Rolling frame beam

Abstract

The utility model provides a rolling frame beam. A first notch structure and a second notch structure are connected to form a first cavity structure; two first joints of the first notch structure and the second notch structure are connected through a first supporting structure, and the first cavity structure is divided into a first cavity and a second cavity; the first joint is connected with the third notch structure through a connecting structure; the third notch structure is connected with the first notch structure to form a second joint; the connecting structure, the third notch structure and the first notch structure form a second cavity structure; the connecting structure and the second connecting position are connected through a second supporting structure, and the second cavity structure is divided into a third cavity and a fourth cavity. According to the rolling frame beam, the collision strength and the overall rigidity of a frame can be improved, and meanwhile the rolling frame beam has better structural stability and torsional strength.

Description

Technical Field

[0001] The utility model relates to the technical field of roll-formed profiles, and particularly to a roll-formed frame beam. Background Art

[0002] The existing frame beams generally adopt a "day" - shaped structure with two cavities and a polygon tube welded together, or the "day" - shaped structures with two cavities are welded together, as shown in Fig.11 and Fig.12 The disadvantages of the above structures are as follows: a. Two different structures need to be welded offline, resulting in a reduced processing efficiency. There are many welding positions in the structure, leading to high costs, and dimensional deformation will occur after welding, with low part quality accuracy; b. At the welded joints of the structure, there are two layers of materials, the structure is heavier, and the lightweight effect is not obvious; c. After the structure is subsequently combined into a battery pack frame, in order to ensure the anti - corrosion quality, electrophoretic processing is required. However, there are small gaps between the double - layer materials at the welded joints, and the electrophoretic effect is poor, resulting in a risk of corrosion intolerance. Summary of the Utility Model

[0003] Aiming at the defects in the prior art, the purpose of the utility model is to provide a roll - formed frame beam.

[0004] According to the roll - formed frame beam provided by the utility model, it includes: a first notch structure, a second notch structure, a first support structure, a connecting structure, a third notch structure, and a second support structure;

[0005] The first notch structure and the second notch structure are connected to form a first cavity structure; two first connection parts of the first notch structure and the second notch structure are connected through the first support structure, dividing the first cavity structure into a first cavity and a second cavity;

[0006] The first connection part and the third notch structure are connected through the connecting structure; the third notch structure is connected to the first notch structure to form a second connection part; the connecting structure, the third notch structure, and the first notch structure form a second cavity structure; the connecting structure and the second connection part are connected through the second support structure, dividing the second cavity structure into a third cavity and a fourth cavity.

[0007] Preferably, the first notch structure, the second notch structure, the first support structure, the connecting structure, the third notch structure, and the second support structure are integrally formed.

[0008] Preferably, the first cavity, the second cavity, the third cavity, and the fourth cavity are formed by continuously roll - forming a steel strip.

[0009] Preferably, the first recess structure comprises a first supporting arm, a first bottom wall and a second supporting arm which are connected to each other;

[0010] One side of the first support arm and one side of the second support arm are connected through the first bottom wall to form a notch structure; the other side of the first support arm and the other side of the second support arm are connected through the first support structure;

[0011] The first supporting arm, the first bottom wall, the second supporting arm and the first supporting structure form the first cavity.

[0012] Preferably, the second recess structure comprises a third supporting arm, a top wall and a fourth supporting arm connected;

[0013] One side of the third support arm and one side of the fourth support arm are connected through the top wall to form a notch structure; the other side of the third support arm is connected to the second support arm, and the other side of the fourth support arm is connected to the first support arm;

[0014] The third support arm, the top wall, the fourth support arm and the first support structure form the second cavity;

[0015] One side of the connecting structure is connected to the fourth supporting arm, and the other side of the connecting structure is connected to the third notch structure.

[0016] Preferably, the third recess structure comprises a fifth supporting arm, a second bottom wall and a sixth supporting arm;

[0017] One side of the fifth support arm and one side of the sixth support arm are connected via the second bottom wall; the other side of the fifth support arm is connected to the connecting structure, and the other side of the sixth support arm is connected to the first support arm.

[0018] Preferably, one side of the second supporting structure is connected to the connecting structure, and the other side of the second supporting structure is connected to the sixth supporting arm;

[0019] The connecting structure, the fifth supporting arm, the second bottom wall, the sixth supporting arm and the second supporting structure form the third cavity;

[0020] The connecting structure, the second supporting structure and the first supporting arm form the fourth cavity.

