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公开(公告)号：US20240355570A1
公开(公告)日：2024-10-24
申请号：US18763832
申请日：2024-07-03
IPC分类号： H01H85/055 , H01H69/02 , H01H85/045 , H01H85/10 , H01H85/11 , H01H85/12 , H01H85/143 , H01H85/175 , H01H85/18 , H01H85/20
CPC分类号： H01H85/055 , H01H69/02 , H01H85/0456 , H01H85/10 , H01H85/11 , H01H85/12 , H01H85/175 , H01H85/203 , H01H85/143 , H01H85/18 , H01H2239/044 , Y10T29/49108
摘要： In one embodiment, a method of manufacturing a high voltage power fuse includes inserting a housing over a first assembly leg of an assembly frame, assembling a first terminal fabrication to the first assembly leg of the assembly frame, assembling a second terminal fabrication to a second assembly leg of the assembly frame, connecting a full-range fuse element assembly in a gap between the first terminal fabrication and the second terminal fabrication, sliding the housing over the connected full-range fuse element assembly, securing the housing in position to enclose the full-range fuse element assembly, and applying a silicated filler material to the assembled housing, full-range fuse element, and first and second terminals to establish a mechanical bond between the silicated filler material and the assembled housing, full-range fuse element, and first and second terminals.
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公开(公告)号：US20230411099A1
公开(公告)日：2023-12-21
申请号：US18033848
申请日：2021-11-15
发明人： Yoshihiro YONEDA
摘要： A protective element includes: a fuse element which includes a blowout portion between a first end portion and a second end portion, and is energized in a first direction; and a case having a housing portion housing the blowout portion therein. A length in a thickness direction in a cross section perpendicular to the first direction of the blowout portion is less than or equal to a length in a width direction perpendicular to the thickness direction in the cross section. A first wall surface and a second wall surface that face each other in the thickness direction are provided in the housing portion. A distance in the thickness direction between the first wall surface and the second wall surface is 10 times or less the length in the thickness direction of the blowout portion.
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公开(公告)号：US11804352B2
公开(公告)日：2023-10-31
申请号：US17289163
申请日：2019-09-26
发明人： Kenji Osada
IPC分类号： H01H85/12 , H01H85/147 , H01H85/10 , H01H85/08
CPC分类号： H01H85/147 , H01H85/08 , H01H85/10 , H01H85/12
摘要： The present invention provides a fuse that has a stable fusing characteristic and is easily manufactured.
A fuse 600 includes: a fuse element 100 that is provided between a pair of terminal parts 110 and has a plurality of fuse parts 120; and a casing 200 for housing the fuse parts 120, wherein the fuse element 100 includes a first flat surface 140 and a second flat surface 150 which are shaped bent along a longitudinal direction P of the fuse element 100 and which extend in a linear manner along the longitudinal direction P, wherein the first flat surface 140 and the second flat surface 150 are provided with the plurality of fuse parts 120, and wherein the first flat surface 140 and the second flat surface 150 are contiguous to one other via a bent section 131.-
公开(公告)号：US20220157546A1
公开(公告)日：2022-05-19
申请号：US17589101
申请日：2022-01-31
申请人： Littelfuse, Inc.
IPC分类号： H01H85/175 , H01H85/10 , H01H85/20 , H01H85/165 , H01H69/02
摘要： Disclosed are various protection devices and associated methods. In some embodiments, a protection device may include a fuse assembly having a fusible link extending between a first lead end and a second lead end, and a first lead extending from the first lead end and a second lead extending from the second lead end. The protection device may further include a body including a first section coupleable with a second section, wherein the first and second sections define a central cavity housing the fusible link. The first section may include an interior face operable to engage an opposite interior face of the second section, an engagement member extending away from the interior face towards the second section, and an engagement channel adjacent the engagement member, the engagement channel operable to receive a corresponding engagement member of the second section.
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公开(公告)号：US11049682B2
公开(公告)日：2021-06-29
申请号：US16634687
申请日：2017-08-30
发明人： Yuji Shirakata , Kenta Fujii , Masahiro Ueno , Tomoaki Shimano
摘要： There is provided an electric-power conversion apparatus in which smoke emission, a burnout, and short-circuiting can be suppressed even when a fuse portion is melted by an excessive current and in which it is made possible that heat generated in the fuse portion is less likely to be transferred to the electric power semiconductor device. The electric-power conversion apparatus includes a fuse portion formed in an electrode wiring member, a fuse resin member that covers the fuse portion, and a sealing resin member that seals an electric power semiconductor device and the fuse portion in a case. Along a current-flowing direction, the fuse portion includes an upstream-side first step portion whose cross-sectional area is smaller than that of the portion at the upstream side thereof, a second step portion whose cross-sectional area is smaller than that of the upstream-side first step portion, and a downstream-side first step portion whose cross-sectional area is larger than that of the second step portion but is smaller than that of the portion at the downstream side thereof.
