CN218806147U - Vehicle body rear structure - Google Patents

Abstract

The utility model provides a vehicle body rear structure can ensure the degree of freedom of design of rear column and inner space, has good sound insulation performance simultaneously. A vehicle body rear structure comprising: a rear pillar that constitutes at least a part of a tailgate opening that opens in a front-rear direction at a rear portion of a vehicle body, the rear pillar having a hollow cross-sectional portion and a lamp portion provided outside the cross-sectional portion, wherein the cross-sectional portion includes: a first cross-sectional portion located above the lamp portion; and a second cross-sectional portion provided below the first cross-sectional portion, the second cross-sectional portion having a smaller cross-sectional area than the first cross-sectional portion, and the first cross-sectional portion including at least two plate-like foaming fillers facing each other.

Description

Vehicle body rear structure

Technical Field

The utility model relates to a rear structure of a vehicle body.

Background

In recent years, efforts to provide access to a sustainable transport system, which also takes into account the presence of persons who are in a weak position, such as elderly people and children who are involved in transportation, have been actively pursued. In order to achieve the object, research and development for further improving the safety or convenience of traffic are being pursued through developments relating to the amenability of the vehicle body. In general, a hollow structure having a closed cross section, such as a pillar, a door panel, a roof side panel, and a hood panel, of a vehicle body is filled with a foam material in an inner space thereof for shock absorption and sound insulation. Therefore, in the related art, various vehicle body rear structures have been developed for fixing a foam filler made of a foam material to a hollow structure of a vehicle body.

For example, prior art document 1 discloses a foamed packing for a hollow structure, which is attached to the hollow structure via a welding member, and which is made of a foamed material, and which can be attached efficiently and firmly by a simple operation. However, in the vehicle body, the rear pillar constituting a part of the back door generally has a complicated shape according to design and tends to have a large cross section, and therefore, there are problems in that the installation of the foamed packing is difficult and the sound insulation performance is degraded.

The object of the present invention is to improve the comfort of a vehicle body in order to solve the above-mentioned problems. And, in turn, contributes to the development of sustainable delivery systems.

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent application laid-open No. 2003-340857

SUMMERY OF THE UTILITY MODEL

The utility model provides a vehicle body rear structure can ensure the degree of freedom of design of rear column and inner space, has good sound insulation performance simultaneously.

The utility model provides a vehicle body rear portion structure, include: a rear pillar that constitutes at least a part of a tailgate opening that opens in a front-rear direction at a rear portion of a vehicle body, the rear pillar having a hollow cross-sectional portion and a lamp portion provided outside the cross-sectional portion, wherein the cross-sectional portion includes: a first cross-sectional portion located above the lamp portion; and a second cross-sectional portion provided below the first cross-sectional portion, the second cross-sectional portion having a smaller cross-sectional area than the first cross-sectional portion, and the first cross-sectional portion including at least two plate-like foaming fillers facing each other.

In an embodiment of the present invention, the rear side plate extending forward from the outside of the rear pillar in the vehicle width direction is formed with a reinforcing rib formed as a part of the opening portion above the rear side plate, and the foam filler is provided on an extension line in the length direction of the reinforcing rib.

In an embodiment of the invention, the cross section of the rear pillar is composed of a pillar inner panel, a pillar outer panel and a side outer panel, one of the foaming fillers is connected with a bracket of an L shape, and the bracket is welded to the pillar outer panel.

In an embodiment of the present invention, the bracket has a ridge portion at a central portion in a width direction of the bracket, and one of the foam fillers is fixed to both sides of the ridge portion.

In an embodiment of the present invention, one of at least two of the foaming fillers is combined in a vertical direction with respect to a wall portion of the rear pillar.

In an embodiment of the present invention, the side outer plate is provided with an air duct through which indoor and outdoor air passes, and the first cross-sectional portion is continuous with the cross-section provided with the air duct.