[0021] Preferably, the first supporting structure is connected to the third supporting arm via a curved structure; the second supporting structure is connected to the connecting structure via a curved structure;

[0022] Alternatively, the second supporting arm is connected to the first supporting structure via a bent angle structure; the second supporting structure is connected to the connecting structure via a bent angle structure.

[0023] Preferably, the sixth support arm is connected to the first support arm via a flat wall structure, and the second support structure is connected to the flat wall structure.

[0024] Preferably, the first supporting structure, the first supporting arm, the first bottom wall, the second supporting arm, the third supporting arm, the top wall, the fourth supporting arm, the connecting structure, the fifth supporting arm, the second bottom wall, the sixth supporting arm and the second supporting structure are integrally formed and connected in sequence;

[0025] Alternatively, the second support arm, the first bottom wall, the first support arm, the first support structure, the third support arm, the top wall, the fourth support arm, the connecting structure, the fifth support arm, the second bottom wall, the sixth support arm and the second support structure are integrally formed in sequence.

[0026] Preferably, the first supporting structure is welded to the third supporting arm through the angle structure to form a first welding point; the fourth supporting arm is welded to the first supporting arm through the angle structure to form a second welding point; the sixth supporting arm is welded to the first supporting arm through the angle structure to form a third welding point; the second supporting structure is welded to the connecting structure through the angle structure to form a fourth welding point;

[0027] Or, the second support arm is welded to the first support structure through an angle structure to form a first welding point; the fourth support arm is welded to the first support arm to form a second welding point; the sixth support arm is welded to the first support arm to form a third welding point; the second support structure is welded to the connecting structure through the angle structure to form a fourth welding point.

[0028] Preferably, a sealing step is provided on the first bottom wall.

[0029] Preferably, the connection structure comprises a first connection wall and a second connection wall;

[0030] One side of the connecting wall is connected to the fourth supporting arm, and the other side of the connecting wall is connected to the second supporting structure;

[0031] One side of the second connecting wall is connected to the first connecting wall or the second supporting structure, and the other side of the second connecting wall is connected to the fifth supporting arm.

[0032] Preferably, when one side of the second connecting wall is connected to the first connecting wall;

[0033] A first bending connection structure is provided on the first connecting wall, and a side edge of the second connecting wall is connected to the first bending connection structure;

[0034] The third supporting arm is provided with a second bending connecting structure, and a side edge of the second supporting arm is connected to the second bending connecting structure.

[0035] Preferably, when one side edge of the second connecting wall is connected to the second supporting structure, the second connecting wall is connected to the second supporting structure via a curved angle structure.

[0036] Compared with the prior art, the utility model has the following beneficial effects:

[0037] 1. The utility model can improve the collision strength and overall rigidity of the frame, and at the same time has better structural stability and torsional strength. When the vehicle body is subjected to collision impact, the structure can rely on the frame beam structure to resist the energy of the impact, and has a certain energy absorption effect, which can protect the battery cells inside the battery pack from being squeezed, thereby preventing the battery cells from catching fire and exploding after being damaged, thereby improving the safety of the battery pack.

[0038] 2. The structure of the utility model is one-piece molding, which allows the steel strip to be leveled, punched, rolled, welded, straightened and cut at one time, avoiding subsequent welding processes and post-welding deformation, simplifying the process, reducing the number of welding times, and reducing processing costs. At the same time, product accuracy is improved and overall processing efficiency is improved.

[0039] 3. In order to prevent the existence of electrophoresis blind areas, the utility model reduces the bonding length of the four laser welded closed positions of the structure as much as possible while ensuring the welding strength, so that all the bonding positions are connected by welds, avoiding the generation of gaps at the unwelded bonding positions and preventing the risk of corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0041] Figure 1 The structure of the roller-pressed frame beam in the first embodiment is shown in FIG. Figure 1 ;

[0042] Figure 2 The structure of the roller-pressed frame beam in the first embodiment is shown in FIG. Figure 2 ;

[0043] Figure 3 It is a schematic diagram of the structure of the roller-pressed frame beam in the second embodiment;

[0044] Figure 4 Schematic diagram of the roll - pressed frame beam in Embodiment 3 Figure 1 ;

[0045] Figure 5 Schematic diagram of the roll - pressed frame beam in Embodiment 3 Figure 2 ;

[0046] Figure 6 Schematic diagram of the roll - pressed frame beam in Embodiment 4;

