Vehicle rear structure

Abstract

The rear structure of the vehicle is designed to suppress the transmission of noise from outside the vehicle into the vehicle interior through the gap between the outer shell of the woofer, which is located inside the rear floor pan, and the rear floor pan. [Solution] In the rear of the vehicle body 10A1, a sealing material 30 is placed between a flange portion 16A extending outward from the rear floor pan from the upper end of the peripheral wall portion 16B of the rear floor pan 16, and a flange portion 26D extending outward from the case 26 on the vehicle side of the flange portion 16A from the case 26.

Description

Technical Field

[0001] The present invention relates to a vehicle rear structure.

Background Art

[0002] The following Patent Document 1 discloses an invention related to a vehicle body rear structure. In this vehicle body rear structure, a rear floor pan is disposed with respect to the rear end portion of a rear floor panel.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, various devices can be arranged in the rear floor pan. For example, a configuration in which a woofer is installed in the rear floor pan is also conceivable.

[0005] However, in the above prior art, when a woofer is installed in the rear floor pan, it is conceivable that noise outside the vehicle compartment propagates into the vehicle compartment through the gap between the rear floor pan and the outer shell of the woofer.

[0006] In consideration of the above facts, an object of the present invention is to obtain a vehicle rear structure capable of suppressing the propagation of noise outside the vehicle compartment into the vehicle compartment through the gap between the outer shell of a woofer disposed in the rear floor pan and the rear floor pan.

Means for Solving the Problems

[0007] The vehicle rear structure according to the first embodiment includes a rear floor pan made of resin and constituting a part of the underside of the vehicle at the rear of the vehicle body, a woofer disposed inside the rear floor pan, a first flange portion extending outward from the upper end of the outer circumference of the rear floor pan, and a sealing material disposed between a case constituting the outer shell of the woofer and a second flange portion extending outward from the case on the vehicle side of the first flange portion.

[0008] According to the first embodiment of the vehicle rear structure, a portion of the underside of the vehicle at the rear of the vehicle body is made up of a rear floor pan formed of resin. A woofer is then positioned inside the rear floor pan.

[0009] By the way, if a subwoofer is installed inside the rear floor pan, it is possible that noise from outside the vehicle will be transmitted into the vehicle interior through the gap between the rear floor pan and the case that makes up the subwoofer's outer shell.

[0010] In this embodiment, a sealing material is placed between a first flange portion extending outward from the upper end of the outer circumference of the rear floor pan and a second flange portion extending outward from the woofer case on the vehicle-upper side of the first flange portion. Therefore, in this embodiment, the space between the rear floor pan and the woofer case can be sealed with the sealing material.

[0011] The vehicle rear structure according to the second embodiment is characterized in that, in the vehicle rear structure according to the first embodiment, the sealing material is a foamed sealing material.

[0012] According to the vehicle rear structure of the second embodiment, the sealing material between the first flange portion of the rear floor pan and the second flange portion of the woofer is a foamed sealing material, and the sealing material can be made to adhere tightly to the first flange portion and the second flange portion by compressing the sealing material with the weight of the woofer. [Effects of the Invention]

[0013] As described above, the vehicle rear structure according to the present invention has the excellent effect of suppressing the transmission of noise from outside the vehicle into the vehicle interior through the gap between the outer shell of the woofer placed in the rear floor pan and the rear floor pan. [Brief explanation of the drawing]

[0014] [Figure 1] This is a schematic plan view showing the configuration of a vehicle to which the vehicle rear structure according to this embodiment is applied. [Figure 2] This is a schematic cross-sectional view (showing a state cut along line 2-2 in Figure 1) illustrating the configuration of the main parts of a vehicle to which the vehicle rear structure according to this embodiment is applied. [Modes for carrying out the invention]

[0015] An example of the rear vehicle structure according to the present invention will be described below with reference to Figures 1 and 2. In each figure, arrows FR indicate the front of the vehicle, arrows UP indicate the upper side of the vehicle, and arrows RH indicate the right side in the vehicle width direction.

[0016] First, using Figure 1, we will describe the general configuration of "Vehicle 10" to which the rear body structure according to this embodiment is applied.

[0017] Vehicle 10 comprises an aluminum die-cast front part (not shown) that forms the front portion of the vehicle body 10A, a center part (not shown) that forms the center of the vehicle in the front-rear direction and includes a battery pack and a center frame that holds the battery pack, and an aluminum die-cast rear part 12 that forms the rear portion of the vehicle. The front part is equipped with a power unit (not shown) including a motor, and the vehicle 10 moves when this power unit is driven by electricity supplied from the battery pack.

[0018] Explaining the structure of the rear part 12 in detail, the rear part 12 includes a pair of rear wheel house parts (not shown) that form the outer part in the vehicle width direction, and a rear floor part 14 whose thickness direction is the vehicle up-and-down direction, extends in the vehicle width direction and the vehicle front-rear direction, and is spanned between the pair of rear wheel house parts.

