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http://dx.doi.org/10.5762/KAIS.2018.19.5.672

A Study on Analysis and Design Improvement of Opening Angle of Duct Cap of Ice Dispenser for Refrigerator  

Lee, Boo-Youn (Dept. of Mechanical & Automotive Engineering, Keimyung University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.5, 2018 , pp. 672-680 More about this Journal
Abstract
The opening angle of the duct cap assembly during the operation of a refrigerator ice dispenser was evaluated by transient structural analysis, and an improved design to maximize the opening angle was obtained. The opening angle of the existing design was found to be 78% of the upper limit. Several design modifications were proposed and analyzed to examine the effects of the design factors on the opening angle. As a result of the design modifications, the opening angle was improved by changing the lever material to a material with a high elastic modulus, moving the position of the support to the motor side, or increasing the lever shaft diameter. Considering the manufacturing cost of the new design, the design modification changing only the lever material was found to be the best because it does not require a change in the structure of the ice dispenser case. In conclusion, the opening angle can be improved by up to 95% of the upper limit value if the lever material is changed to an aluminum alloy. The methods and results presented in this study were found to be of great help in designing the duct cap assembly structure to facilitate the discharge of ice.
Keywords
Duct Cap; Transient Structural Analysis; Finite Element Analysis; Opening Angle; Refrigerator Ice Dispenser;
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