A pillar reinforcement assembly, side wall reinforcement assembly, vehicle body frame, and vehicle

Abstract

The utility model discloses a kind of A column upper reinforcement assembly, side wall reinforcement assembly, vehicle body frame and vehicle, A column upper reinforcement assembly includes: first hot gas expansion pipe, extend along the length direction of the A column upper reinforcement assembly, for directly connecting side wall outer plate, the first hot gas expansion pipe includes oppositely arranged first end and second end, the first end is used to connect A column lower reinforcement assembly, the first hot gas expansion pipe is also used to connect B column reinforcement assembly;Second hot gas expansion pipe, extend along the length direction of the A column upper reinforcement assembly, including oppositely arranged third end and fourth end, the third end connects the second end, the fourth end is used to connect C column reinforcement assembly;Wherein, the wall thickness of the first hot gas expansion pipe is greater than the wall thickness of the second hot gas expansion pipe.The A column upper reinforcement assembly, side wall reinforcement assembly, vehicle body frame and vehicle of the utility model can reduce its dead weight, and save material consumption.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an A-pillar reinforcement assembly, a side wall reinforcement assembly, a vehicle body frame, and a vehicle. Background Technology

[0002] The A-pillar reinforcement assembly is one of the core load-bearing components of a car body. One end connects to the lower A-pillar reinforcement assembly, the middle section connects to the B-pillar reinforcement assembly via a connecting structure, and the other end connects to the C-pillar reinforcement assembly, forming a crucial support structure running from the front to the middle of the vehicle body. In situations such as side collisions and front offset collisions, it must bear the task of load transfer and energy absorption, playing a vital role in the safety of the occupants. To meet collision safety standards, the overall dimensions, cross-sectional dimensions, and wall thickness of the existing A-pillar reinforcement assembly must be strictly matched to the stress requirements, making further reduction difficult. This results in the component being too heavy, increasing the overall vehicle weight, which is inconsistent with the trend of lightweight automotive development. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an A-pillar reinforcement assembly that can reduce its weight and save material usage.

[0004] This utility model also proposes a side reinforcement assembly having the above-mentioned A-pillar reinforcement assembly.

[0005] This utility model also proposes a vehicle frame having the above-mentioned side reinforcement assembly.

[0006] This utility model also proposes a vehicle having the above-mentioned vehicle body frame.

[0007] According to a first aspect embodiment of the present invention, the A-pillar reinforcement assembly includes: The first hot air expansion tube extends along the length of the upper reinforcement assembly of the A-pillar and is used to directly connect to the outer side panel. The first hot air expansion tube includes a first end and a second end that are disposed opposite to each other. The first end is used to connect to the lower reinforcement assembly of the A-pillar and the first hot air expansion tube is also used to connect to the reinforcement assembly of the B-pillar. The second hot air expansion tube extends along the length of the A-pillar upper reinforcement assembly and includes a third end and a fourth end disposed opposite to each other. The third end is connected to the second end, and the fourth end is used to connect to the C-pillar reinforcement assembly. The wall thickness of the first hot gas expansion tube is greater than that of the second hot gas expansion tube.

[0008] The A-pillar reinforcement assembly according to the embodiment of this utility model has at least the following beneficial effects: This design allows the first hot-puff tube to connect directly to the outer side panel, eliminating the need for an A-pillar reinforcement plate and an inner A-pillar panel. Under stress, the force is evenly distributed across the entire cross-section of the first hot-puff tube, resulting in strong bending and torsional resistance. Therefore, a relatively smaller cross-sectional size can meet the strength and performance requirements of the original structure, reducing the A-pillar obstruction angle and the driver's blind spot. Furthermore, the number of components is reduced, lowering management and tooling development costs, and reducing product weight. The wall thickness of the first hot-puff tube is greater than that of the second hot-puff tube. The first hot-puff tube, which connects both the A-pillar lower reinforcement assembly and the B-pillar reinforcement assembly, is the primary load-bearing component; its thicker wall ensures it meets strength requirements. The second hot-puff tube primarily serves as a structural connector, experiencing relatively less stress; its thinner wall allows for reduced material usage without compromising performance.

[0009] According to some embodiments of the present invention, the first hot air expansion tube and the second hot air expansion tube are formed separately, and the second end of the first hot air expansion tube is inserted and connected to the third end of the second hot air expansion tube.

