A two-piece composite multi-cavity profile

Abstract

The utility model discloses a two piece body compound multicavity sectional material. A two piece body compound multicavity sectional material, including embedding piece body and outer frame piece body, outer frame piece body is the cavity that first sheet material was bent, and the both ends of first sheet material are adjacently arranged, embedding piece body is the bending piece that second sheet material was bent, and the bending piece includes at least one separating portion, and the both ends of separating portion are connected with first connecting portion and second connecting portion respectively, when separating portion is provided with two or more, and adjacent separating portion is connected through first connecting portion or second connecting portion, and separating portion separates cavity and forms at least two transverse arrangement's sub cavity, and first connecting portion and the both ends of second sheet material are connected through same welding seam and are welded, and second connecting portion and the inner wall of cavity are connected and are welded. The utility model realizes the quick processing forming of multiple cavity structure, and also can realize the number of controlling exposed surface joint.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, specifically to a multi-cavity profile structure. Background Technology

[0002] Multi-cavity profiles have many applications in areas such as automotive crash beams and automotive battery box frames.

[0003] Traditional multi-cavity profiles are often formed using roll forming technology, such as the double central support leg tube beam disclosed in CN212685470U. In this patent, the hollow beam is formed by continuous roll forming of a single metal sheet, which involves many and complex forming steps and high mold costs.

[0004] Due to the cumbersome nature of continuous roll forming of a single metal sheet, there are also multi-cavity profiles that are assembled in a split manner. For example, CN116951294A discloses a high-strength lightweight roll forming profile, processing method and application. In this patent, the multi-cavity profile is combined by welding together the enclosure and the insert. This requires more welding positions and more exposed surface seams, which affects the surface flatness, airtightness and welding of the components. In addition, it cannot manufacture profiles with 4 or more cavities. Utility Model Content

[0005] This utility model provides a two-piece composite multi-cavity profile to solve at least one of the above-mentioned technical problems.

[0006] A two-piece composite multi-cavity profile, characterized in that it includes an inner embedded piece and an outer frame piece disposed inside and outside;

[0007] The outer frame is a cavity formed by bending the first sheet material, with the two ends of the first sheet material being arranged adjacent to each other;

[0008] The embedded sheet is a bent part formed by bending the second sheet material. The bent part includes at least one partition, and the two ends of the partition are respectively connected to a first connecting part and a second connecting part.

[0009] When there are two or more partitions, adjacent partitions are connected by a first connecting part or a second connecting part;

[0010] The partition portion forms at least two transversely arranged sub-cavities between the cavity body. The first connecting portion is welded to both ends of the first sheet metal through the same weld seam, and the second connecting portion is welded to the inner wall of the cavity body.

[0011] This invention optimizes the structure of multi-cavity profiles, facilitating rapid processing and forming of multi-cavity structures. Simultaneously, by adjusting the welding positions, it ensures the proper assembly of the inner and outer frame pieces. Furthermore, it allows for control over the number of seams on the exposed surface, with seams only located at the joints of the two ends of the second sheet. This device, by reducing the number of seams, ensures the flatness of the outer surface.

[0012] More preferably, the number of sub-cavities is one more than the number of partitions.

[0013] More preferably, the angle between the partition and the first connecting part is 90°-135°;

[0014] The angle between the partition and the second connecting part is 90°-135°.

[0015] More preferably, the first connecting portion and the second connecting portion are parallel to each other;

[0016] The areas on the outer frame sheet used to connect the first connecting part and the second connecting part are parallel to each other.

[0017] As a preferred embodiment, the bending member is provided with one of the partition portions;

[0018] The partition divides the cavity into two cavity structures.

[0019] More preferably, the first connecting portion and the second connecting portion are located on the same side or different sides in the thickness direction of the partition portion.

[0020] As another preferred embodiment, the bending member is a groove-shaped structure with an opening, and the opening end of the groove-shaped structure is welded to the sidewall of the welding point on both ends of the outer frame sheet opposite to the first sheet.

[0021] As another preferred embodiment, the bending component is a rectangular frame formed by welding the two ends of the second sheet together, and the welded joints of the first connecting part and the two ends of the first sheet are adjacent to and staggered with the welded joints of the two ends of the second sheet.

[0022] Avoid mutual interference.

[0023] As another preferred embodiment, the bending element is bent in a wavy shape;

[0024] The bending member includes at least two partitions, with adjacent partitions being parallel to each other or having a figure-eight-shaped outward expansion structure.

[0025] As another preferred embodiment, the cavity is provided with an outwardly protruding part, and the partition part divides the area where the outwardly protruding part is located into a sub-cavity called a deformable cavity, and the height of the deformable cavity is different from the height of the other sub-cavities.

[0026] As another preferred embodiment, the outer frame sheet includes a first bent portion, a second bent portion, a third bent portion, a fourth bent portion, and a fifth bent portion connected in sequence.

