Truck frame assembly and truck

Abstract

The utility model discloses a truck frame assembly and truck, truck frame assembly includes: longitudinal beam and crossbeam, longitudinal beam has two, two longitudinal beam is spaced along left and right direction, and crossbeam is connected between two longitudinal beam, along front and back direction, longitudinal beam has first section and second section, in up and down direction, the thickness value of first section is less than the thickness value of second section, and the second section of two longitudinal beam constructs the accommodation space between, and battery device is installed in the accommodation space. According to the truck frame assembly of the utility model, by making longitudinal beam have the second section of thickness thicker, and by the second section constructs the accommodation space of accommodating battery device, not only can improve the structural strength of longitudinal beam better, make the frame difficult to bend and crack in the middle because of the insufficient rigidity, but also can be favorable to the assembly of battery device, and also can reduce the weight and cost of whole car better.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a truck frame assembly and a truck. Background Technology

[0002] In related technologies, the structural form of cargo trucks is generally a chassis main frame + superstructure subframe. Due to the large weight of the power battery system, the frame assembly of new energy vehicles needs to be reinforced based on the traditional fuel vehicle frame assembly; otherwise, insufficient frame rigidity will lead to bending and cracking in the middle. Furthermore, cargo trucks cannot place the power battery at the rear of the cab like tractor-trailers or dump trucks; they can only be placed on both sides of the frame assembly. This easily results in a larger weight for the power battery mounting brackets, thus increasing the overall vehicle weight and cost. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a truck frame assembly that has good rigidity and strength, facilitates the assembly of battery devices, and can also significantly reduce the weight and cost of the entire vehicle.

[0004] According to an embodiment of the present invention, a truck frame assembly is used for a truck, the truck including a battery device, the truck frame assembly including: two longitudinal beams spaced apart in the left-right direction; and a crossbeam connecting the two longitudinal beams; wherein, in the front-rear direction, the longitudinal beams have a first segment and a second segment, and in the vertical direction, the thickness of the first segment is less than the thickness of the second segment, and a receiving space is formed between the second segments of the two longitudinal beams, the battery device being installed in the receiving space.

[0005] According to the truck frame assembly of this utility model embodiment, by making the longitudinal beam have a thicker second section and constructing a space for accommodating the battery device through the second section, the structural strength of the longitudinal beam can be improved, making the frame less prone to bending and cracking in the middle due to insufficient rigidity. It can also facilitate the assembly of the battery device and reduce the weight and cost of the whole vehicle.

[0006] In addition, the truck frame assembly according to this utility model may also have the following additional technical features:

[0007] In some embodiments of this utility model, at least a portion of the second segment protrudes upward from the first segment along the vertical direction.

[0008] In some embodiments of this utility model, the portion of the second segment that protrudes from the first segment along the vertical direction is a reinforcing segment. The reinforcing segment extends along the front-back direction and includes a plate and a flange. The plate is perpendicular to the horizontal plane, and the flange is connected to the upper side of the plate and folded toward another longitudinal beam.

[0009] In some embodiments of this utility model, the flange is parallel to the horizontal plane.

[0010] In some embodiments of this utility model, multiple crossbeams are provided, and the multiple crossbeams are arranged at intervals along the front-back direction. Among the multiple crossbeams, the crossbeam connected to the second segment is a reinforcing crossbeam. There are multiple reinforcing crossbeams, and along the up-down direction, the thickness of at least one of the reinforcing crossbeams is greater than the thickness of the first segment.

[0011] In some embodiments of this utility model, the longitudinal beam is an integrally formed beam body.

[0012] In some embodiments of this utility model, one end of the first segment is connected to the second segment, at least a portion of the other end of the first segment is bent toward a direction away from the other longitudinal beam, and the cab of the truck is mounted on the two first segments.

[0013] This utility model also proposes a truck having the truck frame assembly described in the above embodiments.

[0014] The truck according to an embodiment of the present invention is equipped with the truck frame assembly described in the above embodiment.

[0015] In some embodiments of the present invention, the truck also includes a cargo box assembly mounted on the second section of the two longitudinal beams.

[0016] In some embodiments of this utility model, the cargo box assembly includes multiple cargo box crossbeams and connecting members. The cargo box crossbeams are placed on the second section, and one end of the connecting member is connected to the cargo box crossbeam, while the other end is connected to the side of the second section.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of a truck frame assembly according to an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the assembly of the truck frame assembly and cargo box assembly according to an embodiment of the present utility model.