[0010] According to some embodiments of the present invention, the second hot gas expansion tube includes a first section and a second section connected together, the second section being inserted into the first hot gas expansion tube, wherein the outer diameter of at least a portion of the second section is smaller than the outer diameter of the first section, so as to form a step at the connection between the first section and the second section.

[0011] According to some embodiments of the present invention, the wall thickness of the first hot air expansion tube is in the range of 2.0mm-3.0mm.

[0012] According to some embodiments of this utility model, the wall thickness of the second hot gas expansion tube ranges from 1.2mm to 2.0mm.

[0013] According to some embodiments of the present invention, the first hot gas expansion tube includes a first pipe beam and a first flange edge. The first pipe beam and the first flange edge are integrally formed. The first flange edge is connected to the first pipe beam and located on the radial outer side of the first pipe beam. The first flange edge extends along the length direction of the first pipe beam and is used to install a sealing strip.

[0014] According to some embodiments of the present invention, the second hot gas expansion tube includes a second pipe beam and a second flange edge. The second pipe beam and the second flange edge are integrally formed. The second flange edge is connected to the second pipe beam and located on the radially outer side of the second pipe beam. The second flange edge extends along the length direction of the second pipe beam and is used to install a sealing strip.

[0015] The side reinforcement assembly according to a second aspect of the present invention includes the upper A-pillar reinforcement assembly, the lower A-pillar reinforcement assembly, the B-pillar reinforcement assembly, and the C-pillar reinforcement assembly described in the above embodiments; The first end of the first hot air expansion tube is connected to the lower A-pillar reinforcement assembly, the fourth end of the second hot air expansion tube is connected to the C-pillar reinforcement assembly, and the B-pillar reinforcement assembly is located between the lower A-pillar reinforcement assembly and the C-pillar reinforcement assembly and is connected to the first hot air expansion tube.

[0016] According to some embodiments of the present invention, the first hot gas expansion tube includes a first pipe beam and a first flange edge. The first pipe beam and the first flange edge are integrally formed. One end of the first flange edge is connected to the first pipe beam, and the other end extends in a direction away from the first pipe beam. The first flange edge is used to install a sealing strip. The B-pillar reinforcement assembly includes a third hot air expansion tube, which is directly connected to the first flange edge.

[0017] According to a third aspect embodiment of the present invention, a vehicle frame includes a side outer panel and a side reinforcement assembly as described in the above embodiment. The side outer panel includes a first connecting portion, an outer panel, and a second connecting portion connected in sequence. The first connecting portion, the outer panel, and the second connecting portion form a receiving groove. The first hot air expansion tube includes a first pipe beam and a first flange edge. The first pipe beam and the first flange edge are integrally formed. The first pipe beam is at least partially disposed in the receiving groove, and the side wall of the first pipe beam is directly or indirectly connected to the first connecting portion.

[0018] According to some embodiments of the present invention, the second hot gas expansion tube includes a second pipe beam and a second flange edge, the second pipe beam and the second flange edge are integrally formed, the second pipe beam is at least partially disposed in the receiving groove, and the side wall of the second pipe beam is directly or indirectly connected to the first connecting part.

[0019] The vehicle according to a fourth aspect of the present invention includes the body frame described in the above embodiments.

[0020] 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

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the A-pillar reinforcement assembly in the background technology. Figure 2This is a schematic diagram of the A-pillar reinforcement assembly according to an embodiment of the present utility model; Figure 3 This is an exploded view of the A-pillar reinforcement assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the second hot air expansion tube of the A-pillar reinforcement assembly according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of the first hot air expansion tube cross-section of the A-pillar reinforcement assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the side reinforcement assembly according to an embodiment of the present utility model.

[0022] Figure label: 01. Reinforcing plate on A-pillar; 02. Inner plate on A-pillar; 03. Tube body; 100, First hot gas expansion tube; 110, First end; 120, Second end; 130, First pipe beam; 140, First flange edge; 200, Second hot gas expansion tube; 210, Third end; 220, Fourth end; 230, First section; 240, Second section; 250, Step; 260, Second tube beam; 261, First connecting plane; 262, Second connecting plane; 263, Third connecting plane; 264, Fourth connecting plane; 300. Connecting plate; 10. Upper A-pillar reinforcement assembly; 20. Side panel outer panel; 30. Lower A-pillar reinforcement assembly; 40. B-pillar reinforcement assembly; 50. Roof assembly. Detailed Implementation

