Cooling fan with hollow structure

Abstract

The utility model discloses a heat dissipation fan with a hollow structure, which comprises a fan frame, fan blades, a display module and a driving module, a mounting cylinder is arranged in the middle of the fan frame, a first bearing is arranged in the mounting cylinder, a sleeving shaft is arranged in the middle of the fan blades, the sleeving shaft is inserted in the mounting cylinder, a second bearing is arranged in the sleeving shaft, a fixing shaft is arranged in the middle of the display module, and the driving module is arranged in the fixing shaft. The fixing shaft is inserted into the sleeving shaft, the end portion of the insertion end penetrates through the bottom of the mounting cylinder to be in limiting connection, the driving module is arranged on the outer side of the mounting cylinder and matched with the fan blades, and when the driving module drives the fan blades to rotate, the display module is in a standing state through the fixing shaft. According to the cooling fan of the hollow structure, the overall structure of the cooling fan can be simplified through the installation cylinder of the fan frame, the hollow sleeving shaft of the fan blades and the hollow fixing shaft of the display module, assembling is convenient and fast, after assembling, the driving module can drive the fan blades to rotate, and the cooling effect is good. When the fan blades rotate, the display module can be in a standing state through the fixing shaft.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a hollow structure cooling fan. Background Technology

[0002] With the changing consumption patterns in the market, people are paying more and more attention to the visual appeal of assembled computer peripherals. In addition, the design of computer cases has led to the introduction of many transparent exteriors and even popular structural designs with lighting. Therefore, for the monotonous cooling fan structure, although some manufacturers can combine brand logos or displays on the surface of the cooling fan, these can only be presented when the fan is stationary. When the cooling fan is rotating, it is impossible to tell.

[0003] In response to this, a cooling fan with rotating blades while the display screen or brand logo remains stationary has been designed on the market, such as Chinese Patent: 2022231047061. However, in order to achieve the above-mentioned functional characteristics, the structure of such cooling fans becomes more complex, which makes them extremely inconvenient to assemble. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a hollow structure cooling fan that is simple in structure and easy to assemble.

[0005] To solve the above technical problems, the present invention can be implemented using the following technical solutions:

[0006] A hollow structure cooling fan, comprising:

[0007] A frame, wherein a cylindrical mounting cylinder is provided in the middle of the frame, and a first bearing is provided inside the mounting cylinder;

[0008] A fan blade, wherein a hollow sleeve shaft is provided in the middle of the fan blade, the sleeve shaft is inserted into the mounting cylinder, the outer wall of which is connected to the inner ring of the first bearing, and a second bearing is provided in the sleeve shaft;

[0009] A display module has a hollow fixed shaft in the middle, which is inserted into a sleeve shaft. Its outer wall is connected to the inner ring of the second bearing, and the insertion end of the fixed shaft passes through the bottom of the mounting cylinder for limiting connection.

[0010] A drive module is located on the outside of the mounting cylinder and cooperates with the fan blades. When the drive module drives the fan blades to rotate, the display module forms a stationary state through the fixed shaft.

[0011] In one embodiment, a first elastic element is provided between the inner side of the mounting cylinder and the outer side of the sleeve shaft, and the two ends of the first elastic element abut against the fan blade and the first bearing, respectively.

[0012] In one embodiment, a second elastic element is provided between the inner side of the sleeve shaft and the outer side of the fixed shaft, and the two ends of the second elastic element abut against the display module and the second bearing, respectively.

[0013] In one embodiment, the insertion end of the fixed shaft is provided with a first cut surface, and the through hole at the bottom of the mounting cylinder is provided with a second cut surface corresponding to the first cut surface.

[0014] In one embodiment, the insertion end of the fixed shaft is provided with a groove. When the insertion end of the fixed shaft passes through the bottom of the mounting cylinder, it can be engaged into the groove by a retaining ring to limit the connection between the fixed shaft and the mounting cylinder.

[0015] In one embodiment, the display module is a display screen that can be electrically connected to the drive module via wires to display patterns or text, and the wires can be laid along the interior of a fixed axis. Beneficial effects

[0016] This utility model relates to a hollow structure cooling fan. An installation cylinder is provided in the middle of the fan frame, and the drive module is located on the outside of the installation cylinder. A first bearing is installed inside the installation cylinder, and the hollow sleeve shaft of the fan blade is inserted into the installation cylinder and connected to the first bearing. A second bearing is installed inside the hollow sleeve shaft, and the hollow fixing shaft of the display module is inserted into the sleeve shaft and connected to the second bearing. The bottom end of the fixing shaft passes through the bottom of the installation cylinder for limiting and fixing. This completes the assembly of the cooling fan. The overall structure of the cooling fan is simplified by using the installation cylinder of the fan frame, the hollow sleeve shaft of the fan blade, and the hollow fixing shaft of the display module, making assembly convenient and quick. After assembly, the drive module can drive the fan blade to rotate, and when the fan blade rotates, the display module can be stationary through the fixing shaft. Attached Figure Description

[0017] Figure 1 This is an exploded view of the hollow structure cooling fan of this utility model;

[0018] Figure 2 This is a cross-sectional view of the hollow structure cooling fan of this utility model;

[0019] Figure 3 This is a schematic diagram of the fan frame of the hollow structure cooling fan of this utility model;

[0020] Figure 4 This is a schematic diagram of the fan blades of the hollow structure cooling fan of this utility model;

[0021] Figure 5 This is a schematic diagram of the display module of the hollow structure cooling fan of this utility model;

[0022] Figure 6This is an exploded view of the drive module of the hollow structure cooling fan of this utility model.

