Assembled metal aluminum frame
By using a snap-fit structure and a filling pad design, the problems of low assembly efficiency, unstable structure, and poor sealing of traditional metal aluminum frames are solved, achieving the effects of rapid installation, stable connection, and efficient heat dissipation.
Patent Information
- Application Number
- CN202521936607.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-09
AI Technical Summary
Traditional aluminum metal frames are inefficient to assemble, difficult to maintain, structurally unstable, poorly sealed, and inconvenient to install fans, which affects equipment performance and operating efficiency.
The fan frame and frame base are connected by a snap-fit structure. The beveled surfaces of the snap-fit blocks and slots enable quick installation and disassembly. The embedded frame and filler pad enhance the connection stability and sealing. The gap between the filler pad and the fan frame accommodates thermal expansion and contraction. The fan hole design ensures smooth airflow.
It enables quick and convenient assembly and disassembly, improves the structural stability and sealing of the equipment, and ensures normal operation and efficient heat dissipation.
Smart Images

Figure CN224679763U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal aluminum frame technology, specifically an assembled metal aluminum frame. Background Technology
[0002] Aluminum frames are widely used in various types of equipment, especially in devices involving fan cooling, where their structural design has a significant impact on equipment performance. However, traditional aluminum frames have revealed numerous problems during assembly and use. In terms of assembly methods, many aluminum frames are fixed by welding or screws. Welding is not only inefficient and environmentally polluting, but also difficult to disassemble for subsequent maintenance or component replacement. If a problem occurs at the weld, the entire aluminum frame may need to be scrapped. Screw fixing is cumbersome, requiring precise drilling and screwing, consuming significant time and manpower. Furthermore, the screws are prone to loosening, affecting the structural stability of the aluminum frame. For example, in the installation of cooling fan aluminum frames in some large equipment, the use of welding or screw fixing results in long installation times and difficult subsequent maintenance, severely impacting the production and operational efficiency of the equipment. Regarding structural stability, some aluminum frames lack effective limiting and fixing structures after assembly, making them prone to disintegration under external forces, affecting product quality. For example, during transportation, bumps and jostling can cause loosely assembled aluminum frames to separate components, leading to equipment damage. Sealing is also a common problem. Traditional aluminum frames often have gaps at the joints, which cannot effectively block dust, moisture, and other impurities, affecting the normal operation of internal components. For example, in some electronic devices with high environmental requirements, poor sealing of the aluminum frame can allow dust to enter, adhere to electronic components, affect heat dissipation and electrical performance, and even cause short circuits. Furthermore, traditional aluminum frames may not have adequately considered the optimization of fan installation and operation in their design. For example, an unreasonable fan hole design can lead to inconvenient fan installation or insufficient airflow and air pressure during operation, affecting heat dissipation. If the structural design of the fan mount does not match well with the aluminum fan frame, it will also affect the stability and performance of the entire device. Utility Model Content
[0003] The purpose of this invention is to provide an assembled aluminum metal frame to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an assembled metal aluminum frame, including a fan aluminum frame and an aluminum frame base, wherein the fan aluminum frame is assembled at the front end of the aluminum frame base, and a fan hole is provided on the side wall of the fan aluminum frame; an insert frame is assembled on the front side wall of the aluminum frame base, and the insert frame is inserted into the rear side of the fan aluminum frame; a filling pad is assembled on each of the four outer walls of the insert frame, and the filling pad is fitted against the inner wall of the fan aluminum frame; the fan aluminum frame and the aluminum frame base are fitted together, and the four corners where they fit together are engaged by a snap-fit structure; the snap-fit structure includes a snap-fit block installed at the four corners of the front side wall of the aluminum frame base and a snap-fit groove opened at the four corners of the rear side wall of the fan aluminum frame, and the snap-fit block is engaged in the snap-fit groove.
[0005] As a preferred embodiment of the assembled aluminum frame of this utility model, the outer walls on both sides of the card block are provided with inclined convex surfaces, and the inner walls on both sides of the card slot are provided with inclined concave surfaces, the inclined convex surfaces and the inclined concave surfaces cooperating with each other.
