Hollow top column fixing structure of cooling fan

Abstract

The hollow top pillar fixing structure comprises fan blades, an upper cover and a base, matched buckles are arranged on the two sides of the upper cover and the two sides of the base, an air outlet is formed in the lower end of the upper cover and the lower end of the base, a hollow top pillar is arranged at the position of the air outlet, and the upper end and the lower end of the hollow top pillar are connected with the upper cover and the base respectively. The fan has the advantages that the structure that the hollow top column is connected with the upper cover and the base of the fan in a clamped mode is adopted to replace a traditional screw locking structure, the size of a fan frame is reduced, system assembly is facilitated, the fan has a larger space, the design position of the hollow top column is accurate, and it is guaranteed that the air outlet amount and the air pressure are not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling fans, in particular to a fixing structure of a hollow top column of a cooling fan. Background Art

[0002] A cooling fan is provided inside an electronic device, generally used for a radiator or a chassis, and the purpose of heat dissipation is achieved by generating an air flow through the operation of the fan.

[0003] The structure of the fan housing generally adopts the method of assembling after locking the cover body with screws. However, this structure requires reserved holes in the fan housing and locking with screws, resulting in an increase in the overall size of the fan housing and occupying the assembly space. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing structure of a hollow top column of a cooling fan to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fixing structure of a hollow top column of a cooling fan provided by the utility model includes a fan blade, an upper cover and a base. Matching buckles are provided on both sides of the upper cover and the base. An air outlet is formed at the lower ends of the upper cover and the base. A hollow top column is provided at the air outlet, and the upper and lower ends of the hollow top column are respectively connected to the upper cover and the base.

[0007] Further, the hollow top column includes a hollow column, an upper edge and a lower edge, and the hollow column, the upper edge and the lower edge are integrally formed structures.

[0008] Further, steps are provided at the connections between the upper and lower ends of the hollow column and the upper edge and the lower edge respectively.

[0009] Further, a positioning hole is provided on the upper cover, and the positioning hole is in interference fit with the upper edge.

[0010] Further, the lower edge includes an insertion ring, and a plurality of equally spaced slots are provided on the insertion ring.

[0011] Further, an insertion port is provided at the position of the base close to the hollow top column, and the insertion port is connected to the insertion ring in a matching manner.

[0012] Further, the hollow top column is located at the air outlet, and the hollow top column is mutually clamped with the upper cover and the base.

[0013] Beneficial effects: A fixed structure for the hollow top column of a cooling fan adopts a structure in which the hollow top column is clamped with the fan upper cover and the base, replacing the traditional structure using screw locking, achieving a reduction in the volume of the fan housing, facilitating system assembly, having more space, and the design position of the hollow top column is accurate, ensuring that the air volume and air pressure are not affected. Brief Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is an exploded schematic diagram of the partial structure of the present invention;

[0016] Figure 3 It is a cross-sectional view of the partial structure of the present invention.

[0017] Reference Signs

[0018] 1 - Fan blade, 2 - Upper cover, 21 -, 3 - Base, 4 - Snap, 5 - Air outlet, 6 - Hollow top column, 61 - Hollow column, 62 - Upper edge, 63 - Lower edge, 631 - Insertion ring, 632 - Card slot, 7 - Insertion port. Detailed Description of the Invention

[0019] The following are specific embodiments of the present invention in combination with the drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0020] Embodiment

[0021] As Figures 1-3 shown, a fixed structure for the hollow top column of a cooling fan includes a fan blade 1, an upper cover 2 and a base 3. Snap 4s that match each other are provided on both sides of the upper cover 2 and the base 3. An air outlet 5 is formed at the lower ends of the upper cover 2 and the base 3. A hollow top column 6 is provided at the air outlet 5. The upper and lower ends of the hollow top column 6 are respectively connected to the upper cover 2 and the base 3.

[0022] The hollow top column 6 includes a hollow column 61, an upper edge 62 and a lower edge 63. The hollow column 61, the upper edge 62 and the lower edge 63 are an integrally formed structure. Steps are provided at the joints where the upper and lower ends of the hollow column 61 are respectively connected to the upper edge 62 and the lower edge 63. Both the upper edge 62 and the lower edge 63 are thin-walled cylinders. A positioning hole 21 is opened on the upper cover 2. The positioning hole 21 is in interference fit with the upper edge 62. The upper edge 62 is clamped into the positioning hole 21 to achieve clamping and fixing.

[0023] The lower edge 63 includes a socket ring 631, on which a plurality of equally spaced clamping grooves 632 are provided. At a position of the base 3 close to the hollow top column 6, a socket 7 is provided, and the socket 7 is matched and connected with the socket ring 631. The socket 7 is a profiling socket, which is mutually matched with the socket ring 631 and the clamping grooves 632 on the lower edge 63, and the diameter of the socket 7 is smaller than the diameter of the socket ring 631.

[0024] The hollow top column 6 is located at the air outlet 5, and the hollow top column 6 is clamped with the upper cover 2 and the base 3. By using the position of the air outlet 5, the volume of the fan housing is saved, and the air volume and air pressure are not affected, and the noise is reduced.

[0025] In the present utility model, the structure of clamping the hollow top column 6 with the fan upper cover 2 and the base 3 at the air outlet 5 is used to replace the traditional structure of using screws for locking, so as to realize the reduction of the volume of the fan housing, facilitate the system assembly, and have a larger space. Moreover, the design position of the hollow top column 6 is accurate to ensure that the air volume and air pressure are not affected.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fixed structure for a hollow top column of a cooling fan, comprising a fan blade (1), an upper cover (2) and a base (3), characterized in that: The upper cover (2) and both sides of the base (3) are provided with matching buckles (4). An air outlet (5) is formed at the lower ends of the upper cover (2) and the base (3). A hollow top column (6) is provided at the air outlet (5). The upper and lower ends of the hollow top column (6) are respectively connected to the upper cover (2) and the base (3).

2. The fixed structure of the hollow top column of a heat dissipation fan according to claim 1, characterized in that: The hollow top column (6) includes a hollow column (61), an upper edge (62) and a lower edge (63). The hollow column (61), the upper edge (62) and the lower edge (63) are of an integrally formed structure.

3. The fixed structure of the hollow top column of a heat dissipation fan according to claim 2, characterized in that: Steps are provided at the joints where the upper and lower ends of the hollow column (61) are respectively connected to the upper edge (62) and the lower edge (63).

4. The fixed structure of the hollow top column of a cooling fan according to claim 3, characterized in that: A positioning hole (21) is formed in the upper cover (2). The positioning hole (21) is in interference fit with the upper edge (62).

5. The fixed structure of the hollow top column of a heat dissipation fan according to claim 3, characterized in that: The lower edge (63) includes an insertion ring (631). A plurality of equally spaced card slots (632) are formed in the insertion ring (631).

6. The fixed structure of the hollow top column of a heat dissipation fan according to claim 5, characterized in that: A socket (7) is provided at a position on the base (3) close to the hollow top column (6). The socket (7) is connected to the insertion ring (631) in a matching manner.

7. The fixed structure of the hollow top column of a heat dissipation fan according to claim 1, characterized in that: The hollow top column (6) is located at the air outlet (5), and the hollow top column (6) is clamped with the upper cover (2) and the base (3).

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