Reinforcing beam assembly, frame and vehicle

Abstract

The stiffening beam assembly is connected with a vehicle beam body and a vehicle bottom plate, the two sides of the vehicle beam body are connected with the vehicle bottom plate to form a cavity structure, and the stiffening beam assembly comprises a stiffening beam and a thermal expansion part. The reinforcing beam is arranged in the cavity structure, gaps are formed between the reinforcing beam and the vehicle beam body and between the reinforcing beam and the vehicle bottom plate, and the gaps are filled with the thermal expansion parts. The stiffening beam is installed in the cavity structure between the vehicle beam body and the vehicle bottom plate in the axial direction, the gaps between the stiffening beam and the vehicle beam body and between the stiffening beam and the vehicle bottom plate are filled with the thermal expansion parts, the thermal expansion parts with the light mass are used for replacing existing nylon filling blocks and filling structures, use of parts during stiffening beam installation is reduced, the technology is simple, and cost is low. And the effect of light weight can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile beam structures, and in particular to a reinforced beam assembly, a frame, and a vehicle. Background Technology

[0002] Automotive beam structures provide excellent axial support, ensuring that the passenger compartment does not deform significantly during a collision, thus protecting passenger safety. To improve the axial strength of automotive beam structures and minimize collision deformation, a pultruded profile is added to the automotive beam. Through layered weaving, it also provides some radial support, which can improve performance and reduce weight.

[0003] To minimize the opening and reduce the loss of mechanical properties, the existing solution for fixing pultruded profiles is to insert two nylon filler blocks at both ends of the profile and then fill the entire sill beam with structural design to achieve a fixing effect. This solution requires the addition of nylon block parts and fixing through structural design, which is a complex process and has a high cost. Utility Model Content

[0004] To address the technical challenges of complex and costly connection structures between reinforcing beams and vehicle beams when improving the mechanical properties of automotive beams, this invention provides a reinforcing beam assembly, a frame, and a vehicle.

[0005] To achieve the above objectives, this utility model provides a reinforcing beam assembly connected to a vehicle beam and a vehicle floor. The two sides of the vehicle beam are connected to the vehicle floor to form a cavity structure, including a reinforcing beam and a thermal expansion portion. The reinforcing beam is disposed in the cavity structure and there are gaps between the reinforcing beam and the vehicle beam and the vehicle floor. The thermal expansion portion fills the gaps.

[0006] Furthermore, grooves are provided on the top and bottom surfaces of the reinforcing beam, the grooves extending to both ends of the reinforcing beam along its length, and the thermal expansion portion filling the grooves.

[0007] Furthermore, multiple grooves are provided along the width direction of the reinforcing beam, and the thermal expansion portion is staggered in the multiple grooves along the length direction of the reinforcing beam.

[0008] Furthermore, the thermal expansion portion is arranged on the same vertical line in the groove along the vertical direction.

[0009] Furthermore, the thermal expansion portions partially overlap along the length direction of the reinforcing beam, and gaps are provided between adjacent thermal expansion portions along the width direction of the reinforcing beam.

[0010] Furthermore, each of the grooves is filled with the thermal expansion portion at both ends along the length of the reinforcing beam.

[0011] Furthermore, it also includes positioning brackets, which are disposed at both ends of the reinforcing beam along its length. The first end of the positioning bracket is connected to the inner wall of the vehicle beam, and the second end of the positioning bracket is connected to the outer wall of the reinforcing beam.

[0012] Furthermore, the first end and the second end of the positioning bracket are at different heights in the vertical direction, and the positioning bracket includes a bent portion disposed between the first end and the second end of the positioning bracket.

[0013] Furthermore, the positioning bracket is movably connected to the reinforcing beam.

[0014] Another objective of this embodiment is to provide a vehicle frame having the aforementioned reinforcing beam assembly, vehicle beam, and floor plate, wherein the reinforcing beam assembly is connected within the cavity structure formed by the vehicle beam and the floor plate.

[0015] Another object of this embodiment is to provide a vehicle that is provided with the above-described reinforcing beam assembly or frame.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0017] (1) A reinforcing beam is installed axially in the cavity structure between the vehicle beam and the floor. The gap between the reinforcing beam and the vehicle beam and the floor is filled by the thermal expansion part. By using the lighter thermal expansion part instead of the existing nylon filler block and filler structure, the number of parts used when installing the reinforcing beam is reduced. The process is simple and can also achieve the effect of weight reduction.

