Exhaust hook assembly and automobile with same

Abstract

The utility model relates to the technical field of automobile exhaust systems, in particular to an exhaust hook assembly and an automobile with the exhaust hook assembly. The exhaust hook assembly comprises an exhaust hook and a fixing piece, the fixing piece is used for fixing the exhaust hook to a vehicle body, the fixing piece comprises a mounting plate and a turnup edge arranged on the edge of the mounting plate, and the exhaust hook is fixedly connected with the mounting plate and the turnup edge. According to the exhaust hook assembly, the exhaust hook is fixed to the vehicle body through the fixing piece, and the exhaust hook is fixedly connected with the mounting plate and the turned-over edge, so that the dynamic stiffness and the connection strength of the exhaust hook are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive exhaust system technology, and in particular to an exhaust hook assembly and an automobile having the same. Background Technology

[0002] The exhaust system of a range-extended electric vehicle (REEV) not only needs to effectively discharge combustion gases but also ensure that NVH (Noise, Vibration, and Harshness) remains within acceptable ranges during vehicle operation to improve comfort. When the exhaust system is operating, the airflow within the exhaust pipe produces pulsations, which are transmitted to the floor through the exhaust hooks, thus exciting the vehicle body. Improper hook placement or flawed structural design can cause vibrations to concentrate in certain parts of the vehicle body, leading to NVH problems.

[0003] Existing exhaust hooks are typically mounted on the front subframe, where the structural rigidity is relatively weak, making it difficult to effectively resist the dynamic loads generated by the exhaust system during operation, thus increasing the likelihood of NVH (noise, vibration, and harshness) problems. Since exhaust hooks are usually long cantilever structures with low dynamic stiffness, they cannot effectively suppress vibrations transmitted by the exhaust system. Furthermore, the hooks are typically fixed to the front subframe by welding, a method with poor durability and adaptability, and the welds are prone to tearing, resulting in weak connection strength. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor dynamic stiffness and weak connection strength of exhaust hooks.

[0005] To solve the above problems, this utility model proposes an exhaust hook assembly, including an exhaust hook and a fixing member. The fixing member is used to fix the exhaust hook to the vehicle body. The fixing member includes a mounting plate and a flange provided on the edge of the mounting plate. The exhaust hook is fixedly connected to the mounting plate and the flange.

[0006] Optionally, the flange includes a first flange, a second flange, and a fixed flange connected between the first flange and the second flange. The first flange and the second flange are respectively connected to adjacent sides of the mounting plate, and the exhaust hook is fixedly connected to the mounting plate and the fixed flange.

[0007] Optionally, the exhaust hook includes a first pipe section for fixing the exhaust pipe, a second pipe section connected to the fixing member, and a third pipe section connecting the first pipe section and the second pipe section, the third pipe section being fixedly connected to the fixing flange.

[0008] Optionally, the mounting plate includes a first side, a second side, and a third side located between the first side and the second side, wherein the length of the first side is less than the length of the second side, and the mounting plate extends and bends from the first side and the third side to form a first flange and a second flange, respectively.

[0009] Optionally, the projection of the fixed flange along the direction of the vertical mounting plate is arc-shaped to increase the contact area with the exhaust hook.

[0010] Optionally, the height of the first flange and the second flange relative to the mounting plate gradually decreases in the direction away from the fixed flange.

[0011] Optionally, the exhaust hook also includes a transition section, wherein the first pipe section and the second pipe section are respectively disposed opposite to each other at both ends of the third pipe section and located on the same side of the third pipe section.

[0012] This utility model also proposes an automobile, including a vehicle body, the vehicle body including a front floor, a reinforcing beam assembly fixedly connected to the front floor, and the aforementioned exhaust hook assembly, the exhaust hook being fixed to the reinforcing beam assembly by a fastener.

[0013] Optionally, the vehicle body also includes a front longitudinal beam that extends longitudinally from the front floor along the vehicle, with a reinforcing beam assembly located at one end of the front floor near the front longitudinal beam.

[0014] Optionally, the vehicle body also includes a battery pack mounting longitudinal beam arranged longitudinally along the vehicle, the battery pack mounting longitudinal beam being fixedly connected to the front floor and to the reinforcing beam assembly.