[0021] Figure 3 This is a structural schematic diagram of the crossbeam, cargo box crossbeam and connecting parts assembled according to an embodiment of the present utility model at one angle.

[0022] Figure 4 This is a structural schematic diagram of the crossbeam, cargo box crossbeam, and connector assembly according to an embodiment of the present utility model from another angle.

[0023] Figure label:

[0024] 100. Truck chassis assembly;

[0025] 1. Longitudinal beam; 11. First section; 12. Second section; 2. Crossbeam; 21. Reinforcing crossbeam; 3. Reinforcing section; 200. Cargo box assembly; 4. Cargo box crossbeam; 5. Connecting parts. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In related technologies, the heavy weight of the power battery system in cargo trucks necessitates reinforcement of the chassis assembly in new energy vehicles compared to traditional fuel vehicle chassis assemblies. Otherwise, insufficient chassis rigidity can lead to bending and cracking in the middle. Therefore, solutions in related technologies generally involve adding internal reinforcing beams to the traditional chassis design, increasing overall vehicle weight and cost. Furthermore, due to limitations in vehicle application scenarios, cargo trucks cannot place the power battery behind the cab like tractor-trailers or dump trucks; instead, they must be placed on the sides of the chassis. This results in the power battery mounting brackets accounting for approximately 20%-30% of the battery system's weight, further increasing overall vehicle weight and cost.

[0030] Based on this, this application proposes a truck frame assembly 100, which makes the longitudinal beam 1 have a thicker second section 12, and constructs a space for accommodating the battery device through the second section 12. This not only improves the structural strength of the longitudinal beam 1, making the frame less prone to bending and cracking in the middle due to insufficient rigidity, but also facilitates the assembly of the battery device and reduces the weight and cost of the whole vehicle.

[0031] The following is for reference. Figures 1-4 Description of a truck frame assembly 100 according to an embodiment of the present utility model.

[0032] According to the embodiment of the present utility model, the truck frame assembly 100 can be used for trucks. Of course, it is understood that it can also be used for other types of vehicles, and this application does not limit it. The truck includes a battery device. Exemplarily, the truck can be a new energy truck, or an electric truck, that is, the vehicle uses the electricity output by the battery device as its power source.

[0033] Furthermore, such as Figure 1As shown, the truck frame assembly 100 includes longitudinal beams 1 and crossbeams 2. There are two longitudinal beams 1, spaced apart in the left-right direction; these two longitudinal beams 1 can also be referred to as the left longitudinal beam and the right longitudinal beam. Multiple crossbeams 2 are connected between the two longitudinal beams 1, arranged spaced apart in the front-back direction. That is, a frame can be constructed using multiple crossbeams 2 and two longitudinal beams 1. Exemplarily, the connection between the crossbeams 2 and the longitudinal beams 1 can be welding or bolting, etc., and this application does not impose any limitations. Figure 1 As shown, there are eight crossbeams 2 in the front-to-back direction. There are two crossbeams 2 between the two first segments 11 and six crossbeams 2 between the two second segments 12.

[0034] Furthermore, such as Figure 1 As shown, along the front-to-back direction, the longitudinal beam 1 has a first section 11 and a second section 12. In the vertical direction, the thickness of the first section 11 is less than the thickness of the second section 12. A receiving space is constructed between the second sections 12 of the two longitudinal beams 1, and the battery device is installed in the receiving space. That is to say, by increasing the thickness of the second section 12, the structural strength of the second section 12 can be significantly enhanced, which can reduce the problem of bending and cracking in the middle of the frame due to insufficient rigidity. Furthermore, without the need to add additional reinforcing beams or other structures, the weight of the truck frame assembly 100 can be significantly reduced, which is conducive to reducing the weight of the entire vehicle and also helps to reduce the cost of the truck frame assembly 100 and the entire vehicle.

[0035] By increasing the thickness of the second segment 12 to create a receiving space, the battery device can be better installed within the receiving space without protruding outside. This minimizes interference with other structures of the truck (such as the cargo box), thus facilitating truck assembly and layout. Furthermore, compared to existing technologies, there is no need to install heavy battery mounting brackets on both sides of the truck frame assembly 100; the battery device can be directly installed on the longitudinal beam 1, which helps reduce the overall vehicle weight and cost.

[0036] According to the truck frame assembly 100 of this utility model embodiment, by making the longitudinal beam 1 have a thicker second section 12, and constructing a space for accommodating the battery device through the second section 12, the structural strength of the longitudinal beam 1 can be improved, making the frame less prone to bending and cracking in the middle due to insufficient rigidity. It can also facilitate the assembly of the battery device and reduce the weight and cost of the whole vehicle.