[0006] As a preferred embodiment of the assembled aluminum frame of this utility model, the card block has a filling cavity inside, an arched pad is installed inside the filling cavity, and rounded corners are provided on both sides of the end of the card block.
[0007] As a preferred embodiment of the assembled aluminum frame of this utility model, the filling cavity has an internal cavity, and an elastic element is provided inside the cavity.
[0008] As a preferred embodiment of the assembled aluminum frame of this utility model, a fan seat is provided inside the fan hole, and a fan assembly is assembled inside the fan seat.
[0009] As a preferred embodiment of the present invention, the side wall of the aluminum frame base is provided with an equipment cavity.
[0010] As a preferred embodiment of the assembled metal aluminum frame of this utility model, the filling pad and the fan aluminum frame are fitted with a gap.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the assembled metal aluminum frame has a reasonable structural design; In this case, the fan aluminum frame and fan base are connected by a snap-fit structure. The cooperation between the snap-fit blocks and slots makes the assembly process simple and quick. Installers only need to align the fan aluminum frame with the fan base and snap the snap-fit blocks into the slots to complete the initial fixation. Compared with welding or screw fixing, this greatly shortens the installation time. Moreover, it can be easily separated when disassembly, maintenance, or replacement of parts is required, improving maintenance efficiency. In the connection structure, the convex surfaces on both sides of the locking block mate with the concave surfaces on both sides of the locking slot, automatically aligning and fitting tightly during engagement, increasing the stability of the connection. The arched pad inside the locking block further enhances its structural strength, making it less prone to deformation under external forces. Simultaneously, the filler pad fills the gap between the mounting frame and the fan aluminum frame, reducing movement between components and making the entire aluminum frame structure more stable. During equipment operation, even under vibration or other external forces, the aluminum frame remains stable, effectively preventing problems such as disintegration and ensuring the normal operation of the equipment. Attached Figure Description
[0012] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the fan aluminum frame and fan base of this utility model; Figure 3 This is a schematic diagram of the snap-fit structure of this utility model; Figure 4 This is a schematic diagram of the filling pad of this utility model.
[0013] In the diagram: 1. Fan aluminum frame; 2. Aluminum frame base; 3. Fan hole; 4. Fan base; 5. Fan assembly; 6. Snap-fit structure; 7. Mounting frame; 8. Equipment cavity; 9. Filler pad; 10. Clip; 11. Slot; 12. Filler cavity; 13. Arched pad; 14. Rounded corner; 15. Sloping convex surface; 17. Sloping concave surface; 18. Cavity; 19. Elastic element. Detailed Implementation
[0014] 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.
[0015] Please see Figure 1-4 This utility model provides a technical solution: In this technical solution, an assembled metal aluminum frame includes a fan aluminum frame 1 and an aluminum frame base 2. The fan aluminum frame 1 is assembled at the front end of the aluminum frame base 2, and a fan hole 3 is opened on the side wall of the fan aluminum frame 1. An insert frame 7 is assembled on the front side wall of the aluminum frame base 2, and the insert frame 7 is inserted into the rear side of the fan aluminum frame 1. Each of the four outer walls of the insert frame 7 is equipped with a filling pad 9, and the filling pad 9 is fitted to the inner wall of the fan aluminum frame 1. The fan aluminum frame 1 and the aluminum frame base 2 are fitted together, and the four corners where they are fitted together are engaged by a snap-fit structure 6. The snap-fit structure 6 includes a snap-fit block 10 installed at the four corners of the front side wall of the aluminum frame base 2 and a snap-fit groove 11 opened at the four corners of the rear side wall of the fan aluminum frame 1, and the snap-fit block 10 is engaged in the snap-fit groove 11.
