Double-ball-bearing cooling fan structure

Abstract

The utility model relates to the technical field of double-ball-bearing cooling fans, and discloses a double-ball-bearing cooling fan structure which comprises a double-ball-bearing cooling fan body, and a first fan frame is arranged on one side of the air inlet end of the double-ball-bearing cooling fan body. The side, close to the double-ball-bearing cooling fan body, of the first fan frame is fixedly connected with four positioning rods which are arranged in a square mode, and four holes which are arranged in a square mode and matched with the positioning rods are formed in the double-ball-bearing cooling fan body. A second fan frame is arranged on the side, away from the first fan frame, of the double-ball-bearing cooling fan body, four positioning holes arranged in a square shape are formed in the second fan frame, the positioning holes are matched with the second fan frame, and U-shaped plates are arranged at the top and the bottom of the second fan frame. The double-ball-bearing cooling fan body is convenient to mount and dismount, the operation is simple, the difficulty of later maintenance work is effectively reduced, and the maintenance work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-ball bearing heat dissipation fans, in particular to a double-ball bearing heat dissipation fan structure. Background Art

[0002] A double ball bearing cooling fan is a fan that uses double ball bearing technology, which is mainly used for heat dissipation and air flow. Compared with other types of bearings, double ball bearings have a longer lifespan, usually reaching tens of thousands of hours of working time. In addition, double ball bearings reduce friction and noise, making them suitable for noise-sensitive environments. Due to their relatively simple structure, they are not easily affected by pollution such as dust, so they are easier to maintain. Therefore, double ball bearing cooling fans are often used in computer cooling, high-performance equipment, servers and other occasions that require effective heat dissipation. However, most double ball bearing cooling fans in the existing technology still have problems that need to be solved.

[0003] Most of the dual-ball bearing cooling fans in the prior art are directly fixed to the mounting surface of the computer case or the device using screws. After a period of use, the blades of the dual-ball bearing cooling fans will accumulate dust and dirt, which will affect the heat dissipation efficiency and operating efficiency, resulting in a decrease in fan performance. In order to ensure that the dual-ball bearing cooling fans can operate stably and effectively, regular maintenance is required. However, the fans used in computer cases, high-performance equipment, servers and other equipment are small in size, so the screws used for fixing are small in size, and professional tools need to be used for operation, which increases the complexity of the operation. Therefore, it is necessary to design a dual-ball bearing cooling fan structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a double ball bearing heat dissipation fan structure.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A double-ball bearing heat dissipation fan structure includes a double-ball bearing heat dissipation fan body, a first fan frame is provided on one side of the air inlet end of the double-ball bearing heat dissipation fan body, the first fan frame is fixedly connected to four positioning rods in a square layout on a side close to the double-ball bearing heat dissipation fan body, the double-ball bearing heat dissipation fan body is provided with four holes in a square layout that are compatible with the positioning rods, the double-ball bearing heat dissipation fan body is provided with a second fan frame on a side away from the first fan frame, the second fan frame is provided with four positioning holes in a square layout, the positioning holes are compatible with the second fan frame, the top and bottom of the second fan frame are both provided with U-shaped plates, both ends of the U-shaped plate are fixedly connected to a clamping block on the side close to the second fan frame, the bottom end of the clamping block is a bevel on the side close to the double-ball bearing heat dissipation fan body, the positioning rod is provided with a clamping groove at the end away from the first fan frame, the clamping groove is compatible with the clamping block, the top and bottom ends of the second fan frame are both provided with two circular grooves, and circular grooves are provided in the circular grooves. The fan body is convenient to install and disassemble, and the operation is simple, which effectively reduces the difficulty of later maintenance work and improves the maintenance work efficiency.

[0007] As a further solution of the present invention, the first fan frame is provided with four first shock-absorbing cotton pads in a square layout on one side close to the double ball bearing cooling fan body. The first shock-absorbing cotton pads are fixedly connected to the first fan frame and are glued to the first fan frame.

