Automobile longitudinal beam root, chassis and automobile

Abstract

The utility model provides an automobile longitudinal beam root part, a chassis and an automobile, relates to the technical field of automobile structures, and is used for supporting a front wall cross beam of the automobile, the longitudinal beam root part comprises a longitudinal beam root part body, and a cavity is formed in the longitudinal beam root part body along the axial direction of the longitudinal beam root part body; the supporting component is arranged in the cavity, and the supporting component is arranged in the axial direction of the longitudinal beam root body; an effective supporting component which is in lap joint with the front wall cross beam and provided with a cavity can be formed in the longitudinal beam root body, the bending resistance of the longitudinal beam root can be effectively improved, and the space utilization rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of automotive structural technology, and more specifically, relates to the root of an automotive longitudinal beam, a chassis, and an automotive. Background Technology

[0002] To significantly increase the battery capacity of electric vehicles, a CTC (Cell-to-Cover) structure has emerged, where the battery pack is integrated with the vehicle body. The battery pack becomes part of the vehicle body, the floor serves as the upper casing of the battery pack, and the battery frame replaces the door sill. Compared to traditional models, this design... Figure 1 and Figure 2 As shown, the battery chassis integrated structure 10 does not have a central channel structure. The front crossbeam 1 is mainly supported by the longitudinal beams on both sides. When the longitudinal beams, motors and other front structures transmit collision forces, they need to be borne by the body 2 at the root of the longitudinal beam. The root of the longitudinal beam needs to have strong bending resistance.

[0003] Existing longitudinal beam root structures include two forms: cast aluminum and sheet metal. This application optimizes the sheet metal form of the longitudinal beam root. In traditional vehicle models, the sheet metal form of the longitudinal beam root is formed by welding sheet metal to create a cavity. The cavity size is relatively large and does not have strong bending stiffness. Sheet metal is prone to warping, which can lead to structural bending. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a longitudinal beam root, chassis, and automobile, in order to solve the problems mentioned in the background art. The longitudinal beam root of traditional vehicle models is formed by welding sheet metal to create a cavity, and the cavity size is relatively large, which does not have strong bending stiffness and the sheet metal is prone to warping, leading to structural bending.

[0005] To achieve the above objectives, this utility model provides a longitudinal beam root for supporting the front crossbeam of an automobile, the longitudinal beam root comprising:

[0006] The root body of the longitudinal beam has a cavity inside along the axial direction of the root body of the longitudinal beam;

[0007] A support member is disposed within the cavity and is arranged axially along the root body of the longitudinal beam.

[0008] Preferably, the cavity includes a first cavity and a second cavity, the first cavity is bent, the second cavity is formed in the concave position of the first cavity, and the support member is connected to the two inner sides of the first cavity, thereby dividing the first cavity into two cavities.

[0009] Preferably, the root body of the longitudinal beam includes:

[0010] Intermediate plate;

[0011] An outer side plate, which together with the middle plate forms the first cavity;

[0012] The inner side plate and the middle plate form the second cavity.

[0013] Preferably, the supporting member is a partition.

[0014] Preferably, the outer side plate includes a first plate and a second plate. The first plate is L-shaped, one end of the first plate is connected to the middle plate, and the bent portion of the first plate is connected to one end of the second plate. The supporting member is the portion on the first plate between one end of the first plate and the bent portion of the first plate.

[0015] Preferably, one end of the second plate is bent outwards towards the first cavity to form a concave surface, and the bent portion of the first plate overlaps within the concave surface.

[0016] Preferably, one end of the intermediate plate is bent and attached to the extended portion of the other end of the first plate.

[0017] Preferably, the root body of the longitudinal beam is a sheet metal type.

[0018] An automobile chassis, the chassis comprising:

[0019] Front crossbeam;

[0020] An integrated battery chassis structure, wherein the integrated battery chassis structure is connected to the front crossbeam;

[0021] The roots of the two automotive longitudinal beams are connected to both ends of the front crossbeam and to both sides of the integrated battery chassis structure.