[0023] As shown in the attached diagram:

[0024] 100. Sash frame; 110. Mounting cylinder; 111. Second cut surface; 120. First bearing; 130. Cover;

[0025] 200. Fan blade; 210. Sleeve shaft; 220. Second bearing; 230. Fan blade;

[0026] 300, Display module; 310, Fixed shaft; 311, First cut surface; 312, Slot; 320, Snap ring;

[0027] 400. Drive module; 410. PCB board; 420. Stator; 430. Rotor;

[0028] 500. First elastic element;

[0029] 600. Second elastic element. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figures 1 to 6 A hollow structure cooling fan, comprising:

[0034] A frame 100, wherein a cylindrical mounting cylinder 110 is provided in the middle of the frame 100, and a first bearing 120 is provided inside the mounting cylinder 110;

[0035] A fan blade 200, wherein a hollow sleeve shaft 210 is provided in the middle of the fan blade 200, the sleeve shaft 210 is inserted into the mounting cylinder 110, its outer wall is connected to the inner ring of the first bearing 120, and a second bearing 220 is provided in the sleeve shaft 210.

[0036] A display module 300 has a hollow fixed shaft 310 in the middle. The fixed shaft 310 is inserted into the sleeve shaft 210. Its outer wall is connected to the inner ring of the second bearing 220, and the insertion end of the fixed shaft 310 passes through the bottom of the mounting cylinder 110 for limiting connection.

[0037] A drive module 400 is located on the outside of the mounting cylinder 110 and cooperates with the fan blade 200. When the drive module 400 drives the fan blade 200 to rotate, the display module 300 is stationary through the fixed shaft 310.

[0038] Specifically, in this embodiment, a mounting cylinder 110 is provided in the middle of the fan frame 100, and the drive module 400 is located on the outside of the mounting cylinder 110. A first bearing 120, which is a ball bearing, is provided inside the mounting cylinder 110. Then, a hollow sleeve shaft 210 in the middle of the fan blade 200 is inserted into the mounting cylinder 110. After insertion, the outer wall of the sleeve shaft 210 is interference-fitted with the inner ring of the first bearing 120. A second bearing 220, also a ball bearing, is provided inside the hollow sleeve shaft 210. After the fan blade 200 is assembled with the fan frame 100, the fixing shaft 310 of the display module 300 is inserted from the sleeve shaft 210. The end is fixed by the bottom of the mounting cylinder 110, thus completing the assembly of the cooling fan. The mounting cylinder 110 of the fan frame 100, the hollow sleeve shaft 210 in the middle of the fan blade 200, and the hollow fixing shaft 310 of the display module 300 simplify the overall structure of the cooling fan and facilitate the assembly of the fan frame 100, fan blade 200, display module 300 and drive module 400. After assembly, the display module 300 and fan blade 200 will not affect each other. When the drive module 400 drives the fan blade 200 to rotate, the display module 300 can be stationary through the fixing shaft 310, thereby greatly improving the aesthetics and entertainment of the cooling fan to meet consumer demand.

[0039] In addition, to connect and fix the display module 300 to the mounting cylinder 110, a slot 312 is provided at the insertion end of the fixed shaft 310 of the display module 300 in this embodiment. After the insertion end of the fixed shaft 310 is inserted through the bottom of the mounting cylinder 110, a retaining ring 320 can be inserted into the slot 312 to limit the insertion end of the fixed shaft 310, so as to realize the assembly connection between the fixed shaft 310 and the mounting cylinder 110. In order to make the fixed shaft 310 more stable after assembly, a first cut surface 311 is provided at the insertion end of the fixed shaft 310, and a second cut surface 111 corresponding to the first cut surface 311 is provided in the through hole at the bottom of the mounting cylinder 110. Through the cooperation between the first cut surface 311 and the second cut surface 111, the fixed shaft 310 can be prevented from rotating, thereby making the connection structure between the display module 300 and the mounting cylinder 110 reasonably designed and ensuring the stability of the display module 300 after assembly.

