摘要
空调室外机轴流风叶为运动部件,长期处于高温或低温环境中,要求叶片拉伸和弯曲强度高、耐热性好、线膨胀系数低,才能保证整机性能稳定。行业内普遍采用玻纤增强AS材料,但玻纤增强AS的脆性较大,性能提升幅度有限,使用橡胶增韧的改善空间有限,且在总装生产、整机转运时易导致叶片断裂。从材料力学性能、单体型式试验、固有频率、整机风量、噪音、振动及长期运行可靠性等方面论证了复合增强PP替代玻纤增强AS材料在小直径低压轴流风叶上应用的可行性。研究表明,规格为φ320×118的轴流风叶使用复合增强PP替代AS-GF20材料,叶片重量下降41克/个,约14.2%,且风叶的单体和整机的性能、可靠性等各项指标均达到量产要求。
Axial-flow blade of outdoor air conditioner is a moving part,which is in high or low temperature environment for a long time.It is required that the blade should be with high stretched strength,high bending strength,good heat resistance,and low linear expansion coefficient,so as to ensure the stability of the air conditioner.Glass fiber reinforced AS materials are widely used in industry,but glass fiber reinforced AS is brittle,its performance and the improvement space of rubber toughening is limited,and it is easy to cause blade fracture in assembly production and transshipment of the air conditioner.Demonstrated the feasibility of using composite reinforced PP instead of glass fiber reinforced AS material in small diameter and low pressure Axial-flow blades from the aspects of material mechanical properties,monomer type test,natural frequency,air volume,noise,vibration and long-term operation reliability.The results show that the composite reinforced PP is used instead of ASGF20 in the Axial-flow blade with the specification ofφ320×118.The weight of the blade fell by 14.2%,about 41 grams per blade.The performance and reliability of the blade achieve quality requirements of bulk-production.
作者
周伟峰
周孝华
熊军
徐志亮
董龙
陈民华
ZHOU Weifeng;ZHOU Xiaohua;XIONG Jun;XU Zhiliang;DONG Long;CHEN Minhua(TCL Air Conditioner(ZhongShan)Co.,Ltd.,Zhongshan 528400)
出处
《家电科技》
2020年第4期66-70,共5页
Journal of Appliance Science & Technology
关键词
空调
玻纤增强AS
复合增强PP
轴流风叶
轻量化
Air conditioning
Glass fiber reinforced AS
Compound reinforced PP
Axial-flow fan
Light weight