[0016] The fan aluminum frame 1 and the aluminum frame base 2 are assembled from the front, which facilitates the subsequent installation and maintenance of the fan and related components. The fan aluminum frame 1 is typically made of aluminum alloy, which is lightweight, high-strength, and has good thermal conductivity, effectively meeting heat dissipation requirements and ensuring structural stability. The fan hole 3 is provided for installing the fan assembly, allowing the airflow generated by the fan to pass smoothly through the aluminum frame, thus achieving heat dissipation for the equipment. The dimensions of the fan frame 1 can be determined according to the actual application scenario. For example, the length of a fan frame used for computer case heat dissipation may be 100-300mm, the width may be 80-250mm, and the thickness may be 1-3mm. The diameter of the fan hole 3 is generally compatible with common fan sizes, such as 80mm, 92mm, 120mm, etc. The specific size depends on the specifications of the selected fan. The fitting tolerance between the mounting end of the fan aluminum frame 1 and the corresponding mounting part of the aluminum frame base 2 can be controlled within ±0.1mm-±0.3mm to ensure good assembly effect and reduce shaking; The mounting frame 7 is assembled on the front side wall of the aluminum frame base 2. Its function is to further enhance the connection stability between the fan aluminum frame 1 and the aluminum frame base 2, and at the same time provide an installation base for the filler pad 9. The plug-in connection method makes the installation process relatively simple and can ensure the tightness of the connection between the two to a certain extent. The mounting frame 7 is generally also made of aluminum alloy, matching the material of the fan aluminum frame 1 and the aluminum frame base 2, to ensure the compatibility and stability of the overall structure. The dimensions of the mounting frame 7 should be adapted to the internal rear space of the fan aluminum frame 1. Its length and width are usually slightly smaller than the internal dimensions of the fan aluminum frame 1 to facilitate easy insertion. For example, if the internal rear length of the fan aluminum frame 1 is 280mm and the width is 230mm, the length of the mounting frame 7 can be designed to be 278mm and the width to be 228mm. The insertion depth is generally 10-20mm to ensure a firm connection. The filler pads 9 are installed on the four outer walls of the mounting frame 7. Their main function is to enhance the sealing of the connection between the fan aluminum frame 1 and the aluminum frame base 2, preventing dust, moisture, and other impurities from entering the equipment. They also provide some shock absorption, reducing the impact of vibrations generated during equipment operation on the aluminum frame structure. The filler pads 9 are typically made of materials with good elasticity and sealing properties, such as rubber or silicone. The thickness of the filler 9 is generally 2-5mm. If it is too thin, it may result in poor sealing performance; if it is too thick, it may affect installation or cause deformation of the aluminum frame structure. Its width can be determined according to the outer wall size of the mounting frame 7, generally 10-20mm, to ensure that it can fully cover the gap between the mounting frame 7 and the fan aluminum frame 1. The hardness requirement for the filler pad 9 is a Shore hardness between 40-60 HA, to ensure it effectively fills the gaps without being too hard and affecting the fit, or too soft and losing its supporting function. The filler pad 9 is installed on the mounting frame 7 using adhesive. The type of adhesive and the bonding process are specified. High-temperature resistant and aging-resistant silicone adhesive can be used. After evenly applying the adhesive to the outer wall of the mounting frame 7, accurately adhere and press the filler pad 9 firmly to ensure a secure bond. The snap-fit structure 6 is located at the four corners where the fan aluminum frame 1 and the aluminum frame base 2 fit together. This design makes the connection of the aluminum frame more stable and can effectively withstand external forces from all directions. The snap-fit blocks 10 are installed at the four corners of the front side wall of the aluminum frame base 2, and the snap-fit slots 11 are located at the four corners of the rear side wall of the fan aluminum frame 1. The cooperation between the two enables quick and convenient snap-fit connection. The snap-fit blocks 10 and the snap-fit slots 11 are generally made of the same or similar aluminum alloy material as the aluminum frame to ensure strength and compatibility. The length and width of the locking block 10 are generally between 10-20mm, and the thickness is 3-5mm, to ensure that it has sufficient strength to withstand external forces. The dimensions of the locking slot 11 should be adapted to the locking block 10, with its length and width slightly larger than the locking block 10 by 0.2-0.5mm, to facilitate locking operations, and its depth is generally 8-15mm, to ensure a firm locking.
[0017] In some technical solutions, the outer walls on both sides of the card block 10 are provided with inclined convex surfaces 15, and the inner walls on both sides of the card slot 11 are provided with inclined concave surfaces 16, with the inclined convex surfaces 15 and the inclined concave surfaces 16 cooperating with each other.