[0040] Furthermore, in order to achieve heat dissipation, several blades 230 are distributed at intervals on the outer periphery of the fan blade 200. When the drive module 400 drives the fan blade 200 to rotate, the fan blade 200 will rotate along with several blades 230. The rotation of the blades 230 achieves heat dissipation for the electronic equipment. Since the outer side of the sleeve shaft 210 of the fan blade 200 is connected to the inner ring of the first bearing 120, and the inner side of the sleeve shaft 210 is connected to the outer ring of the second bearing 220, the fan blade 200 can rotate more smoothly, thereby ensuring the rotation effect of the fan blade 200.

[0041] Please see Figure 1 and Figure 2 To prevent axial displacement of the fan blade 200 during rotation, this embodiment includes a first elastic element 500 between the inner side of the mounting cylinder 110 and the outer side of the sleeve shaft 210. The two ends of the first elastic element 500 abut against the fan blade 200 and the first bearing 120, respectively. Simultaneously, a second elastic element 600 is provided between the inner side of the sleeve shaft 210 and the outer side of the fixed shaft 310. The two ends of the second elastic element 600 abut against the display module 300 and the second bearing 220, respectively. By limiting the movement of both sides of the fan blade 200 using the first elastic element 500 and the second elastic element 600, axial displacement of the fan blade 200 during rotation can be effectively prevented, ensuring normal and reasonable rotation of the fan blade 200. Both the first elastic element 500 and the second elastic element 600 can be springs.

[0042] Please see Figure 2 and Figure 6In order to drive the fan blade 200 to rotate, the drive module 400 in this embodiment includes a PCB board 410, a stator 420 and a rotor 430. The stator 420 is sleeved on the outside of the mounting cylinder 100 and electrically connected to the PCB board 410. The rotor 430 is connected to the fan blade 200 and rotates in cooperation with the stator 410. Through the cooperation between the PCB board 410, the stator 420 and the rotor 430, the conversion of electrical energy to mechanical energy is realized, thereby ensuring the drive of the fan blade 200. The structure of this drive module 400 is existing technology, so it will not be described in detail here.

[0043] Please see Figure 2 In this embodiment, the display module 300 is a display screen, and the display module 300 is electrically connected to the PCB board 410 in the drive module 400 through a cable. The PCB board 410 controls the display module 300 so that the display module 300 can display patterns or text. Since the display module 300 can remain stationary when the fan blade 200 rotates, the brand logo, or any other patterns, text, or even images displayed by the display module 300 can be fully displayed without being affected by the rotation of the fan blade 200.

[0044] Furthermore, when routing the wires connecting the display module 300 to the PCB board 410, they can be laid along the inside of the hollow fixed shaft 310, thus hiding the wires and preventing them from affecting other components, thereby making the overall layout of the cooling fan reasonable. At the same time, after the wire routing is completed, a cover 130 can be placed on the bottom surface of the mounting cylinder 110 to encapsulate the bottom surface of the mounting cylinder 110, thereby making the cooling fan a whole and effectively preventing the entry of dust and debris, thereby improving the service life of the cooling fan.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description; however, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model; furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A hollow structure cooling fan, characterized in that, include: A frame, wherein a cylindrical mounting cylinder is provided in the middle of the frame, and a first bearing is provided inside the mounting cylinder; A fan blade, wherein a hollow sleeve shaft is provided in the middle of the fan blade, the sleeve shaft is inserted into the mounting cylinder, its outer wall is connected to the inner ring of the first bearing, and a second bearing is provided in the sleeve shaft; A display module has a hollow fixed shaft in the middle, which is inserted into a sleeve shaft. Its outer wall is connected to the inner ring of the second bearing, and the insertion end of the fixed shaft passes through the bottom of the mounting cylinder for limiting connection. A drive module is located on the outside of the mounting cylinder and cooperates with the fan blades. When the drive module drives the fan blades to rotate, the display module forms a stationary state through the fixed shaft.

2. The hollow structure cooling fan according to claim 1, characterized in that: A first elastic element is provided between the inner side of the mounting cylinder and the outer side of the sleeve shaft, and the two ends of the first elastic element abut against the fan blade and the first bearing, respectively.

3. The hollow structure cooling fan according to claim 2, characterized in that: A second elastic element is provided between the inner side of the sleeve shaft and the outer side of the fixed shaft, and the two ends of the second elastic element abut against the display module and the second bearing, respectively.

4. The hollow structure cooling fan according to claim 1, characterized in that: The insertion end of the fixed shaft has a first cut surface, and the through hole at the bottom of the mounting cylinder has a second cut surface corresponding to the first cut surface.

5. The hollow structure cooling fan according to claim 1, characterized in that: The insertion end of the fixed shaft is provided with a groove. When the insertion end of the fixed shaft passes through the bottom of the mounting cylinder, it can be engaged into the groove by a retaining ring to limit the connection between the fixed shaft and the mounting cylinder.

6. The hollow structure cooling fan according to claim 1, characterized in that: The display module is a display screen, which can be electrically connected to the drive module via wires to display patterns or text, and the wires can be laid along the inside of the fixed axis.

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