5402 IHジャー炊飯器の内釜開発(S72 CAE・最適化と設計,S72 CAE・最適化と設計)

概要

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Reliability technology has been developed for the IH carbon-jar rice cooker which cooks plump, tasty rice like a expert. Because this rice cooker's inner jar features a new carbon sintered material for superior thermal conductivity, the problem of ensuring the carbon jar's reliability has been an important issue. From the coupled thermoelastic analysis results, it was possible to estimate the thermal distribution at the carbon jar during rice cooking operations, and to evaluate in advance the stress produced. Moreover, static bending test and fatigue strength tests were performed to determine the variations of material characteristics variations. These tests indicated that the product offers an acceptable long-term reliability (99.9% or higher). Finally, the reliability was verified by actual product temperature measurements and testing under accelerated operating conditions, which contributes to efficient product development.
2006-09-15