[0018] (2) The thermal expansion part is used as a support part to provide mechanical properties. Small brackets are set at both ends of the reinforcing beam to connect with the vehicle beam body to achieve the effect of positioning and simple fixation. It is not used as the main load-bearing component, which greatly optimizes the weight and cost. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional schematic diagram of the connection scheme for the reinforced beam assembly of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection scheme for the reinforced beam assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-section of the reinforcing beam of this utility model;

[0023] Figure 4 This is a schematic diagram of the thermal expansion part bonding scheme of this utility model;

[0024] Figure 5 This is a cross-sectional view of the positioning bracket of the reinforcing beam assembly of this utility model.

[0025] Explanation of reference numerals in the accompanying drawings: Vehicle beam -1; Vehicle floor -2; Reinforcing beam -3; Positioning bracket -4; Bending part -41; Thermal expansion part -5; Groove -6. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, deviating from the general scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] Furthermore, in the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms 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 component 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. In addition, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this utility model should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Example 1

[0033] Reference Figures 1-5 The present invention provides a reinforcing beam assembly connected to a vehicle beam 1 and a vehicle floor 2. The two sides of the vehicle beam 1 are connected to the vehicle floor 2 to form a cavity structure. In this embodiment, the vehicle beam 1 is a seat crossbeam, and the vehicle floor 2 is the front floor. The seat crossbeam and the front floor are welded together on both sides to form a crossbeam cavity. The reinforcing beam assembly is disposed within the cavity structure and includes a reinforcing beam 3 and a thermal expansion portion 5. The reinforcing beam 3, disposed within the cavity structure, improves the safety performance of the main body of the vehicle beam 1. Gaps exist between the reinforcing beam 3 and both the vehicle beam 1 and the vehicle floor 2, and the thermal expansion portion 5 fills these gaps. The thermal expansion portion 5 is a heat-expanded foam structure. Preferably, the thermal expansion portion 5... Part 5 uses epoxy resin foaming structural adhesive. The foaming temperature of the epoxy resin foaming structural adhesive is 140℃ and the time is 20 minutes. The electrophoretic baking temperature of the white body is 140℃ and the time is 25 minutes. Therefore, the thermal expansion part 5 can be expanded during the baking of the body. The thermal expansion part 5 fills the gap in the vertical direction between the reinforcing beam 3 and the vehicle beam 1 and the vehicle floor 2. The reinforcing beam 3 is formed and fixed by extrusion from top to bottom. Without adding any additional processes, the connection and support of the reinforcing beam 3 to the vehicle beam 1 and the vehicle floor 2 can be completed, which greatly saves the process cycle, replaces the existing nylon skeleton, provides mechanical properties, and has a low foam structure density, which is more advantageous in terms of weight, further optimizing the lightweight design.

[0034] It should be noted that, referring to Figures 1-5The length direction of the reinforcing beam 3 is represented by the Y direction, the width direction by the X direction, and the vertical direction by the Z direction. The reinforcing beam 3 is a pultruded profile, which is a high-content glass fiber + PP material. Through the pultrusion process, a profile with a constant cross-section is formed, and the axial strength can reach more than 1000MPa, which can play a role in improving performance.

[0035] In one embodiment, refer to Figure 3 The top and bottom surfaces of the reinforcing beam 3 are provided with grooves 6, which extend to both ends of the reinforcing beam 3 along its length. The thermal expansion part 5 is filled in the grooves 6, which provide expansion space for the thermal expansion part 5. Therefore, the thermal expansion part 5 does not need to fill the entire cavity structure between the vehicle beam 1 and the vehicle floor 2. While ensuring the connection and support of the reinforcing beam 3, the weight of the thermal expansion part 5 is further reduced.