[0022] An automobile, comprising an automobile chassis.

[0023] This utility model provides a longitudinal beam root, chassis, and automobile. Its advantages are as follows: the support member of the longitudinal beam root is set in a cavity and is arranged along the axial direction of the longitudinal beam root body. An effective support member with a cavity can be formed in the longitudinal beam root body to overlap with the front crossbeam, which can effectively improve the bending resistance of the longitudinal beam root and improve the space utilization rate.

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

[0025] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0026] Figure 1 A schematic diagram of the existing longitudinal beam bending upon impact at the root is shown;

[0027] Figure 2 A schematic diagram of the existing longitudinal beam root is shown;

[0028] Figure 3 A top view of an automobile chassis according to an embodiment of the present invention is shown.

[0029] Figure 4 It shows Figure 3 Schematic diagram of cross-sectional structure at point AA Figure 1 ;

[0030] Figure 5 It shows Figure 3 Schematic diagram of cross-sectional structure at point AA Figure 1 ;

[0031] Figure 6 A schematic diagram of the structure of the root of a car longitudinal beam according to an embodiment of the present invention is shown.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Front crossbeam; 2. Root body of longitudinal beam; 3. Supporting component; 4. First cavity; 5. Second cavity; 6. Concave surface; 7. Middle plate; 8. Outer plate; 81. First plate; 82. Second plate; 9. Inner plate; 10. Integrated battery chassis structure. Detailed Implementation

[0034] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] This utility model provides a longitudinal beam root for supporting the front crossbeam 1 of an automobile, the longitudinal beam root comprising:

[0036] The root body 2 of the longitudinal beam has a cavity inside along the axial direction of the root body 2.

[0037] Support member 3 is installed inside the cavity and is arranged along the axial direction of the body 2 at the root of the longitudinal beam.

[0038] Specifically, to address the problem that the longitudinal beam root of traditional vehicle models is formed by welding sheet metal to create a cavity, and that the cavity is relatively large and lacks strong bending stiffness, making the sheet metal prone to warping and causing structural bending, this application provides a longitudinal beam root for automobiles. The support member 3 of the longitudinal beam root is set inside the cavity and is arranged along the axial direction of the longitudinal beam root body 2. An effective support member 3 with a cavity can be formed inside the longitudinal beam root body 2, which overlaps with the front crossbeam 1, effectively improving the bending resistance of the longitudinal beam root and increasing space utilization.

[0039] Preferably, the cavity includes a first cavity 4 and a second cavity 5. The first cavity 4 is bent, and the second cavity 5 is formed in the concave position of the first cavity 4. The support member 3 is connected to the two sides inside the first cavity 4 and divides the first cavity 4 into two cavities.

[0040] Specifically, the support member 3 divides the existing large first cavity 4 into two smaller cavities. The support member 3 can effectively improve the bending resistance at the root of the longitudinal beam and improve space utilization.

[0041] Preferably, the root body of the longitudinal beam includes:

[0042] Intermediate plate 7;

[0043] The outer side plate 8 and the middle plate 7 form the first cavity 4;

[0044] The inner side plate 9 and the middle plate 7 form a second cavity 5.

[0045] Specifically, the connection points between the middle plate 7, the outer plate 8, and the inner plate 9 are all welded together.

[0046] Preferably, the supporting member 3 is a partition.

[0047] Specifically, partitions can effectively improve the bending resistance at the root of longitudinal beams and enhance space utilization.

[0048] Preferably, the outer side plate 8 includes a first plate 81 and a second plate 82. The first plate 81 is L-shaped. One end of the first plate 81 is connected to the middle plate 7. The bent portion of the first plate 81 is connected to one end of the second plate 82. The support member 3 is the portion on the first plate 81 between one end of the first plate 81 and the bent portion of the first plate 81.