[0015] Compared with the prior art, the technical solution of this utility model has the following advantages: The exhaust hook assembly of this utility model fixes the exhaust hook to the vehicle body through the fastener, and the exhaust hook is fixedly connected to the mounting plate and the flange, which helps to improve the dynamic stiffness and connection strength of the exhaust hook. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the vehicle body structure of this utility model.

[0018] Figure 2 This is a partial assembly diagram of the exhaust hook assembly and the reinforcing beam assembly of this utility model.

[0019] Figure 3 This is a schematic diagram of the exhaust hook assembly of this utility model.

[0020] In the picture:

[0021] 1-Exhaust hook; 11-First pipe section; 12-Second pipe section; 13-Third pipe section; 14-Transition section;

[0022] 2-Factor; 21-Mounting plate; 211-Connecting hole; 22-Flange; 221-First flange; 222-Second flange; 223-Fixing flange;

[0023] 3-Front floor;

[0024] 4-Front longitudinal beam; 41-Outer plate of front longitudinal beam; 42-Reinforcing plate of front longitudinal beam; 43-Inner plate of front longitudinal beam;

[0025] 5-Strengthening beam assembly; 51-First strengthening beam; 52-Second strengthening beam;

[0026] 6- Battery pack mounting longitudinal beam; 61- Mounting longitudinal beam body; 62- Mounting longitudinal beam joint. Detailed Implementation

[0027] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The terms “upper,” “lower,” “top,” “bottom,” “inner,” and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The terms “first”, “second”, etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0030] The terms “including,” “comprising,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0031] Please see Figure 1This utility model provides an automobile, including a vehicle body, which includes a front floor 3, a front longitudinal beam 4, a reinforcing beam assembly 5, and a battery pack mounting longitudinal beam 6. The front floor 3 is fixedly connected to the front longitudinal beam 4 by welding or riveting. The front floor 3 is generally rectangular. The front longitudinal beam 4 is located below the front floor 3 and extends longitudinally from the end of the front floor 3 along the vehicle. The reinforcing beam assembly 5 and the battery pack mounting longitudinal beam 6 are fixedly connected to the adjacent two sides of the front floor 3 by welding or riveting, respectively. The reinforcing beam assembly 5 is connected to the end of the front floor 3 near the front longitudinal beam 4.

[0032] In one example, the reinforcing beam assembly 5 includes a first reinforcing beam 51 and a second reinforcing beam 52 that are fixedly connected to each other. Specifically, the first reinforcing beam 51 and the second reinforcing beam 52 are sequentially connected to one end of the front floor 3 near the front longitudinal beam 4, and the ends of the first reinforcing beam 51 and the second reinforcing beam 52 that are away from each other are fixedly connected to the battery pack mounting longitudinal beam 6 and the front longitudinal beam 4, respectively.

[0033] Specifically, the front longitudinal beam 4 includes an inner plate 43, an outer plate 41, and a reinforcing plate 42. The inner plate 43 and the outer plate 41 form a closed cavity, which is beneficial for absorbing and dispersing impact energy and improving the strength of the front longitudinal beam 4. The reinforcing plate 42 is fixedly connected to the outer plate 41 near the reinforcing beam assembly 5 by welding or riveting, and is also fixedly connected to the inner plate 43 by welding or riveting. The reinforcing plate 42 can improve the connection strength between the front longitudinal beam 4 and the reinforcing beam 5.

[0034] The battery pack mounting longitudinal beam 6 includes a mounting longitudinal beam body 61 and a mounting longitudinal beam connector 62. Both the mounting longitudinal beam body 61 and the mounting longitudinal beam connector are fixedly connected to the front floor 3, and the mounting longitudinal beam body 61 is arranged longitudinally along the vehicle. The mounting longitudinal beam connector 62 is fixedly connected to the end of the mounting longitudinal beam body 61 near the reinforcing beam assembly 5, and is also fixedly connected to the first reinforcing beam 51. This facilitates the formation of a force transmission path between the battery pack mounting longitudinal beam 6, the reinforcing beam assembly 5, and the front longitudinal beam 4, thereby effectively absorbing and dispersing impact energy, reducing the impact on the battery pack, and providing protection for the battery pack.

