公开(公告)号：US20240290565A1

公开(公告)日：2024-08-29

申请号：US18304364

申请日：2023-04-21

申请人： Yageo Electronics (China)Co., LTD ,  BESTBRIGHT ELECTRONICS CO., LTD.

发明人： Tzu Yueh CHANG ,  Weiwei ZHAO

IPC分类号： H01H85/00 ,  H01H69/02 ,  H01H85/17 ,  H01H85/18 ,  H01H85/34 ,  H01H85/38

CPC分类号： H01H85/0082 ,  H01H69/02 ,  H01H85/17 ,  H01H85/18 ,  H01H85/34 ,  H01H85/38 ,  H01H2085/388

摘要： An explosion-proof over-current protection element includes a fuse body, a ceramic shell, an explosion-proof layer, an arc-extinguishing layer, and a protection layer. The fuse body includes two electrodes and a fuse wire between the electrodes. The fuse body is integrally formed. The fuse wire is arranged within a cavity of the ceramic shell. The electrodes protrude from inside of the cavity toward outside of the cavity to contact an outer wall of the ceramic shell. The explosion-proof layer is arranged within the cavity and contacts a bottom surface of the cavity. The arc-extinguishing layer is arranged within the cavity and covers the fuse wire. The explosion-proof layer and the arc-extinguishing layer are made of different materials. The protection layer is arranged within the cavity. The arc-extinguishing layer is located between the explosion-proof layer and the protection layer.

公开(公告)号：US20240021394A1

公开(公告)日：2024-01-18

申请号：US18198016

申请日：2023-05-16

申请人： Littelfuse, Inc.

发明人： ENGELBERT HETZMANNSEDER ,  DEREK LASINI ,  DAVID ARTHUR BURNS

IPC分类号： H01H85/08 ,  H01H85/38 ,  H01H39/00 ,  H01H85/18

CPC分类号： H01H85/08 ,  H01H85/38 ,  H01H39/006 ,  H01H85/18

摘要： An active/passive fuse module including a fuse having an electrically insulating fuse body, first and second endcaps disposed on opposing ends of the fuse body, a fusible element extending through the fuse body between the first endcap and the second endcap, and an arc quenching material disposed within the fuse body and surrounding the fusible element. The fuse module further includes a pyrotechnic interrupter (PI) coupled to the fuse body, the PI having a housing defining a shaft, a piston disposed within the shaft, a drive pin extending from the piston into the fuse body, the drive pin terminating in a cutter disposed adjacent the fusible element, and a pyrotechnic ignitor disposed within the shaft above the piston configured to detonate upon receiving an initiation signal from a controller, whereby the piston and the drive pin are forcibly driven through the shaft causing the cutter to separate the fusible element.

公开(公告)号：US11749484B2

公开(公告)日：2023-09-05

申请号：US17480748

申请日：2021-09-21

申请人： EATON INTELLIGENT POWER LIMITED

发明人： Michael Henricks

IPC分类号： H01H85/18 ,  H01H85/38

CPC分类号： H01H85/38 ,  H01H85/18 ,  H01H2085/383

摘要： An arc flash mitigation system includes a main circuit protector such as a high amperage overcurrent protection fuse, and an arc flash mitigation network connected in parallel to the main circuit protector. The arc flash mitigation network includes at least one semiconductor switch operable to provide a shunt current path to a low amperage arc mitigation fuse for a faster response time to certain circuit conditions than the main circuit protector otherwise provides. The semiconductor switch may be a silicon controller rectifier operatively responsive to a voltage drop across the main circuit protector in use.

公开(公告)号：US20210210300A1

公开(公告)日：2021-07-08

申请号：US16804974

申请日：2020-02-28

申请人： Conquer Electronics Co.,Ltd.

发明人： Hung-Chih CHIU ,  Po-Shuo CHIU

IPC分类号： H01H85/041 ,  H01H85/055 ,  H01H85/165 ,  H01H71/08 ,  H01H85/18

摘要： A surface-mount type micro fuse has a fusible element provided in a housing. The fusible element has a fusible body and two intermediary portions connected to both ends of the fusing portion. Two gaps are formed respectively between the fusible body and the intermediary portions. When the fusible element is blown out due to the transient abnormal current, the gaps between the intermediary portions cause a large distance instantaneously to prevent the arc. Then effectively ensure the safety of the use of the overall circuit.

公开(公告)号：US10483070B1

公开(公告)日：2019-11-19

申请号：US16264280

申请日：2019-01-31

申请人： Littelfuse, Inc.

发明人： James J. Beckert

IPC分类号： H01H69/02 ,  H01H85/18 ,  H01H85/00 ,  H01H85/12 ,  H01H85/147 ,  H01H85/143

摘要： A fuse may include a leadframe including a first terminal having a first end and a second end, and a second terminal having a first end and a second end. A bridge may connect the respective second ends of the terminals. The bridge may have one or more protrusions disposed between the terminals and may be extended from the bridge. A base may have first and second apertures, and the first and second terminals may be at least partially disposed into the respective first and second apertures. The base may further include one or more indentations such that respective ends of the one or more protrusions are received in each of the one or more indentations. A plurality of wires may be connected from the first terminal to the second terminal, and each of the protrusions therebetween.

