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公开(公告)号：US20190122847A1
公开(公告)日：2019-04-25
申请号：US15924841
申请日：2018-03-19
摘要： A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.
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公开(公告)号：US09972991B2
公开(公告)日：2018-05-15
申请号：US15285807
申请日：2016-10-05
IPC分类号： H02H3/24 , H01H85/02 , H01H85/046 , H02H5/04
CPC分类号： H02H3/24 , H01H85/0047 , H01H85/0241 , H01H85/046 , H01H2085/0283 , H01H2207/008 , H01H2231/002 , H02H3/05 , H02H3/08 , H02H3/20 , H02H5/04
摘要： A protection device comprises a first substrate, a second substrate, a fusible element and a heating element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The fusible element is disposed on the first surface of the first substrate, and the heating element is disposed on the second surface of the second substrate and is disposed above the fusible element. When over-voltage or over-temperature occurs, the heating element heats up to blow the fusible element and thereby providing over-voltage and over-temperature protection.
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公开(公告)号：US10181715B2
公开(公告)日：2019-01-15
申请号：US15615340
申请日：2017-06-06
摘要： A protection device comprises a first planar substrate, a second planar substrate, a heating element, a fusible element and an absorbent element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The heating element is disposed on the first surface, and the fusible element is disposed above the heating element. The absorbent element is disposed on the second surface and above the fusible element. When over-current or over-temperature occurs, the heating element heats up to melt and blow the fusible element and the absorbent element absorbs melted metal of the fusible element.
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公开(公告)号：US10892130B2
公开(公告)日：2021-01-12
申请号：US15924841
申请日：2018-03-19
IPC分类号： H02H5/00 , H01H85/46 , H01H37/76 , H05K1/02 , H01H85/046
摘要： A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.
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公开(公告)号：US10147573B1
公开(公告)日：2018-12-04
申请号：US15662935
申请日：2017-07-28
IPC分类号： H01H37/76 , H01H37/34 , H01H37/64 , H01H85/041
摘要： A reflowable thermal fuse comprises a conduction element with first and second elastic portions, a sensor, a restraining element, a heating element and mounting pads. The first elastic portion is adapted to apply force on the conduction element in an activated state of the thermal fuse. The sensor is in mechanical communication with the first elastic portion of the conduction element. The restraining element is adapted to secure the second elastic portion of the conduction element and thereby prevent the second elastic portion from applying force on the conduction element in an installation state of the thermal fuse. Application of an activating current through the heating element causes heat generated and transferred to the restraining element and makes the restraining element to lose resilience, thereby releasing the second elastic portion and placing the thermal fuse in the activated state. The sensor loses its ability to hold the first elastic portion in place and allows the conduction element to open during a subsequent fault condition.
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