[0047] Figure 7 Schematic diagram of the roll - pressed frame beam in Embodiment 5;

[0048] Figure 8 Schematic diagram of the roll - pressed frame beam in Embodiment 6;

[0049] Fig. 9 Schematic diagram of the roll - pressed frame beam in Embodiment 7;

[0050] Fig.10 Schematic diagram of the roll - pressed frame beam in Embodiment 8;

[0051] Fig.11 Schematic diagram of the structure of the combination welding of the Chinese character "Ri" - shaped structure and the polygon tube in the prior art;

[0052] Fig.12 Schematic diagram of the structure of the combination welding of two Chinese character "Ri" - shaped structures.

[0053] Shown in the figure:

[0054] First notch structure 1 Second connecting wall 502

[0055] First support arm 101 Second support structure 6

[0056] First bottom wall 102 First cavity 7

[0057] Second support arm 103 Second cavity 8

[0058] Second notch structure 2 Third cavity 9

[0059] Third support arm 201 Fourth cavity 10

[0060] Top wall 202 Bend angle structure 11

[0061] Fourth support arm 203 Flat wall structure 12

[0062] Third notch structure 3 First welding point 13

[0063] Fifth support arm 301 Second welding point 14

[0064] Second bottom wall 302 Third welding point 15

[0065] Sixth support arm 303 Fourth welding point 16

[0066] First support structure 4 Sealing step 17

[0067] Connection structure 5 First bending connection structure 18

[0068] First connecting wall 501 Second bending connecting structure 19 DETAILED DESCRIPTION

[0069] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0070] Embodiment 1:

[0071] like Figure 1 and Figure 2 As shown, this embodiment provides a roller-pressed frame beam, including: a first notch structure 1, a second notch structure 2, a first supporting structure 4, a connecting structure 5, a third notch structure 3 and a second supporting structure 6; the first notch structure 1 and the second notch structure 2 are connected to form a first cavity structure; the two first connections between the first notch structure 1 and the second notch structure 2 are connected through the first supporting structure 4, and the first cavity structure is divided into a first cavity 7 and a second cavity 8; the first connection and the third notch structure 3 are connected through the connecting structure 5; the third notch structure 3 is connected to the first notch structure 1 to form a second connection; the connecting structure 5, the third notch structure 3 and the first notch structure 1 form a second cavity structure; the connecting structure 5 and the second connection are connected through the second supporting structure 6, and the second cavity structure is divided into a third cavity 9 and a fourth cavity 10.

[0072] The first notch structure 1, the second notch structure 2, the first support structure 4, the connection structure 5, the third notch structure 3 and the second support structure 6 are integrally formed. The first cavity 7, the second cavity 8, the third cavity 9 and the fourth cavity 10 are formed by continuous rolling of a steel strip.

[0073] The first recess structure 1 includes a first support arm 101, a first bottom wall 102 and a second support arm 103 which are connected to each other; one side of the first support arm 101 and one side of the second support arm 103 are connected to each other through the first bottom wall 102 to form a recess structure; the other side of the first support arm 101 and the other side of the second support arm 103 are connected to each other through the first support structure 4; the first support arm 101, the first bottom wall 102, the second support arm 103 and the first support structure 4 form a first cavity 7. The second recess structure 2 includes a connected third support arm 201, a top wall 202 and a fourth support arm 203; one side of the third support arm 201 and one side of the fourth support arm 203 are connected through the top wall 202 to form a recess structure; the other side of the third support arm 201 is connected to the second support arm 103, and the other side of the fourth support arm 203 is connected to the first support arm 101; the third support arm 201, the top wall 202, the fourth support arm 203 and the first support structure 4 form a second cavity 8; one side of the connecting structure 5 is connected to the fourth support arm 203, and the other side of the connecting structure 5 is connected to the third recess structure 3.

[0074] The third recess structure 3 includes a fifth support arm 301, a second bottom wall 302, and a sixth support arm 303; one side of the fifth support arm 301 and one side of the sixth support arm 303 are connected through the second bottom wall 302; the other side of the fifth support arm 301 is connected to the connection structure 5, and the other side of the sixth support arm 303 is connected to the first support arm 101. One side of the second support structure 6 is connected to the connection structure 5, and the other side of the second support structure 6 is connected to the sixth support arm 303; the connection structure 5, the fifth support arm 301, the second bottom wall 302, the sixth support arm 303, and the second support structure 6 form a third cavity 9; the connection structure 5, the second support structure 6, and the first support arm 101 form a fourth cavity 10.