Based on the above, in the utility model discloses an among the rear structure of automobile body, through set up two at least relative foam filling agent in the first cross section portion in the top of lamp body portion, can make foam filling agent can exert the effect of similar baffle, and cut off the great first cross section portion in cross-section to can restrain vibration, noise etc.. Further, by dividing the foaming agent into a plurality of pieces, the weight of each foaming agent can be reduced, the assembling property can be improved, and the degree of freedom in designing the rear pillar can be improved. Thus, the degree of freedom in design of the rear pillar and the inner space can be ensured, and excellent sound insulation performance can be achieved.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a perspective view of a rear portion of a vehicle body according to an embodiment of the present invention;

FIG. 2 is a side schematic view of the rear vehicle body structure shown in FIG. 1;

FIGS. 3A to 3D are cross-sectional views of the rear structure of the vehicle body shown in FIG. 2 at line A-A, line B-B, line C-C, and line D-D, respectively;

FIG. 4A is a perspective view of the rear structure of the vehicle body shown in FIG. 2 with the rear outer panel removed;

FIG. 4B is a schematic side view of the rear vehicle body structure shown in FIG. 4A;

FIGS. 5A and 5B are schematic partial sectional views of the first cross-sectional portions of FIGS. 4A and 4B, respectively;

FIGS. 5C and 5D are schematic views of the stent of FIG. 5A before and after installation of one of the foam fillers, respectively;

FIG. 6A is a schematic view of the rear pillar of the vehicle body rear structure as viewed from the vehicle rear outer side inward;

FIG. 6B is a side schematic view of a rear pillar of the vehicle body rear structure;

FIG. 6C is a schematic view of a rear pillar of the vehicle body rear structure as viewed from the vehicle interior rear side outward;

FIG. 7A is a side schematic view of the rear vehicle body structure shown in FIG. 1;

fig. 7B is a cross-sectional view of the rear vehicle body structure shown in fig. 7A taken along line E-E.

Description of reference numerals:

100: a vehicle body rear structure;

110: a rear pillar;

111: an upright column inner plate;

112: an upright column outer plate;

113: a side outer panel;

120: a rear side plate;

121: reinforcing ribs;

122: an opening part;

130: a support;

131: a ridge line part;

FF1, FF2: a foaming filler;

LR: a lamp body portion;

OP: a tail gate opening;

ROP: rear outer panel

And (3) SC: a cross-sectional portion;

SC1: a first cross-sectional portion;

and (2) SC2: a second section portion;

WP: a wall portion;

WT: an air duct.

Detailed Description

Fig. 1 is a perspective view of a rear portion of a vehicle body according to an embodiment of the present invention; FIG. 2 is a side schematic view of the rear vehicle body structure shown in FIG. 1; FIGS. 3A to 3D are cross-sectional views of the rear structure of the vehicle body shown in FIG. 2 at line A-A, line B-B, line C-C, and line D-D, respectively; FIG. 4A is a perspective view of the rear structure of the vehicle body shown in FIG. 2 with the rear outer panel removed; FIG. 4B is a schematic side view of the rear vehicle body structure shown in FIG. 4A; FIGS. 5A and 5B are schematic partial sectional views of the first cross-sectional portions of FIGS. 4A and 4B, respectively; FIGS. 5C and 5D are schematic views of the stent of FIG. 5A before and after installation of one of the foam fillers, respectively; FIG. 6A is a schematic view of the rear pillar of the vehicle body rear structure as viewed from the vehicle rear outer side inward; FIG. 6B is a side schematic view of a rear pillar of the vehicle body rear structure; FIG. 6C is a schematic view of a rear pillar of the vehicle body rear structure as viewed from the vehicle interior rear side outward; FIG. 7A is a side schematic view of the rear vehicle body structure shown in FIG. 1; fig. 7B is a cross-sectional view of the rear vehicle body structure shown in fig. 7A taken along line E-E. For convenience, the front-rear direction, the left-right direction, and the up-down direction of the vehicle are defined as shown in the drawing, and the configurations of the respective portions will be described according to the definitions. The front-rear direction, the left-right direction, and the up-down direction correspond to the longitudinal direction, the vehicle width direction, and the height direction of the vehicle, respectively. In the present embodiment, the vehicle body rear structure 100 refers to a partial structure in the vicinity of a rear pillar of a tailgate located at the rear end in a vehicle. The specific structure of the vehicle body rear structure 100 will be described below with reference to fig. 1 to 7B.