公开(公告)号：US10388481B2

公开(公告)日：2019-08-20

申请号：US15520668

申请日：2015-10-21

申请人： Peter Lell

发明人： Peter Lell

IPC分类号： H01H1/00 ,  H01H33/36 ,  H01H39/00 ,  H01H85/10 ,  H01H85/18

摘要： A switch (10), particularly a disconnecting switch (10) for high direct currents and alternating currents at high voltages, can be transferred from a conducting position into a disconnecting position. The switch (10) is includes a housing (12), a first contact (28), a second contact (30), a switching piston (24) guided by the housing (12) with a connecting element (22), which establishes an electrical connection in the connecting position between the first contact (28) and the second contact (30). The housing (12) defines an interior space surrounding the connecting element (22). The connecting element (22) extends at least partially in the interior space (18) and is filled with an insulating medium (20), and the switch is designed such that a mechanical movement of the switching piston (24) transfers the switch (10) from the connecting position into the disconnecting position. The switching piston (24) mechanically impacts the connecting element (22) such that the electrical connection between the first contact (28) and the second contact (30) is interrupted in at least one disconnecting location.

公开(公告)号：US10340111B2

公开(公告)日：2019-07-02

申请号：US15579784

申请日：2016-06-02

申请人： TOYODA IRON WORKS CO., LTD.

发明人： Shunsuke Kawai ,  Hideaki Sakai ,  Yasuhiro Sone ,  Kunihiro Iwata

IPC分类号： H01H85/20 ,  H01H85/055 ,  H01H85/175 ,  H01H85/18 ,  H01H85/10

摘要： Provided herein is a fuse that includes a conductive member, two shielding portions arranged on the conductive member, and a case. The conductive member includes a two bars on each end of the conductive member and an element (e.g., melting portion) that integrally connects the two bars. The two shielding members are disk shaped and are situated on the conductive member between the element and the two bars. The case encloses the element and the two shielding members.

公开(公告)号：US20190148098A1

公开(公告)日：2019-05-16

申请号：US16246515

申请日：2019-01-13

申请人： LITTELFUSE, INC.

发明人： Michael Schlaak ,  Gregory Stumpo ,  Ken Venhaus ,  Derek Lasini

IPC分类号： H01H85/042 ,  H01H85/18 ,  H01H85/17 ,  H01H85/175 ,  H01H85/38 ,  H01H69/02 ,  H01H85/147

摘要： A fuse including a fuse body defining an inner cavity and having at least one fuse body aperture formed therethrough, a fuse element including a first terminal and a second terminal, a first endbell and a second endbell coupled to the fuse element, the first endbell having at least two grooves formed in a surface thereof and having a first O-ring seal disposed in at least one of the grooves, the second endbell having at least two grooves formed in a surface thereof and having a second O-ring seal disposed in at least one of the grooves, an adhesive securing the first and second endbells to the fuse body, an arc quenching material disposed within the inner cavity and contacting at least a portion of the fuse element, and end caps coupled to the fuse body, the end caps sealing a portion of the fuse element within the fuse body.

公开(公告)号：US09911564B2

公开(公告)日：2018-03-06

申请号：US15186861

申请日：2016-06-20

申请人： ONESUBSEA IP UK LIMITED

发明人： Aage Hadler-Jacobsen

IPC分类号： H01H85/18 ,  H01H85/40 ,  H01H85/00 ,  H01H85/02 ,  H01H9/02 ,  H01H85/175

CPC分类号： H01H85/003 ,  H01H9/02 ,  H01H85/0021 ,  H01H85/0026 ,  H01H85/0241 ,  H01H85/175 ,  H01H85/18 ,  H01H85/40 ,  H01H85/42 ,  H02B13/00

摘要： A pressure-compensated fuse assembly may include a first chamber housing a first fluid and a plurality of solid particles. Additionally, the fuse assembly may include a second chamber housing a second fluid. Further, the fuse assembly may include a pressure compensator disposed between the first chamber and the second chamber. The pressure compensator may be configured to transfer pressure from the second fluid in the second chamber to the plurality of solid particles in the first chamber.

公开(公告)号：US09892880B2

公开(公告)日：2018-02-13

申请号：US15005787

申请日：2016-01-25

申请人： LITTELFUSE, INC.

发明人： Florian Schmidt ,  Michael Hofmann ,  Pascal Jung

IPC分类号： H01H85/143 ,  H01H85/165 ,  H01H69/02 ,  H01H85/175 ,  H01H85/38 ,  H01H85/00 ,  H01H85/18

CPC分类号： H01H69/02 ,  H01H85/0086 ,  H01H85/143 ,  H01H85/165 ,  H01H85/1755 ,  H01H85/18 ,  H01H85/38 ,  H01H2085/383 ,  H01H2085/388 ,  Y10T29/49108

摘要： The present disclosure includes an insert for a fuse structure. In one approach, a fuse, includes a housing having a cavity, a fuse element disposed within the cavity, a plurality of terminals extending out of the housing and electrically connected to the fuse element, and an insert disposed in the cavity, the insert including a pin extending through an opening of the housing. In some approaches, the insert includes a separating wall defining first and second cavities of the insert.