[0023] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0025] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0028] In the description of the embodiments of this application, the technical terms "top", "bottom", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0030] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0031] For related technologies, please refer to Figure 1The A-pillar reinforcement assembly includes an A-pillar reinforcement plate 01, an A-pillar inner plate 02, and a tube 03. The A-pillar reinforcement plate 01 is connected to the tube 03 and also to the A-pillar inner plate 02 to form the A-pillar reinforcement assembly. The tube 03 is located within the cavity enclosed by the A-pillar reinforcement plate 01 and the A-pillar inner plate 02. The side outer plate is directly connected to either the A-pillar reinforcement plate 01 or the A-pillar inner plate 02. To meet collision safety standards, the existing A-pillar reinforcement assembly's overall dimensions, cross-sectional dimensions, and wall thickness must strictly match the stress requirements, making further reduction difficult. This results in the component's excessive weight, increasing the overall vehicle weight and contradicting the trend of lightweight automotive development.

[0032] Please refer to the following for details. Figures 2-6 This application provides an A-pillar reinforcement assembly 10, including a first hot air expansion tube 100 and a second hot air expansion tube 200. The first hot air expansion tube 100 extends along the length of the A-pillar reinforcement assembly 10, and the second hot air expansion tube 200 also extends along the length of the A-pillar reinforcement assembly 10. The hot air expansion tube is a type of tubing formed by a hot air expansion process, possessing relatively high strength. The specific forming process of the hot air expansion tube involves using high-pressure gas within a mold to expand a heated metal tubing.

[0033] Please refer to Figures 2-4 The first hot air expansion tube 100 is used to directly connect to the outer side panel 20. The outer side panel 20 is the external covering plate on the side of the vehicle body. It is understood that this solution eliminates the need for a reinforcing plate and an inner A-pillar panel; instead, the first hot air expansion tube 100 is directly connected to the outer side panel 20 for force transmission. Under stress, the force is evenly distributed across the entire cross-section of the first hot air expansion tube 100, resulting in strong overall bending and torsional resistance. The first hot air expansion tube 100 can be welded to the outer side panel 20.

[0034] Please refer to Figure 2 and Figure 3 The first hot air expansion tube 100 includes a first end 110 and a second end 120 disposed opposite to each other. The first end 110 is used to connect to the A-pillar lower reinforcement assembly 30 to achieve docking of the upper and lower parts of the A-pillar. The first hot air expansion tube 100 is also connected to the B-pillar reinforcement assembly 40, and enhances the anti-collision capability of the side of the vehicle body through the synergistic effect with the B-pillar reinforcement assembly 40.

[0035] The second hot air expansion tube 200 includes a third end 210 and a fourth end 220 disposed opposite to each other. The third end 210 is connected to the second end 120 to form an integral structure of the A-pillar reinforcement. The fourth end 220 is used to connect to the C-pillar reinforcement assembly, thereby realizing the connection between the A-pillar reinforcement assembly and the C-pillar reinforcement assembly.

[0036] The wall thickness of the first hot air expansion tube 100 is greater than that of the second hot air expansion tube 200. Since the first hot air expansion tube 100 needs to connect both the A-pillar lower reinforcement assembly and the B-pillar reinforcement assembly, it is the main load-bearing component, and the thicker wall thickness ensures that it meets the strength requirements. The second hot air expansion tube 200 mainly serves as a structural connector and is subjected to relatively less stress, so the thinner wall thickness can reduce the amount of material used without affecting performance.

[0037] In some embodiments, the wall thickness of the first hot gas expansion tube 100 ranges from 2.0 mm to 3.0 mm. For example, the wall thickness of the first hot gas expansion tube 100 is 2.0 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, or 3.0 mm.

[0038] In some embodiments, the wall thickness of the second hot gas expansion tube 200 ranges from 1.2 mm to 2.0 mm. For example, the wall thickness of the second hot gas expansion tube 200 is 1.2 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.8 mm, or 2.0 mm.

[0039] In some embodiments, the first hot gas expansion tube 100 and the second hot gas expansion tube 200 are manufactured separately, which allows for assembly after separate manufacturing, thereby reducing manufacturing difficulty and improving production efficiency. The second hot air expansion tube 200 is used to connect to the outer side panel 20. The connection method is not limited. For example, it can be indirectly connected by setting an intermediate plate. In other embodiments, the second hot air expansion tube 200 is used to directly connect to the outer side panel 20. It can be understood that the second hot air expansion tube 200 is connected to the outer side panel 20 to directly transmit force. When under force, the force can be evenly distributed on the entire cross section of the second hot air expansion tube 200. The whole has strong bending and torsional resistance. Therefore, the strength and performance of the original structure can be met by using a relatively small cross section size, reducing the number of parts, reducing management costs and tooling development costs, and reducing product weight.