[0027] Both the first bend and the fifth bend are inclined, and the first bend and the fifth bend are arranged adjacent to each other;

[0028] The first connecting portion is connected to the first bending portion and the fifth bending portion at their adjacent locations.

[0029] Beneficial effects:

[0030] This utility model effectively improves the strength, rigidity and bending resistance of the profile. For example, when used as a battery box frame profile for new energy vehicles, it can improve the battery's collision performance. When used as a car anti-collision beam profile, it can also improve the collision performance.

[0031] This invention optimizes the structure of multi-cavity profiles, facilitating rapid processing and molding of multi-cavity structures.

[0032] This invention, by adjusting the welding position, facilitates the assembly of the inner and outer frame pieces and allows for control over the number of seams on the exposed surface. These seams are only located at the joints of the two ends of the second sheet. By reducing the number of seams, the flatness of the outer surface is ensured.

[0033] This invention can also be applied to the molding of four or more sub-cavities. Attached Figure Description

[0034] Figure 1 This is a cross-sectional view of a specific embodiment 1 of the present utility model;

[0035] Figure 2 This is a cross-sectional view of a specific embodiment 3 of the present utility model;

[0036] Figure 3 This is a cross-sectional view of a specific embodiment 4 of the present invention;

[0037] Figure 4 This is a cross-sectional view of a specific embodiment 5 of the present utility model;

[0038] Figure 5 A cross-sectional view of a specific embodiment 6 of this utility model where two partitions are provided;

[0039] Figure 6Another cross-sectional view showing that there are two partitions in specific embodiment 6 of this utility model;

[0040] Figure 7 A cross-sectional view of a specific embodiment 6 of this utility model in which three partitions are provided;

[0041] Figure 8 A cross-sectional view of a specific embodiment 6 of this utility model in which four partitions are provided;

[0042] Figure 9 This is a cross-sectional view of a specific embodiment 7 of the present invention;

[0043] Figure 10 This is another cross-sectional view of specific embodiment 7 of this utility model;

[0044] Figure 11 This is another cross-sectional view of specific embodiment 7 of this utility model;

[0045] Figure 12 This is a cross-sectional view of a specific embodiment 8 of the present utility model.

[0046] In the figure: 1 is the outer frame piece, 2 is the inner piece, 11 is the outward protrusion, 21 is the first connecting part, 22 is the second connecting part, and 23 is the partition. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Please see Figures 1 to 12As shown in Specific Embodiment 1, a two-piece composite multi-cavity profile includes an inner embedded piece 2 and an outer frame piece 1 disposed inside and outside; the outer frame piece 1 is a cavity formed by bending a first sheet material, with the two ends of the first sheet material being adjacent to each other; the inner embedded piece 2 is a bent part formed by bending a second sheet material, the bent part including at least one partition 23, the two ends of the partition 23 being respectively connected to a first connecting part 21 and a second connecting part 22; when there are two or more partition parts 23, adjacent partition parts 23 are connected through the first connecting part 21 or the second connecting part 22, the partition parts 23 divide the cavity to form at least two transversely arranged sub-cavities, the first connecting part 21 is welded to the two ends of the first sheet material through the same weld, and the second connecting part 22 is welded to the inner wall of the cavity. This invention optimizes the structure of the multi-cavity profile, facilitating rapid processing and molding of the multi-cavity structure. Simultaneously, by adjusting the welding positions, it ensures the proper combination of the inner insert 2 and the outer frame 1, and also controls the number of seams on the exposed surface, with seams only located at the joints of the two ends of the second sheet. This device reduces the number of seams while maintaining the flatness of the outer surface. Adjacent first connecting parts 21 and second connecting parts 22 are welded to the opposite sides of the outer frame 1. The inner insert 2 serves as an internal reinforcement. The first connecting part is located inside the outer frame 1 and seals the gap between the two ends of the first sheet.

[0049] The gap between the two ends of the first plate is used to accommodate the weld seam of the first connecting part 21 welded to both ends of the first plate. The gap between the two ends of the first plate is no greater than 2 mm. Preferably, it is no greater than 1 mm.

[0050] The number of sub-cavities is one more than the number of partitions 23.

[0051] The angle between the partition 23 and the first connecting part 21 is 90°-135°; the angle between the partition 23 and the second connecting part 22 is 90°-135°.

[0052] The first connecting part 21 and the second connecting part 22 are parallel to each other; the areas on the outer frame 1 used to connect the first connecting part 21 and the second connecting part 22 are all parallel to each other.

[0053] A partition 23 is provided on the bent part; the partition 23 divides the cavity into two cavity structures.

[0054] See Figure 1 In specific embodiment 2, based on specific embodiment 1, the first connecting part 21 and the second connecting part 22 are located on the same side in the thickness direction of the partition part 23.

