Automobile rear structure

Abstract

This utility model provides a rear structure for an automobile. The rear structure includes a rear panel with a ventilation bend, and a reinforcing member extending along the width of the vehicle and obscuring the ventilation bend is installed on the rear panel. The reinforcing member and the rear panel form a closed section, and an opening opening downwards is formed on the reinforcing member. This opening communicates with the ventilation bend through the space between the reinforcing member and the rear panel. Based on the above structure of this utility model, air circulation between the inside and outside of the vehicle compartment and the rigidity of the rear panel can be ensured, while noise entering the vehicle compartment can be reduced.

Description

Technical Field

[0001] This utility model relates to a rear structure of an automobile. Background Technology

[0002] Typically, a ventilation bend (also called a ventilation balance pipe) is installed on the back panel at the rear of the cargo compartment of trucks and other vehicles. This allows air to circulate between the inside and outside of the cargo compartment, ensuring that the doors are not affected by air pressure differences when opening and closing. In other words, by installing a ventilation bend on the back panel, the resistance to opening and closing the doors can be reduced.

[0003] However, when a rear panel with ventilation bends is used, the rigidity of the rear panel is reduced because of the ventilation bend openings. In addition, external noise entering through the ventilation bends will enter the passenger compartment through the gap between the rear seat back and the rear panel, affecting the passenger environment. Utility Model Content

[0004] In view of the above situation, the purpose of this utility model is to provide a rear structure of a car that can both ensure air circulation inside and outside the car body and the rigidity of the rear panel, and suppress noise from entering the car body.

[0005] As a technical solution to the above-mentioned technical problems, the present invention provides a rear structure of an automobile, which includes a rear panel with a ventilation bend. The rear structure is characterized in that a reinforcing member extending along the width of the vehicle and covering the ventilation bend is installed on the rear panel. The reinforcing member and the rear panel form a closed section. An opening that opens downwards is formed on the reinforcing member. The opening communicates with the ventilation bend through the space between the reinforcing member and the rear panel.

[0006] The advantages of the above-mentioned rear structure of automobiles of this utility model are that it can ensure air circulation inside and outside the car and the rigidity of the rear panel, while also suppressing noise from entering the car.

[0007] Specifically, since a ventilation bend is provided on the rear panel and an opening is formed on the reinforcing member, the opening is connected to the ventilation bend through the space between the reinforcing member and the rear panel. Thus, a path for air circulation between the inside and outside of the carriage is formed between the opening and the ventilation bend, thereby achieving air circulation and air pressure balance between the inside and outside of the carriage and reducing the resistance to opening and closing the doors.

[0008] Meanwhile, since the reinforcing member blocks the ventilation bend and the opening formed on the reinforcing member faces downward, the noise propagation path from the ventilation bend to the opening is a labyrinthine bend. The noise will be greatly attenuated as it propagates along this labyrinthine bend, thereby reducing the noise entering the carriage.

[0009] Furthermore, although the rigidity of the rear panel itself is reduced due to the presence of ventilation bends, the rigidity of the rear panel is improved by the reinforcing members installed on the rear panel and forming a closed section with it.

[0010] That is, the reinforcing component of this utility model not only improves (compensates for) the rigidity of the back panel, but also has a sound insulation function. Therefore, compared with the structure of setting a sound insulation cover on the ventilation bend, it is more conducive to suppressing the rise in equipment cost.

[0011] In addition, in the above-mentioned rear structure of the automobile of this utility model, it is preferable that the plurality of ventilation bends are arranged at intervals along the width direction in the middle area of ​​the rear panel in the height direction.

[0012] Previously, ventilation bends were mostly located in the lower part of the rear panel along its height. If the reinforcing members were placed in the lower part of the rear panel to conceal the ventilation bends, the effect of improving the rigidity of the rear panel would be reduced. Based on the above structure, since multiple ventilation bends are located in the middle part of the rear panel along its height, the reinforcing members that conceal these ventilation bends also need to be installed in the middle part of the rear panel along its height. This allows the reinforcing members to fully exert their function of improving the rigidity of the rear panel.

[0013] In addition, in the above-described automotive rear structure of this utility model, preferably, the reinforcing member has a front wall that is arranged facing each other at a distance from the rear panel and extends along the vehicle width direction, an upper wall that extends from the upper edge of the front wall toward the rear panel, a lower wall that extends from the lower edge of the front wall toward the rear panel, an upper edge that extends upward from the rear end edge of the upper wall parallel to the rear panel, and a lower edge that extends downward from the rear end edge of the lower wall parallel to the rear panel. The reinforcing member is installed on the rear panel with the upper edge and the lower edge respectively engaged with the rear panel, and the front wall blocking the ventilation bend on the rear panel. A plurality of openings are provided on the lower wall of the reinforcing member at intervals along the vehicle width direction.

