| 发明名称 |
SOLDER DEGRADATION INFORMATION GENERATION APPARATUS |
| 摘要 |
A solder degradation information generation apparatus related to a motor drive circuit that includes a power supply, a converter, a smoothing capacitor, and an electric motor is disclosed. The solder degradation information generation apparatus includes a semiconductor element that forms an upper arm of the converter and is bonded to a substrate via a solder, the substrate being cooled by a coolant, a measuring unit configured to measure a temperature of the semiconductor element and a processing device that generates information indicating a degradation state of the solder based on a measurement result of the measuring unit that is obtained during a period in which the smoothing capacitor is charged. |
| 申请公布号 |
US2016146676(A1) |
申请公布日期 |
2016.05.26 |
| 申请号 |
US201514941115 |
申请日期 |
2015.11.13 |
| 申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
UKEGAWA Hiroshi;ONISHI Yukio |
| 分类号 |
G01K7/01 |
主分类号 |
G01K7/01 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A solder degradation information generation apparatus related to a motor drive circuit that includes a power supply, a converter, a smoothing capacitor, and an electric motor, the solder degradation information generation apparatus comprising:
a semiconductor element that forms an upper arm of the converter and is bonded to a substrate via a solder, the substrate being cooled by a coolant; a measuring unit configured to measure a temperature of the semiconductor element; and a processing device that generates information indicating a degradation state of the solder based on a measurement result of the measuring unit that is obtained during a period in which the smoothing capacitor is charged. |
| 地址 |
Toyota-shi JP |
