Ultrathin fan shaft

By designing ultra-thin fan shafts, the problem of heat dissipation needs in small electronic products is solved, and the ultra-thin design suitable for small electronic products is achieved, and the silent effect is improved by welding and connecting the fan blades.

CN223035330UActive Publication Date: 2025-06-27WENZHOU SHENYI SHAFT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422407056.0
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 fan shaft cannot meet the heat dissipation needs of small electronic products, and the original fan shaft is long and difficult to use in small electronic products.

Method used

An ultra-thin fan shaft is designed, including a shaft body, a wear-resistant spherical surface, a welded surface at one end and an annular slot at the other end. The length of the shaft body is less than twice the diameter, and a coating is provided on the part other than the welded surface.

Benefits of technology

It realizes the ultra-thin design of the fan shaft, suitable for small electronic products, and connects the fan blades through welding, reducing vibration and improving the silent effect of the fan.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223035330U_ABST
    Figure CN223035330U_ABST
Patent Text Reader

Abstract

The utility model relates to an ultrathin fan shaft which comprises a shaft body, one end of the shaft body is provided with a wear-resisting spherical surface, the other end of the shaft body is provided with a welding surface, the cylindrical surface of the shaft body is provided with an annular clamping groove, and the length of the shaft body is smaller than twice the diameter of the shaft body. The length of the fan shaft is only within two times of the diameter of the shaft body, the length is far smaller than that of a common fan shaft, the shaft is suitable for some small electronic products, the fan blades are welded through the smooth welding face without a coating, the fan blades do not need to be arranged on the shaft in a sleeving mode, the outer end face, for fixing the fan blades, of the shaft body is reduced, the length of the shaft is further reduced, and cost is reduced. The fan blades are connected in a welded mode, vibration cannot occur between the fan blades and the shaft, and the mute effect of the fan is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Since the power of electronic components in electronic products is increasing, their heat generation also increases rapidly. Therefore, these products all require a fan for heat dissipation. However, with the iterative development of electronic products, their volume is getting smaller and smaller. Therefore, it is required that the volume of the cooling fan is also smaller. The original fan shaft cannot meet the use in these small-volume electronic products. Summary of the Invention

[0003] In view of the above deficiencies, the utility model provides an ultra-thin fan shaft with a small volume and a short length.

[0004] To achieve the above objectives, the utility model adopts an ultra-thin fan shaft, which includes a shaft body. One end of the shaft body is provided with a wear-resistant spherical surface, and the other end is provided with a welding surface. An annular groove is provided on the cylindrical surface of the shaft body, and the length of the shaft body is less than twice the diameter of the shaft body.

[0005] The utility model is further configured such that the shaft body is provided with a coating on all parts except the welding surface.

[0006] The beneficial effect of the utility model is that the length of the ultra-thin fan shaft is only within twice the diameter of the shaft body, and the length is much smaller than that of a general fan shaft, making this shaft suitable for some small electronic products. Moreover, by welding the fan blade through a smooth and uncoated welding surface, it is not necessary to sleeved the fan blade on the shaft, reducing the outer end surface for fixing the fan blade on the shaft body, further reducing the length of the shaft. Using welding to connect the fan blade, there will be no vibration between the fan blade and the shaft, improving the mute effect of the fan. Brief Description of the Drawings

[0007] Figure 1 is a schematic diagram of a specific embodiment of the utility model. Detailed Description of the Invention

[0008] As Figure 1 shown, a specific embodiment of the utility model is an ultra-thin fan shaft, which includes a shaft body 1. One end of the shaft body 1 is provided with a wear-resistant spherical surface 11, and the other end is provided with a welding surface 12. The welding surface 12 is used for welding the fan blade of the fan. An annular groove 13 is provided on the cylindrical surface of the shaft body 1. The length of the shaft body 1 is less than twice the diameter of the shaft body 1. The shaft body 1 is provided with a coating 2 on all parts except the welding surface 12.

[0009] The above specific embodiment is a preferred embodiment of the utility model, and other obvious changes are also within the protection scope of the claims.

Claims

1. An ultra-thin fan shaft, comprising a shaft body, characterized in that: One end of the shaft body is provided with a wear-resistant spherical surface, and the other end is provided with a welding surface. An annular groove is provided on the cylindrical surface of the shaft body, and the length of the shaft body is less than twice the diameter of the shaft body.

2. The ultra-thin fan shaft according to claim 1, characterized in that: The shaft body is provided with a coating on all parts except the welding surface.