一种矿用永磁电机寿命导向参数设计方法、装置、电子设备及介质

By establishing constraints on the thermal resistance degradation caused by dust deposition, the coordinated optimization design of protection parameters and heat dissipation parameters for mining permanent magnet motors was achieved, solving the problem of design fragmentation in existing technologies and improving the rationality and reliability of the life design of mining permanent magnet motors in dusty environments.

CN122113315BActive Publication Date: 2026-07-17NORTHWESTERN POLYTECHNICAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the design of permanent magnet motors for mining, the protection design and heat dissipation design are separated and lack quantitative correlation. It is impossible to predict the long-term operating life in dusty environments, and the design parameters are mostly based on experience and lack foresight.

Method used

By establishing constraints on thermal resistance degradation due to dust deposition, a quantitative correspondence is established between environmental parameters of mining dust, equivalent leakage flow rate, dust deposition amount, thermal resistance degradation amount and lifespan, so as to achieve synergistic optimization design of protection parameters and heat dissipation parameters, including reverse design of sealing gap and heat dissipation area.

Benefits of technology

This has improved the design rationality and operational reliability of permanent magnet motors for mining in dusty mining environments, enabling quantitative prediction and parameter optimization of lifespan targets.

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Abstract

本发明公开了一种矿用永磁电机寿命导向参数设计方法、装置、电子设备及介质,属于永磁电机防护与寿命设计技术领域。该方法首先获取矿用永磁电机的运行参数、结构参数及矿用粉尘环境参数,并确定寿命目标判据;然后建立等效泄漏流量模型、粉尘沉积量模型及热阻劣化模型,根据粉尘沉积导致的热阻变化计算定子绕组绝缘区域的温升参数和工作温度参数;进一步建立以绝缘寿命为主、轴承寿命为辅的寿命衰减模型,得到综合寿命指标;最后依据寿命目标判据,对密封间隙、等效泄漏流量和最小散热面积进行约束设计,并输出满足寿命要求的矿用永磁电机参数设计结果。本发明能够提高矿用永磁电机在粉尘环境下的运行可靠性和寿命设计合理性。
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