[0075] The second supporting structure 6 is connected to the connecting structure 5 via an angle structure 11 .

[0076] The first support structure 4, the first support arm 101, the first bottom wall 102, the second support arm 103, the third support arm 201, the top wall 202, the fourth support arm 203, the connecting structure 5, the fifth support arm 301, the second bottom wall 302, the sixth support arm 303 and the second support structure 6 are integrally formed and connected in sequence. The first support structure 4 is connected to the third support arm 201 via an angle structure 11.

[0077] The first support structure 4 is welded to the third support arm 201 through the angle structure 11 to form a first welding point 13; the fourth support arm 203 is welded to the first support arm 101 to form a second welding point 14; the sixth support arm 303 is welded to the first support arm 101 to form a third welding point 15; the second support structure 6 is welded to the connection structure 5 through the angle structure 11 to form a fourth welding point 16. The welding joint length of the first welding point 13, the second welding point 14, the third welding point 15 and the fourth welding point 16 is less than 10t, where t is the thickness of the material plate for preparing the roller-pressed frame beam, which is the thickness of the steel strip in this embodiment.

[0078] The radius of the angle structure 11 is greater than or equal to 2t, where t is the thickness of the material plate used to prepare the roll-pressed frame beam, which is the thickness of the steel strip in this embodiment.

[0079] The structure of this embodiment can be made of high-strength steel strip with a material strength higher than 500MPa. After progressive roll forming and multiple laser welding, a special-shaped rolled steel profile with four closed cavities is formed. The profile is used for the frame beam of the battery pack of new energy vehicles. The profile is provided with four cavities, two cavities are provided on the left side, one of which is a polygonal cavity (i.e., the third cavity 9), and the other is a triangular cavity (i.e., the fourth cavity 10), and two cavities are provided on the right side, the upper part is a rectangular cavity (i.e., the second cavity 8), and the lower part is a rectangular cavity (i.e., the first cavity 7), and the two cavities share a supporting wall.

[0080] The specific preparation process is as follows:

[0081] First, by rolling and bending the two ends of the steel strip multiple times at the same time, a polygonal cavity on the left and a rectangular cavity on the other side are formed. Both cavities use a small flange structure that has been pre-rolled and bent to fit the steel strip and then are closed by laser welding to form a cavity. Secondly, the steel strip connected between the polygonal cavity and the rectangular cavity is roll-bent, and the bent steel strip is fitted with a vertical wall of the rectangular cavity, and laser welded to form another rectangular cavity. Thirdly, roll-bending is performed to fit the second structural wall of the polygonal cavity with a vertical wall of the rectangular cavity, and laser welding is performed to form a triangular cavity. The setting of the first supporting wall of the polygonal cavity can improve the structural stability.

[0082] The structural walls are connected by bends. To ensure that the high-strength steel material has a certain plasticity, the bend radius is ≥ twice the material thickness t. To ensure that there is no gap at the closed welding joint and that all joints can be made by laser welding, the length of the joint position is set to <10t, where t is the material thickness. In this embodiment, the length L is 3mm, which can be the optimal length.

[0083] Embodiment 2:

[0084] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the second support arm 103, the first bottom wall 102, the first support arm 101, the first support structure 4, the third support arm 201, the top wall 202, the fourth support arm 203, the connecting structure 5, the fifth support arm 301, the second bottom wall 302, the sixth support arm 303 and the second support structure 6 are integrally formed in sequence. The second support arm 103 is connected to the first support structure 4 via a curved structure 11.

[0085] The second support arm 203 is welded to the first support structure 4 through the angle structure 11 to form a first welding point 13; the fourth support arm 203 is welded to the first support arm 101 to form a second welding point 14; the sixth support arm 303 is welded to the first support arm 101 to form a third welding point 15; the second support structure 6 is welded to the connecting structure 5 through the angle structure 11 to form a fourth welding point 16.

[0086] Embodiment 3:

[0087] like Figure 4 and Figure 5 As shown, the difference between this embodiment and embodiment 1 is that the sixth support arm 303 is connected to the first support arm 101 through a flat wall structure 12, and the second support structure 6 is connected to the flat wall structure 12. The flat wall structure 12 and the first support arm 101 are welded to form a third welding point 15.

