Mounting structure, vehicle chassis, and vehicle

Abstract

The application relates to a mounting structure, a vehicle chassis and a vehicle, the mounting structure comprising a longitudinal beam arranged as a hollow structure, and an exhaust pipe arranged at least partially in the hollow structure of the longitudinal beam. The exhaust pipe is at least partially integrated into the longitudinal beam of the vehicle, which reduces the installation space requirement of the exhaust pipe, makes the mounting structure of the chassis and the exhaust pipe compact, and improves the space utilization of the vehicle chassis.

Description

Technical Field

[0001] This application relates to the field of vehicle chassis technology, and more particularly to an mounting structure, a vehicle chassis, and a vehicle. Background Technology

[0002] Currently, in related technologies, the longitudinal beams of the vehicle and the exhaust pipe are set up separately. The exhaust pipe needs to be installed in a separate space to extend from the engine side of the vehicle along the length of the vehicle to the rear of the vehicle, which results in a large amount of chassis space being occupied.

[0003] Therefore, a technical solution is needed to at least partially solve the above-mentioned technical problems. Utility Model Content

[0004] This application provides an installation structure, a vehicle chassis, and a vehicle. The installation structure integrates at least a portion of the exhaust pipe with the vehicle's longitudinal beams, thereby reducing the installation space requirements of the exhaust pipe and improving the utilization rate of the vehicle's chassis space, thus at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, an installation structure is provided, comprising:

[0006] The longitudinal beams are designed as hollow structures and are mounted on the beam-type vehicle frame;

[0007] The exhaust pipe is at least partially located within the hollow structure of the longitudinal beam.

[0008] In some embodiments, a separator is included, arranged along the extension direction of the longitudinal beam, the separator being disposed between the longitudinal beam and the exhaust pipe to separate the longitudinal beam from the exhaust pipe.

[0009] In some embodiments, the separator includes a first fixing member and a second fixing member, the second fixing member being mounted on the first fixing member such that a space for mounting the exhaust pipe is formed between the second fixing member and the first fixing member.

[0010] In some embodiments, at least one of the first fastener and the second fastener is fixedly mounted on the longitudinal beam.

[0011] In some embodiments, a heat-insulating filling layer is included, which fills the space formed by the first fixing member, the second fixing member, and the outer wall of the exhaust pipe, for separating the exhaust pipe from the first fixing member and the second fixing member.

[0012] In some embodiments, the insulating filler layer comprises an airtight adhesive.

[0013] In some embodiments, a first muffler is included, which is disposed on the exhaust pipe and within the hollow structure of the longitudinal beam.

[0014] In some embodiments, a mounting base is provided at a position where the exhaust pipe extends from inside the longitudinal beam to outside the longitudinal beam, and the exhaust pipe extends through the mounting base to outside the longitudinal beam.

[0015] In some embodiments, the longitudinal beam is provided with a plurality of heat dissipation holes along its extension direction.

[0016] In some embodiments, the exhaust pipe includes a first pipe section, a second pipe section, and a third pipe section. The first pipe section and the third pipe section are respectively connected to the two ends of the second pipe section. The first pipe section and the third pipe section are located outside the longitudinal beam, and the second pipe section is located inside the longitudinal beam.

[0017] In some embodiments, a three-way catalytic converter is provided on the first pipe section.

[0018] In some embodiments, one end of the three-way catalytic converter is connected to the first pipe section, and the other end is equipped with a pipe compensator for connecting to the exhaust end of the engine.

[0019] In some embodiments, the three-way catalytic converter is connected to the first pipe section via a pipe compensator.

[0020] In some embodiments, a second silencer is provided on the third pipe section.

[0021] According to a second aspect of this application, a vehicle chassis is provided, including the aforementioned mounting structure.

[0022] According to a third aspect of this application, a vehicle is provided, including the aforementioned vehicle chassis, on which a battery pack is mounted.