[0049] Specifically, the partial partition structure on the first plate 81, between one end of the first plate 81 and the bent portion of the first plate 81, can effectively improve the bending resistance at the root of the longitudinal beam and enhance space utilization.

[0050] Preferably, one end of the second plate 82 is bent outward to form a concave surface 6 in the first cavity 4, and the bent portion of the first plate 81 overlaps in the concave surface 6.

[0051] Specifically, the concave surface 6 is used to achieve a stable connection to the bent portion of the first plate 81.

[0052] Preferably, one end of the intermediate plate 7 is bent and connected to the extended portion of the other end of the first plate 81.

[0053] Specifically, one end of the middle plate 7 is attached to the other end of the first plate 81 to form a cavity structure that overlaps with the front crossbeam 1, which can effectively improve the bending resistance of the root of the longitudinal beam and improve the space utilization rate.

[0054] Preferably, the root body 2 of the longitudinal beam is a sheet metal root body of the longitudinal beam.

[0055] An automobile chassis, the chassis comprising:

[0056] Front crossbeam 1;

[0057] The battery chassis integrated structure 10 is connected to the front crossbeam 1; the roots of the two automotive longitudinal beams are respectively connected to the two ends of the front crossbeam 1 and to both sides of the battery chassis integrated structure 10.

[0058] An automobile, comprising an automobile chassis.

[0059] In summary, when the longitudinal beam root of this application is implemented on the chassis, an effective support member 3 with a cavity can be formed in the longitudinal beam root body 2, which overlaps with the front crossbeam 1. The support member 3 can be a part on the partition or the first plate 81 and between one end of the first plate 81 and the bent part of the first plate 81, which can effectively improve the bending resistance of the longitudinal beam root and improve the space utilization rate.

[0060] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A root of a longitudinal beam for supporting the front crossbeam of an automobile, characterized in that, The root of the longitudinal beam includes: The root body of the longitudinal beam has a cavity inside along the axial direction of the root body of the longitudinal beam; A support member is disposed within the cavity and is arranged axially along the root body of the longitudinal beam.

2. The root of a vehicle longitudinal beam according to claim 1, characterized in that, The cavity includes a first cavity and a second cavity. The first cavity is bent, and the second cavity is formed in the concave position of the first cavity. The support member is connected to both sides of the interior of the first cavity and divides the first cavity into two cavities.

3. The root of a vehicle longitudinal beam according to claim 2, characterized in that, The root body of the longitudinal beam includes: Intermediate plate; An outer side plate, which together with the middle plate forms the first cavity; The inner side plate and the middle plate form the second cavity.

4. The root of a vehicle longitudinal beam according to claim 3, characterized in that, The supporting component is a partition.

5. The root of a vehicle longitudinal beam according to claim 3, characterized in that, The outer side plate includes a first plate and a second plate. The first plate is L-shaped, one end of the first plate is connected to the middle plate, and the bent portion of the first plate is connected to one end of the second plate. The supporting member is the portion on the first plate between one end of the first plate and the bent portion of the first plate.

6. The root of a vehicle longitudinal beam according to claim 5, characterized in that, One end of the second plate is bent outwards towards the first cavity to form a concave surface, and the bent portion of the first plate overlaps within the concave surface.

7. The root of a vehicle longitudinal beam according to claim 6, characterized in that, One end of the intermediate plate is bent and connected to the extended portion of the other end of the first plate.

8. The root of a vehicle longitudinal beam according to claim 1, characterized in that, The root body of the longitudinal beam is a sheet metal type.

9. An automobile chassis, characterized in that, The chassis includes: Front crossbeam; An integrated battery chassis structure, wherein the integrated battery chassis structure is connected to the front crossbeam; The root of a vehicle longitudinal beam as described in any one of claims 1-8 is connected to both ends of the front crossbeam and to both sides of the integrated battery chassis structure.

10. A car, characterized in that, The vehicle includes a chassis as described in claim 9.

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