[0040] In some embodiments, the second end 120 of the first hot air expansion tube 100 is plugged into the third end 210 of the second hot air expansion tube 200. The specific method of plugging in is not limited; for example, the second end 120 of the first hot air expansion tube 100 can be inserted into the third end 210 of the second hot air expansion tube 200, or the third end 210 of the second hot air expansion tube 200 can be inserted into the second end 120 of the first hot air expansion tube 100. Depending on the actual stress requirements, the plugging mating surfaces are fixed by welding to ensure the stability of the connection and prevent relative displacement or loosening during stress.

[0041] It is understandable that the plug-in method can form a nested connection structure at the connection point, thereby increasing the thickness of the connection and thus improving the connection strength.

[0042] Please refer to Figure 5 In some embodiments, the second hot gas expansion tube 200 includes a first segment 230 and a second segment 240 directly connected, wherein the first segment 230 and the second segment 240 are substantially conformal. The second segment 240 is inserted into the second end 120 of the first hot gas expansion tube 100, and the outer diameter of at least a portion of the second segment 240 is smaller than the outer diameter of the first segment 230, so as to form a step 250 at the connection between the first segment 230 and the second segment 240. It is understood that when the second segment 240 is inserted into the first hot gas expansion tube 100, the step 250 can abut against the first hot gas expansion tube 100, thereby limiting the insertion depth and thus improving assembly efficiency and consistency.

[0043] Among them, some or all of the areas where the second segment 240 connects to the first segment 230 have steps 250.

[0044] For example, the second hot air expansion tube 200 includes a second tube beam 260, which has a first connecting plane 261 and a second connecting plane 262. One end of a connecting plate 300 is provided on the first connecting plane 261, and the other end of the connecting plate 300 is connected to the roof assembly 50. The roof assembly is a structural component installed on the roof. When the roof has a sunroof, the roof assembly includes a sunroof mounting beam (in...). Figure 6 The structure designated as 50 is the mounting beam of the roof assembly. The first connecting plane 261 and the second connecting plane 262 intersect at an angle, forming an arc-shaped transition surface at the intersection. A step 250 is formed between the arc-shaped transition surface of the first segment 230 and the arc-shaped transition surface of the second segment 240.

[0045] The second pipe beam 260 also has a third connecting plane 263 and a fourth connecting plane 264. The third connecting plane 263 is located on the side of the second pipe beam 260 away from the first connecting plane 261, and the fourth connecting plane 264 is located on the side of the second pipe beam 260 away from the second connecting plane 262. The third connecting plane 263 and the fourth connecting plane 264 are inclined. The third connecting plane 263 and the fourth connecting plane 264 of the first segment 230 intersect, while the third connecting plane 263 and the fourth connecting plane 264 of the second segment 240 are not connected, forming a break. Thus, another step 250 is formed at the intersection of the port of the second segment 240 and the third connecting plane 263 and the fourth connecting plane 264 of the first segment 230.

[0046] It is understandable that the two steps 250 are located at the junction of the planes, which makes precision control relatively difficult. This causes the second segment 240 to be recessed or removed at the aforementioned position, thus forming step 250. This reduces the difficulty of insertion and facilitates axial auxiliary positioning of the two.

[0047] Please refer to Figure 4 In some embodiments, the first hot gas expansion tube 100 includes a first tube beam 130 and a first flange edge 140. The first tube beam 130 and the first flange edge 140 are integrally formed. The first tube beam 130 has a hollow structure. The first flange edge 140 is located outside the first tube beam 130. The first flange edge 140 is connected to the first tube beam 130 and is located on the radial outer side of the first tube beam 130. The first flange edge 140 extends along the length direction of the first tube beam 130 and is used to install a sealing strip.

[0048] Please refer to Figure 5 In some embodiments, the second hot gas expansion tube 200 includes a second tube beam 260 and a second flange edge, which are integrally formed. The second tube beam 260 has a hollow structure, and the second flange edge is located outside the second tube beam 260. The second flange edge connects to the second tube beam 260 and is located radially outside the second tube beam 260. The second flange edge extends along the length of the second tube beam 260 and is used to install a sealing strip. The second hot gas expansion tube 200 has a generally similar shape to the first hot gas expansion tube 100.