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公开(公告)号：US20200234905A1
公开(公告)日：2020-07-23
申请号：US16634687
申请日：2017-08-30
发明人： Yuji SHIRAKATA , Kenta FUJII , Masahiro UENO , Tomoaki SHIMANO
摘要： There is provided an electric-power conversion apparatus in which smoke emission, a burnout, and short-circuiting can be suppressed even when a fuse portion is melted by an excessive current and in which it is made possible that heat generated in the fuse portion is less likely to be transferred to the electric power semiconductor device. The electric-power conversion apparatus includes a fuse portion formed in an electrode wiring member, a fuse resin member that covers the fuse portion, and a sealing resin member that seals an electric power semiconductor device and the fuse portion in a case. Along a current-flowing direction, the fuse portion includes an upstream-side first step portion whose cross-sectional area is smaller than that of the portion at the upstream side thereof, a second step portion whose cross-sectional area is smaller than that of the upstream-side first step portion, and a downstream-side first step portion whose cross-sectional area is larger than that of the second step portion but is smaller than that of the portion at the downstream side thereof.
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公开(公告)号：US10431411B2
公开(公告)日：2019-10-01
申请号：US14441325
申请日：2013-11-14
IPC分类号： H01H85/38 , H01H85/055 , H01H85/175 , H01H85/00 , H01H85/042 , H01H85/08 , H01H85/18 , H01H85/10
摘要： The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.
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公开(公告)号：US20190287751A1
公开(公告)日：2019-09-19
申请号：US16301663
申请日：2017-05-15
申请人： ARIANEGROUP SAS
摘要： A breaker device for connecting in an electrical circuit, the device includes a pyrotechnic initiator and a body having present therein: a pressurizing chamber in communication with an outlet from the pyrotechnic initiator; at least one electrically conductive portion for connection to the electrical circuit; at least one fusible element connected in series with the conductive portion, the initiator being connected to the terminals of the fusible element and the fusible element being configured to trip when the current passing through it exceeds a predetermined value, thereby actuating the initiator; and a movable breaker element; the pyrotechnic initiator being configured to cause the breaker device to pass from a current-passing first configuration to a circuit-breaking second configuration, the movable breaker element being moved on passing from the first configuration to the second in order to disconnect the conductive portion.
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公开(公告)号：US10297410B2
公开(公告)日：2019-05-21
申请号：US14764345
申请日：2014-01-29
发明人： Hiroyoshi Hosomizo , Mitsuru Ando
IPC分类号： H01H85/143 , H01H85/10 , H01H85/12 , H01H69/02 , H01H85/153
摘要： A fuse element including a pair of terminal sections positioned at opposite ends of the fuse element, a plurality of spaced parallel rows of elements connecting the terminal sections, and a plurality of fused sections formed in substantially central sections of the elements, wherein the terminal sections and the elements or the elements alone are formed by stamping a single metal plate to separate a piece having a predetermined shape therefrom and bending the piece into a predetermined three-dimensional shape.
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公开(公告)号：US20170263407A1
公开(公告)日：2017-09-14
申请号：US15606081
申请日：2017-05-26
申请人： Littelfuse, Inc.
发明人： Michael Schlaak , Gregory Stumpo , Ken Venhaus , Derek Lasini
IPC分类号： H01H85/042 , H01H69/02 , H01H85/175 , H01H85/18 , H01H85/08 , H01H85/10
CPC分类号： H01H85/042 , H01H69/02 , H01H85/08 , H01H85/10 , H01H85/175 , H01H85/18 , H01H85/185 , H01H85/38 , Y10T29/49107
摘要： A fuse includes a fuse element and a fuse body. A portion of the fuse element is housed in a fuse body. The fuse element includes a first terminal and a second terminal disposed outside of the fuse body. The first terminal and the second terminal electrically connects the fuse element to a circuit to be protected and a power source. A first endbell and a second endbell is coupled to the fuse element. A predetermined amount of arc quenching material is disposed within the fuse body. The arc quenching material contacts at least a portion of the fuse element. The predetermined amount of the arc quenching material is less than a total volume size of the fuse tube. The arc quenching material is compacted. A remaining air gap in the fuse tube is filled with a liquid adhesive and cured to a solid state.
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