High-performance hollow thin-wall aluminum profile
By setting reinforcing cavities and reinforcing ribs inside the aluminum profile, the problems of inaccurate butt joints and welding stress concentration in hollow thin-walled aluminum profiles are solved, achieving high-precision, high-efficiency butt joints, enhanced stability, and lightweighting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI RUNJIANG POWER TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-17
AI Technical Summary
The existing hollow thin-walled aluminum profiles lack positioning structures, which affects the accuracy and efficiency of the connection. The weld joint bears all the stress, affecting the stability of the connection.
Multiple reinforcing cavities and reinforcing ribs are set in the aluminum profile body. The reinforcing ribs are inserted into the reinforcing cavities to achieve positioning, share stress, and form a multi-cavity structure to enhance the joint strength and reduce weight.
It improves the accuracy and efficiency of the connection, enhances the stability and overall strength of the connection, and reduces the weight of the aluminum profile.
Smart Images

Figure CN224135665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hollow thin-walled aluminum profiles, specifically a high-performance hollow thin-walled aluminum profile. Background Technology
[0002] Hollow thin-walled aluminum profiles are lightweight, high-strength materials manufactured through extrusion molding. They feature a hollow cross-section and thin walls (typically 0.5-3mm), combining the corrosion resistance, ease of processing, and recyclability of aluminum alloys. This structural design significantly reduces weight while maintaining load-bearing strength, making it widely used in transportation (new energy vehicles, rail transit), building curtain walls, machinery, and electronic heat dissipation. It is particularly suitable for applications requiring lightweight construction and high structural stability. Its hollow cross-section can also integrate wiring and insulation functions, making it a preferred energy-efficient engineering material in modern industry.
[0003] Chinese Patent Publication No. CN218095394U discloses a high-performance hollow ultra-thin-walled aluminum profile, comprising an inner core, reinforcing ribs, an outer shell, a first cavity, a second cavity, and a third cavity. The outer surface of the inner core is connected to the inner surface of the outer shell via the reinforcing ribs. The first cavity, second cavity, and third cavity are symmetrically positioned between the outer shell and the inner core. This invention provides excellent cushioning under external force, preventing direct deformation and breakage, thus effectively protecting products using this aluminum profile. It not only possesses good compressive strength but also excellent thermal conductivity and heat dissipation, facilitating market promotion and application.
[0004] Existing hollow thin-walled aluminum profiles lack positioning structures, which not only affects the docking accuracy but also the docking efficiency. Furthermore, the docking joints are usually connected by welding, and all the stress on the hollow thin-walled aluminum profiles is applied to the weld joint, affecting the docking stability. To address this, we propose a high-performance hollow thin-walled aluminum profile. Utility Model Content
[0005] The purpose of this utility model is to provide a high-performance hollow thin-walled aluminum profile to solve the problems mentioned in the background art, such as the lack of positioning structure in existing hollow thin-walled aluminum profiles, which not only affects the docking accuracy but also the docking efficiency. Furthermore, the docking joint is usually connected by welding, and all the stress on the hollow thin-walled aluminum profile is applied to the weld joint, affecting the docking stability.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-performance hollow thin-walled aluminum profile, comprising:
[0007] The aluminum profile body has a seventh reinforcing cavity inside, symmetrical third reinforcing cavities on both sides of the seventh reinforcing cavity, a fourth reinforcing cavity at the rear end of the third reinforcing cavity, a fifth reinforcing cavity at the rear end of the fourth reinforcing cavity, a second reinforcing cavity at the front end of the third reinforcing cavity, a first reinforcing cavity at the front end of the second reinforcing cavity, and reinforcing ribs integrally fixedly installed at both ends of the inner wall of the seventh reinforcing cavity. A sixth reinforcing cavity is formed inside the reinforcing ribs.
[0008] As a preferred embodiment of the high-performance hollow thin-walled aluminum profile of this utility model, the fifth reinforcing cavity has a triangular shape and is symmetrical to the first reinforcing cavity about the horizontal centerline of the aluminum profile body.
