Fan frame with magnet adsorption function

Abstract

The utility model provides a fan frame with a magnet adsorption function. The fan frame comprises a frame body used in cooperation with a fan body, a containing cavity is formed in the middle of the frame body and used for installing the fan body, a rotating shaft is arranged in the center of the fan body, an installing column extending outwards is arranged in the center of the containing cavity, and a groove is formed in the installing column and used for being connected with the rotating shaft of the fan body. A magnetic block is arranged in the groove, the magnetic block is in magnetic rotating connection with the free end of the rotating shaft, and a plurality of ribs are further arranged in the groove and used for clamping and fixing the magnetic block; a magnet adsorption mechanism is introduced, the inherent defect that a traditional fan frame depends on a single bearing for supporting is overcome, the magnetic blocks are additionally arranged in the grooves and magnetically attract the rotating shaft, even if the bearing loses efficacy, the magnetic force can still attract the end of the rotating shaft and prevent the rotating shaft from being separated from the fan frame, and potential safety hazards are reduced; due to the collaborative design of the ribs and the clamping blocks, stable installation of the magnetic blocks is ensured, displacement caused by vibration or centrifugal force is avoided, and meanwhile the installation process is simplified through an inclined plane guiding structure; and the device is suitable for equipment with high rotating speed and long-period operation, and has a wide application prospect.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, specifically relating to a fan frame with magnetic adsorption function. Background Technology

[0002] Currently, traditional fan frame structures generally rely on bearings to physically support the rotating shaft. These bearings are mostly made of metal or oil-impregnated materials, and under long-term high-speed operation, they are prone to support failure due to metal fatigue, dried-out grease, or misalignment of fit tolerances. These shortcomings not only affect the lifespan of the equipment but may also lead to safety hazards such as loosening or even detachment between the fan body and the bearing, especially in scenarios requiring long-term stable operation. Although existing technologies have made improvements by optimizing bearing materials or lubrication processes, they cannot fundamentally eliminate the risk of rotating shaft detachment. A more reliable structural design is urgently needed to improve safety and stability. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] This invention provides a fan frame with magnetic adsorption function, which aims to solve the problem of fan body falling off.

[0005] (2) Technical solution

[0006] This utility model provides a magnetic adsorption fan frame, including a frame that works with a fan body. The frame has a cavity in the middle for mounting the fan body. The fan body has a rotating shaft at its center. The cavity has an outwardly extending mounting post at its center. The mounting post has a groove for connecting the rotating shaft of the fan body.

[0007] The groove contains a magnetic block that is magnetically rotatably connected to the free end of the rotating shaft. The groove also contains several ribs for engaging and fixing the magnetic block.

[0008] Furthermore, a plurality of the ribs are arranged in a ring array around the magnetic block at intervals to form a mounting position for accommodating the magnetic block, and gaps are provided between adjacent ribs for elastic deformation of the ribs.

[0009] Furthermore, the rib is provided with a snap-fit ​​block extending toward the center of the groove.

[0010] Furthermore, the end of the snap-fit ​​block away from the magnetic block has an inclined surface, which is used to guide the magnetic block (6) into the mounting position and snap it in.

[0011] Furthermore, the free end of the rotating shaft has an arc-shaped surface structure.

[0012] Furthermore, the free end of the rotating shaft has a ball-shaped structure.

[0013] Furthermore, the frame includes an outer frame and a base, with an air duct connecting the receiving cavity formed between the outer frame and the base, the mounting column being disposed at the center of the base, and a plurality of connecting members being provided between the outer frame and the base.

[0014] Furthermore, the connector includes a fixing rod and a cable routing rod, the cable routing rod having a cable management groove connecting the base (3) and the outer frame.

[0015] Furthermore, the connection between the base and the cable management channel is provided with a cable outlet hole, and the connection between the outer frame and the cable management channel is provided with a through hole, with a notch at one end of the through hole.

[0016] Furthermore, the opening distance at the upper part of the notch is greater than the opening distance at the lower part, and the upper part has an arc-shaped structure.

[0017] Compared with existing technologies, the advantages of this invention are as follows: By introducing a magnetic adsorption mechanism, the inherent defect of traditional fan frames relying on a single bearing for support is effectively solved. A magnetic block is added inside the mounting column groove, attracting the rotating shaft magnetically. Even if the bearing fails, the magnetic force can still attract the end of the rotating shaft, preventing it from detaching from the fan frame and significantly reducing safety hazards. The coordinated design of the ribs and locking blocks ensures the magnetic block is securely installed, avoiding displacement caused by vibration or centrifugal force. The inclined guide structure simplifies the installation process. The cable routing rod has built-in cable management grooves and notches, enabling rapid data cable routing and fixing. The reliability of the rotating shaft operation is improved, and the modular design simplifies assembly and maintenance processes. It is particularly suitable for high-speed, long-cycle operating equipment and has broad application prospects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0019] Figure 2 This is an enlarged view of the mounting column of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0021] Figure 4 This is a cross-sectional view of the mounting column of this utility model.