[0014] Based on the above structure, it is possible to achieve a reinforcing component that can both enhance the rigidity of the rear panel and suppress noise from entering the passenger compartment.

[0015] In addition, in the above-mentioned rear structure of the automobile of this utility model, it is preferable that the sum of the opening areas of the plurality of openings on the reinforcing member is greater than the sum of the opening areas of the plurality of ventilation bends on the rear panel.

[0016] Based on the above structure, air circulation inside and outside the carriage can be ensured more effectively. Attached Figure Description

[0017] Figure 1 This is a simplified perspective view of the rear structure of a car according to one embodiment of the present invention.

[0018] Figure 2 It means Figure 1 A simplified three-dimensional diagram of the reinforcing component in the diagram.

[0019] Figure 3 It is a simplified cross-sectional diagram showing the airflow path and noise propagation path from the ventilation bend on the rear panel to the opening on the reinforcing member. Detailed Implementation

[0020] The following description of the rear structure of the automobile according to the present invention will be made with reference to the accompanying drawings.

[0021] Figure 1 This is a simplified perspective view showing the rear structure of the automobile according to this embodiment. Figure 1 The body frame 1 shown is, for example, the body frame used in vehicles such as pickup trucks. Figure 1 As shown, the vehicle frame 1 has a rear back panel 2 and a reinforcing member 3 disposed on the rear back panel 2.

[0022] The rear panel 2 is located at the rear of the passenger compartment of the vehicle 1, closing the rear opening of the passenger compartment. The rear panel 2 is made of, for example, sheet metal. A ventilation bend 21 is provided on the rear panel 2.

[0023] The reinforcing member 3, for example, is made of sheet metal and is used to improve the rigidity of the back panel 2. Figure 1 As shown, the reinforcing member 3 is installed on the side of the rear panel 2 facing the interior of the vehicle, extending in the vehicle width direction.

[0024] Figure 2 It means Figure 1 A simplified three-dimensional diagram of the reinforcing member 3 in the diagram. (See attached diagram.) Figure 1 and Figure 2 As shown, the reinforcing member 3 includes: a long strip-shaped front wall 30 that is arranged facing each other at a distance from the rear panel 2 and extends along the vehicle width direction; an upper wall 31 that extends perpendicularly from the upper edge of the front wall 30 toward the rear panel 2; a lower wall 32 that extends perpendicularly from the lower edge of the front wall 30 toward the rear panel 2; an upper edge 33 that extends upward parallel to the rear panel 2 from the rear end edge of the upper wall 31; and a lower edge 34 that extends downward parallel to the rear panel 2 from the rear end edge of the lower wall 32.

[0025] The reinforcing member 3 with the above structure is positioned approximately in the middle region of the height direction of the rear back panel 2, with its upper edge 33 and lower edge 34 respectively joining the rear back panel 2. Thus, a closed section is formed between the reinforcing member 3 and the rear back panel 2.

[0026] Previously, to ensure air circulation between the inside and outside of the passenger compartment and to guarantee smooth door opening and closing (with minimal resistance), multiple ventilation bends were typically installed in the lower part of the rear panel 2 along the vehicle's height. However, external noise entering through these ventilation bends can seep into the passenger compartment through the gap between the rear seat back (not shown) and the rear panel 2, causing discomfort to passengers. To solve this problem, soundproof covers could be installed on the ventilation bends, but this would increase equipment costs.

[0027] In this embodiment, the ventilation bend is positioned within the area where the reinforcing member 3 is installed, thereby enabling the reinforcing member 3 to function as a soundproof enclosure. This will be explained in detail below.

[0028] like Figure 1 As shown, in the middle area of ​​the rear panel 2 in the vehicle height direction, that is, the area blocked by the front wall 30 of the reinforcing member 3, a plurality of ventilation bends 21 are provided at intervals along the vehicle width direction. Each ventilation bend 21 has an opening on the rear panel 2, through which external air can flow into the passenger compartment and air inside the passenger compartment can flow out of the passenger compartment.

[0029] On the other hand, multiple openings 35 are provided on the reinforcing member 3. Specifically, as shown in the figure... Figure 2 As described above, a plurality of openings 35 (here, for example, four) are provided at intervals along the width direction on the lower wall 32 of the reinforcing member 3. Here, the sum of the opening areas of the four openings 35 is greater than the sum of the opening areas of the two ventilation bends 21.