[0055] See Figure 2In specific embodiment 3, based on specific embodiment 1, the first connecting part 21 and the second connecting part 22 are located on different sides of the thickness direction of the partition part 23. The included angle α between the partition part 23 and the outer frame sheet 1 is 45°-90°.

[0056] See Figure 3 In specific embodiment 4, based on specific embodiment 1, the bent component is a groove-shaped structure with an opening. The open end of the groove-shaped structure is welded to the sidewalls of the welding points on both ends of the outer frame sheet 1, which are directly opposite the first sheet. The groove-shaped structure includes a second connecting part, a partition part, a first connecting part, a partition part, and a second connecting part connected in sequence. The included angle α between the partition part and the outer frame sheet 1 is 45°-135°.

[0057] See Figure 4 In specific embodiment 5, based on specific embodiment 1, the bent component is a rectangular frame formed by welding the two ends of the second sheet together. The welded joints of the first connecting part 21 and the two ends of the first sheet are adjacent to and staggered with the welded joints of the two ends of the second sheet to avoid mutual interference.

[0058] See Figures 5 to 8 In specific embodiment 6, based on specific embodiment 1, the bending component is wavy; the bending component includes at least two partitions 23, adjacent partitions 23 are parallel to each other or have a figure-eight shaped outward expansion structure. The included angle α between the partition and the outer frame 1 is 45°-90°. When there are two partitions, the number of sub-cavities is three. When there are three partitions, the number of sub-cavities is four. When there are four partitions, the number of sub-cavities is five. This device structure can greatly increase the number of sub-cavities.

[0059] See Figures 9 to 11 In specific embodiment 7, based on specific embodiment 1, the cavity is provided with an outwardly protruding part 11. The partition part 23 divides the area where the outwardly protruding part 11 is located into a sub-cavity called a deformation cavity 3. The height of the deformation cavity 3 is different from the height of the other sub-cavities. The cross-section of the deformation cavity is rectangular or polygonal.

[0060] See Figure 12 In specific embodiment 8, based on specific embodiment 1, the outer frame sheet includes a first bent portion, a second bent portion, a third bent portion, a fourth bent portion, and a fifth bent portion connected in sequence; the first bent portion and the fifth bent portion are both inclined and arranged adjacent to each other. The bent component has a dividing portion 23, with a first connecting portion 21 and a second connecting portion 22 connected to its two ends respectively. The first connecting portion is connected to the adjacent parts of the first bent portion and the fifth bent portion. The second connecting portion is connected to the third bent portion.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-ply composite multi-cavity profile, characterized in that, This includes embedded sheets and outer frame sheets, both internally and externally configured. The outer frame is a cavity formed by bending the first sheet material, with the two ends of the first sheet material being arranged adjacent to each other; The embedded sheet is a bent part formed by bending the second sheet material. The bent part includes at least one partition, and the two ends of the partition are respectively connected to a first connecting part and a second connecting part. When there are two or more partitions, adjacent partitions are connected by a first connecting part or a second connecting part; The partition portion forms at least two transversely arranged sub-cavities between the cavity body. The first connecting portion is welded to both ends of the first sheet metal through the same weld seam, and the second connecting portion is welded to the inner wall of the cavity body.

2. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The number of sub-cavities is one more than the number of partitions.

3. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The angle between the partition and the first connecting part is 90°-135°; The angle between the partition and the second connecting part is 90°-135°.

4. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The first connecting portion and the second connecting portion are parallel to each other; The areas on the outer frame sheet used to connect the first connecting part and the second connecting part are parallel to each other.

5. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The first connecting portion and the second connecting portion are located on the same side or different sides in the thickness direction of the partition portion.

6. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The bending component is a groove-shaped structure with an opening. The opening end of the groove-shaped structure is welded to the sidewall of the welding point on both ends of the outer frame sheet, which are directly opposite the first sheet.

7. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The bending component is a rectangular frame formed by welding the two ends of the second sheet together. The welded joints of the first connecting part and the two ends of the first sheet are adjacent to and staggered with the welded joints of the two ends of the second sheet.

8. The two-piece composite multi-cavity profile according to claim 1, characterized in that: The bent component is bent in a wavy shape; The bending member includes at least two partitions, with adjacent partitions being parallel to each other or having a figure-eight-shaped outward expansion structure.

9. A two-piece composite multi-cavity profile according to claim 1, characterized in that: The cavity is provided with an outwardly protruding part, and the partition part divides the area where the outwardly protruding part is located into a sub-cavity called a deformable cavity. The height of the deformable cavity is different from the height of the other sub-cavities.

10. A two-piece composite multi-cavity profile according to claim 1, characterized in that: The outer frame sheet includes a first bent portion, a second bent portion, a third bent portion, a fourth bent portion, and a fifth bent portion connected in sequence. Both the first bend and the fifth bend are inclined, and the first bend and the fifth bend are arranged adjacent to each other; The first connecting portion is connected to the first bending portion and the fifth bending portion at their adjacent locations.

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