| 发明名称 |
PROTECTIVE DEVICE |
| 摘要 |
The present invention proposes a protection device which has a large rated voltage and a large rated current, which is capable of sufficiently suppressing arc generation during activation, and which is also capable of providing suitable protection against overcurrent due to short circuiting or the like of a main circuit. The protection device of the present invention includes (i) a protection element which includes a first thermal fuse and a resistor, and in which the resistor generates heat as a result of current passing through the resistor when there are abnormalities, and the first thermal fuse is activated due to this heat and interrupts the current, (ii) a PTC element and a second thermal fuse which are electrically connected in parallel to the first thermal fuse and which are electrically connected in series to each other, and (iii) a current fuse which is electrically connected in series to the first thermal fuse. |
| 申请公布号 |
US2017076900(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201515124051 |
申请日期 |
2015.03.04 |
| 申请人 |
c/o Littelfuse Japan G.K. |
发明人 |
IWAI Masaaki;YOKOTA Takayuki |
| 分类号 |
H01H85/02;H01H85/36;H02H5/04;H01H37/34 |
主分类号 |
H01H85/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A protection device comprising:
(i) a protection element which includes a first thermal fuse and a resistor, and in which the resistor generates heat as a result of current passing through the resistor when there are abnormalities, and the first thermal fuse is activated due to this heat and interrupts the current; (ii) a PTC element and a second thermal fuse which are electrically connected in parallel to the first thermal fuse and which are electrically connected in series to each other; and (iii) a current fuse which is electrically connected in series to the first thermal fuse. |
| 地址 |
Tokyo JP |