[0023] In the installation structure of this application embodiment, the exhaust pipe is at least partially integrated into the longitudinal beam of the vehicle through the above technical solution, reducing the installation space requirements of the exhaust pipe, making the installation structure of the chassis and exhaust pipe compact, and improving the space utilization of the vehicle chassis.

[0024] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0027] Figure 1 This is a partial structural diagram of the chassis provided in an exemplary embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the installation structure of the longitudinal beam and exhaust pipe provided in an exemplary embodiment of this application;

[0029] Figure 3 This is an exploded structural diagram of the chassis and exhaust pipe installation provided in an exemplary embodiment of this application;

[0030] Figure 4 This is a cross-sectional structural diagram of the installation of the longitudinal beam and exhaust pipe provided in an exemplary embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Exhaust pipe, 101-First pipe section, 102-Second pipe section, 103-Third pipe section;

[0033] 2-Longitudinal beam, 21-First beam body, 22-Second beam body, 23-Heat dissipation hole;

[0034] 3-Separator, 31-First fastener, 32-Second fastener, 33-Insulation filling layer;

[0035] 4-First silencer;

[0036] 5-Second silencer;

[0037] 6-Mounting base, 61-Flange;

[0038] 7-Fasteners;

[0039] 8-Three-way catalytic converter;

[0040] 9-Crossbeam. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0042] A first aspect of this application provides an installation structure, please refer to... Figures 1-4 The mounting structure includes a longitudinal beam 2 and an exhaust pipe 1. The longitudinal beam 2 is a hollow structure mounted on a ladder frame, and the exhaust pipe 1 is at least partially housed within the hollow structure of the longitudinal beam 2. It can be understood that the longitudinal beam 2 is a component of the ladder frame and a core load-bearing structure of the vehicle chassis. It typically consists of two heavy beams arranged roughly parallel to each other along the vehicle body direction (from front to rear). The two longitudinal beams 2 are connected by a crossbeam 9. The longitudinal beam 2 has a large internal space capable of accommodating the vehicle's exhaust pipe 1. Compared to existing technologies where the exhaust pipe 1 is exposed outside the vehicle chassis frame, this embodiment of the application partially houses the exhaust pipe 1 within the longitudinal beam 2, at least partially integrating the exhaust pipe 1 with the longitudinal beam 2. This means that the portion of the exhaust pipe 1 integrated into the longitudinal beam 2 no longer occupies chassis space, significantly reducing the space occupied by the exhaust pipe 1 from the front compartment (engine side) to the rear of the vehicle, thus improving the space utilization of the vehicle chassis. Furthermore, the larger chassis space allows for increased ground clearance, improving the vehicle's off-road capability. Typically, off-road vehicles and similar models feature a ladder frame chassis, a type of automotive chassis structure that uses an independent, rigid frame to support the powertrain and body, differing from a subframe. A ladder frame chassis includes two generally parallel longitudinal beams 2, which bear the main loads and torsional forces. Crossbeams 9 connect the two longitudinal beams 2, preventing deformation and distributing the load. Multiple crossbeams 9 can be present.

[0043] In some implementations, please refer to Figure 3 and Figure 4 The system includes a separator 3 arranged along the extension direction of the longitudinal beam 2. The separator 3 is disposed between the longitudinal beam 2 and the exhaust pipe 1, separating the longitudinal beam 2 from the exhaust pipe 1. It can be understood that by separating the exhaust pipe 1 within the longitudinal beam 2 from the longitudinal beam 2 using the separator 3, the exhaust pipe 1 and the longitudinal beam 2 are not in direct contact, thereby reducing the heat conducted from the exhaust pipe 1 to the longitudinal beam 2, and thus reducing the impact of heat on the longitudinal beam 2. For example, the high temperature of the exhaust pipe 1 affects the paint surface of the longitudinal beam 2. Specifically, the separator 3 is arranged along the extension direction of the longitudinal beam 2, and multiple separators 3 can be provided to better separate the exhaust pipe 1 from the longitudinal beam 2.