[0022] Figure 5 This is an enlarged view of the cable routing rod of this utility model.

[0023] Figure 6 This is an enlarged view of the notch in this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0025] Reference numerals: 1-Frame, 11-Receiving cavity, 2-Outer frame, 21-Front frame, 22-Rear frame, 221-Through hole, 222-Notch, 2221-Upper part, 2222-Lower part, 23-Side frame, 24-Mounting hole, 3-Base, 31-Cable outlet hole, 4-Mounting post, 41-Groove, 42-Rib, 421-Snap-fit ​​block, 422-Bevel, 43-Mounting position, 5-Fan body, 51-Rotating shaft, 6-Magnetic block, 7-Connector, 71-Fixing rod, 72-Cable routing rod, 721-Cable channel, 722-Protrusion. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figure 1-3 As shown, this utility model provides a magnetically adsorbed fan frame, including a frame body 1. The frame body 1 has a cylindrical mounting cavity 91 in the middle for mounting the fan body 5 and its driving assembly. The frame body 1 includes an integrally formed outer frame 2, which includes a front frame 21, a rear frame 22, and a side frame 23. The front frame 21 and the rear frame 22 are both square frames. The side frame 23 is a circular frame with a hollow structure in the middle as an air duct and communicates with the receiving cavity 11. The two square frames have circular hollows of the same size in the middle. The side frame 23 is set between the front frame 21 and the rear frame 22 and is integrally formed to form the outer frame 2. A circular base 3 is provided at the center of the circular hollow. The base 3 is used to mount the fan body 5 and the driving assembly. The fan body 5 has a fixedly connected rotating shaft 51 at its center. The end of 1 has an arc-shaped surface structure or a ball-shaped structure. The drive component electromagnetically drives the rotating shaft 51 to rotate, indirectly driving the fan body 5 to rotate around the axis. Several connectors 7 are provided between the rear frame 22 and the base 3 to connect the two. The space formed by the front frame 21 and the side frame 23 is used to accommodate the fan body 5 and the drive component. A mounting post 4 extends from the center of the base 3 along the air duct direction. The mounting post 4 is a cylinder. The mounting post 4 has a groove 41 for mounting a bearing. The rotating shaft 51 is inserted into the bearing. The bearing supports the rotating shaft 51 and reduces friction and noise. The groove 41 also has a circular magnet 6. The free end of the rotating shaft 51 passes through the bearing and is magnetically rotatably connected to the magnet 6. The arc-shaped surface structure or ball-shaped structure at the end of the rotating shaft 51 can also reduce the friction with the magnet 6.

[0028] Commonly available computer case fans may encounter some problems during use. After long-term use, some low-strength metal bearings may experience fatigue fracture due to prolonged high-speed rotation, causing the rotating shaft 51 to fail to fit with the bearing and fall off. Alternatively, if inferior grease or housing material is used in some oil-impregnated bearings, the grease may dry out easily, exacerbating the direct friction between the shaft and the bearing, eventually "wearing through" the bearing. Or, the fit precision between the bearing and the rotating shaft 51 (such as interference fit tolerance) may not meet the design requirements, which may result in a gap during initial installation. During high-speed rotation, centrifugal force will amplify this gap, gradually causing the shaft to "flip out" of the bearing.

[0029] To solve this problem, the magnetic adsorption function of the fan frame described in this application is used. A magnetic block 6 is added in the groove 41 where the bearing is installed. The magnetic block 6 is attracted to the rotating shaft 51. Even if the bearing cannot support the rotating shaft 51 for various reasons and tends to detach from the bearing, the magnetic block 6 uses its magnetism to hold the end of the rotating shaft 51 in place, so that the rotating shaft 51 will not detach from the fan frame, thus avoiding the safety hazards and damage caused by the fan body 5 falling off.

[0030] Specifically, such as Figure 4 As shown, in one embodiment of this utility model, the groove 41 of the mounting column 4 is provided with ribs 42. The ribs 42 are fan-shaped blocks, and there are four of them. They are distributed at the bottom of the groove 41 and together enclose the circular magnetic block 6. During installation, the magnetic block 6 is simply placed into the groove 41, and then a pushing force is applied to press it towards the bottom of the groove 41 until the four ribs 42 engage the magnetic block 6. This structural design makes the installation of the magnetic block 6 simpler and more convenient, while also maintaining stability. The distribution design of the ribs 42 also allows the magnetic block 6 to be fixed at the center of the bottom of the groove 41, ensuring that the magnetic block 6 can be magnetically attracted to the rotating shaft 51. In other embodiments, the magnetic block 6 is fixed in the groove 41 by adhesive, magnetic attraction, or other methods, which can achieve the same effect.