[0037] In some embodiments of this application, at least a portion of the second segment 12 protrudes upward from the first segment 11 in the vertical direction.

[0038] refer to Figure 1As shown, in the vertical direction, the lower side of the first segment 11 and the lower side of the second segment 12 are coplanar, and the upper side of the first segment 11 is lower than the upper side of the second segment 12. This not only helps to increase the structural strength of the second segment 12, but also helps to improve the flatness of the bottom of the truck frame assembly 100.

[0039] For example, a portion of the second segment 12 may protrude upward from the first segment 11, or all of the second segments 12 may protrude upward from the first segment 11; this application does not limit this.

[0040] In some embodiments of this application, reference is made to Figure 1 As shown, along the vertical direction, the part of the second segment 12 that protrudes from the first segment 11 is the reinforcing segment 3. The reinforcing segment 3 extends along the front-back direction and includes a plate and a flange. The plate is perpendicular to the horizontal plane, and the flange is connected to the upper side of the plate and folds towards another longitudinal beam 1.

[0041] In other words, the flanges of the two reinforcing sections 3 are folded towards each other, which can better shield the space above the housing and thus better protect the battery device inside the housing. In addition, by arranging the plate perpendicular to the horizontal plane, the thickness of the second section 12 can be increased, and the volume of the housing can be increased, which is beneficial to the arrangement of the battery device. In addition to protecting the battery device, the flanges can also better abut against the truck components on the upper part of the truck frame assembly 100 when they are supported by the truck frame assembly 100, thus providing better support.

[0042] In some embodiments of this application, the flange is parallel to the horizontal plane. Therefore, when the flange supports the components of the truck on the upper part of the truck frame assembly 100, the contact area is large, resulting in better load-bearing stability.

[0043] In some embodiments of this application, reference is made to Figure 1 As shown, among the multiple crossbeams 2, the crossbeam 2 connected to the second segment 12 is a reinforcing crossbeam 21. There are multiple reinforcing crossbeams 21, and along the vertical direction, the thickness of at least one of the reinforcing crossbeams 21 is greater than the thickness of the first segment 11.

[0044] In other words, the increased thickness of the second segment 12 increases the vertical space for the crossbeam 2, thereby increasing its thickness. This increases the structural strength of the crossbeam 2. Furthermore, the combination of the crossbeam 21 and the second segment 12 enhances the structural strength of the truck frame assembly 100, making it less prone to torsional deformation due to insufficient torsional stiffness. This, in turn, improves the reliability of the truck frame assembly 100.

[0045] In some embodiments of this application, the longitudinal beam 1 is a beam body integrally formed, thereby improving the structural strength of the longitudinal beam 1.

[0046] In some embodiments of this application, reference is made to Figure 1 As shown, one end of the first segment 11 is connected to the second segment 12, and at least a portion of the other end of the first segment 11 is bent away from the other longitudinal beam 1. The cab of the truck is mounted on the two first segments 11.

[0047] In other words, the first section 11 of the two longitudinal beams 1 bends in a direction away from each other, thereby increasing the layout space of the cab. Furthermore, the bending design of the first section 11 effectively disperses the impact force during a collision. When the truck encounters a side collision, the bent portion absorbs and buffers the energy, preventing the impact force from being directly transmitted to the cab, thus reducing the risk of cab deformation and providing a safe space for the driver. The cab is installed on the two first sections 11, and the specific bending structure forms a suitable mounting surface, simplifying the installation process and improving connection stability, reducing the risk of loosening due to vibration during driving. Moreover, the above-mentioned structure optimizes the center of gravity distribution of the cab, making the truck more stable to handle during driving.

[0048] This utility model also proposes a truck having the truck frame assembly 100 of the above embodiments.

[0049] According to the embodiments of the present invention, by providing the truck frame assembly 100 of the above embodiments, the weight and production cost of the truck can be reduced effectively.

[0050] In some embodiments of this utility model, reference is made to Figures 1-2 As shown, the truck also includes a cargo box assembly 200, which is mounted on the second section 12 of the two longitudinal beams 1.