[0044] The separator 3 includes a first fixing member 31 and a second fixing member 32. The second fixing member 32 is mounted on the first fixing member 31, forming a space between the second fixing member 32 and the first fixing member 31 for installing the exhaust pipe 1. It can be understood that the separator 3 includes two detachable first fixing members 31 and second fixing members 32, forming a space between them for installing the exhaust pipe 1. The exhaust pipe 1 is installed within this space to separate the exhaust pipe 1 from the longitudinal beam 2. For example, the first fixing member 31 is plate-shaped, and the second fixing member 32 is a strip with a U-shaped cross-section. The second fixing member 32 is mounted on the first fixing member 31 using fasteners 7, which are screws or bolts. The lengths of the first fixing member 31 and the second fixing member 32 can be set as needed, extending along the longitudinal beam 2. The materials of the first fixing member 31 and the second fixing member 32 can be steel or aluminum.

[0045] Furthermore, the longitudinal beam 2 includes a first beam body 21 and a second beam body 22, which extend along the length of the longitudinal beam 2 and have a U-shaped cross-section. The first beam body 21 and the second beam body 22 are fastened together to form the longitudinal beam 2 structure, which has a roughly rectangular cross-section. The first beam body 21 and the second beam body 22 can be connected by welding. Typically, the longitudinal beam 2 is made of steel.

[0046] At least one of the first fixing member 31 and the second fixing member 32 is fixedly installed on the longitudinal beam 2. In other words, the first fixing member 31 and / or the second fixing member 32 are fixedly installed on the longitudinal beam 2 to fix the partition member 3 and prevent the partition member 3 from swaying arbitrarily within the longitudinal beam 2 and from colliding with the inner wall of the longitudinal beam 2. It should be noted that the first fixing member 31 is plate-shaped, and the second fixing member 32 is strip-shaped with a U-shaped cross-section. The first fixing member 31 and the second fixing member 32 are fixedly installed on the longitudinal beam 2 by fasteners 7, which are screws or bolts.

[0047] In some embodiments, a heat-insulating filling layer 33 is included, which fills the space formed by the first fixing member 31, the second fixing member 32, and the outer wall of the exhaust pipe 1, serving to separate the exhaust pipe 1 from the first fixing member 31 and the second fixing member 32. It is understood that various components can be provided between the exhaust pipe 1 and the first fixing member 31 and the second fixing member 32 to separate the exhaust pipe 1 from the first fixing member 31 and the second fixing member 32. For example, a support column can be provided between the exhaust pipe 1 and the first fixing member 31 and the second fixing member 32, with one end of the support column disposed on the first fixing member 31 / second fixing member 32 and the other end disposed on the outer wall of the exhaust pipe 1. Typically, to reduce the heat transfer from the exhaust pipe 1 to the longitudinal beam 2 and to reduce the vibration noise of the exhaust pipe 1, a heat-insulating filling layer 33 is provided within the space formed by the first fixing member 31, the second fixing member 32, and the outer wall of the exhaust pipe 1. The heat insulation filling layer 33 can be segmented within the space formed by the first fixing member 31, the second fixing member 32 and the outer wall of the exhaust pipe 1, or it can be filled along the extension direction of the exhaust pipe 1 to fill the space formed by the first fixing member 31, the second fixing member 32 and the outer wall of the exhaust pipe 1.

[0048] The heat-insulating filling layer 33 includes an airtight adhesive. Airtight adhesive is a material primarily used to provide an airtight seal, possessing characteristics such as fire resistance, high temperature resistance, strong environmental adaptability, and environmental friendliness. It forms a strong, elastic, and airtight barrier; for example, silicone sealant. The airtight adhesive is placed in the space formed by the first fixing member 31, the second fixing member 32, and the outer wall of the exhaust pipe 1. The airtight adhesive fills the space formed by the first fixing member 31, the second fixing member 32, and the outer wall of the exhaust pipe 1, making the installation of the exhaust pipe 1 in the separator 3 more stable, thereby restricting the movement of the exhaust pipe 1 relative to the first fixing member 31 and the second fixing member 32, while also providing support for the exhaust pipe 1. Furthermore, due to the heat-insulating and elastic properties of the airtight adhesive, it can provide heat insulation and shock absorption for the exhaust pipe 1, reducing vibration noise.

