Miniature fan shaft

By designing annular card slots and fan blade injection molding slots on the micro fan shaft, the existing micro fan shafts are solved, and the stable installation and efficient heat dissipation of the fan blades are achieved.

CN223035331UActive Publication Date: 2025-06-27WENZHOU SHENYI SHAFT CO LTD
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Patent Information

Application Number
CN202422409502.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-06-27
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The existing micro fan shafts have inconveniences in installation and miniaturization, resulting in low heat dissipation efficiency and large volume.

Method used

A miniature fan shaft is designed, with an annular chuck and a fan blade injection molding groove on the shaft body. A oblique embossment and a snap ring are provided on the fan blade injection molding groove. The fan blade is fixed through the injection molding groove to avoid screw installation.

Benefits of technology

The stable installation of the fan blade is achieved, the silent effect and heat dissipation efficiency of the fan are improved, and the overall volume is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a miniature fan shaft which comprises a shaft body, an annular clamping groove and a fan blade injection molding groove are arranged on the cylindrical surface of the shaft body, inclined embossing is arranged on the fan blade injection molding groove, and the fan blade injection molding groove is close to one end of the shaft body. And sliding is avoided, stability is high, and the mute effect of the fan is good.
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Description

Technical Field

[0001] The utility model relates to a micro shaft, in particular to a micro fan shaft. Background Art

[0002] The micro fan shaft is a rotating shaft for installing a fan in electronic products such as notebooks. Since the power of electronic components in electronic products is increasing, the heat generated by them also rapidly increases. Therefore, a faster fan is needed for heat dissipation. The existing installation between the fan and the fan shaft is inconvenient and not conducive to miniaturization of the volume. Summary of the Invention

[0003] In view of the above deficiencies, the utility model provides a micro fan shaft with a small volume and stable and convenient installation of fan blades.

[0004] To achieve the above objectives, the utility model adopts a micro fan shaft, including a shaft body. An annular slot and a fan blade injection molding slot are provided on the cylindrical surface of the shaft body. The fan blade injection molding slot is provided with oblique embossing, and the fan blade injection molding slot is close to one end of the shaft body.

[0005] The utility model is further provided that one end of the shaft body is a wear-resistant spherical surface, the other end is a flat surface, the fan blade injection molding slot is close to the flat surface end, and a protruding ring is formed between the fan blade injection molding slot and the flat surface.

[0006] The utility model is further provided that the diameter at the annular slot is smaller than the diameter at the fan blade injection molding slot.

[0007] The beneficial effect of the utility model is that the micro fan shaft uses a fan blade injection molding slot to fix the fan blade, does not require screws for fixing, is convenient for installation, will not slip, has high stability, and has a good silent effect for the fan. Brief Description of the Drawings

[0008] Figure 1 It is a schematic diagram of a specific embodiment of the utility model. Detailed Description of the Embodiment

[0009] As Figure 1 shown, a specific embodiment of the utility model is a micro fan shaft, including a shaft body 1. One end of the shaft body 1 is a wear-resistant spherical surface 11, the other end is a flat surface 12. An annular slot 13 and a fan blade injection molding slot 14 are provided on the cylindrical surface of the shaft body 1. The diameter at the annular slot 13 is smaller than the diameter at the fan blade injection molding slot 14. The fan blade injection molding slot 14 is provided with oblique embossing 15. The fan blade injection molding slot 14 is close to the flat surface 12 end, and a protruding ring 16 is formed between the fan blade injection molding slot 14 and the flat surface 12.

[0010] The above is a preferred embodiment of the utility model in the specific embodiment, and other obvious changes are also within the protection scope of the claims.

Claims

1. A micro fan shaft, comprising a shaft body, characterized in that: An annular clamping groove and a fan blade injection molding groove are arranged on the cylindrical surface of the shaft body, and an oblique embossing is arranged on the fan blade injection molding groove, and the fan blade injection molding groove is close to one end of the shaft body.

2. The micro fan shaft according to claim 1, characterized in that: One end of the shaft body is a wear-resistant spherical surface, and the other end is a plane. The fan blade injection molding groove is close to one end of the plane, and a protruding circle of clamping ring is formed between the fan blade injection molding groove and the plane.

3. The micro fan shaft according to claim 1 or 2, characterized in that: The diameter of the annular groove is smaller than the diameter of the fan blade injection groove.