[0035] Please see Figure 2 The vehicle of this utility model also includes an exhaust hook assembly, which includes an exhaust hook 1 and a fixing member 2. During vehicle operation, the exhaust hook 1 is used to fix the exhaust pipe, preventing it from shifting due to vibration or bumps, thus improving connection stability. Furthermore, when encountering road obstacles or low barriers, the exhaust hook 1 can protect the exhaust pipe from impact. In addition, the exhaust hook 1 facilitates installation and maintenance. Optionally, the exhaust hook 1 is fixed to the edge of the first reinforcing beam 51 by the fixing member 2 to avoid other components.

[0036] Please see Figure 3 The exhaust hook assembly includes an exhaust hook 1 and a fastener 2, with the exhaust hook 1 fixed to the vehicle body via the fastener 2. In one example, the exhaust hook 1 is fixedly connected to a reinforcing beam assembly 5 via the fastener 2. Specifically, the fastener 2 can be fixedly connected to the reinforcing beam assembly 5 by means of fastener connection, welding, riveting, or bonding, and the exhaust hook 1 and the reinforcing beam assembly 5 are respectively connected to opposite sides of the fastener 2. Because the area where the reinforcing beam assembly 5 is located has high stiffness and strength, fixing the exhaust hook 1 to the reinforcing beam assembly 5 can improve the stiffness and strength of the connection.

[0037] In some embodiments, the exhaust hook 1 is at least partially U-shaped. Optionally, the exhaust hook 1 is a hollow cylinder to reduce weight and facilitate lightweight design. Specifically, the exhaust hook 1 includes a first pipe section 11, a second pipe section 12, and a third pipe section 13. The first pipe section 11 is connected to the second pipe section 12 via the third pipe section 13. Optionally, the first pipe section 11 and the second pipe section 12 are arranged opposite to each other and located on the same side of the third pipe section 13. The first pipe section 11 is used to fix the exhaust pipe, and the second pipe section 12 is used to connect to the fixing member 2.

[0038] Optionally, the exhaust hook 1 also includes a transition section 14, which is an arc-shaped tube. The first pipe section 11 and the second pipe section 12 are respectively connected to the two ends of the third pipe section 13 through the transition section 14. The transition section 14 can make the stress distribution of the exhaust hook 1 more uniform and avoid stress concentration. In addition, the transition section 14 can prevent damage such as breakage at the connection, thereby improving stability.

[0039] In some embodiments, the fastener 2 includes a mounting plate 21 and a flange 22, the mounting plate 21 extending from its edge and bent to form the flange 22. Optionally, the mounting plate 21 is generally trapezoidal, so that the wider end of the mounting plate 21 can fit more tightly against the reinforcing beam assembly 5, while the narrower end can precisely fix the exhaust hook 1, thereby adapting to the installation requirements of different vehicle models and different locations, and also improving stability.

[0040] In one example, the flange 22 includes a first flange 221, a second flange 222, and a fixed flange 223 connected between the first flange 221 and the second flange 222. The first flange 221 and the second flange 222 are respectively connected to adjacent sides of the mounting plate 21, and the third pipe section 13 is fixedly connected to the fixed flange 223. During vehicle operation, by fixing the second pipe section 12 and the third pipe section 13 of the exhaust hook 1 to the mounting plate 21 and the fixed flange 223 respectively, it is beneficial to suppress the vibration transmitted by the exhaust system, thereby improving the dynamic stiffness and connection strength of the exhaust hook 1.

[0041] In one example, the projection of the fixed flange 223 along the direction perpendicular to the mounting plate 21 is arc-shaped, which can increase the contact area with the third pipe segment 13, thereby improving the connection strength and stability. Optionally, the height of the first flange 221 and the second flange 222 relative to the mounting plate 21 gradually decreases in the direction away from the fixed flange 223. Specifically, the mounting plate 21 includes a first side, a second side, and a third side located between the first side and the second side, with the length of the first side being less than the length of the second side. The mounting plate 21 extends and bends from the first side and the third side to form the first flange 221 and the second flange 222, respectively.