[0049] Understandably, the integrally formed pipe beam and flange eliminate the risk of stress concentration caused by welding, greatly avoiding the risk of weld tearing under extreme loads in traditional multi-layer plate welded structures, and the whole structure has strong bending and torsional resistance.

[0050] For example, the second flange edge of the second hot gas expansion tube 200 is located at the junction of the third connecting plane 263 and the fourth connecting plane 264. Since the second segment 240 needs to be inserted into the first hot gas expansion tube 100, the second flange edge corresponding to the second segment 240 needs to be removed.

[0051] Please refer to Figure 6 This application also provides a side reinforcement assembly, including an upper A-pillar reinforcement assembly 10, a lower A-pillar reinforcement assembly 30, a B-pillar reinforcement assembly 40, and a C-pillar reinforcement assembly.

[0052] The first end 110 of the first hot air expansion tube 100 is connected to the lower A-pillar reinforcement assembly 30, and the fourth end 220 of the second hot air expansion tube 200 is connected to the C-pillar reinforcement assembly. The B-pillar reinforcement assembly 40 is located between the lower A-pillar reinforcement assembly 30 and the C-pillar reinforcement assembly and is connected to the first hot air expansion tube 100. This forms a unified whole capable of mutual load-bearing, improving the stability and reliability of the structure.

[0053] In some embodiments, the B-pillar reinforcement assembly 40 includes a third hot air expansion tube 41, which is directly connected to the first flange edge 140. It is understood that since the first hot air expansion tube 100 is directly connected to the outer side panel 20, the A-pillar upper reinforcement plate and the A-pillar upper inner panel are omitted. This allows the first flange edge 140 to be directly connected to the third hot air expansion tube of the B-pillar reinforcement assembly 40. When external force acts on the A-pillar upper reinforcement assembly, the third hot air expansion tube supports the first hot air expansion tube 100 to further enhance its bending and torsional resistance. Furthermore, there is no need for a connecting piece between the two for force transmission, reducing the amount of welding, lowering the risk of weld tearing, and improving reliability. The B-pillar reinforcement assembly 40 also includes a B-pillar reinforcement plate 42, which is connected to the first hot air expansion tube 100. The B-pillar reinforcement plate 42 and the third hot air expansion tube 41 are located on opposite sides of the first flange edge 140.

[0054] In some embodiments, one end of the third hot gas expansion tube directly connected to the first flange edge 140 is located on the side of the first flange edge 140 away from the side outer plate 20. That is, a bidirectional connection structure is formed on the first flange edge 140, with one side connected to the side outer plate 20 and the other side connected to the third hot gas expansion tube. Thus, when one is deformed by external force, the other can support the first flange edge 140, thereby suppressing the deformation of the first flange edge 140 and further improving the stability of the connection.

[0055] This application embodiment also provides a vehicle body frame, including a side outer panel 20 and a side reinforcement assembly, the side reinforcement assembly being distributed on the inner side of the side outer panel 20.

[0056] The side panel 20 includes a first connecting part 201, an outer panel 202, and a second connecting part 203 connected in sequence. The first connecting part 201, the outer panel 202, and the second connecting part 203 form a receiving groove. A portion of the first connecting part 201 constitutes the side wall of the receiving groove, a portion of the second connecting part 203 constitutes the other side wall of the receiving groove, and the outer panel 202 constitutes the bottom wall of the receiving groove.

[0057] The first hot gas expansion tube 100 includes a first tube beam 130 and a first flange edge 140, which are integrally formed. The first tube beam 130 is at least partially disposed in a receiving groove, and the side wall of the first tube beam 130 is directly or indirectly connected to the first connecting part 201. The side wall of the first tube beam 130 can be directly or indirectly connected to the first connecting part 201.

[0058] The second hot gas expansion tube 200 includes a second tube beam 260 and a second flange edge, which are integrally formed. The second tube beam 260 is at least partially disposed within the receiving groove, and the side wall of the second tube beam 260 is directly or indirectly connected to the first connecting part 201. Specifically, the side wall of the second tube beam 260 can be directly or indirectly connected to the first connecting part 201.

[0059] In some embodiments, the vehicle frame also includes a structural adhesive layer that connects the first hot air expansion tube 100 to the side outer panel 20 and the second hot air expansion tube 200 to the side outer panel 20, thereby improving the reliability and structural strength of the connection between the first hot air expansion tube 100, the second hot air expansion tube 200 and the side outer panel 20, and also achieving sealing.