[0036] In one embodiment, refer to Figure 1 and 3 Multiple grooves 6 are provided on the side wall of the reinforcing beam 3 along the width direction of the reinforcing beam 3. Along the length direction of the reinforcing beam 3, the thermal expansion part 5 is staggered in the multiple grooves 6. The thermal expansion part 5 adopts a foaming structure such as epoxy resin foaming structural adhesive. After high temperature baking, it has good adhesion, high expansion rate and high hardness. Therefore, under the premise of ensuring mechanical properties, the amount of thermal expansion part 5 used can be reduced, saving costs.

[0037] In one embodiment, the thermal expansion portion 5 is arranged in the groove 6 on the same vertical line in the vertical direction, so that when the thermal expansion portion 5 expands due to heat, the reinforcing beam 3 can be squeezed vertically with the vehicle beam 1 and the vehicle floor 2 in the height direction to fix the reinforcing beam 3. Furthermore, the thermal expansion portion 5 interacts with each other on the same vertical line to avoid deformation of the reinforcing beam 3.

[0038] In one embodiment, refer to Figure 4 The thermal expansion parts 5 are partially overlapped along the length direction of the reinforcing beam 3, ensuring that the thermal expansion parts 5 are provided at any position along the length direction of the reinforcing beam 3, and a gap is provided between adjacent thermal expansion parts 5 along the width direction of the reinforcing beam 3, further ensuring the axial safety performance of the reinforcing beam 3.

[0039] In one embodiment, refer to Figure 1 Each groove 6 is filled with thermal expansion parts 5 at both ends along the length of the reinforcing beam 3. When filling the thermal expansion parts 5, the thermal expansion parts 5 at both ends can be set to play a positioning role, fix the two ends first, and ensure the safety performance of the connection end.

[0040] In one embodiment, refer to Figure 1 , 2In addition to component 5, the reinforcing beam assembly also includes positioning brackets 4. Positioning brackets 4 are located at both ends of the reinforcing beam 3 along its length. The first end of the positioning bracket 4 is connected to the inner wall of the vehicle beam 1, and the second end of the positioning bracket 4 is connected to the outer wall of the reinforcing beam 3. That is, the positioning bracket 4 achieves the connection between the reinforcing beam 3 and the vehicle beam 1 in the gap between them. Therefore, the structure of the positioning bracket 4 is relatively small. The positioning bracket 4 is located at both ends in the axial direction and mainly plays a simple role in positioning and fixing before completing all processes. It is not used as a main load-bearing component. Therefore, it can be greatly optimized in terms of weight and cost, and ensures that the reinforcing beam 3 will not fall out of the correct position before the baking process.

[0041] In one embodiment, refer to Figure 5 The first and second ends of the positioning bracket 4 have different heights in the vertical direction. The positioning bracket 4 includes a bent part 41, which is disposed between the first and second ends of the positioning bracket 4. By setting the bent part 41 in the positioning bracket 4, it is possible to connect with the outer wall of the reinforcing beam 3 and the inner wall of the vehicle beam 1 at different heights. It is not necessary to set the positioning bracket 4 to the same thickness as the gap, which further reduces the weight of the positioning bracket 4.

[0042] It should be noted that the positioning bracket 4 is fixedly connected to the vehicle beam 1 and movably connected to the reinforcing beam 3. As a preferred option, the positioning bracket 4 and the reinforcing beam 3 are connected by rivets, which facilitates the disassembly and assembly of the reinforcing beam 3. Furthermore, the positioning bracket 4 is connected to the vehicle beam 1 by spot welding, and the positioning bracket 4 is fixedly set on the vehicle beam 1. During installation, there is no need to install too many parts, which simplifies the installation steps.

[0043] The working principle of the reinforcing beam assembly provided in this embodiment is as follows: The connection process of the reinforcing beam assembly is as follows: two corresponding grooves 6 are respectively set on the top and bottom surfaces of the reinforcing beam 3; thermal expansion parts 5 are pasted into the grooves 6; the two ends of the reinforcing beam 3 along the axial direction are riveted to the positioning brackets 4; the positioning brackets 4 at both ends are positioned and connected to the vehicle beam 1 by spot welding; the two sides of the vehicle beam 1 are connected to the vehicle floor 2 by lap spot welding, thereby realizing the welding of the reinforcing beam assembly; after welding, the vehicle body is subjected to 140°C for 20 minutes. The electrophoretic baking process of the bell causes the thermal expansion part 5 to foam and expand, filling the vertical space between the reinforcing beam 3 and the vehicle beam 1 and the floor 2. The reinforcing beam 3 is fixed by pressing from above and below. The support and positioning between the reinforcing beam 3 and the vehicle beam 1 and the floor 2 are achieved through the small positioning bracket 4 and the thermal expansion part 5. The mechanical properties are more stable than those of traditional bolts and snap-fit ​​methods. In addition, the thermal expansion part 5 uses thermal foam adhesive, which has strong adhesion, good stability and low density, which can significantly reduce the overall weight and cost, and has the characteristics of lightweight and economy.