[0042] The exhaust hook 1 can be fixed to the fastener 2 by welding with a single row of weld points or multiple rows of weld points. Optionally, the second pipe section 12 and the third pipe section 13 are fixedly connected to the mounting plate 21 and the fixing flange 223 by welding with double rows of weld points, which further improves the connection strength.

[0043] In some embodiments, the exhaust hook assembly of this invention further includes fasteners for attaching the fixing member 2 to the reinforcing beam assembly 5. Compared to welding or riveting, fastener connection can improve connection strength, thereby improving the NVH and durability performance of the exhaust hook 1. Specifically, the mounting plate 21 and the reinforcing beam assembly 5 are respectively provided with connecting holes 211 and mounting holes for fasteners to pass through. Optionally, the fasteners are bolts, and the number of connecting holes 211 can be one or more, preferably three. Furthermore, the line connecting the geometric centers of the three connecting holes 211 forms a triangle, further improving connection stability. In addition, the fasteners allow the fixing member 2 to be detachably connected to the reinforcing beam assembly 5, providing flexible installation and improving adaptability. This allows the exhaust hook 1 to be used in vehicles of different lengths and widths, thereby reducing development costs.

[0044] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An exhaust hook assembly, characterized in that: It includes an exhaust hook (1) and a fastener (2). The fastener (2) is used to fix the exhaust hook (1) to the vehicle body. The fastener (2) includes a mounting plate (21) and a flange (22) provided on the edge of the mounting plate (21). The exhaust hook (1) is fixedly connected to the mounting plate (21) and the flange (22).

2. The exhaust hook assembly according to claim 1, characterized in that: The flange (22) includes a first flange (221), a second flange (222), and a fixed flange (223) connected between the first flange (221) and the second flange (222). The first flange (221) and the second flange (222) are respectively connected to the adjacent sides of the mounting plate (21). The exhaust hook (1) is fixedly connected to the mounting plate (21) and the fixed flange (223).

3. The exhaust hook assembly according to claim 2, characterized in that: The exhaust hook (1) includes a first pipe section (11) for fixing the exhaust pipe, a second pipe section (12) connected to the fixing member (2), and a third pipe section (13) connecting the first pipe section (11) and the second pipe section (12), wherein the third pipe section (13) is fixedly connected to the fixing flange (223).

4. The exhaust hook assembly according to claim 2, characterized in that: The mounting plate (21) includes a first side, a second side and a third side located between the first side and the second side, the length of the first side is less than the length of the second side, and the mounting plate (21) extends and bends from the first side and the third side to form the first flange (221) and the second flange (222).

5. The exhaust hook assembly according to claim 2, characterized in that: The fixed flange (223) is projected in an arc shape along the direction perpendicular to the mounting plate (21) to increase the contact area with the exhaust hook (1).

6. The exhaust hook assembly according to claim 2, characterized in that: The height of the first flange (221) and the second flange (222) relative to the mounting plate (21) gradually decreases in the direction away from the fixed flange (223).

7. The exhaust hook assembly according to claim 3, characterized in that: The exhaust hook (1) also includes a transition section (14), where the first pipe section (11) and the second pipe section (12) are respectively disposed opposite to each other at both ends of the third pipe section (13) through the transition section (14) and are located on the same side of the third pipe section (13).

8. An automobile, comprising a vehicle body, characterized in that: The vehicle body includes a front floor (3), a reinforcing beam assembly (5) fixedly connected to the front floor (3), and an exhaust hook assembly according to any one of claims 1 to 7, wherein the exhaust hook (1) is fixed to the reinforcing beam assembly (5) by the fastener (2).

9. The automobile according to claim 8, characterized in that: The vehicle body also includes a front longitudinal beam (4) that extends longitudinally from the front floor (3) along the vehicle, and a reinforcing beam assembly (5) is connected to one end of the front floor (3) near the front longitudinal beam (4).

10. The automobile according to claim 9, characterized in that: The vehicle body also includes a battery pack mounting longitudinal beam (6) arranged along the longitudinal direction of the vehicle. The battery pack mounting longitudinal beam (6) is fixedly connected to the front floor (3) and to the reinforcing beam assembly (5).

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