| 发明名称 | Electronic apparatus, a method for estimating a break, and a method for estimating a fatigue life | ||
| 摘要 | According to one embodiment, a first joint unit and a second joint unit are disposed with space on a heat radiation substrate. A joint area of the second joint unit is larger than that of the first joint unit. An insulated substrate is disposed on the first joint unit and the second joint unit. A corner region of the insulated substrate contacts the first joint unit. A first sensor to measure an acceleration of vibration applied to the insulated substrate is disposed thereon. The first sensor is more adjacent to the first joint unit than the second joint unit. A response spectrum of the acceleration is calculated. An extension status of joint failure of the first joint unit is decided by comparing a frequency of a maximum peak of the response spectrum with a reference frequency. A break of the second joint unit is estimated based on the extension status | ||
| 申请公布号 | US9091610(B2) | 申请公布日期 | 2015.07.28 |
| 申请号 | US201213722087 | 申请日期 | 2012.12.20 |
| 申请人 | Kabushiki Kaisha Toshiba | 发明人 | Hisakuni Yousuke;Omori Takahiro;Hirohata Kenji |
| 分类号 | G01M7/00;G01M7/02;G01R31/04;G01R31/28 | 主分类号 | G01M7/00 |
| 代理机构 | Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. | 代理人 | Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. |
| 主权项 | 1. An electronic apparatus comprising: a heat radiation substrate; a first joint unit disposed on the heat radiation substrate; a second joint unit disposed on the heat radiation substrate by spacing from the first joint unit, a joint area of the second joint unit being larger than a joint area of the first joint unit; an insulated substrate disposed on the first joint unit and the second joint unit, a corner region of the insulated substrate contacting with the first joint unit; a first sensor to measure an acceleration of vibration applied to the insulated substrate, disposed on the insulated substrate, the first sensor being more adjacent to the first joint unit than the second joint unit; a first calculation unit configured to calculate a response spectrum of the acceleration; a decision unit configured to decide an extension status of joint failure of the first joint unit by comparing a frequency of a maximum peak of the response spectrum with a reference frequency; and an estimation unit configured to estimate a break of the second joint unit based on the extension status. | ||
| 地址 | Tokyo JP | ||