Referring to fig. 1 and 2, the rear structure 100 of the vehicle body includes a rear pillar 110. The rear pillar 110 forms at least a part of a tailgate opening OP that opens in the front-rear direction at the rear of the vehicle body, and the rear pillar 110 has a hollow cross-sectional portion SC and a lamp body portion LR provided outside the cross-sectional portion SC.

Specifically, as shown in fig. 2 to 3D, in the present embodiment, the cross-sectional portion SC includes a first cross-sectional portion SC1 and a second cross-sectional portion SC2. As shown in fig. 2, the first cross-sectional portion SC1 is located above the upper wall portion LR1 of the lamp portion LR, the second cross-sectional portion SC2 is provided below the first cross-sectional portion SC1, and the cross-sectional area of the second cross-sectional portion SC2 is smaller than that of the first cross-sectional portion SC1 as shown in fig. 3A to 3D. Further, as shown in fig. 3A and 4A to 5D, in the present embodiment, the first cross-sectional portion SC1 includes at least two plate-like foam fillers FF1, FF2 facing each other. For example, in the embodiment, the foam fillers FF1 and FF2 are made of foam materials, and in the subsequent baking process, the foam fillers FF1 and FF2 are foamed or expanded by the baking heat (e.g., 110-190 ℃) to form foams, so as to fill the inner space of the rear pillar 110 in the first cross-sectional portion SC 1.

By providing at least two foam fillers FF1, FF2 facing each other in the first cross-sectional portion SC1 above the upper wall portion LR1 of the lamp body portion LR, the foam fillers FF1, FF2 can function like a partition plate to partition the first cross-sectional portion SC1 having a large cross section, and vibration, noise, and the like can be suppressed. Further, by dividing the foam fillers FF1 and FF2 into a plurality of pieces, the weight of each of the foam fillers FF1 and FF2 can be reduced, the assembling property can be improved, and the degree of freedom in designing the rear pillar 110 can be improved. In this way, it is possible to ensure the degree of freedom in designing the rear pillar 110 and the internal space, while having good sound insulation performance.

Further, as shown in fig. 4A and 4B, in the present embodiment, when the rear outer panel ROP is removed, it can be seen that the rear side panel 120 extending forward from the vehicle width direction outer side of the rear pillar 110 is formed with the bead 121, the bead 121 is formed as a part of the opening portion 122 above the rear side panel 120, and the opening portion 122 here is a small window provided above the rear side panel 120. The foam fillers FF1 and FF2 are provided on the extension line of the bead 121 in the longitudinal direction. By placing the foam fillers FF1 and FF2 on the extension lines of the beads 121 in this manner, the foam fillers can be connected to a highly rigid position, and can be firmly fixed, so that noises such as vibration and noise can be more effectively suppressed.

On the other hand, as shown in fig. 3A and 3B, and fig. 6A to 6C, in the present embodiment, the cross section of the rear pillar 110 is composed of a pillar inner panel 111, a pillar outer panel 112, and a side outer panel 113. As shown in fig. 5A, 5C, and 5D, the foam filler FF2, which is one of the foam fillers FF1 and FF2, is connected to an L-shaped bracket 130, and the bracket 130 is welded to the pillar outer panel 112. In this way, the rear foam filler FF2 is connected to the pillar outer panel 112 by the L-shaped bracket 130, and the bracket 130 for fixing the foam filler FF2 can be attached without affecting the design surface, which is the appearance of the pillar outer panel 112. Further, by making the bracket 130L-shaped, the partition can be fixed at an angle that effectively partitions the cross-sectional area.

