家电科技 ›› 2022, Vol. 0 ›› Issue (4): 20-25.doi: 10.19784/j.cnki.issn1672-0172.2022.04.002

• 论文 • 上一篇    下一篇

基于CFD技术的电饭煲噪声及散热优化应用研究

吴波   

  1. 广东美的制冷有限公司 广东佛山 528311
  • 出版日期:2022-08-01 发布日期:2022-08-18
  • 作者简介:吴波,男,(1992—)。研究方向:家电风机风道。地址:广东省佛山市顺德区北滘镇临港路美的制冷研究院。E-mail:408009699@qq.com。

Application research on noise and heat dissipation optimization of electric rice cooker based on CFD technology

WU Bo   

  1. Guangdong Midea refrigeration equipment Co., Ltd. Foshan 528311
  • Online:2022-08-01 Published:2022-08-18

摘要: 由于近年来国内外电饭煲市场主推大火力加热、米粒翻滚等概念,电饭煲加热功率不断增大,电饭煲内部的元器件发热量也越来越高,电饭煲的煮饭过程中的风扇噪声也逐步提升,致使风扇噪声投诉成为了市场上电饭煲的热点投诉问题。采用CFD流体仿真技术对现有电饭煲的内部流场分析,利用流体仿真计算模型与实验模型相互验证,对电饭煲的进气格栅结构、轴流风机安装结构进行全新的优化设计,采用圆形进气格栅、无框风扇结构设计,整机温升及噪声实验验证优化方案能够使得电饭煲整机噪声下降3 dB(A),且电子元器件温升相比于原机型不恶化。所设计的电饭煲静音风道系统可为后续电饭煲整机风扇噪声抑制及核心元器件温升改善起到一定的指导意义。

关键词: 电饭煲, 风道系统设计, 流场优化, 降噪, 降温

Abstract: Because the domestic and foreign rice cooker markets mainly push the concepts of high-power heating and rice rolling, the heating power of rice cookers is increasing, the calorific value of internal components of rice cookers is getting higher, and the fan noise in the cooking process of rice cookers is getting bigger and bigger. Fan noise complaints have also become a hot complaint issue of rice cookers in the market. CFD fluid simulation technology is used to analyze the internal flow field of existing rice cookers, the fluid simulation calculation model and the experimental model are mutually verified, and a brand-new optimization design is carried out for the air intake grille structure and axial fan installation structure of the rice cooker. What’s more, the circular air intake grille and frameless fan design structure are adopted. The temperature rise and noise experiment of the whole machine proves that the optimization plan can reduce the noise of the whole machine of the rice cooker by 3 dB(A) and the temperature rise of electronic components does not deteriorate compared with the original model. This design of mute air duct system of rice cooker can play a certain guiding significance for the subsequent noise design of the whole fan of rice cooker and the improvement of temperature rise of core components.

Key words: Rice cooker, Air duct design, Flow field optimization, Noise reduction, Cooling

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