[0060] This application also provides a vehicle, including a body frame. In the event of a collision, the A-pillar reinforcement assembly 10, the B-pillar reinforcement assembly 40, and the C-pillar reinforcement assembly can work together to effectively disperse and transfer collision energy, protecting the integrity of the passenger compartment.

[0061] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. An A-pillar reinforcement assembly, characterized in that, include: The first hot air expansion tube extends along the length of the upper reinforcement assembly of the A-pillar and is used to directly connect to the outer side panel. The first hot air expansion tube includes a first end and a second end that are disposed opposite to each other. The first end is used to connect to the lower reinforcement assembly of the A-pillar and the first hot air expansion tube is also used to connect to the reinforcement assembly of the B-pillar. The second hot air expansion tube extends along the length of the A-pillar upper reinforcement assembly and includes a third end and a fourth end disposed opposite to each other. The third end is connected to the second end, and the fourth end is used to connect to the C-pillar reinforcement assembly. The wall thickness of the first hot gas expansion tube is greater than that of the second hot gas expansion tube.

2. The A-pillar reinforcement assembly according to claim 1, characterized in that, The first hot gas expansion tube and the second hot gas expansion tube are formed separately, and the second end of the first hot gas expansion tube is inserted and connected to the third end of the second hot gas expansion tube.

3. The A-pillar reinforcement assembly according to claim 2, characterized in that, The second hot gas expansion tube includes a first section and a second section connected together. The second section is inserted into the first hot gas expansion tube, wherein the outer diameter of at least a portion of the second section is smaller than the outer diameter of the first section, so as to form a step at the connection between the first section and the second section.

4. The A-pillar reinforcement assembly according to claim 1, characterized in that, The wall thickness of the first hot gas expansion tube ranges from 2.0 mm to 3.0 mm; And / or, The wall thickness of the second hot gas expansion tube ranges from 1.2mm to 2.0mm.

5. The A-pillar reinforcement assembly according to claim 1, characterized in that, The first hot gas expansion tube includes a first pipe beam and a first flange edge. The first pipe beam and the first flange edge are integrally formed. The first flange edge is connected to the first pipe beam and is located on the radial outer side of the first pipe beam. The first flange edge extends along the length direction of the first pipe beam and is used to install a sealing strip. And / or, The second hot gas expansion tube includes a second pipe beam and a second flange edge. The second pipe beam and the second flange edge are integrally formed. The second flange edge is connected to the second pipe beam and is located on the radially outer side of the second pipe beam. The second flange edge extends along the length direction of the second pipe beam and is used to install a sealing strip.

6. The side reinforcement assembly, characterized in that, Includes the upper A-pillar reinforcement assembly, the lower A-pillar reinforcement assembly, the B-pillar reinforcement assembly, and the C-pillar reinforcement assembly as described in any one of claims 1-5; The first end of the first hot air expansion tube is connected to the lower A-pillar reinforcement assembly, the fourth end of the second hot air expansion tube is connected to the C-pillar reinforcement assembly, and the B-pillar reinforcement assembly is located between the lower A-pillar reinforcement assembly and the C-pillar reinforcement assembly and is connected to the first hot air expansion tube.

7. The side reinforcement assembly according to claim 6, characterized in that, The first hot gas expansion tube includes a first pipe beam and a first flange edge. The first pipe beam and the first flange edge are integrally formed. One end of the first flange edge is connected to the first pipe beam, and the other end extends in a direction away from the first pipe beam. The first flange edge is used to install a sealing strip. The B-pillar reinforcement assembly includes a third hot air expansion tube, which is directly connected to the first flange edge.

8. A vehicle frame, characterized in that, The invention includes a side panel and a side reinforcement assembly as described in any one of claims 6-7. The side panel includes a first connecting portion, an outer plate, and a second connecting portion connected in sequence, wherein the first connecting portion, the outer plate, and the second connecting portion form a receiving groove. The first hot gas expansion tube includes a first tube beam and a first flange edge. The first tube beam and the first flange edge are integrally formed. The first tube beam is at least partially disposed in the receiving groove, and the side wall of the first tube beam is directly or indirectly connected to the first connecting part.

9. The vehicle frame according to claim 8, characterized in that, The second hot gas expansion tube includes a second pipe beam and a second flange edge. The second pipe beam and the second flange edge are integrally formed. The second pipe beam is at least partially disposed in the receiving groove, and the side wall of the second pipe beam is directly or indirectly connected to the first connecting part.

10. A vehicle, characterized in that, Includes the vehicle frame as described in any one of claims 8-9.

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