[0051] In other words, the second segment 12 protrudes upward from the first segment 11, which is also beneficial for the assembly of the cargo box assembly 200. In related technologies, the structural form of cargo trucks generally adopts a combination of chassis main frame and superstructure subframe. This structure is a traditional fuel-powered truck solution. Using this structure in new energy vehicles results in heavy vehicle weight and high cost, leading to a consistently low market penetration rate for new energy trucks. Increasing the thickness of the second section 12 effectively integrates the chassis main frame and the superstructure subframe. In a traditional chassis main frame and superstructure subframe assembly, a connection is required, which is prone to failure or loosening, causing the cargo box assembly 200 to shift forward and backward. The one-piece second section 12 eliminates this connection, resulting in better stability after the cargo box assembly 200 is installed on it. Furthermore, the one-piece design reduces assembly difficulty, and the absence of a connecting structure also significantly reduces the weight and assembly cost of the truck frame assembly 100.

[0052] In some embodiments of this utility model, combined with Figures 1-4 As shown, the cargo box assembly 200 includes multiple cargo box beams 4 and connectors 5. The cargo box beams 4 are placed on the second section 12. One end of the connector 5 is connected to the cargo box beams 4, and the other end is connected to the side of the second section 12.

[0053] In other words, the increased thickness of the second section 12 provides a better supporting foundation for the cargo box crossbeam 4, reducing the risk of deformation and damage to the longitudinal beam 1 caused by long-term heavy loads, thus extending the vehicle's service life. The cargo box crossbeam 4 rests directly on the second section 12, allowing the weight of the cargo to be transferred vertically and efficiently to the longitudinal beam 1, reducing stress concentration and ensuring the stability of the cargo box during vehicle operation. The connector 5 connects the cargo box crossbeam 4 at one end and the side of the second section 12 at the other, creating a stable triangular connection structure. This effectively disperses the vibrations, bumps, and lateral forces experienced by the cargo box during driving and turning, preventing displacement of the cargo box crossbeam 4 and improving the overall deformation resistance of the cargo box. Furthermore, this design facilitates the disassembly and maintenance of the cargo box assembly 200. When it is necessary to replace the cargo box crossbeam 4 or the connector 5, the operation is simple and convenient, reducing maintenance and time costs.

[0054] The truck frame assembly 100 and other components and operations of the truck according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here. In this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A truck frame assembly (100) for a truck, the truck including a battery device, characterized in that, The truck chassis assembly (100) includes: The longitudinal beam (1) has two beams, which are spaced apart in the left-right direction; A crossbeam (2) is connected between two longitudinal beams (1); wherein, Along the front-to-back direction, the longitudinal beam (1) has a first segment (11) and a second segment (12). In the vertical direction, the thickness of the first segment (11) is less than the thickness of the second segment (12). A receiving space is formed between the second segments (12) of the two longitudinal beams (1), and the battery device is installed in the receiving space.

2. The truck frame assembly (100) according to claim 1, characterized in that, Along the vertical direction, at least a portion of the second segment (12) protrudes upward from the first segment (11).

3. The truck frame assembly (100) according to claim 2, characterized in that, Along the vertical direction, the portion of the second segment (12) that protrudes from the first segment (11) is a reinforcing segment (3). The reinforcing segment (3) extends along the front-back direction and includes a plate and a flange. The flange is connected to the upper side of the plate and folds towards another longitudinal beam (1).

4. The truck frame assembly (100) according to claim 3, characterized in that, The flange is parallel to the horizontal plane.

5. The truck frame assembly (100) according to claim 1, characterized in that, The crossbeams (2) are provided in multiple ways, and the multiple crossbeams (2) are arranged at intervals along the front-back direction. Among the multiple crossbeams (2), the crossbeam (2) connected to the second segment (12) is a reinforcing crossbeam (21). There are multiple reinforcing crossbeams (21) along the up-down direction. The thickness of at least one of the reinforcing crossbeams (21) is greater than the thickness of the first segment (11).

6. The truck frame assembly (100) according to claim 1, characterized in that, The longitudinal beam (1) is a beam body formed in one piece.

7. The truck frame assembly (100) according to claim 1, characterized in that, One end of the first segment (11) is connected to the second segment (12), and at least a portion of the other end of the first segment (11) is bent away from the other longitudinal beam (1), and the cab of the truck is mounted on the two first segments (11).

8. A truck, characterized in that, Includes the truck chassis assembly (100) according to any one of claims 1-7.

9. The truck according to claim 8, characterized in that, It also includes a cargo box assembly (200) mounted on the second section (12) of the two longitudinal beams (1).

10. The truck according to claim 9, characterized in that, The cargo box assembly (200) includes multiple cargo box beams (4) and connectors (5). The cargo box beams (4) are placed on the second section (12). One end of the connector (5) is connected to the cargo box beams (4), and the other end is connected to the side of the second section (12).

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