[0030] Therefore, the opening 35 on the lower wall 32 of the reinforcing member 3 can communicate with the ventilation bend 21 on the rear panel 2 through the space formed between the reinforcing member 3 and the rear panel 2. Furthermore, since the sum of the opening areas of the four openings 35 is greater than the sum of the opening areas of the two ventilation bends 21, sufficient air circulation and air pressure balance inside and outside the carriage can be ensured.

[0031] Figure 3 This is a simplified cross-sectional diagram showing the airflow path and noise propagation path from the ventilation bend 21 of the rear panel 2 to the opening 35 of the reinforcing member 3. (See diagram for example.) Figure 3 As shown by the thick solid arrow in the figure, the airflow path from the opening 35 of the reinforcing member 3 to the ventilation bend 21 is a labyrinthine bend path. That is, the airflow flowing horizontally bends upward and enters the space formed between the reinforcing member 3 and the back panel 2 through the opening 35. After flowing upward in this space, it bends horizontally and enters the ventilation bend 21.

[0032] In this way, the air inside the carriage can communicate with the outside air through the opening 35 on the reinforcing member 3 and the ventilation bend 21 on the rear panel 2, thereby keeping the air pressure inside and outside the carriage consistent. As a result, the opening and closing of the doors will not be affected by the air pressure difference, and the resistance to the opening and closing of the doors will be reduced.

[0033] On the other hand, similar to the airflow path described above, the noise propagation path from the ventilation bend 21 to the opening 35 of the reinforcing member 3 is also a labyrinthine bend. Therefore, although external noise entering through the ventilation bend 21 during vehicle operation also enters the passenger compartment through the gap between the rear seat back (not shown) and the rear panel 2, the noise is significantly attenuated as it propagates along the labyrinthine bend path, thus reducing the amount of external noise entering the passenger compartment. This prevents external noise entering through the ventilation bend 21 from disturbing passengers inside the passenger compartment.

[0034] Furthermore, although the rigidity of the rear panel 2 itself is reduced due to the presence of the ventilation bend 21, in this embodiment, since a reinforcing member 3 extending in the vehicle width direction is provided in the area of ​​the rear panel 2 where the ventilation bend 21 is provided (i.e., the middle area in the vehicle height direction), and this reinforcing member 3 forms a closed section with the rear panel 2, the rigidity of the rear panel 2 can be improved (compensated) by the reinforcing member 3. That is, the portion of the rear panel 2 where the ventilation bend 21 is provided is reinforced by the reinforcing member 3.

[0035] Therefore, as described above, the rear structure of the automobile based on this utility model can ensure air circulation inside and outside the passenger compartment and the rigidity of the rear panel 2, while also reducing noise entering the passenger compartment. Moreover, the reinforcing member 3 used to improve the rigidity of the rear panel 2 also has a sound insulation function, thus it is more conducive to suppressing the increase in equipment costs compared with the structure of setting a sound insulation cover on the ventilation bend 21.

[0036] However, this utility model is not limited to the above-described embodiments and can be applied and modified in various ways. For example, there are no particular limitations on the number and spacing of the ventilation bends 21 on the back panel 2 and the openings 35 on the reinforcing member 3, which can be appropriately set according to actual needs.

[0037] Furthermore, there are no particular limitations on the shape of the reinforcing member 3; for example, it can also be a shape that is slightly curved in the vehicle width direction.

Claims

1. A rear structure for a car, comprising a rear panel with ventilation bends, characterized in that: A reinforcing member extending along the vehicle width direction and obscuring the ventilation bend is installed on the rear panel. The reinforcing member and the rear back plate form a closed cross section. An opening is formed on the reinforcing member that opens downwards and communicates with the ventilation bend via the space between the reinforcing member and the rear panel.

2. The rear structure of an automobile as described in claim 1, characterized in that: Multiple ventilation bends are arranged at intervals along the vehicle width in the middle region of the rear panel in the height direction.

3. The rear structure of an automobile as described in claim 1 or 2, characterized in that: The reinforcing member has a front wall that is spaced apart from the rear panel and faces it and extends in the vehicle width direction, an upper wall that extends from the upper edge of the front wall toward the rear panel, a lower wall that extends from the lower edge of the front wall toward the rear panel, an upper edge that extends upward from the rear end edge of the upper wall parallel to the rear panel, and a lower edge that extends downward from the rear end edge of the lower wall parallel to the rear panel. The reinforcing member is mounted on the rear back panel with its upper and lower edges respectively engaged with the rear back panel, and the front wall obstructing the ventilation bend on the rear back panel. On the lower wall of the reinforcing member, a plurality of openings are provided at intervals along the vehicle width direction.

4. The rear structure of an automobile as described in claim 3, characterized in that: The sum of the opening areas of the plurality of openings on the reinforcing member is greater than the sum of the opening areas of the plurality of ventilation bends on the rear panel.

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