[0049] In some embodiments, the first muffler 4 is disposed on the exhaust pipe 1 and within the hollow structure of the longitudinal beam 2. It is understood that the first muffler 4 on the exhaust pipe 1 reduces engine noise, and its placement within the hollow structure of the longitudinal beam 2 further reduces engine noise. Furthermore, compared to the prior art where the first muffler 4 is located outside the longitudinal beam 2, this design further improves the integration of the vehicle chassis, enhances space utilization, and makes the overall chassis structure more compact, significantly reducing space occupation and improving passability. Simultaneously, by installing the exhaust pipe 1 with the first muffler 4 within the longitudinal beam 2, heat emitted from the exhaust pipe 1 can be prevented from causing thermal damage to surrounding components. Specifically, the first muffler 4 is a secondary muffler, smaller in size to be housed within the longitudinal beam 2, typically located after the three-way catalytic converter 8 and before the main muffler. Its main function is to supplement noise reduction for specific frequency bands and optimize exhaust flow. The auxiliary muffler is designed to precisely eliminate low-to-mid-frequency resonance noise, suppress high-speed airflow howling, reduce exhaust back pressure, optimize power response, reduce the load on the main muffler, and extend its lifespan. Furthermore, the first muffler 4 and the exhaust pipe 1 are fixed by a separator 3. The separator 3 provides support for the exhaust pipe 1 and the first muffler 4 on it, improving the stability of the first muffler 4 installation, limiting the displacement of the exhaust pipe 1 and the first muffler 4, and reducing their vibration.

[0050] In some embodiments, a mounting base 6 is included. The exhaust pipe 1 extends from inside the longitudinal beam 2 to outside the longitudinal beam 2, and the mounting base 6 is provided at this position. The exhaust pipe 1 passes through the mounting base 6 and extends from inside the longitudinal beam 2 to outside the longitudinal beam 2. It is understood that the mounting base 6 on the longitudinal beam 2 serves as a guide and positioner during the installation of the exhaust pipe 1, facilitating assembly. Furthermore, the mounting base 6 can reinforce the position of the longitudinal beam 2 where it is mounted and prevent the high temperature of the exhaust pipe 1 from being directly conducted to the longitudinal beam 2, thereby protecting the paint film of the longitudinal beam 2. Specifically, the outer wall of the exhaust pipe 1 does not directly contact the longitudinal beam 2; instead, a through hole for mounting the mounting base 6 is provided on the longitudinal beam 2. The mounting base 6 has a mounting hole for mounting the exhaust pipe 1. The exhaust pipe 1 is mounted on the mounting base 6. Typically, the mounting base 6 is made of stainless steel, which has high strength and can withstand the high temperature of the exhaust pipe 1. The mounting base 6 is fixed to the longitudinal beam 2 by screws or rivets. To reduce the assembly difficulty of the gas distribution pipe, a flange 61 is provided on the mounting base 6, and the exhaust pipes 1 inside and outside the longitudinal beam 2 are connected through the flange 61.

[0051] In some embodiments, the longitudinal beam 2 is provided with multiple heat dissipation holes 23 along its extension direction. It is understood that the heat dissipation holes 23 connect the internal space of the longitudinal beam 2 with the external environment. Through the heat dissipation holes 23 on the longitudinal beam 2, the exhaust pipe 1 and partition 3 inside the longitudinal beam 2 can be cooled, and their heat is dissipated through the heat dissipation holes 23, preventing the longitudinal beam 2 from overheating. Multiple heat dissipation holes 23 are provided, arranged along the extension direction of the longitudinal beam 2 and also along the circumference of the longitudinal beam 2. Typically, heat dissipation holes 23 are provided on both the first beam body 21 and the second beam body 22 of the longitudinal beam 2. The size and shape of the heat dissipation holes 23 are set according to actual needs, and the overall structural strength should be taken into account.