As shown in fig. 5C and 5D, in the present embodiment, the holder 130 has a ridge line portion 131 at the center in the width direction of the holder 130, and the foam filler FF2 is fixed to both sides of the ridge line portion 131. By providing the foam filler FF2 on both sides of the ridge line portion 131 of the bracket 130 in this manner, it is possible to improve the ease of assembly and the joint strength of the foam filler FF2 and to obtain a certain degree of freedom in designing the rear pillar 110.

Further, as shown in fig. 5B and 5D, in the present embodiment, the foam filler FF2 is joined in the perpendicular direction to the wall portion WP of the rear pillar 110. In this way, when spot welding the rear pillar 110, the working area of the welding machine can be secured, and thus vertically installing the foaming filler FF2 improves the manufacturability of the rear pillar 110.

As shown in fig. 7A and 7B, in the present embodiment, the side outer panel 113 of the rear pillar 110 is provided with the air passage WT through which the indoor and outdoor air passes, and the first cross-sectional portion SC1 located above the upper wall portion LR1 of the lamp body LR is continuous with the cross section provided with the air passage WT. In this way, the first cross-sectional portion SC1 on which the foam fillers FF1, FF2 are mounted is continuous with the cross-sectional surface on which the air duct WT is mounted, and the noise of the airflow entering from the air duct WT can be suppressed by the foam fillers FF1, FF2.

In summary, in the vehicle body rear structure of the present invention, by providing at least two opposite foaming fillers in the first cross-sectional portion above the lamp body portion, the foaming fillers can exert the function similar to the partition plate to partition the first cross-sectional portion having a large cross section, thereby suppressing vibration, noise, and the like. Further, by dividing the foaming filler into a plurality of pieces, the weight of each foaming filler can be reduced, the assembling property can be improved, and the degree of freedom in designing the rear pillar can be improved. Thus, the degree of freedom in design of the rear pillar and the inner space can be ensured, and excellent sound insulation performance can be achieved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand 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; such modifications or substitutions do not depart from the scope of the embodiments of the present invention, and the essence of the corresponding technical solutions is that.

Claims (6)

1. A vehicle body rear structure characterized by comprising:

a rear pillar constituting at least a part of a tailgate opening opened in a front-rear direction at a rear portion of a vehicle body, the rear pillar having a hollow cross-sectional portion and a lamp portion provided outside the cross-sectional portion, wherein

The cross-sectional portion includes:

a first cross-sectional portion located above the lamp portion; and

a second section portion provided below the first section portion, the second section portion having a smaller cross-sectional area than the first section portion, and

the first cross-sectional portion includes at least two plate-like foaming fillers facing each other.

2. The vehicle body rear structure according to claim 1, characterized in that a rear side plate extending forward from the vehicle width direction outer side of a rear pillar is formed with a bead that is formed as a part of an opening portion above the rear side plate, and the bead is formed

The foaming filler is arranged on an extension line of the reinforcing rib in the length direction.

3. The vehicle body rear structure according to claim 1,

the cross section of the rear column consists of an inner column plate, an outer column plate and a side outer plate,

one of the at least two foam fillers is connected with an L-shaped bracket welded to the pillar outer panel.

4. The vehicle body rear structure according to claim 3,

the holder has a ridge line portion at a central portion in a width direction of the holder, and one of the foam fillers is fixed to both sides of the ridge line portion.

5. The vehicle body rear structure according to claim 4,

one of at least two of the foaming fillers is joined in a vertical direction with respect to a wall portion of the rear pillar.

6. The vehicle body rear structure according to claim 5,

the side outer plate is provided with an air duct for allowing indoor and outdoor air to pass through, and the first section is continuous with the section provided with the air duct.

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