家电科技 ›› 2025, Vol. 0 ›› Issue (zk): 263-266.doi: 10.19784/j.cnki.issn1672-0172.2025.99.055

• 第二部分 制冷与空调 • 上一篇    下一篇

屋顶机整机电加热可靠性研究

赵帅帅, 刘兴山, 张云聪, 张振超, 胡英绪, 蒋贤国   

  1. 海信空调有限公司 山东青岛 266100
  • 发布日期:2025-12-30
  • 作者简介:赵帅帅,硕士学位。研究方向:主要从事轻商空调研究。地址:山东省青岛市崂山区松岭路399号海信研发中心。E-mail:zhaoshuaishuai1@hisense.com。

Research on the heating reliability of rooftop air conditioner

ZHAO Shuaishuai, LIU Xingshan, ZHANG Yuncong, ZHANG Zhenchao, HU Yingxu, JIANG Xianguo   

  1. Hisense Air Conditioning Co., Ltd. Qingdao 266100
  • Published:2025-12-30

摘要: 针对出口北美的屋顶机电加热需求,依据UL 60335-2-40-2022《家用和类似用途的电器的安全 热泵、空调器和除湿机的特殊要求》标准要求,对电加热可靠性进行了研究。基于屋顶机电加热结构特点,建立电加热传热理论分析模型,得到电加热丝表面温度与风速耦合关系,采用仿真确定风场分布,试验结果验证了理论模型及仿真的可靠性,为屋顶机电加热安装设计提供理论依据与工程指导。

关键词: 屋顶机, 电加热, 温升, 风速

Abstract: The reliability of electric heating was studied in accordance with the requirements of the UL 60335-2-40-2022 “Safety of Household and Similar Appliances Special Requirements for Heat Pumps, Air Conditioners and Dehumidifiers” standard for rooftop electromechanical heating exported to North America. Based on the characteristics of the roof electromechanical heating structure, the theoretical analysis model of electric heating heat transfer is established, the coupling relationship between the surface temperature and wind speed of the electric heating wire is obtained, and the wind field distribution is determined by simulation, and the test results verify the reliability of the theoretical model and simulation, which provides theoretical basis and engineering guidance for the installation design of roof electromechanical heating.

Key words: Roof unit, Electric heating, Temperature rise, Wind speed

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