[0052] In some implementations, please refer to Figure 2 and Figure 3 The exhaust pipe 1 includes a first pipe section 101, a second pipe section 102, and a third pipe section 103. The first pipe section 101 and the third pipe section 103 are respectively connected to the two ends of the second pipe section 102. The first pipe section 101 and the third pipe section 103 are located outside the longitudinal beam 2, while the second pipe section 102 is located inside the longitudinal beam 2. It can be understood that the exhaust pipe 1 is divided into sections (first pipe section 101 and third pipe section 103) at both ends of the longitudinal beam 2 to facilitate the installation of other equipment components on the first pipe section 101 and the third pipe section 103, thereby forming a more complete exhaust system. Typically, the first pipe section 101 is located near the vehicle chassis and close to the engine side to receive engine exhaust gas, and the third pipe section 103 is located near the rear of the vehicle to discharge exhaust gas.

[0053] In some implementations, please refer to Figure 1 and Figure 2 The first pipe section 101 is equipped with a three-way catalytic converter 8. It can be understood that the automotive three-way catalytic converter 8 is a core environmental protection device in the exhaust system of gasoline vehicles. Its core function is to separate the three main harmful gases produced by engine combustion (carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx)). x Catalytic converters transform harmful gases into relatively harmless substances through catalytic reactions, which is of great significance for environmental protection and also enables vehicles to meet emission standards. Metal catalysts purify harmful gases at high temperatures; therefore, three-way catalytic converters are typically installed near the engine side to fully utilize the high temperatures emitted by the engine.

[0054] The three-way catalytic converter 8 has a first end and a second end for gas flow. The first end of the three-way catalytic converter 8 is connected to the first pipe section 101 via a pipe compensator, and the second end of the three-way catalytic converter 8 is configured to connect to the exhaust end of the engine via a pipe compensator. It is understood that the engine will experience relative displacement with the three-way catalytic converter 8 during operation. This relative displacement can be offset by the pipe compensator. Installing pipe compensators at both ends of the three-way catalytic converter 8 can better compensate for the displacement between the engine, the pipe compensator, and the first pipe section 101 of the exhaust pipe 1. The pipe compensator is a metal bellows, a flexible connecting component. Its special corrugated structure absorbs displacement and stress caused by thermal expansion and contraction, vibration, or installation deviations in the pipeline, ensuring safe system operation. It features high-temperature resistance, vibration isolation, and displacement compensation.

[0055] The third pipe section 103 is equipped with a second muffler 5, which is used to reduce engine noise in the exhaust pipe 1. It is the core noise reduction component of the exhaust system. In addition, it also has the functions of safely venting exhaust gas, eliminating sparks, and adjusting the sound. It should be noted that the first muffler 4 is a secondary muffler, and the second muffler 5 is the primary muffler. The second muffler 5 is larger than the secondary muffler and usually cannot be installed inside the longitudinal beam 2.

[0056] A second aspect of this application provides a vehicle chassis including the aforementioned mounting structure, the vehicle chassis including all the technical features of the aforementioned mounting structure, and therefore also having all the technical effects of the mounting structure.

[0057] A third aspect of this application provides a vehicle including the aforementioned vehicle chassis. Since the vehicle possesses all the technical features of a vehicle chassis structure, it also possesses all its technical effects. The chassis structure of this vehicle is more compact, the chassis space is larger, and the passability is better.