[0044] Example 2

[0045] Unlike the above embodiments, this embodiment provides a vehicle frame with the aforementioned reinforcing beam assembly, vehicle beam 1, and vehicle floor 2. The vehicle beam 1 is a seat crossbeam, and the vehicle floor 2 is the front floor of the vehicle. The reinforcing beam assembly is connected in the cavity between the vehicle beam 1 and the vehicle floor 2, which improves the mechanical properties of the vehicle beam 1, significantly reduces the intrusion amount during axial impact, and has the characteristics of low cost and weight, and lightweight design.

[0046] Example 3

[0047] Unlike the above embodiments, this embodiment provides a vehicle equipped with the aforementioned reinforcing beam assembly or frame. The installation process of the reinforcing beam assembly is simple, which can significantly shorten the vehicle assembly time. Furthermore, while ensuring mechanical performance and safety, it can significantly reduce the overall weight, thereby achieving lightweighting.

[0048] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A reinforcing beam assembly connected to a vehicle beam (1) and a vehicle floor (2), wherein both sides of the vehicle beam (1) are connected to the vehicle floor (2) to form a cavity structure, characterized in that, It includes a reinforcing beam (3) and a thermal expansion section (5). The reinforcing beam (3) is disposed in the cavity structure and there are gaps between the reinforcing beam (3) and the vehicle beam (1) and the vehicle floor (2). The thermal expansion section (5) fills the gaps.

2. The reinforcing beam assembly according to claim 1, characterized in that, The upper top surface and lower bottom surface of the reinforcing beam (3) are provided with grooves (6), the grooves (6) extend to both ends of the reinforcing beam (3) along the length direction, and the thermal expansion part (5) fills the grooves (6).

3. The reinforcing beam assembly according to claim 2, characterized in that, Multiple grooves (6) are provided along the width direction of the reinforcing beam (3), and the thermal expansion part (5) is staggered in the multiple grooves (6) along the length direction of the reinforcing beam (3).

4. The reinforcing beam assembly according to claim 3, characterized in that, The thermal expansion portion (5) along the vertical direction is arranged on the same vertical line in the groove (6).

5. The reinforcing beam assembly according to claim 3, characterized in that, The thermal expansion portion (5) is partially overlapped along the length direction of the reinforcing beam (3), and a gap is provided between adjacent thermal expansion portions (5) along the width direction of the reinforcing beam (3).

6. The reinforcing beam assembly according to claim 3, characterized in that, Each of the grooves (6) is filled with the thermal expansion portion (5) at both ends along the length of the reinforcing beam (3).

7. The reinforcing beam assembly according to claim 1, characterized in that, It also includes a positioning bracket (4), which is disposed at both ends of the reinforcing beam (3) along the length direction. The first end of the positioning bracket (4) is connected to the inner wall of the vehicle beam (1), and the second end of the positioning bracket (4) is connected to the outer wall of the reinforcing beam (3).

8. The reinforcing beam assembly according to claim 7, characterized in that, The first end and the second end of the positioning bracket (4) are at different heights in the vertical direction. The positioning bracket (4) includes a bent part (41) which is disposed between the first end and the second end of the positioning bracket (4).

9. A vehicle frame, characterized in that, It includes a reinforcing beam assembly, a vehicle beam (1), and a vehicle floor (2) as described in any one of claims 1 to 8, wherein the reinforcing beam assembly is connected within the cavity structure formed by the vehicle beam (1) and the vehicle floor (2).

10. A vehicle, characterized in that, Includes the reinforcing beam assembly as described in any one of claims 1 to 8 or the frame as described in claim 9.

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