公开(公告)号：US20080258858A1

公开(公告)日：2008-10-23

申请号：US11901659

申请日：2007-09-18

Applicant: Danfeng Sun

Inventor： Danfeng Sun

IPC: H01C7/10 ,  H01C17/00 ,  H01C17/02

CPC classification number: H01C7/126 ,  H01C1/144 ,  H01C7/102 ,  Y10T29/49082 ,  Y10T29/49087

Abstract: A non-burnable varistor, comprises a base slice having two opposite surfaces, a first elicit pole electrically connected to one surface of the said base slice, a second elicit pole electrically connected to the other surface of the said base slice. Outside each of the said two opposite surfaces of the base slice a low-melting-point metal conductor layer is respectively situated, which is melted at the temperature of 155˜450° C., and the two layers are not electrically connected by any good conductor. When the non-burnable varistor base is struck and burned through to form an arc, the low-melting-point metal are melted and go into the arc in the form of gas or liquid, to depress the resistance of the arc nearly to a short estate. So the arc current can be cut off by the over-loading security mechanism as over-current protective fuses or breakers, before the coat of the non-burnable varistor caught on fire, to prevent the occurrence of fire accident.

Abstract translation: 不可燃烧变压器包括具有两个相对表面的基片，电连接到所述基片的一个表面的第一引出极，电连接到所述基片的另一表面的第二引出极。 在基片的所述两个相对表面的每一个之外，分别设置低熔点金属导体层，其在155〜450℃的温度下熔化，并且两层不通过任何良好的电连接 导体。 当不可燃压敏电阻基体被撞击并燃烧以形成电弧时，低熔点金属熔化并以气体或液体的形式进入电弧，以将电弧的电阻降至几乎短 房地产。 因此，在不可燃变压器外壳发生火灾之前，可以通过过载安全机制将过电流保护熔断器或断路器切断，防止发生火灾事故。