[0008] As a further solution of the present invention, the second fan frame is fixedly connected to four second shock-absorbing cotton pads in a square layout on one side close to the double-ball bearing cooling fan body. The second shock-absorbing cotton pads are glued to the second fan frame. When the double-ball bearing cooling fan body is working, the first shock-absorbing cotton pads and the second shock-absorbing cotton pads can effectively absorb the vibration generated during the operation of the fan, reduce the transmission of vibration to the equipment chassis or mounting surface, thereby reducing noise. The first shock-absorbing cotton pads and the second shock-absorbing cotton pads can also provide better grip, making the double-ball bearing cooling fan body more stable during operation and less prone to additional shaking, which is beneficial to improving the service life and performance of the fan.

[0009] As a further solution of the present invention, anti-slip grooves are provided on both sides of the U-shaped plate. The provision of the anti-slip grooves can increase friction, making it easier to pull the U-shaped plate.

[0010] As a further solution of the present invention, the first fan frame is fixedly connected to four threaded barrels in a square layout on one side close to the double ball bearing heat dissipation fan body, and the first fan frame is provided with a circular hole at the position of the threaded barrel.

[0011] As a further solution of the present invention, slots are provided at the top and bottom ends of the second fan frame, the slots are adapted to the card blocks, and the slots are communicated with the positioning holes.

[0012] As a further solution of the present invention, a fixing screw is provided in the threaded barrel, the fixing screw passes through the first fan frame, and the fixing screw is adapted to the threaded barrel.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts the technical means of installing the cooling fan with a quick-release mechanism, so when installing the dual-ball cooling fan body, the dual-ball cooling fan body and the second fan frame are put on the positioning rod, and then the second fan frame is pressed to make the card block fit into the card slot to install the dual-ball cooling fan body. When it needs to be disassembled for maintenance, the card block can be removed from the card slot to release the restriction, and the second fan frame and the dual-ball cooling fan body can be removed, which effectively solves the problem that most of the dual-ball bearing cooling fans in the prior art proposed in the background technology are directly fixed to the computer case or the mounting surface of the equipment with screws, but the fans used in computer cases, high-performance equipment, servers and other equipment are small in size, so the screws used for fixing are small in size, and professional tools need to be used for operation, which increases the complexity of the operation, thereby achieving the technical effect of easy installation and disassembly of the dual-ball bearing cooling fan body, simple operation, effectively reducing the difficulty of later maintenance work, and improving maintenance work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a double ball bearing heat dissipation fan structure proposed by the utility model;

[0016] Figure 2 This is a partial expanded structural diagram of a double ball bearing cooling fan structure proposed by the present invention;

[0017] Figure 3 This is a partial cross-sectional structural diagram of a dual ball bearing cooling fan structure proposed by the present invention;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1. Double ball bearing cooling fan body; 2. First fan frame; 3. Positioning rod; 4. Second fan frame; 5. Positioning hole; 6. U-shaped plate; 7. Block; 8. Slot; 9. Circular slot; 10. Round rod; 11. Disc; 12. Spring; 13. First shock-absorbing cotton pad; 14. Second shock-absorbing cotton pad; 15. Threaded barrel; 16. Anti-slip groove; 17. Slot; 18. Fixing screw. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the implementation regulations.

[0022] Reference Figure 1 - Figure 4A double ball bearing cooling fan structure includes a double ball bearing cooling fan body 1, a first fan frame 2 is provided on the air inlet side of the double ball bearing cooling fan body 1, the first fan frame 2 is fixedly connected to four positioning rods 3 in a square layout on the side close to the double ball bearing cooling fan body 1, the double ball bearing cooling fan body 1 is provided with four holes in a square layout that are compatible with the positioning rods 3, the double ball bearing cooling fan body 1 is provided with a second fan frame 4 on the side away from the first fan frame 2, and the second fan frame 4 is provided with a There are four positioning holes 5 in a square layout, which are adapted to the second fan frame 4. The top and bottom of the second fan frame 4 are both provided with U-shaped plates 6. Both ends of the U-shaped plates 6 are fixedly connected to a card block 7 on the side close to the second fan frame 4. The bottom end of the card block 7 is a bevel on the side close to the double ball bearing cooling fan body 1. The positioning rod 3 is provided with a card slot 8 at the end away from the first fan frame 2. The card slot 8 is adapted to the card block 7. The top and bottom ends of the second fan frame 4 are both provided with two circular grooves 9, and a round rod 10 is provided in the circular groove 9. The second fan frame is pressed against the second fan frame to make the card block fit into the card slot and the double-ball cooling fan body can be installed. When it needs to be disassembled for maintenance, the card block can be taken out from the card slot to release the restriction, and the second fan frame and the double-ball cooling fan body can be removed. This effectively solves the problem that most of the existing technologies proposed in the background technology are directly fixed to the computer case or the mounting surface of the equipment with screws, but the fans used in computer cases, high-performance equipment, servers and other equipment are small in size, so the screws used for fixing are small in size, and professional tools need to be used for operation, which increases the complexity of the operation. This realizes the technical effect of easy installation and disassembly of the double-ball bearing cooling fan body, simple operation, effectively reducing the difficulty of later maintenance work, and improving maintenance work efficiency.

