公开(公告)号：US12057283B2

公开(公告)日：2024-08-06

申请号：US17422185

申请日：2019-11-18

申请人： DEHN SE

发明人： Arnd Ehrhardt ,  Ralph Brocke ,  Peter Zahlmann

IPC分类号： H01H85/055 ,  H01H9/32 ,  H01H9/46 ,  H01H85/02 ,  H01H85/165 ,  H01T1/02 ,  H01T1/14 ,  H01T2/02 ,  H01T4/14

CPC分类号： H01H85/055 ,  H01H9/32 ,  H01H9/46 ,  H01H85/0241 ,  H01H85/165 ,  H01T1/02 ,  H01T1/14 ,  H01T2/02 ,  H01T4/14

摘要： The invention relates to an overvoltage protection arrangement comprising a horn spark gap located in a housing, with a chamber for arc quenching, wherein a trigger electrode is located in the ignition region of the horn spark gap, wherein a disconnecting element is provided that interrupts a connection between a trigger circuit and the trigger electrode, and thus disconnects the trigger electrode, wherein the disconnecting element is tripped or controlled by an evaluation unit that is subject to and reacts to the loading of a power follow-on current.

公开(公告)号：US20240222060A1

公开(公告)日：2024-07-04

申请号：US18602849

申请日：2024-03-12

申请人： ABB SCHWEIZ AG

发明人： Matthew D. Cawood

IPC分类号： H01H85/165 ,  H01H85/055

CPC分类号： H01H85/165 ,  H01H85/055

摘要： A fuse assembly having a displaceable pin assembly secured within a cap bore of an end cap of the fuse assembly. The displaceable pin assembly can include a plunger that is selectively displaceable along an axis that is non-parallel to a central longitudinal axis of the first end cap. The plunger can be selectively displaceable between an extended position at which at least a first end of the plunger is outwardly positioned away from an outer surface of the first end cap, and a recessed position at which the first end of the plunger is recessed within, or generally aligned with the outer surface of, the first end cap. The displaceable pin assembly can also include a biasing element that can bias the plunger to the extended position, and a support body that can house at least a portion of the plunger and be securely coupled to the cap bore.

公开(公告)号：US12020882B2

公开(公告)日：2024-06-25

申请号：US17395757

申请日：2021-08-06

申请人： Littelfuse, Inc.

发明人： Robert Olszewski ,  Jeremy Huang

IPC分类号： H01H85/055 ,  H01H85/02 ,  H01H85/165

CPC分类号： H01H85/055 ,  H01H85/165 ,  H01H2085/025

摘要： Provided herein is a fuse assembly including an anti-rotation device. In some embodiments, the fuse assembly may include a fusible device connected to a conductive component, wherein the conductive component is operable to connect to a terminal of a power source and a securement device coupled to the fusible device. The securement device may include a body including a recess operable to receive the fusible device and a support post extending from the body, wherein the support post is operable to engage the power source to reduce rotation of the securement device and the fusible device relative to the power source.

公开(公告)号：US20240013997A1

公开(公告)日：2024-01-11

申请号：US17933668

申请日：2022-09-20

申请人： SIBA Fuses GmbH

发明人： Dirk Wilhelm

IPC分类号： H01H85/055 ,  H01H85/143 ,  H01H85/165

CPC分类号： H01H85/055 ,  H01H85/143 ,  H01H85/165

摘要： A HV HRC fuse, in particular a HH full-range fuse, for a drop-out fuse system with a drop-out release mechanism has an outer fuse housing, wherein at least one melting conductor, which is wound around at least one winding body, is provided in the fuse housing. The fuse housing is at least partially open on two end faces and a contact cap designed for electrical contacting is arranged on each end face of the fuse housing. The upper contact cap is detachably connectable in a contacting position with the drop-out release mechanism and the lower contact cap is pivotally mounted on the drop-out release mechanism. Tripping of the HV HRC fuse results in tripping of the drop-out release mechanism, whereby the upper contact cap is separated from the drop-out release mechanism and the HV HRC fuse swings out from the contacting position to a swing-out position.

公开(公告)号：US20230402243A1

公开(公告)日：2023-12-14

申请号：US17857632

申请日：2022-07-05

申请人： CONQUER ELECTRONICS CO.,LTD.

发明人： Hung-Chih CHIU ,  Po-Shuo CHIU

IPC分类号： H01H85/055 ,  H01H85/165 ,  H01H85/143

CPC分类号： H01H85/055 ,  H01H85/143 ,  H01H85/165

摘要： The present invention relates to a protection element having a cover. The protection element has a base and a cover. The base has a low melting point alloy layer. The cover has a receiving recess and a guiding passage. The guiding passage corresponds to a melting area of the low melting point alloy layer. The flux is arranged on the accommodating groove of the cover body. When the flux is melted, the flux flows to the guiding passage so that the flux is kept on the melting area of the low melting point alloy layer. Therefore, it is only necessary to place the flux in the receiving recess during manufacture, which can effectively reduce the manufacturing steps and thus reduce the production cost.

