发明授权
- 专利标题： Load circuit disconnection detector
- 专利标题（中）： 负载断路检测器
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申请号： US13991647申请日： 2011-11-29
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公开(公告)号： US09083179B2公开(公告)日： 2015-07-14
- 发明人: Yoshinori Ikuta , Akinori Maruyama , Yoshihide Nakamura , Keisuke Ueta
- 申请人： Yoshinori Ikuta , Akinori Maruyama , Yoshihide Nakamura , Keisuke Ueta
- 申请人地址： JP Tokyo
- 专利权人： YAZAKI CORPORATION
- 当前专利权人： YAZAKI CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Mots Law, PLLC
- 代理商 Marvin A. Motsenbocker
- 优先权： JP2010-274328 20101209
- 国际申请： PCT/JP2011/006653 WO 20111129
- 国际公布： WO2012/077297 WO 20120614
- 主分类号： G08B17/06
- IPC分类号： G08B17/06 ; H02H3/08 ; H02H6/00 ; G01R31/04
摘要：
A load circuit disconnection detector includes: a current sensor (16) for detecting current flowing through a wire (W1) of a load circuit; and a protective device (100) for estimating temperature of the wire (W1) based on the detected current and forcibly turning off a semiconductor switch (Q1) if the estimated temperature of the wire reaches threshold temperature. The load circuit disconnection detector determines that there is a connection failure in the load circuit if a temperature increase calculated by a temperature calculation unit (24) is zero even a predetermined time (P1) after the semiconductor switch (Q1) is turned on.
公开/授权文献
- US20130249696A1 LOAD CIRCUIT DISCONNECTION DETECTOR 公开/授权日：2013-09-26
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