[0088] Embodiment 4:

[0089] like Figure 6 As shown, the difference between this embodiment and embodiment 2 is that the sixth support arm 303 is connected to the first support arm 101 through a flat wall structure 12, and the second support structure 6 is connected to the flat wall structure 12. The flat wall structure 12 and the first support arm 101 are welded to form a third welding point 15.

[0090] Embodiment 5:

[0091] like Figure 7 As shown, the difference between this embodiment and embodiment 3 is that a sealing step 17 is provided on the first bottom wall 102 .

[0092] Embodiment 6:

[0093] like Figure 8As shown, the difference between this embodiment and embodiment 3 is that the connecting structure 5 includes a first connecting wall 501 and a second connecting wall 502; one side of the connecting wall 501 is connected to the fourth support arm 203, and the other side of the connecting wall 501 is connected to the second support structure 6; one side of the second connecting wall 502 is connected to the first connecting wall 501, and the other side of the second connecting wall 502 is connected to the fifth support arm 301.

[0094] A first bending connection structure 18 is provided on the first connecting wall 501, and one side of the second connecting wall 502 is connected to the first bending connection structure 18; a second bending connection structure 19 is provided on the third supporting arm 201, and one side of the second supporting arm 103 is connected to the second bending connection structure 19.

[0095] Embodiment 7:

[0096] like Fig. 9 As shown, the difference between this embodiment and embodiment 3 is that the connection structure 5 includes a first connection wall 501 and a second connection wall 502; one side of the connection wall 501 is connected to the fourth support arm 203, and the other side of the connection wall 501 is connected to the second support structure 6; one side of the second connection wall 502 is connected to the second support structure 6, and the other side of the second connection wall 502 is connected to the fifth support arm 301. The second connection wall 502 is connected to the second support structure 6 through an angle structure 11.

[0097] Embodiment 8:

[0098] like Fig.10 As shown, the difference between this embodiment and embodiment 4 is that the connection structure 5 includes a first connection wall 501 and a second connection wall 502; one side of the connection wall 501 is connected to the fourth support arm 203, and the other side of the connection wall 501 is connected to the second support structure 6; one side of the second connection wall 502 is connected to the second support structure 6, and the other side of the second connection wall 502 is connected to the fifth support arm 301. The second connection wall 502 is connected to the second support structure 6 through an angle structure 11.

[0099] The roller-pressed frame beam of the utility model can improve the collision strength and overall rigidity of the frame, and at the same time has better structural stability and torsional strength.

[0100] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0101] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A roller-pressed frame beam, characterized in that: include: A first notch structure (1), a second notch structure (2), a first supporting structure (4), a connecting structure (5), a third notch structure (3) and a second supporting structure (6); The first notch structure (1) and the second notch structure (2) are connected to form a first cavity structure; The two first connection points of the first notch structure (1) and the second notch structure (2) are connected via the first support structure (4), so that the first cavity structure is divided into a first cavity (7) and a second cavity (8); The first connection point and the third recess structure (3) are connected via the connection structure (5); the third recess structure (3) is connected to the first recess structure (1) to form a second connection point; the connection structure (5), the third recess structure (3) and the first recess structure (1) form a second cavity structure; the connection structure (5) and the second connection point are connected via the second supporting structure (6) to divide the second cavity structure into a third cavity (9) and a fourth cavity (10).

2. The roller-pressed frame beam according to claim 1, characterized in that: The first notch structure (1), the second notch structure (2), the first supporting structure (4), the connecting structure (5), the third notch structure (3) and the second supporting structure (6) are integrally formed.

3. The roller-pressed frame beam according to claim 2, characterized in that: The first cavity (7), the second cavity (8), the third cavity (9) and the fourth cavity (10) are formed by continuous rolling of a steel strip.

4. The roller-pressed frame beam according to claim 1, characterized in that: The first recess structure (1) comprises a first supporting arm (101), a first bottom wall (102) and a second supporting arm (103) which are connected to each other; One side edge of the first support arm (101) and one side edge of the second support arm (103) are connected via the first bottom wall (102) to form a notch structure; the other side edge of the first support arm (101) and the other side edge of the second support arm (103) are connected via the first support structure (4); The first supporting arm (101), the first bottom wall (102), the second supporting arm (103) and the first supporting structure (4) form the first cavity (7).