[0009] As a preferred embodiment of the high-performance hollow thin-walled aluminum profile of this utility model, the fourth reinforcing cavity has a trapezoidal structure, and the fourth reinforcing cavity and the second reinforcing cavity are symmetrical about the horizontal centerline of the aluminum profile body.
[0010] As a preferred embodiment of the high-performance hollow thin-walled aluminum profile of this utility model, the third reinforcing cavity has a trapezoidal structure, and the shape and size of the third reinforcing cavity match the shape and size of the reinforcing rib.
[0011] As a preferred embodiment of the high-performance hollow thin-walled aluminum profile of this utility model, the sixth reinforcing cavity has a triangular shape.
[0012] Compared with the prior art, this utility model provides a high-performance hollow thin-walled aluminum profile, which has the following beneficial effects:
[0013] This utility model provides a third reinforcing cavity and a reinforcing rib that matches the shape and size of the third reinforcing cavity inside the aluminum profile body. When the two aluminum profile bodies are joined, the reinforcing rib can be inserted into the third reinforcing cavity to play a positioning role. On the one hand, it can make the joining of the two aluminum profile bodies more precise, and on the other hand, the third reinforcing cavity and the reinforcing rib will share the stress at the joint and strengthen the joint strength.
[0014] This utility model forms a multi-cavity structure by setting up a first reinforcing cavity, a second reinforcing cavity, a third reinforcing cavity, a fourth reinforcing cavity, and a fifth reinforcing cavity, which not only reduces the overall weight of the aluminum profile body, but also enhances the overall strength of the aluminum profile body. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the new reinforcing rib structure in this utility model;
[0017] Figure 3This is a top view of the structure of this utility model.
[0018] In the diagram: 1. Aluminum profile body; 2. First reinforcing cavity; 3. Second reinforcing cavity; 4. Third reinforcing cavity; 5. Fourth reinforcing cavity; 6. Fifth reinforcing cavity; 7. Sixth reinforcing cavity; 8. Reinforcing rib; 9. Seventh reinforcing cavity. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-3 A high-performance hollow thin-walled aluminum profile includes an aluminum profile body 1. The aluminum profile body 1 has a seventh reinforcing cavity 9 inside. The seventh reinforcing cavity 9 has symmetrical third reinforcing cavities 4 on both sides. The rear end of the third reinforcing cavity 4 has a fourth reinforcing cavity 5. The rear end of the fourth reinforcing cavity 5 has a fifth reinforcing cavity 6. The front end of the third reinforcing cavity 4 has a second reinforcing cavity 3. The front end of the second reinforcing cavity 3 has a first reinforcing cavity 2. The inner wall of the seventh reinforcing cavity 9 has reinforcing ribs 8 integrally fixed at both ends. The reinforcing ribs 8 have a sixth reinforcing cavity 7 inside.
[0021] In this implementation scheme: by opening a third reinforcing cavity 4 and a reinforcing rib 8 that matches the shape and size of the third reinforcing cavity 4 inside the aluminum profile body 1, the reinforcing rib 8 can be inserted into the third reinforcing cavity 4 during docking to play a positioning role. On the one hand, it can make the docking of the two aluminum profile bodies 1 more precise, and on the other hand, the third reinforcing cavity 4 and the reinforcing rib 8 will share the stress at the docking point and strengthen the docking strength. Furthermore, by setting multiple reinforcing cavities such as the first reinforcing cavity 2, the second reinforcing cavity 3, the third reinforcing cavity 4, the fourth reinforcing cavity 5, and the fifth reinforcing cavity 6, a multi-cavity structure is formed, which can not only reduce the overall weight of the aluminum profile body 1, but also enhance the overall strength of the aluminum profile body 1.
[0022] Furthermore:
[0023] In an optional embodiment, the fifth reinforcing cavity 6 has a triangular shape and is symmetrical to the first reinforcing cavity 2 about the horizontal centerline of the aluminum profile body 1.
[0024] In this implementation scheme: the fifth reinforcing cavity 6 and the first reinforcing cavity 2 of the triangle have good stability and enhance the overall strength of the aluminum profile body 1.