[0058] The vehicle in question is a hybrid off-road vehicle, specifically a plug-in hybrid off-road vehicle, with a battery pack mounted on the chassis. It is understood that hybrid vehicles have both an engine-driven system and an electric drive system. The electric drive system requires a larger installation space for the power battery (battery pack). Therefore, integrating the exhaust pipe 1 into the longitudinal beam 2 reduces the installation space required for the exhaust pipe 1. This installation space is used to install the power battery, providing more room for the power battery and thus increasing the vehicle's driving range. For example, in some off-road vehicles, integrating the exhaust pipe 1 into the ladder frame can save 1.83e [units of space]. 8 mm 3 The space saved can be used to install a power battery, which can store an additional 6771Wh of energy, increasing the driving range by 13.5 kilometers.

[0059] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0060] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0061] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0062] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An installation structure, characterized in that, include: The longitudinal beam (2) is a hollow structure and is mounted on the beam frame. The exhaust pipe (1) is at least partially disposed within the hollow structure of the longitudinal beam (2).

2. The installation structure according to claim 1, characterized in that, It includes a separator (3) arranged along the extension direction of the longitudinal beam (2), the separator (3) being disposed between the longitudinal beam (2) and the exhaust pipe (1) to separate the longitudinal beam (2) and the exhaust pipe (1).

3. The installation structure according to claim 2, characterized in that, The separator (3) includes a first fixing member (31) and a second fixing member (32), the second fixing member (32) being mounted on the first fixing member (31) such that a space for mounting the exhaust pipe (1) is formed between the second fixing member (32) and the first fixing member (31).

4. The installation structure according to claim 3, characterized in that, At least one of the first fastener (31) and the second fastener (32) is fixedly installed on the longitudinal beam (2).

5. The installation structure according to claim 3, characterized in that, It includes a heat insulation filling layer (33), which fills the space formed by the first fixing member (31), the second fixing member (32) and the outer wall of the exhaust pipe (1) to separate the exhaust pipe (1) from the first fixing member (31) and the second fixing member (32).

6. The installation structure according to claim 5, characterized in that, The thermal insulation filler layer (33) includes an airtight adhesive.

7. The installation structure according to claim 1, characterized in that, Includes a first muffler (4), which is disposed on the exhaust pipe (1) and is disposed within the hollow structure of the longitudinal beam (2).

8. The installation structure according to any one of claims 1-7, characterized in that, The device includes a mounting base (6), and the exhaust pipe (1) is provided at a position where it extends from inside the longitudinal beam (2) to outside the longitudinal beam (2). The exhaust pipe (1) passes through the mounting base (6) and extends to outside the longitudinal beam (2).

9. The installation structure according to any one of claims 1-7, characterized in that, The longitudinal beam (2) is provided with a plurality of heat dissipation holes (23) along its extension direction.

10. The mounting structure according to any one of claims 1-7, characterized in that, The exhaust pipe (1) includes a first pipe section (101), a second pipe section (102), and a third pipe section (103). The first pipe section (101) and the third pipe section (103) are respectively connected to the two ends of the second pipe section (102). The first pipe section (101) and the third pipe section (103) are located outside the longitudinal beam (2), and the second pipe section (102) is located inside the longitudinal beam (2).

11. The mounting structure according to claim 10, characterized in that, The first pipe section (101) is equipped with a three-way catalytic converter (8).

12. The mounting structure according to claim 11, characterized in that, One end of the three-way catalytic converter (8) is connected to the first pipe section (101), and the other end is equipped with a pipe compensator, which is used to connect to the exhaust end of the engine.

13. The mounting structure according to claim 12, characterized in that, The three-way catalytic converter (8) is connected to the first pipe section (101) via another pipe compensator.

14. The mounting structure according to claim 10, characterized in that, The third pipe section (103) is equipped with a second silencer (5).

15. A vehicle chassis, characterized in that, Includes the installation structure described in any one of claims 1-14.

16. A vehicle, characterized in that, Includes the vehicle chassis as described in claim 15.

17. The vehicle according to claim 16, characterized in that, The vehicle is a hybrid off-road vehicle, and a battery pack is installed on the vehicle chassis.

Images