Lawn mower and heat dissipation method thereof

By using a series-connected full-heat source air-cooled heat dissipation structure and atomization-assisted heat dissipation method, the problem of insufficient heat dissipation of the battery pack in handheld rear-motor lawn mowers is solved, achieving efficient heat dissipation of the battery pack, control unit and motor, improving the stability and battery life of the equipment, and making it compact and easy to operate.

CN122397475APending Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing handheld rear-motor lawn mowers only provide cooling airflow channels for the motor or PCB, neglecting the cooling requirements of the battery pack. This results in a high risk of battery pack overheating, severely shortening battery life and lifespan, posing safety hazards, and making them unsuitable for high-intensity, long-term operation.

Method used

A series-connected full-heat-source air-cooled heat dissipation structure is designed so that the cooling airflow flows sequentially through the battery pack, control unit and motor. By optimizing the airflow path to remove heat from the battery pack, and combined with the atomization-assisted heat dissipation structure, efficient heat dissipation of the battery pack, control unit and motor is achieved.

Benefits of technology

It achieves full-coverage heat dissipation for the battery pack, control unit, and motor, reducing the risk of overheating, extending component life, improving operational safety and endurance, and features a compact structure and easy operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种打草机及其散热方法,属于园林机械的技术领域。它的散热结构包括固定于打草机杆体后端的壳体、设于壳体一侧的电池包,电池包与壳体之间设有密封导风的过渡部,壳体内腔设有位于杆体下方的控制单元与杆体上方的驱动电机,形成依次流经电池包、控制单元、驱动电机的串联散热风路。本发明设计了用于打草机的热源全覆盖的散热风路,解决现有技术电池包无直接散热的缺陷,降低发热部件的过温风险,提升散热效率,延长整机寿命与续航,保障打草机长时间高强度作业的稳定性与安全性。
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