[0023] In this embodiment, four first shock-absorbing cotton pads 13 in a square layout are provided on one side of the first fan frame 2 close to the double ball bearing heat dissipation fan body 1 , and the first shock-absorbing cotton pads 13 are fixedly connected to the first fan frame 2 .

[0024] In this embodiment, the second fan frame 4 is fixedly connected to four second shock-absorbing cotton pads 14 in a square layout on one side close to the dual-ball bearing cooling fan body 1. When the dual-ball bearing cooling fan body 1 is working, the first shock-absorbing cotton pad 13 and the second shock-absorbing cotton pad 14 can effectively absorb the vibration generated during the operation of the fan, reduce the vibration transmitted to the equipment chassis or installation surface, and thus reduce noise. The first shock-absorbing cotton pad 13 and the second shock-absorbing cotton pad 14 can also provide better grip, making the dual-ball bearing cooling fan body 1 more stable during operation and less prone to additional shaking, which is beneficial to improving the service life and performance of the fan.

[0025] In this embodiment, anti-slip grooves 16 are provided on both sides of the U-shaped plate 6. The provision of the anti-slip grooves 16 can increase friction, making it easier to pull the U-shaped plate 6.

[0026] In this embodiment, four square-shaped threaded barrels 15 are fixedly connected to the first fan frame 2 on one side close to the double-ball bearing heat dissipation fan body 1 . The first fan frame 2 is provided with round holes at the positions of the threaded barrels 15 .

[0027] In this embodiment, slots 17 are provided at both the top and bottom ends of the second fan frame 4 . The slots 17 are adapted to the clamping block 7 , and the slots 17 are communicated with the positioning hole 5 .

[0028] In this embodiment, a fixing screw 18 is provided in the threaded barrel 15 . The fixing screw 18 passes through the first fan frame 2 , and the fixing screw 18 is matched with the threaded barrel 15 .