[0018] The design of the inclined convex surface 15 and the inclined concave surface 16 is to provide automatic guidance when the locking block 10 is inserted into the locking slot 11, making the locking process smoother and increasing the friction and stability after locking. When the locking block 10 is inserted into the locking slot 11, the inclined convex surface 15 slides along the inclined concave surface 16, which can automatically align and fit tightly, effectively preventing the locking block 10 from shaking in the locking slot 11; The inclination angles of the convex surface 15 and the concave surface 16 are generally between 15° and 30°. If the angle is too small, the guiding effect will be insignificant; if the angle is too large, it may affect the structural strength of the card block 10 and the card slot 11. The lengths of the convex surface 15 and the concave surface 16 are generally 1 / 3 to 1 / 2 of the length of the corresponding sidewall of the card block 10 and the card slot 11 to ensure sufficient guiding and contact area.
[0019] In some technical solutions, the card block 10 has a filling cavity 12 inside, an arched pad 13 is installed inside the filling cavity 12, and rounded corners 14 are provided on both sides of the end of the card block 10.
[0020] The filling cavity 12 is designed to reduce weight while maintaining the strength of the locking block 10, and to provide space for the installation of the arched pad 13. The arched pad 13 is installed within the filling cavity 12; its arched structure effectively enhances the compressive strength of the locking block 10, making it less prone to deformation under external forces. The rounded corners 14 on both sides of the ends of the locking block 10 are designed to prevent scratches on other components during the locking process, while also reducing stress concentration and improving the service life of the locking block 10. The dimensions of the filling cavity 12 should be determined based on the overall dimensions of the locking block 10. Generally, its length and width occupy 2 / 3 to 3 / 4 of the internal space of the locking block 10, and its height is slightly less than the thickness of the locking block 10. The arched pad 13 is generally made of high-strength metal materials, such as stainless steel, with a thickness of 1-2 mm. The radius of curvature of the arch can be designed according to the dimensions of the locking block 10 and the stress conditions, generally between 5-10 mm. The radius of the fillet 14 is generally 1-2 mm.
[0021] In some technical solutions, the filling pad 9 has a cavity 18 inside, and an elastic element 19 is provided inside the cavity 18.
[0022] In some technical solutions, a fan mount 4 is provided inside the fan hole 3, and a fan assembly 5 is assembled inside the fan mount 4.
[0023] The fan mount 4 is installed inside the fan hole 3, providing a mounting base for the fan assembly 5 and enabling it to operate stably. The fan mount 4 is generally made of aluminum alloy similar to the aluminum frame or other materials with certain strength and heat dissipation properties. The fan assembly 5 includes components such as a fan motor and fan blades, which are connected to the fan aluminum frame 1 through the fan mount 4 to achieve the heat dissipation function of the equipment. The dimensions of the fan mount 4 should be compatible with the fan hole 3, with its outer diameter generally being 0.5-1mm smaller than the inner diameter of the fan hole 3 for ease of installation. The height of the fan mount 4 can be determined based on the size of the fan assembly 5 and installation requirements, generally between 15-30mm. The specifications of the fan assembly 5 depend on the actual heat dissipation needs; for example, common computer case cooling fans may have a speed between 1000-3000 RPM and an airflow between 30-80 CFM (cubic feet per minute).
[0024] In some technical solutions, the side wall of the aluminum frame base 2 is provided with an equipment cavity 8.
[0025] The equipment cavity 8 is located on the side wall of the aluminum frame 2, and its function is to provide space for installing other auxiliary equipment, such as controllers and sensors. These auxiliary devices can monitor and control the fan's operating status, improving the intelligence and reliability of the entire cooling system. The shape and size of the equipment cavity 8 can be designed according to the size and shape of the equipment to be installed. The dimensions of the equipment cavity 8 can be determined according to the actual equipment to be installed. For example, if a small controller is installed, the length of the equipment cavity 8 may be 30-50mm, the width may be 20-30mm, and the depth may be 10-20mm.
[0026] In some technical solutions, the filling pad 9 and the fan aluminum frame 1 are fitted with a clearance.