[0031] Furthermore, the rib 42 is provided with a snap-fit ​​block 421 extending towards the center of the groove 41. The snap-fit ​​block 421 and the bottom of the groove 41 form a mounting position 43, which is adapted to the magnetic block 6. The end of the rib 42 away from the bottom of the groove 41 is also provided with a slope 422. During the process of pressing the magnetic block 6 towards the bottom of the groove 41, the magnetic block 6 can move more smoothly towards the bottom of the groove 41 through the guidance of the slope 422 until the magnetic block 6 is snapped into the mounting position 43. This structural design of the snap-fit ​​block 421 further enhances the stability of the magnetic block 3 in the groove 41. At the same time, the design of the slope 422 makes the installation of the magnetic block 6 smoother and less strenuous.

[0032] Furthermore, there is a gap between the four ribs 42. When the magnetic block 31 moves towards the bottom of the groove 41 and presses the ribs 42 from top to bottom, the ribs 42 will deform and release stress. The gap between adjacent ribs 42 can serve as an extension space for deformation and stress release. This structure makes it smoother and easier to install the magnetic block 6.

[0033] Specifically, such as Figure 5 As shown, in one embodiment of this utility model, conventional chassis fans are fixedly installed against the chassis wall. The drive component set on the base 3 also includes a data cable. There are only three options for the cable routing path: the front frame 21, the rear frame 22, and the side frame 23. If the front frame 21 is used as the cable routing path, it must pass through the fan body 5. The rear frame 22 is generally attached to the wall, which can easily squeeze the data cable. At the same time, the exposed data cable is easily damaged. Therefore, the best path is to exit from the side frame 23.

[0034] To achieve this goal, the connector 7 is designed with two structures: a fixing rod 71 and a cable routing rod 72. The fixing rod 71 is a solid rod, and the cable routing rod 72 has a cable management groove 721 that connects the base 3 and the rear frame 22. The connection between the base 3 and the cable management groove 721 has a cable outlet hole 31, and the connection between the rear frame 22 and the cable management groove 721 has a through hole 221. The through hole 221 passes through the rear frame 22 and connects to the side frame 23. When managing the cables, the data cables on the base 3 enter the cable management groove 721 through the cable outlet hole 31 and then enter the side frame 23 through the through hole 12. This structural design makes the data cables on the base 2 more organized.

[0035] Furthermore, the cable management groove 721 is provided with several protrusions 722 arranged alternately at both ends. The protrusions 722 can enhance the stability of the data cable in the cable management groove 721 to a certain extent and prevent the data cable from falling out of the cable management groove 721.

[0036] Specifically, such as Figure 6 As shown, in one embodiment of this utility model, since data cables are generally designed to be very long and have plugs at the ends, the process of passing the data cable through the through hole 221 from the end is very cumbersome. At the same time, the area of ​​the through hole 221 may not be able to accommodate the plug of the data cable (such as a USB plug). In order to solve this problem, a notch 222 is provided on the side of the through hole 221. The notch 222 connects the through hole 221 and the outside of the rear frame 22. When tidying up the cable, any part of the data cable can be inserted into the through hole 221 through the notch 222. The whole operation is very convenient and fast.

[0037] Furthermore, the structure of the notch 222 is "wider at the top and narrower at the bottom" and "rounder at the top and squarer at the bottom". Specifically, the opening distance of the upper part 2221 is greater than the opening distance of the lower part 2222. The upper part 2221 is an arc-shaped surface, and the lower part 2222 is square. This upper wide and upper round structure design makes it smoother and more convenient for the data cable to be inserted into the notch 222. The lower narrow and lower structure design makes it less likely for the data cable to "return" after being inserted into the notch 222. The entire "wider at the top and narrower at the bottom" and "rounder at the top and squarer at the bottom" structure acts as an approximate one-way valve.

[0038] Specifically, such as Figure 7 As shown, in one embodiment of this utility model, the outer frame 2 is provided with a plurality of mounting holes 24, the number of which is 8, with four each for the upper frame 11 and the lower frame 12, distributed at the four corners of the square frame. The mounting holes 24 of the upper frame 11 and the lower frame 12 are corresponding. This structural design ensures that when the fan frame is fixed to the wall, the mounting holes 24 are provided regardless of whether the upper frame 11 or the lower frame 12 is chosen to contact the wall.