[0025] Furthermore:
[0026] In an optional embodiment, the fourth reinforcing cavity 5 has a trapezoidal structure, and the fourth reinforcing cavity 5 and the second reinforcing cavity 3 are symmetrical about the horizontal centerline of the aluminum profile body 1.
[0027] In this embodiment, the trapezoidal fourth reinforcing cavity 5 and the second reinforcing cavity 3 have good stability and enhance the overall strength of the aluminum profile body 1.
[0028] Furthermore:
[0029] In an optional embodiment, the third reinforcing cavity 4 has a trapezoidal structure, and the shape and size of the third reinforcing cavity 4 match the shape and size of the reinforcing rib 8.
[0030] In this implementation scheme: the trapezoidal third reinforcing cavity 4 has good stability and enhances the overall strength of the aluminum profile body 1. The matching third reinforcing cavity 4 and reinforcing rib 8 greatly improve the docking accuracy and efficiency between the two aluminum profile bodies 1.
[0031] Furthermore:
[0032] In an optional embodiment, the sixth reinforcing cavity 7 has a triangular shape.
[0033] In this implementation scheme: the sixth reinforcing cavity 7 of the triangle has good stability, and the weight of the reinforcing rib 8 is reduced without affecting the lightness of the reinforcing rib 8.
[0034] Working principle: When using this high-performance hollow thin-walled aluminum profile, firstly, when two aluminum profile bodies 1 need to be joined together, a portion of the outer shell of the aluminum profile body 1 is cut off, leaving the reinforcing rib 8 exposed. Then, the exposed reinforcing rib 8 is inserted into the sixth reinforcing cavity 7 inside the other aluminum profile body 1 being joined. Subsequently, the two joined aluminum profile bodies 1 are welded together. Secondly, the first reinforcing cavity 2, the second reinforcing cavity 3, the third reinforcing cavity 4, the fourth reinforcing cavity 5, the fifth reinforcing cavity 6, the sixth reinforcing cavity 7, and the seventh reinforcing cavity 9 form a multi-cavity structure inside the aluminum profile body 1, which not only reduces the overall weight of the aluminum profile body 1 but also strengthens its strength. This is the working principle of this high-performance hollow thin-walled aluminum profile.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high performance hollow thin walled aluminium section, characterised in that, include: An aluminum profile body (1) has a seventh reinforcing cavity (9) inside. Symmetrical third reinforcing cavities (4) are provided on both sides of the seventh reinforcing cavity (9). A fourth reinforcing cavity (5) is provided at the rear end of the third reinforcing cavity (4). A fifth reinforcing cavity (6) is provided at the rear end of the fourth reinforcing cavity (5). A second reinforcing cavity (3) is provided at the front end of the third reinforcing cavity (4). A first reinforcing cavity (2) is provided at the front end of the second reinforcing cavity (3). A reinforcing rib (8) is integrally fixedly installed on the front and rear ends of the inner wall of the seventh reinforcing cavity (9). A sixth reinforcing cavity (7) is provided inside the reinforcing rib (8).
2. The high-performance hollow thin-walled aluminum profile according to claim 1, characterized in that The fifth reinforcing cavity (6) has a triangular shape and is symmetrical to the first reinforcing cavity (2) about the horizontal centerline of the aluminum profile body (1).
3. The high-performance hollow thin-walled aluminum profile according to claim 1, characterized in that, The fourth reinforcing cavity (5) has a trapezoidal structure, and the fourth reinforcing cavity (5) and the second reinforcing cavity (3) are symmetrical about the horizontal centerline of the aluminum profile body (1).
4. The high-performance hollow thin-walled aluminum profile according to claim 1, characterized in that The third reinforcing cavity (4) has a trapezoidal structure, and the shape and size of the third reinforcing cavity (4) match the shape and size of the reinforcing rib (8).
5. The high-performance hollow thin-walled aluminum profile according to claim 1, characterized in that The sixth reinforcing cavity (7) has a triangular shape.
Citation Information
Patent Citations
High-performance hollow ultrathin-wall aluminum profile
CN218095394U