[0027] The filler pad 9 and the fan aluminum frame 1 are fitted with a clearance fit. This ensures that the filler pad 9 fills and seals between the mounting frame 7 and the fan aluminum frame 1, while preventing installation difficulties or excessive stress caused by thermal expansion and contraction during equipment operation due to an overly tight fit, which could damage the aluminum frame or the filler pad 9. The clearance fit allows the filler pad 9 to expand and contract freely within a certain range, accommodating minor deformations of the aluminum frame. The gap between the filling pad 9 and the fan aluminum frame 1 is generally controlled between 0.1-0.3mm. This gap range can ensure the sealing effect and meet the requirements of thermal expansion and contraction.
[0028] Working process and principle: I. Work Process Assembly stage First, install the fan mount 4 inside the fan hole 3 of the fan aluminum frame 1, and secure it with four M3 screws (evenly distributed around the circumference of the fan mount 4). Tighten the screws to a torque of 1-2 N·m to ensure the fan mount 4 is stable. Next, assemble the fan assembly 5 into the fan mount 4. If there is a rubber pad at the connection between the fan mount 4 and the fan assembly 5, ensure the rubber pad is flat and fits snugly to reduce vibration transmission. Next, process the aluminum frame base 2. Install the mounting frame 7 onto the front side wall of the aluminum frame base 2 using four M4 bolts (distributed at the four corners of the mounting frame 7). Control the bolt tightening torque to 2-3 N·m. Then, attach the filler pads 9 (Shore hardness 40-60 HA, thickness 2-5 mm, width 10-20 mm) to the four outer walls of the mounting frame 7 using high-temperature resistant silicone adhesive. After attachment, press firmly to ensure a secure bond. Finally, assemble the fan aluminum frame 1 and the aluminum frame base 2. Align the mounting frame 7 with the rear interior of the fan aluminum frame 1, and smoothly insert it using the chamfered guide at the insertion end of the mounting frame 7. Control the insertion depth to 10-20mm, ensuring the filling pad 9 fits snugly against the inner wall of the fan aluminum frame 1. Simultaneously, align the four corner locking blocks 10 on the front side wall of the aluminum frame base 2 with the four corner locking slots 11 on the rear side wall of the fan aluminum frame 1. Guided by the engagement of the convex surfaces 15 on both sides of the locking blocks 10 and the concave surfaces 16 on both sides of the locking slots 11, apply appropriate force to engage the locking blocks 10 into the locking slots 11, completing the assembly. Operational phase After the equipment is started, the fan assembly 5 operates, and the fan blades rotate to generate airflow. The airflow flows through the fan hole 3 inside the aluminum frame to dissipate heat from the equipment. During operation, the vibration generated by the fan is transmitted through the fan base 4. The rubber pad at the connection between the fan base 4 and the aluminum fan frame 1, as well as the filling pad 9 on the outer wall of the mounting frame 7, absorb some of the vibration, reducing the vibration amplitude of the overall structure. The snap-fit structure 6 plays a continuous role during operation. The snap-fit block 10 fits tightly with the snap-fit slot 11. The arched pad 13 or elastic element 13 (such as a spring) inside the snap-fit block 10 provides continuous elastic force to ensure the stability of the snap-fit and prevent the fan aluminum frame 1 from separating from the aluminum frame seat 2. The filling pad 9 always adheres to the inner wall of the fan aluminum frame 1 to prevent dust, moisture and other impurities from entering. Maintenance phase When maintenance or component replacement is required, apply a reverse force to disengage the locking block 10 from the locking slot 11, separating the fan aluminum frame 1 from the aluminum frame base 2. If the fan assembly 5 needs to be replaced, loosen the screws securing the fan base 4, remove the fan base 4 and the internal fan assembly 5 for operation, and reinstall according to the assembly steps after the operation is completed. II. Working Principle The locking and fixing principle is based on the cooperation between the locking block 10 and the locking groove 11. The locking block 10 is 10-20mm long and wide, and 3-5mm thick. The locking groove 11 is slightly larger than the locking block 10 by 0.2-0.5mm, with a clearance of ±0.1-±0.2mm. The convex surfaces 15 (tilt angle 15°-30°) on both sides of the locking