[0039] The working principle of this utility model is explained in detail below:

[0040] This invention achieves stable operation of the rotating shaft 51 through the synergistic effect of magnetic adsorption mechanism and structural optimization. Specifically, the magnetic block 6 is embedded in the groove 41 of the mounting post 4 of the fan frame base 3, and forms an additional fixing force with the end of the rotating shaft 51 of the fan body 5 through magnetic attraction. When the drive assembly drives the rotating shaft 51 to rotate at high speed, even if the bearing's support force decreases due to wear or lubrication failure, the adsorption force of the magnetic block 6 can still effectively constrain the rotating shaft 51, preventing it from detaching from the groove 41. The ribs 42 set in the groove 41 fix the magnetic block 6 through the snap-fit ​​block 421 and the inclined surface 422 structure, ensuring that it does not shift under vibration or centrifugal force. At the same time, the cable management groove 721 and the through hole 221 and notch 222 of the cable routing rod 72 are designed to optimize the data cable path, avoiding cable compression or exposure damage; the symmetrical distribution of the mounting holes 24 adapts to various installation scenarios. The overall structure significantly improves the stability and safety of fan operation through the dual protection of magnetic attraction and mechanical fixation.

[0041] The innovation of this invention lies in its introduction of a magnetic adsorption mechanism, which effectively solves the inherent defect of traditional fan frames relying on a single bearing for support. A magnetic block is added within the mounting post groove, attracting the rotating shaft magnetically. Even if the bearing fails, the magnetic force can still hold the end of the rotating shaft, preventing it from detaching from the fan frame and significantly reducing safety hazards. The coordinated design of the ribs and locking blocks ensures the magnetic block is securely installed, preventing displacement due to vibration or centrifugal force. The inclined guide structure simplifies the installation process. The cable management rod features built-in cable trays and notches for rapid cable routing and fixing. The multi-mounting hole layout adapts to various installation scenarios, enhancing versatility. Compared to existing technologies, this invention not only improves the reliability of the rotating shaft operation but also simplifies assembly and maintenance processes through modular design. It is particularly suitable for high-speed, long-cycle equipment and has broad application prospects.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification 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 implementations that can be understood by those skilled in the art.

[0043] 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.

Claims

1. A fan frame with magnetic adsorption function, characterized in that, Includes a frame (1) used in conjunction with the fan body (5), the frame (1) has a cavity (11) in the middle for mounting the fan body (5), the fan body (5) has a rotating shaft (51) at the center, the cavity (11) has an outwardly extending mounting post (4) at the center, and the mounting post (4) has a groove (41) for connecting the rotating shaft (51) of the fan body (5); The groove (41) is provided with a magnetic block (6), which is magnetically rotatably connected to the free end of the rotating shaft (51). The groove (41) is also provided with several ribs (42) for clamping and fixing the magnetic block (6).

2. The magnetic adsorption fan frame according to claim 1, characterized in that, A plurality of the ribs (42) are arranged in a ring array around the magnetic block (6) and form a mounting position (43) for accommodating the magnetic block (6). There is a gap between adjacent ribs (42) for elastic deformation of the ribs (42).

3. The magnetic adsorption fan frame according to claim 2, characterized in that, The rib (42) is provided with a snap-fit ​​block (421) extending toward the center of the groove (41).

4. The magnetic adsorption fan frame according to claim 3, characterized in that, The snap-fit ​​block (421) has a bevel (422) at one end away from the magnetic block (6) to guide the magnetic block (6) into the mounting position (43) and snap it in.

5. The magnetic adsorption fan frame according to claim 1, characterized in that, The free end of the rotating shaft (51) has an arc-shaped surface structure.

6. The magnetic adsorption fan frame according to claim 1, characterized in that, The free end of the rotating shaft (51) has a ball-shaped structure.

7. A magnetic adsorption fan frame according to claim 1, characterized in that, The frame (1) includes an outer frame (2) and a base (3). An air duct connecting the receiving cavity (11) is formed between the outer frame (2) and the base (3). The mounting column (4) is located at the center of the base (3). Several connectors (7) are provided between the outer frame (2) and the base (3).

8. A magnetic adsorption fan frame according to claim 7, characterized in that, The connector (7) includes a fixing rod (71) and a cable routing rod (72), and the cable routing rod (72) is provided with a cable management groove (721) that connects the base (3) and the outer frame (2).

9. A magnetic adsorption fan frame according to claim 8, characterized in that, The connection between the base (3) and the cable management groove (721) is provided with a cable outlet hole (31), and the connection between the outer frame (2) and the cable management groove (721) is provided with a through hole (221). One end of the through hole (221) is provided with a notch (222).

10. A magnetic adsorption fan frame according to claim 9, characterized in that, The opening distance of the upper part (2221) of the notch (222) is greater than the opening distance of the lower part (2222), and the upper part (2221) is an arc surface structure.

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