CN215553008U (en) | 2021-03-16 | 2021-03-16 | Vehicle body front structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215553008U true CN215553008U (en) | 2022-01-18 |
Family
ID=79854150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120542311.6U Active CN215553008U (en) | 2021-03-16 | 2021-03-16 | Vehicle body front structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215553008U (en) |
-
2021
- 2021-03-16 CN CN202120542311.6U patent/CN215553008U/en active Active
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