[0029] Working principle: When using this device, the first fan frame 2 can be pre-fixed to the place where heat dissipation is required, such as on the computer case or the installation surface of the computer room, and screw holes are opened on the case. The fixing screws 18 are screwed into the screw holes through the threaded barrel 15 and the round holes on the first fan frame 2 to fix the first fan frame 2 on the case. Then, the double ball bearing cooling fan body 1 is sleeved on the four positioning rods 3, and then the second fan frame 4 is installed. It is positioned through the positioning holes 5 and the positioning rods 3, and then the second fan frame 4 is pressed to move the second fan frame 4 toward the direction of the first fan frame 2. When the beveled edge of the bottom end of the block 7 contacts the positioning rod 3, if the second fan frame 4 is continued to be pressed, the block 7 will move in the slot 17, and the block 7 will drive the U-shaped plate 6 to move so that the U-shaped plate 6 moves away from the second fan frame 4. The movement of the U-shaped plate 6 will drive the round rod 10 to move, and the round rod 10 will drive the disc 11 to move, and the disc 11 will squeeze the spring 12 to shrink the spring 12. When the block 7 moves to the position of the slot 8, the block 7 is no longer squeezed, and the spring 12 will stretch, which will enable the disc 11 to move back to the initial position, and also enable the U-shaped plate 6 to return to the initial position, so that the block 7 can be again The second fan frame 4 will not separate from the second fan frame 4 under the action of external force, so as to ensure the stability of the double ball bearing heat dissipation fan body 1. After the installation is completed, the first shock-absorbing cotton pad 13 and the second shock-absorbing cotton pad 14 will contact the two sides of the double ball bearing heat dissipation fan body 1. When the double ball bearing heat dissipation fan body 1 is working, the first shock-absorbing cotton pad 13 and the second shock-absorbing cotton pad 14 can effectively absorb the vibration generated during the operation of the fan, reduce the vibration transmitted to the equipment chassis or the installation surface, thereby reducing noise. The second shock-absorbing cotton pad 14 can also provide better grip, making the dual-ball bearing cooling fan body 1 more stable during operation and less prone to additional shaking, which is beneficial to improving the service life and performance of the fan. After a period of use, when the cooling fan needs to be maintained, the operator can pull the two U-shaped plates 6 to move the two U-shaped plates 6 away from each other, and the U-shaped plates 6 will drive the card block 7 to move and be pulled out of the card slot 8, and the contact limit can be reached. Pull the second fan frame 4 to remove the second fan frame 4 from the positioning rod 3, and the dual-ball bearing cooling fan body 1 can be removed for inspection or cleaning of the fan blades.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double ball bearing cooling fan structure, comprising a double ball bearing cooling fan body (1), characterized in that: A first fan frame (2) is provided on one side of the air inlet end of the double ball bearing heat dissipation fan body (1); the first fan frame (2) is fixedly connected with four positioning rods (3) in a square layout on a side close to the double ball bearing heat dissipation fan body (1); four holes in a square layout that are adapted to the positioning rods (3) are provided on the double ball bearing heat dissipation fan body (1); a second fan frame (4) is provided on the side of the double ball bearing heat dissipation fan body (1) away from the first fan frame (2); four positioning holes (5) in a square layout are provided on the second fan frame (4); the positioning holes (5) are adapted to the second fan frame (4); the top of the second fan frame (4) is provided with a plurality of positioning holes (5) in a square layout. The top and bottom of the second fan frame (4) are both provided with U-shaped plates (6), both ends of the U-shaped plates (6) are fixedly connected with a clamping block (7) on the side close to the second fan frame (4), the bottom end of the clamping block (7) is a bevel on the side close to the double ball bearing heat dissipation fan body (1), the positioning rod (3) is provided with a clamping groove (8) at the end away from the first fan frame (2), the clamping groove (8) is adapted to the clamping block (7), the top and bottom ends of the second fan frame (4) are both provided with two circular grooves (9), a round rod (10), a circular disk (11) and a spring (12) are provided in the circular groove (9), the round rod (10) is fixedly connected to the circular disk (11), and the spring (12) is sleeved on the round rod (10).

2. The double ball bearing cooling fan structure according to claim 1, characterized in that: The first fan frame (2) is provided with four first shock-absorbing cotton pads (13) arranged in a square shape on one side close to the double-ball bearing heat dissipation fan body (1), and the first shock-absorbing cotton pads (13) are fixedly connected to the first fan frame (2).

3. The double ball bearing cooling fan structure according to claim 1, characterized in that: The second fan frame (4) is fixedly connected to four second shock-absorbing cotton pads (14) arranged in a square shape on one side close to the double-ball bearing heat dissipation fan body (1).

4. The double ball bearing heat dissipation fan structure according to claim 1, characterized in that: Anti-slip grooves (16) are provided on both sides of the U-shaped plate (6).

5. The double ball bearing heat dissipation fan structure according to claim 2, characterized in that: The first fan frame (2) is fixedly connected to four threaded barrels (15) arranged in a square shape on one side close to the double ball bearing heat dissipation fan body (1), and the first fan frame (2) is provided with circular holes at the positions of the threaded barrels (15).

6. The double ball bearing heat dissipation fan structure according to claim 3, characterized in that: The top and bottom ends of the second fan frame (4) are both provided with slots (17), the slots (17) are adapted to the card block (7), and the slots (17) are communicated with the positioning hole (5).

7. The double ball bearing heat dissipation fan structure according to claim 5, characterized in that: A fixing screw (18) is provided in the threaded barrel (15), the fixing screw (18) passes through the first fan frame (2), and the fixing screw (18) is adapted to the threaded barrel (15).

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