公开(公告)号：US20230326701A1

公开(公告)日：2023-10-12

申请号：US17716265

申请日：2022-04-08

申请人： RIPD IP DEVELOPMENT LTD.

发明人： Robert Rozman ,  Zumret Topcagic

IPC分类号： H01H85/165 ,  H01H85/055 ,  H01H85/143

CPC分类号： H01H85/165 ,  H01H85/055 ,  H01H85/143

摘要： An electrical fuse assembly includes a housing defining a hermetically sealed chamber, first and second terminal electrodes mounted on the housing, a gas contained in the hermetically sealed chamber, a fuse element electrically connecting the first and second terminal electrodes, and at least one spark gap between the first and second terminal electrodes. The fuse element and the at least one spark gap are disposed in the hermetically sealed chamber.

公开(公告)号：US11749483B1

公开(公告)日：2023-09-05

申请号：US17723910

申请日：2022-04-19

申请人： Littelfuse, Inc.

发明人： Lily Espenilla Rosios ,  Ralph Pechon Labonite ,  Arnel Alibuyog Ramos

IPC分类号： H01H85/175 ,  H01H85/165 ,  H01H85/20 ,  H01H85/42 ,  H01H85/12 ,  H01H85/041

CPC分类号： H01H85/165 ,  H01H85/12 ,  H01H85/1755 ,  H01H85/2045 ,  H01H85/42 ,  H01H2085/0414

摘要： A fuse including a fuse body having a base with a central portion and first and second sidewalls, the central portion having first and second fastening holes formed therethrough, a mid-body disposed atop the central portion and having first and second troughs formed in a top surface thereof and separated by a partition wall, the mid-body further having first and second through holes formed therethrough, and a cover disposed atop the mid-body and having a central portion and first and second sidewalls, the central portion having first and second fastening bosses extending therefrom and through the first and second through holes of the mid-body and the first and second fastening holes of the base, and a conductive portion including first and second terminal portions connected by parallel first and second fuse members disposed within the first and second troughs of the mid-body and separated by the partition wall.

公开(公告)号：US11721512B2

公开(公告)日：2023-08-08

申请号：US17589101

申请日：2022-01-31

申请人： Littelfuse, Inc.

发明人： Werner Johler ,  Arnel Ramos ,  Conrado Sagun De Leon ,  Joshua Miles Felicilda

IPC分类号： H01H69/02 ,  H01H85/175 ,  H01H85/20 ,  H01H85/10 ,  H01H85/165 ,  H01H37/76 ,  H01H85/02

CPC分类号： H01H85/1755 ,  H01H69/02 ,  H01H85/10 ,  H01H85/165 ,  H01H85/175 ,  H01H85/205 ,  H01H85/2045 ,  H01H37/761 ,  H01H2085/0275 ,  H01H2085/2085 ,  H05K2201/10181

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.

公开(公告)号：US11688577B2

公开(公告)日：2023-06-27

申请号：US17329182

申请日：2021-05-25

申请人： XIAMEN SET ELECTRONICS CO., LTD

发明人： Yaoxiang Hong

IPC分类号： H01H85/12 ,  H01H85/165 ,  H01H85/38 ,  H01H85/143

CPC分类号： H01H85/12 ,  H01H85/143 ,  H01H85/165 ,  H01H85/38

摘要： A high-voltage direct-current thermal fuse includes one or more fusible components each having two fusible alloy support arms, a fluxing agent, a fusing cavity, two pins, and an insulation block. Two fusible alloy support arms are arranged opposite, and the fusible component is U-shaped. The fusible component and the fluxing agent are sealed within the fusing cavity. The two pins are respectively connected to the two fusible alloy support arms. The insulation block is arranged between the two fusible alloy support arms and separates the two pins. A volume ratio of the fluxing agent to the fusing cavity is approximately 50% or less, preferably, 10%-50%. The number of the one or more fusible components is at least two, and the at least two fusible components are arranged separately. The thermal fuse can avoid the burst and quickly cut off the current, which provides effective thermal protection for a circuit.

公开(公告)号：US11651923B2

公开(公告)日：2023-05-16

申请号：US17530038

申请日：2021-11-18

申请人： Littelfuse, Inc.

发明人： David Arthur Burns ,  Jon Richard ,  Ganesh Nagaraj Chennakesavelu ,  Derek Lasini ,  Scott Faust

IPC分类号： H01H85/165 ,  H01H85/143

CPC分类号： H01H85/143 ,  H01H85/165

摘要： A novel fuse assembly design utilizes a fuse body, a single-piece terminal assembly and a two-piece endbell. The terminal assembly is disposed within the fuse body and includes first and second opposing surfaces with a fuse element extending between a first terminal and a second terminal. The endbell, to be connected to the fuse body, includes first and second endbell portions. Formed within the first endbell portion is a first receptacle and extending from the first endbell portion is a first protrusion. Formed within the second endbell portion is a second receptacle and extending from the second endbell portion is a second protrusion. When the two endbell portions are fastened to one another with the terminal assembly sandwiched between them, the first protrusion engages the second receptacle and the second protrusion engages the first receptacle.