5. The roller-pressed frame beam according to claim 4, characterized in that: The second recess structure (2) comprises a third supporting arm (201), a top wall (202) and a fourth supporting arm (203) which are connected; One side edge of the third support arm (201) and one side edge of the fourth support arm (203) are connected via the top wall (202) to form a notch structure; the other side edge of the third support arm (201) is connected to the second support arm (103), and the other side edge of the fourth support arm (203) is connected to the first support arm (101); The third support arm (201), the top wall (202), the fourth support arm (203) and the first support structure (4) form the second cavity (8); One side edge of the connection structure (5) is connected to the fourth support arm (203), and the other side edge of the connection structure (5) is connected to the third recess structure (3).

6. The roller-pressed frame beam according to claim 5, characterized in that: The third recess structure (3) comprises a fifth supporting arm (301), a second bottom wall (302) and a sixth supporting arm (303); One side edge of the fifth support arm (301) and one side edge of the sixth support arm (303) are connected via the second bottom wall (302); the other side edge of the fifth support arm (301) is connected to the connection structure (5), and the other side edge of the sixth support arm (303) is connected to the first support arm (101).

7. The roller-pressed frame beam according to claim 6, characterized in that: One side of the second supporting structure (6) is connected to the connecting structure (5), and the other side of the second supporting structure (6) is connected to the sixth supporting arm (303); The connecting structure (5), the fifth supporting arm (301), the second bottom wall (302), the sixth supporting arm (303) and the second supporting structure (6) form the third cavity (9); The connecting structure (5), the second supporting structure (6) and the first supporting arm (101) form the fourth cavity (10).

8. The roller-pressed frame beam according to claim 7, characterized in that: The first support structure (4) is connected to the third support arm (201) via a bent angle structure (11), or the second support arm (103) is connected to the first support structure (4) via a bent angle structure (11); The second supporting structure (6) is connected to the connecting structure (5) via a bent angle structure (11).

9. The roller-pressed frame beam according to claim 7, characterized in that: The sixth support arm (303) is connected to the first support arm (101) via a flat wall structure (12), and the second support structure (6) is connected to the flat wall structure (12).

10. The roller-pressed frame beam according to claim 7, characterized in that: The first supporting structure (4), the first supporting arm (101), the first bottom wall (102), the second supporting arm (103), the third supporting arm (201), the top wall (202), the fourth supporting arm (203), the connecting structure (5), the fifth supporting arm (301), the second bottom wall (302), the sixth supporting arm (303) and the second supporting structure (6) are integrally formed and connected in sequence; Alternatively, the second support arm (103), the first bottom wall (102), the first support arm (101), the first support structure (4), the third support arm (201), the top wall (202), the fourth support arm (203), the connecting structure (5), the fifth support arm (301), the second bottom wall (302), the sixth support arm (303) and the second support structure (6) are integrally formed in sequence.

11. The roller-pressed frame beam according to claim 8, characterized in that: The first support structure (4) is welded to the third support arm (201) through a bend structure (11) to form a first welding point (13), or the second support arm (103) is welded to the first support structure (4) through a bend structure (11) to form a first welding point (13); The fourth support arm (203) and the first support arm (101) are welded to form a second welding point (14); the sixth support arm (303) and the first support arm (101) are welded to form a third welding point (15); and the second support structure (6) is welded to the connection structure (5) via the angle structure (11) to form a fourth welding point (16).

12. The roller-pressed frame beam according to claim 4, characterized in that: A sealing step (17) is provided on the first bottom wall (102).

13. The roller-pressed frame beam according to claim 7, characterized in that: The connection structure (5) comprises a first connection wall (501) and a second connection wall (502); One side of the connecting wall (501) is connected to the fourth supporting arm (203), and the other side of the connecting wall (501) is connected to the second supporting structure (6); One side edge of the second connecting wall (502) is connected to the first connecting wall (501) or the second supporting structure (6), and the other side edge of the second connecting wall (502) is connected to the fifth supporting arm (301).

14. The roller-pressed frame beam according to claim 13, characterized in that: When one side edge of the second connecting wall (502) is connected to the first connecting wall (501); A first bending connection structure (18) is provided on the first connecting wall (501), and a side edge of the second connecting wall (502) is connected to the first bending connection structure (18); The third support arm (201) is provided with a second bending connection structure (19), and one side edge of the second support arm (103) is connected to the second bending connection structure (19).

15. The roller-pressed frame beam according to claim 13, characterized in that: When one side edge of the second connecting wall (502) is connected to the second supporting structure (6), the second connecting wall (502) is connected to the second supporting structure (6) via a curved angle structure (11).

Images