Bearing assembly, motor, fan and electronic equipment
By improving the sealing gap and concave-convex surface structure of the bearing assembly, the contradiction between sealing performance and miniaturization and thinness was resolved, achieving effective sealing of the lubricating medium and impact resistance, and extending the service life of the bearing assembly.
CN122092575APending Publication Date: 2026-05-26HUAWEI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2024-11-25
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing bearing assemblies are difficult to miniaturize and reduce in weight while meeting sealing requirements, and their sealing performance is poor, leading to lubricant leakage and wear problems.
Method used
By designing sealing gaps and uneven surface structures, a gas sealing layer is formed using capillary effect and turbulence, enhancing the sealing performance of the lubricating medium, preventing leakage, and improving impact resistance.
Benefits of technology
This achieves miniaturization and thinning of the bearing assembly without changing the sealing performance, thus extending its service life and improving its reliability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122092575A_ABST
Abstract
This application provides a bearing assembly, a motor, a fan, and an electronic device. The bearing assembly includes a rotating component and a stationary component. The rotating component includes a shaft, a first thrust portion, and an extension portion. The first thrust portion is connected to the shaft and extends outward. The extension portion is connected to the first thrust portion and extends axially, forming first and second surfaces that are radially opposite to each other, and a third surface that is axially opposite. The stationary component includes a bearing portion. The bearing portion is sleeved on the outer periphery of the shaft. The first surface and the bearing portion are opposite to each other, forming a gradually increasing sealing gap. The sealing surfaces on both sides of the sealing gap are configured to gradually slope towards a first centerline. And / or, the stationary component also includes a bushing, the surface of the bushing opposite to the second surface and / or at least a portion of the second surface being configured as a concave-convex surface. By configuring the bearing assembly with such a structure, the sealing performance under the same size can be improved, which is beneficial for the miniaturization of the bearing assembly.
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