A spoke stress-dispersing type impact-resistant electric vehicle wheel hub

By introducing air blowing and exhaust structures into the wheel hub of electric vehicles, combined with the transmission structure, active heat dissipation is achieved, solving the heat dissipation problem of electric vehicle wheel hubs in high-temperature environments, improving heat dissipation efficiency, and reducing mechanical deformation and braking performance degradation.

CN224447341UActive Publication Date: 2026-07-03NANTONG YUMA MECHANICAL & ELECTRICAL MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG YUMA MECHANICAL & ELECTRICAL MANUFACTURING CO LTD
Filing Date
2025-11-17
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing passive cooling methods for electric vehicle wheel hubs are inefficient. Especially during long-term braking, high-temperature environments, or low-speed driving, the braking components are prone to thermal fade, making it difficult to effectively solve the heat dissipation problem.

Method used

A spoke stress-dispersing impact-resistant electric vehicle wheel hub was designed. Through the combination of air blowing and exhaust structures, active heat dissipation is achieved using the transmission structure. The hub includes components such as nozzles, piston cylinders, plug plates, plug rods, ball bearings, and check valves, forming an efficient airflow circulation to ensure heat dissipation efficiency and structural stability.

Benefits of technology

It improves heat dissipation efficiency, reduces wheel hub deformation and braking performance degradation caused by high temperatures, and ensures uniform stress and stable operation of mechanical components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a spoke stress-dispersing impact-resistant electric vehicle wheel hub, belonging to the field of electric vehicle wheel hub technology. It includes an electric vehicle wheel hub body and a protective cover detachably connected to the outside of the wheel hub body. The protective cover has an air-blowing structure extending into it for heat dissipation, and an exhaust structure that works in conjunction with the air-blowing structure. A transmission structure is provided outside both the air-blowing and exhaust structures. The air-blowing structure includes a nozzle fixedly connected to the bottom of the protective cover. This spoke stress-dispersing impact-resistant electric vehicle wheel hub, through a connecting shaft rotating with the wheel hub body, drives a swashplate to rotate, pushing a first stopper plate to slide up and down reciprocally. Air is drawn in and blown out through the nozzle in conjunction with a return spring. Simultaneously, a fixed disc rotates, and a gravity block pulls a sliding sleeve up and down, pushing a second stopper plate to expel hot air, improving heat dissipation efficiency and reducing wheel hub deformation and braking performance degradation caused by high temperatures.
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