发明名称 |
Contact welding detecting device for relay |
摘要 |
<p>A contact welding detecting device includes: a relay (R) including a first contact (a) for permitting and breaking transmission of a first DC input potential to a first output and a second contact (b) for permitting and breaking transmission of a second DC input potential; a relay open/close control unit that simultaneously controls to open and close the first and second contacts when welding of at least one of the first and second contacts is detected; a first potential difference detection unit that detects a potential difference between a first point at an input side of the first contact and a second point at an output side of the second contact; and a second potential difference detection unit that detects a potential difference between a third point at an output side of the first contact and a fourth point at an input side of the second contact.</p> |
申请公布号 |
EP1744339(A1) |
申请公布日期 |
2007.01.17 |
申请号 |
EP20060117042 |
申请日期 |
2006.07.12 |
申请人 |
JTEKT CORPORATION |
发明人 |
KAWAMURA, MAKOTO;NIWA, KUNIYUKI;KATO, SUTEMARO |
分类号 |
H01H47/00;G05B9/02 |
主分类号 |
H01H47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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