[0019] And, the peripheral edge part 14A on the vehicle rear side of the rear floor part 14 is recessed in a substantially U shape in which the central part in the vehicle width direction protrudes forward in the vehicle front-rear direction as viewed from the vehicle up-and-down direction and widens toward the vehicle rear side.

[0020] Also, on the vehicle rear side of the rear floor part 1, as shown in FIG. 2, a resin "rear floor pan 16" is arranged. This rear floor pan 16 includes a "flange part 16A" as a first flange part that forms the upper part of the vehicle, a "peripheral wall part 16B" as an outer peripheral part that forms the main part thereof, and a bottom wall part 16C that forms the lower part of the vehicle, and is formed in a box shape with the upper side of the vehicle open.

[0021] Specifically, the peripheral wall part 16B is formed in a polygonal cylindrical shape as viewed from the vehicle up-and-down direction, and the cross section (flat cross section) of the peripheral wall part 16B as viewed from the vehicle up-and-down direction becomes smaller from the vehicle upper side toward the vehicle lower side. In addition, the upper and front part of the vehicle of the peripheral wall part 16B is formed along the peripheral edge part 14A of the rear floor part 14.

[0022] Also, from the peripheral edge part (upper end) on the vehicle upper side of the peripheral wall part 16B, a flange part 16A extends outside the rear floor pan 16 along this peripheral edge part. The flange part 16A is located on the vehicle upper side of the rear floor part, and a part of the vehicle front side thereof covers the rear floor part 14 from the vehicle upper side. On the other hand, the lower side of the vehicle of the peripheral wall part 16B is in a state of being blocked by the bottom wall part 16C, and the bottom wall part 16C forms a part of the lower side of the vehicle of the "rear part of the vehicle body 10A1".

[0023] Also, on the vehicle rear side of the rear part 12, a pair of rear crash boxes 18 extending from the rear part 12 toward the vehicle rear side are arranged. A flange portion 16A of the rear crash box 18 is attached by a mounting member not shown in the figure. Note that the outer portion of the rear crash box 18 in the vehicle width direction is covered from above the vehicle by a metal floor side plate 20, and this floor side plate 20 is attached to the rear crash box 18 by a mounting member not shown in the figure. And the floor side plate 20 constitutes a part of the floor surface 22A of the passenger compartment 22 together with the rear floor portion 14.

[0024] On the other hand, inside the rear floor pan 16, "woofer 24" is arranged, and this woofer 24 includes a resin "case 26" constituting its outer shell and various devices such as a speaker unit 28.

[0025] ​​​​​​​​​​​​​​​​

[0029] In this embodiment, as shown in Figure 2, a portion of the underside of the vehicle at the rear 10A1 of the vehicle body is made up of a rear floor pan 16 made of resin. A woofer 24 is positioned inside the rear floor pan 16.

[0030] By the way, if the woofer 24 is installed inside the rear floor pan 16, it is conceivable that noise from outside the passenger compartment 22 will be transmitted into the passenger compartment 22 through the gap between the rear floor pan 16 and the case 26 that constitutes the outer shell of the woofer 24.

[0031] In this embodiment, a sealing material 30 is placed between the flange portion 16A extending outward from the rear floor pan from the upper end of the peripheral wall portion 16B of the rear floor pan 16, and the flange portion 26D extending outward from the case 26 on the vehicle-upper side of the flange portion 16A. Therefore, in this embodiment, the space between the rear floor pan 16 and the case 26 can be sealed with the sealing material 30.

[0032] Furthermore, in this embodiment, the sealing material 30 is a foamed sealing material, and the weight of the woofer 24 compresses the sealing material 30, allowing the sealing material 30 to adhere tightly to the flange portion 16A and the flange portion 26D.

[0033] As described above, in this embodiment, it is possible to suppress the propagation of noise from outside the passenger compartment 22 into the passenger compartment 22 through the gap between the case 26 of the woofer 24, which is located inside the rear floor pan 16, and the rear floor pan 16.

[0034] In the embodiment described above, the sealing material 30 was made of a foamed sealing material, but depending on the specifications of the vehicle 10, the sealing material 30 may be made of a wet sealing material or the like. [Explanation of Symbols]

[0035] 10 vehicles 10A1 Rear of the vehicle 16 Rear floor pan 16A Flange section (first flange section) 16B Peripheral wall (outer periphery) 24 Woofer 26 cases 26D Flange section (second flange section) 30 sealant

Claims

1. A rear floor pan, formed from resin, which constitutes a part of the underside of the vehicle at the rear of the vehicle body, The woofer is positioned inside the rear floor pan, A sealing material is disposed between a first flange portion extending outward from the upper end of the outer circumference of the rear floor pan and a second flange portion extending outward from the case that constitutes the outer shell of the woofer on the vehicle side of the first flange portion, A vehicle rear structure having the following.

2. The aforementioned sealing material is a foamed sealing material. The vehicle rear structure according to claim 1.

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