block 10 cooperate with the concave surfaces 16 (tilt angle 15°-30°) on both sides of the locking groove 11, which facilitates locking and increases the contact area and friction. The arched pad 13 inside the locking block 10 enhances the compressive strength. The elastic element 13 (such as a spring, with a wire diameter of 1-2mm, an outer diameter of 5-10mm, and an elastic coefficient of 5-10N / mm) generates elastic force through elastic deformation, ensuring tight contact between the locking block and the locking groove and preventing loosening. Sealing and Protection Principle: The filling pad 9 (rubber or silicone material) on the outer wall of the mounting frame 7 fits against the inner wall of the fan aluminum frame 1, filling the gap between them. The filling pad 9 and the fan aluminum frame 1 use a clearance fit (0.1-0.3mm) to ensure a seal while accommodating thermal expansion and contraction. At high temperatures (above 50℃), the gap can be increased to 0.2-0.3mm to prevent the filling pad from being squeezed and deformed; at low temperatures (below 0℃), the gap is reduced to 0.1-0.2mm to ensure a seal and effectively prevent impurities from entering. Vibration damping principle: During the transmission of vibration generated by the fan operation, the rubber pad at the connection between the fan base 4 and the fan assembly 5 first absorbs part of the vibration. The remaining vibration is transmitted to the mounting frame 7 through the fan aluminum frame 1, where the filling pad 9 (elastic material) absorbs the vibration again, reducing the impact of vibration on the overall structure and ensuring stable operation of the equipment. Heat dissipation principle: When the fan assembly 5 is running, the fan blades rotate, causing airflow to enter through the fan hole 3, forming an airflow channel inside the aluminum frame, carrying away the heat generated by the equipment and achieving heat dissipation. The diameter of the fan hole 3 is adapted to the fan size (such as 80mm, 92mm, 120mm, etc.) to ensure smooth airflow and improve heat dissipation efficiency.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An assembled metal aluminum frame, comprising a fan aluminum frame (1) and an aluminum frame base (2), characterized in that, The fan aluminum frame (1) is assembled at the front end of the aluminum frame base (2), and the side wall of the fan aluminum frame (1) is provided with a fan hole (3). The front side wall of the aluminum frame base (2) is fitted with an insert frame (7), which is inserted into the rear side of the fan aluminum frame (1). The four outer walls of the mounting frame (7) are all fitted with filling pads (9), and the filling pads (9) are fitted to the inner wall of the fan aluminum frame (1). The fan aluminum frame (1) and the aluminum frame base (2) are fitted together, and the four corners where they are fitted together are connected by a snap-fit structure (6). The snap-fit structure (6) includes snap-fit blocks (10) installed at the four corners of the front side wall of the aluminum frame base (2) and snap-fit slots (11) opened at the four corners of the rear side wall of the fan aluminum frame (1). The snap-fit blocks (10) are snapped into the snap-fit slots (11).
2. The assembled aluminum frame according to claim 1, characterized in that, The outer walls of both sides of the card block (10) are provided with inclined convex surfaces (15), and the inner walls of both sides of the card slot (11) are provided with inclined concave surfaces (16). The inclined convex surfaces (15) and the inclined concave surfaces (16) cooperate with each other.
3. The assembled aluminum frame according to claim 2, characterized in that, The card block (10) has a filling cavity (12) inside, and an arched pad (13) is installed inside the filling cavity (12). The card block (10) has rounded corners (14) on both sides of its ends.
4. The assembled aluminum frame according to claim 1, characterized in that, The filling pad (9) has a cavity (18) inside, and an elastic element (19) is provided inside the cavity (18).
5. The assembled aluminum metal frame according to claim 1, characterized in that, A fan seat (4) is provided inside the fan hole (3), and a fan assembly (5) is assembled inside the fan seat (4).
6. The assembled aluminum frame according to claim 1, characterized in that, The side wall of the aluminum frame base (2) is provided with an equipment cavity (8).
7. The assembled aluminum frame according to claim 1, characterized in that, The filler pad (9) and the fan aluminum frame (1) are fitted with a clearance.